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  • 1. Adolph, C
    et al.
    Angelstein, M
    Bashkanov, M
    Bechstedt, U
    Belostotski, S
    Berlowski, M
    Bhatt, H
    Bisplinghoff, J
    Bondar, A
    Borasoy, B
    Buescher, M
    Calèn, H
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Chandwani, K
    Clement, H
    Czerwinski, E
    Czyzykiewicz, R
    D'Orsaneo, G
    Duniec, D
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. Uppsala University, The Svedberg Laboratory.
    Ekström, C
    Uppsala University, The Svedberg Laboratory.
    Engels, R
    Erven, W
    Eyrich, W
    Fedorets, P
    Felden, O
    Fransson, K
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Gil, D
    Goldenbaum, F
    Grigoryev, K
    Heczko, A
    Hanhart, C
    Hejny, V
    Hinterberger, F
    Hodana, M
    Hoeistad, B
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Izotov, A
    Jacewicz, M
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Janusz, M
    Jany, R
    Jarczyk, L
    Johansson, T
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Kamys, B
    Kemmerling, G
    Keshelashvili, I
    Khakimova, O
    Khoukaz, A
    Kilian, K
    Kimura, N
    Kistryn, S
    Klaja, J
    Klaja, P
    Kleines, H
    Klos, B
    Kowalczyk, A
    Kren, F
    Krzemien, W
    Kulessa, P
    Kullander, S
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Kupsc, A
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Kuzmin, A
    Kyryanchuk, V
    Majewski, J
    Machner, H
    Magiera, A
    Maier, R
    Marciniewski, R
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Migdal, W
    Meissner, U.-G.
    Mikirtychiants, M
    Miklukho, O
    Milke, N
    Mittag, M
    Moskal, P
    Nandi, K
    Nawrot, A
    Nissler, R
    Odoyo, A
    Oelert, W
    Ohm, H
    Paul, N
    Pauly, C
    Petukhov, Y
    Piskunov, N
    Plucinski, P
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Podkopal, P
    Povtoreyko, A
    Prasuhn, D
    Pricking, A
    Pysz, K
    Rachowski, J
    Rausmann, T
    Redmer, F
    Ritman, J
    Roy, A
    Ruber, R. J. M. Y
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Rudy, Z
    Salmin, R
    Schadmand, S
    Schmidt, A
    Schneider, H
    Schroeder, W
    Scobel, W
    Sefzick, T
    Serdyuk, V
    Shah, N
    Siemaszko, M
    Siudak, R
    Skorodko, T
    Smolinski, T
    Smyrski, J
    Sopov, V
    Spoelgen, D
    Stepaniak, J
    Sterzenbach, G
    Stroeher, H
    Szczurek, A
    Teufel, A
    Tolba, T
    Trzcinski, A
    Ulbrich, K
    Varma, R
    Vlasov, P
    Weglorz, W
    Winnemoeller, A
    Wirzba, A
    Wolke, M
    Wronska, A
    Wuestner, R
    Xu, H
    Yamamoto, A
    Yamaoka, H
    Yuan, X
    Yurev, L
    Zabierowski, J
    Zheng, C
    Zielinski, J
    Zipper, W
    Zlomanczuk, J
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Zwoll, K
    Zychor, I
    Measurement of the eta -> 3 pi(0) Dalitz plot distribution with the WASA detector at COSY2009In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 677, no 1-2, p. 24-29Article in journal (Refereed)
    Abstract [en]

    In the first production run of the WASA experiment at COSY, the eta decay into three neutral pions was measured in proton-proton interactions at a proton beam kinetic energy of 1.4 GeV. The Dalitz plot of the three pious was Studied using 1.2 x 10(5) fully reconstructed events. and the quadratic slope parameter alpha was determined to be -0.027 +/- 0.008(stat) +/- 0.005(syst). The result is consistent with previous measurements and further corroborates the importance of pion-pion final state interactions. (C) 2009 Elsevier B.V. All rights reserved.

  • 2. Aichelin, J
    et al.
    Blomgren, J
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research. Department of Physics and Astronomy, Applied Nuclear Physics.
    Budzanowski, A
    Chubarov, M
    Ekström, C
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Applied Nuclear Physics.
    Jakobsson, B
    Kolozhvari, A
    Lozhkin, O
    Murin, Y
    Nomonokov, P
    Olsson, N
    Pljuschev, V
    Skwirczynska, I
    Tang, H
    Tegnér, P-E
    Westerberg, L
    Zubkov, M
    Watanabe, Y
    Inverse kinematics for study of intermediate energy reactions relevant to SEE and medical problems2005In: Proc. of the Int. Conf. on Nuclear Data for Science and Technology: Santa Fé, New Mexico, USA, September 26-october 1, 2004, 2005, p. 1624-Conference paper (Refereed)
  • 3.
    Aichelin, J.
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research.
    Blomgren, Jan
    Interfaculty Units, The Svedberg Laboratory.
    Budzanowski, A.
    Chubarov, M.
    Ekström, Curt
    Jakobsson, Bo
    Kolozhvari, Anatoly
    Lozhkin, O
    Murin, Yuri
    Nomokonov, P.
    Olsson, Nils
    Pljuschev, V.
    Skwirczynska, I.
    Tang, H. H. K.
    Tegner, Per-Erik
    Watanabe, Y.
    Westerber,
    Inverse Kinematics Studies of Intermediate Energy Reactions Relevant for Single Event Effects in Microelectronics and Medical Applications2003In: Proc. Neutron Mesurements for Applications Enlargement Workshop (NEMEA), Budapest, Hungary, 2003., 2003Conference paper (Other scientific)
  • 4.
    Al-Adili, Ali
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Alhassan, Erwin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Helgesson, Petter
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Jansson, Kaj
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Koning, Arjan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Nucl Res & Consultancy Grp NRG, Petten, Netherlands.
    Lantz, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Mattera, Andrea
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Uppsala University, The Svedberg Laboratory.
    Rakopoulos, Vasileios
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Sjöstrand, Henrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Solders, Andreas
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tarrío, Diego
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Fission Activities of the Nuclear Reactions Group in Uppsala2015In: Scientific Workshop on Nuclear Fission Dynamics and the Emission of Prompt Neutrons and Gamma Rays, THEORY-3 / [ed] Franz-Josef Hambsch and Nicolae Carjan, 2015, p. 145-149Conference paper (Refereed)
    Abstract [en]

    This paper highlights some of the main activities related to fission of the nuclear reactions group at Uppsala University. The group is involved for instance in fission yield experiments at the IGISOL facility, cross-section measurements at the NFS facility, as well as fission dynamics studies at the IRMM JRC-EC. Moreover, work is ongoing on the Total Monte Carlo (TMC) methodology and on including the GEF fission code into the TALYS nuclear reaction code. Selected results from these projects are discussed.

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  • 5. Andersson, M.
    et al.
    Bargholtz, C.
    Blomquist, J.
    Fransson, K.
    Geren, L.
    Holmberg, L.
    Lindberg, K.
    Lindh, K.
    Nyberg, J.
    Uppsala University, The Svedberg Laboratory. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Tegner, P.-E.
    Rolander, K.W.
    Study of the pionic fusion reaction 3He + 3He -> 6Li* + pi+ at CELSIUS2003In: Physica Scripta, 2003, p. 105-106Conference paper (Refereed)
  • 6.
    Andersson, M
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Bargholtz, C
    Interfaculty Units, The Svedberg Laboratory.
    Calen, H
    Fransson, K
    Fransson, K
    Fumero, E
    Holmberg, L
    Johanson, J
    Johansson, T
    Lindh, K
    Martensson, L
    Sitnikova, I
    Sukhanov, A
    Tegner, PE
    Engblom, PT
    Weiss, G
    Rolander, KW
    Zlomanczuk, J
    Isospin resolved double pion production in the reaction p+d -> He-3+2 pi2000In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 485, no 4, p. 327-333Article in journal (Refereed)
    Abstract [en]

    Neutral and charged two-pion production in p + d --> He-3 + 2 pi reactions has been studied at CELSIUS at a proton beam energy of 477 MeV. The total cross section for double pion production is 0.22 +/- 0.03 mu b. The ratio of the cross sections for the pr

  • 7.
    Andersson, M
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Bargholtz, C
    Interfaculty Units, The Svedberg Laboratory.
    Calen, H
    Fransson, K
    Fransson, K
    Fumero, E
    Holmberg, L
    Johanson, J
    Johansson, T
    Lindh, K
    Martensson, L
    Sitnikova, I
    Sukhanov, A
    Tegner, PE
    Engblom, PT
    Weiss, G
    Rolander, KW
    Zlomanczuk, J
    The exclusive p plus d -> He-3+2 pi reaction at CELSIUS2000In: ACTA PHYSICA POLONICA B, ACTA PHYSICA POLONICA B, JAGELLONIAN UNIV, INST PHYSICS , 2000, Vol. B31, no 10-11, p. 2123-2126Conference paper (Refereed)
    Abstract [en]

    Neutral and charged two-pion production in p + d --> He-3 --> 2 pi reactions has been studied at a proton beam energy of 477 MeV. The total cross section for double pion production is 0.22 +/- 0.03 mub. The ratio of the cross sections for the production o

  • 8.
    Andersson, M.
    et al.
    Uppsala University, The Svedberg Laboratory.
    Bargholtz, Christoph
    Fransson, Kjell
    Fumero, E.
    Gerén, L.
    Holmberg, L.
    Lindh, K.
    Mårtensson, L.
    Sitnikova, I.
    Tegnér, Per-Erik
    Weiss, G.
    Wilhelmsen Rolander, Katarina
    Pionic Fusion Study of the Halo Nucleus 6He in the Reaction d + 14N -> 6He + pi+ at CELSIUS2002In: Proc. 14th Nordic Meeting on Intermediate and High Energy Nuclear Physics, Gräftåvallen, Sweden, 2002., 2002Conference paper (Other academic)
  • 9.
    Andersson, Pernilla
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Bevilacqua, Riccardo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Blomgren, Jan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hjalmarsson, Anders
    Uppsala University, The Svedberg Laboratory.
    Kolozhvari, A.
    LeColley, F. -R
    Marie, Nathalie
    Uppsala University, The Svedberg Laboratory.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Simutkin, Vasily D.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tesinsky, Milan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tippawan, U.
    An upgrade of the SCANDAL setup for measurements of elastic neutron scattering at 175 MeV2010In: Radiation Measurements, ISSN 1350-4487, E-ISSN 1879-0925, Vol. 45, no 10, p. 1142-1144Article in journal (Refereed)
    Abstract [en]

    The experimental setup SCANDAL used for measurements of the differential cross section for elastic and inelastic neutron scattering, has recently been upgraded with larger CsI scintillating detectors to enable measurements at energies up to 175 MeV. Measurements on Fe. Bi and Si have been carried out using the quasi mono-energetic neutron beam at the The Svedberg Laboratory, and data is under analysis. The experimental setup can be used for measurements on a wide range of target nuclei, including C and O, which are important for dosimetry applications. SCANDAL can also run in proton mode, for measurements of the (n,p) reaction. This paper describes the new experimental setup, and reports on its properties, such as energy resolution.

  • 10. Anelli, A.
    et al.
    Battistoni, G.
    Bertolucci, S.
    Bini, C.
    Branchini, P.
    Curceanu, C.
    De Zorzi, G.
    Di Domenico, A.
    Di Micco, B.
    Ferrari, A.
    Gauzzi, P.
    Giovannella, S.
    Happacher, F.
    Iliescu, M.
    Martini, M.
    Miscetti, S.
    Nguyen, F.
    Passeri, A.
    Prokofiev, A.
    Sala, P.
    Sciascia, B.
    Sirghi, F.
    Uppsala University, The Svedberg Laboratory.
    Measurement and simulation of the neutron response and detection efficiency of a Pb-scintillating fiber calorimeter2008In: IEEE Transactions on Nuclear Science, ISSN 0018-9499, E-ISSN 1558-1578, Vol. 55, no 3, p. 1409-1412Article in journal (Refereed)
    Abstract [en]

    We have measured the overall detection efficiency to neutrons of a small prototype of the KLOE Pb-scintillating fiber calorimeter in the kinetic energy range [5,175] MeV. using the neutron beam facility of The Svedberg Laboratory, TSL, Uppsala. The measurement of the neutron detection efficiency of a NE110 scintillator provided a reference calibration. At the lowest trigger threshold, the overall calorimeter efficiency ranges from 28% to 33%. This value largely exceeds the estimated similar to 8% expected if the response were proportional only to the scintillator equivalent thickness. A detailed simulation of the calorimeter and of the TSL beamline has been performed with the FLUKA Monte Carlo code. The simulated response of the detector to neutrons is presented together with first data to Monte Carlo comparison. The results show an overall neutron efficiency of about 35%. The reasons for such an efficiency enhancement, in comparison with the typical scintillator-based neutron counters, are explained, opening the road to a novel neutron detector.

  • 11. Anelli, M.
    et al.
    Battistoni, G.
    Bertolucci, S.
    Bini, C.
    Branchini, P.
    Curceanu, C.
    De Zorzi, G.
    Di Domenico, A.
    Di Micco, B.
    Ferrari, A.
    Fiore, S.
    Gauzzi, P.
    Giovannella, S.
    Happacher, F.
    Iliescu, M.
    Martini, M.
    Miscetti, S.
    Nguyen, F.
    Passeri, A.
    Prokofiev, Alexander
    Uppsala University, The Svedberg Laboratory.
    Sala, P.
    Sciascia, B.
    Sirghi, F.
    Measurement of the detection efficiency of the KLOE calorimeter for neutrons between 22 and 174 MeV2009In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 598, no 1, p. 244-247Article in journal (Refereed)
    Abstract [en]

    A prototype of the high-sampling lead-scintillating fiber KLOE calorimeter has been exposed to neutron beams of 21, 46 and 174 MeV, provided by the The Svedberg Laboratory, Uppsala, to test its neutron detection efficiency. The measurement of the neutron detection efficiency of an NE110 scintillator provided a reference calibration. The measured efficiency is larger than what expected considering the scintillator thickness of the KLOE prototype only. This result proves the existence of a contribution from the passive material to neutron detection efficiency, in a high-sampling calorimeter configuration.

  • 12. Anelli, M.
    et al.
    Battistoni, G.
    Bertolucci, S.
    Bini, C.
    Branchini, P.
    Curceanu, C.
    De Zorzi, G.
    Di Domenico, A.
    Di Micco, B.
    Ferrari, A.
    Gauzzi, P.
    Giovannella, S.
    Happacher, F.
    Iliescu, M.
    Martini, M.
    Miscetti, S.
    Nguyen, F.
    Passerl, A.
    Prokofiev, Alexander
    Uppsala University, The Svedberg Laboratory.
    Sala, P.
    Sciascia, B.
    Sirghi, F.
    Measurement and simulation of the neutron response and detection efficiency of a Pb-scintillating fiber calorimeter2007In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 581, no 1-2, p. 368-372Article in journal (Refereed)
    Abstract [en]

    The overall detection efficiency to neutrons of a small prototype of the KLOE Pb-scintillating fiber calorimeter has been measured at the neutron beam facility of The Svedberg Laboratory, TSL, Uppsala, in the kinetic energy range 5-175 MeV. The measurement of the neutron detection efficiency of a NE110 scintillator provided a reference calibration. At the lowest trigger threshold, the overall calorimeter efficiency ranges from 40% to 50%. This value largely exceeds the estimated 8-16% expected if the response were proportional only to the scintillator equivalent thickness. A detailed simulation of the calorimeter and of the TSL beamline has been performed with the FLUKA Monte Carlo code. The simulated response of the detector to neutrons is presented, as well as a first data Monte Carlo comparison. The results show an overall neutron efficiency of about 50%, when no trigger threshold is applied. The reasons of such an efficiency enhancement, in comparison with the typical scintillator-based neutron counters, are explained, opening the road to a novel neutron detector.

  • 13. Anelli, M.
    et al.
    Bertolucci, S.
    Bini, C.
    Branchini, P.
    Corradi, G.
    Curceanu, C.
    De Zorzi, G.
    Di Domenico, A.
    Di Micco, B.
    Ferrari, A.
    Fiore, S.
    Gauzzi, P.
    Giovannella, S.
    Happacher, F.
    Iliescu, M.
    Luca, A.
    Martini, M.
    Miscetti, S.
    Nguyen, F.
    Passeri, A.
    Prokofiev, Alexander
    Uppsala University, The Svedberg Laboratory.
    Sarra, I.
    Sciascia, B.
    Sirghi, F.
    Tagnani, D.
    Measurement of neutron detection efficiency between 22 and 174 MeV using two different kinds of Pb-scintillating fiber sampling calorimeters2010In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 617, no 1-3, p. 107-108Article in journal (Refereed)
    Abstract [en]

    We exposed a prototype of the lead-scintillating fiber KLOE calorimeter to neutron beam of 21, 46 and 174 MeV at The Svedberg Laboratory, Uppsala, to study its neutron detection efficiency. This has been found larger than what expected considering the scintillator thickness of the prototype. We show preliminary measurement carried out with a different prototype with a larger lead/fiber ratio, which proves the relevance of passive material to neutron detection efficiency in this kind of calorimeters.

  • 14. Anelli, M.
    et al.
    Bertolucci, S.
    Bini, C.
    Branchini, P.
    Corradi, G.
    Curceanu, C.
    De Zorzi, G.
    Di Domenico, A.
    Di Micco, B.
    Ferrari, A.
    Fiore, S.
    Gauzzi, P.
    Giovannella, S.
    Happacher, F.
    Iliescu, M.
    Luca, A.
    Martini, M.
    Miscetti, S.
    Nguyen, F.
    Passeri, A.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Sarra, I.
    Sciascia, B.
    Sirghi, F.
    Tagnani, D.
    Measurement of the neutron detection efficiency of a 80% absorber-20% scintillating fibers calorimeter2011In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 626, p. 67-71Article in journal (Refereed)
    Abstract [en]

    The neutron detection efficiency of a sampling calorimeter made of 1 mm diameter scintillating fibers embedded in a lead/bismuth structure has been measured at the neutron beam of The Svedberg Laboratory at Uppsala. A significant enhancement of the detection efficiency with respect to a bulk organic scintillator detector with the same thickness is observed.

  • 15. Anelli, M.
    et al.
    Bertolucci, S.
    Bini, C.
    Branchini, P.
    Curceanu, C.
    De Zorzi, G.
    Di Domenico, A.
    Di Micco, B.
    Ferrari, A.
    Fiore, S.
    Gauzzi, P.
    Giovannella, S.
    Happacher, F.
    Iliescu, M.
    Martini, M.
    Miscetti, S.
    Nguyen, F.
    Passeri, A.
    Prokofiev, Alexander
    Uppsala University, The Svedberg Laboratory.
    Sciascia, B.
    Sirghi, F.
    Measurement and simulation of neutron detection efficiency in lead-scintillating fiber calorimeters2009In: Nuclear physics B, Proceedings supplements, ISSN 0920-5632, E-ISSN 1873-3832, Vol. 197, no 1, p. 353-357Article in journal (Refereed)
    Abstract [en]

    The overall detection efficiency to neutrons of a small prototype of the KLOE lead-scintillating fiber calorimeter has been measured at the neutron beam facility of The Svedberg Laboratory, TSL, Uppsala, in the kinetic energy range [5-175] MeV. The measurement of the neutron detection efficiency of a NE110 scintillator provided a reference calibration. At the lowest trigger threshold, the overall calorimeter efficiency ranges from 30% to 50%. This value largely exceeds the estimated 8-15% expected if the response were proportional only to the scintillator equivalent thickness. A detailed simulation of the calorimeter and of the TSL beam line has been performed with the FLUKA Monte Carlo code. First data-MC comparisons are encouraging and allow to disentangle a neutron halo component in the beam.

  • 16. Anelli, M.
    et al.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Measurement and simulation of the neutron response and detection efficiency of a Pb-scintillating fiber calorimeter2007In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 581, no 1-2, p. 368-372Article in journal (Refereed)
  • 17. Anelli, M.
    et al.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Measurement of the detection efficiency of the KLOE calorimeter for neutrons between 22 and 174 MeV2009In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 598, no 1, p. 244-247Article in journal (Refereed)
  • 18.
    AVDEICHIKOV, V
    et al.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory.
    BOGDANOV, A
    LOZHKIN, O
    MURIN, Y
    ZUBKOV, M
    NYBO, K
    OLBERG, E
    THORSTEINSEN, TF
    BONDORF, J
    SNEPPEN, K
    BERG, M
    CARLEN, L
    ELMER, R
    GHETTI, R
    JAKOBSSON, B
    NOREN, B
    GUTTORMSEN, M
    LOVHOIDEN, G
    NYBERG, Johan
    WESTERBERG, Lars
    EXPERIMENTAL ISOTOPIC EFFECTS IN COMPARISON TO STATISTICAL PRESCRIPTIONS FOR FRAGMENT PRODUCTION IN 32A MEV AND 14A MEV N-14 PLUS SN-112,SN-124 REACTIONS1994In: PHYSICA SCRIPTA, Vol. 50, no 6, p. 624-627Article in journal (Refereed)
    Abstract [en]

    Results on isotopic effects in the production of light fragments in reactions of 14A and 32A MeV N-14 ions with Sn-112 and Sn-124 are presented The data are discussed in the frameworks of classical Weisskopf evaporation and an alternative Fermi gas prescr

  • 19.
    Avdeichikov, V
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Carlén, L
    Interfaculty Units, The Svedberg Laboratory.
    Guttormsen, M
    Fokin, A
    Jakobsson, B
    Murin, Y
    Mårtensson, J
    Oskarsson, A
    van Veldhuizen, Elbert Jan
    Westerberg, Lars
    Whitlow, HJ
    CHICSi - a 3 pi multi-detector system for studying heavy ion interactions inside a storage ring1997In: NUCLEAR PHYSICS A, Vol. 626, no 1-2, p. 439C-446CArticle in journal (Refereed)
    Abstract [en]

    CHICSi - a 3 pi multi-detector system is presented. The setup consists of 576 ultra high vacuum compatible telescopes to study intermediate energy heavy ion as well as proton induced collisions at storage rings operating in slow ramping mode. Primary it w

  • 20.
    Avdeichikov, V
    et al.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory.
    Jakobsson, B
    Nikitin, VA
    Nomokonov, PV
    van, Veldhuizen EJ
    On-beam calibration of the Delta E(Si)-Sci/PD charged particle telescope2001In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, ISSN 0168-9002, Vol. 466, no 3, p. 427-435Article in journal (Refereed)
    Abstract [en]

    The reaction products emitted in the N-14(45A Mev) + (CH2/CD2) interactions are identified by a DeltaE(Si)-E(Scintillator/Photodiode) telescope by the conventional DeltaE-E method. The position of "jumps" in the amplitude of the photodiode signal for ions

  • 21.
    Badala, A
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Barbera, R
    Interfaculty Units, The Svedberg Laboratory.
    Bassi, M
    Department of Neutron Research.
    Bonasera, A
    Gulino, M
    Librizzi, F
    Mascali, A
    Palmeri, A
    Pappalardo, GS
    Riggi, F
    Russo, AC
    Russo, G
    Turrisi, R
    Dunin, V
    Ekström, Curt
    Ericsson, Göran
    Höistad, Bo
    Johansson, J
    Johansson, Tord
    Westerberg, Lars
    Subthreshold production of low momentum K+ in p+C at 1.2 GeV1998In: PHYSICAL REVIEW LETTERS, ISSN 0031-9007, Vol. 80, no 22, p. 4863-4866Article in journal (Refereed)
    Abstract [en]

    The double differential cross section of low momentum kaons (less than or equal to 0.3 GeV/c) from p + C collisions at subthreshold bombarding energies has been for the first time measured by the use of the CLAMSUD magnetic spectrometer installed at the C

  • 22.
    Bargholtz, C
    et al.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory.
    Bilger, R
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Blom, M
    Bogoslawsky, D
    Bondar, A
    Brodowski, W
    Calén, H
    Clement, H
    Demirörs, L
    Dunin, V
    Ekström, C
    Fransson, K
    Fridén, C-J
    Greiff, J
    Gustafsson, L
    Höistad, B
    Jacewicz, M
    Johanson, J
    Johansson, A
    Johansson, T
    Khouk,
    The CELSIUS/WASA 4pi Detector Facility2000In: ACTA PHYSICA POLONICA B, 2000, Vol. 31, p. 2249-Conference paper (Refereed)
  • 23.
    Bargholtz, C
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics.
    Blomquist, J
    Interfaculty Units, The Svedberg Laboratory.
    Fumero, E
    Martensson, L
    Einarsson, L
    Wappling, R
    Using a CdTe detector for Te-125 Mossbauer Spectroscopy: Application to the f-factor in Mg3TeO62000In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, ISSN 0168-583X, Vol. 170, no 1-2, p. 239-244Article in journal (Refereed)
    Abstract [en]

    An apparatus for Mossbauer spectroscopy has been developed with a cadmium telluride (CdTe) gamma-ray detector. Complete data regarding gamma-ray energy, source velocity, temperature and real time are stored for off-line analysis. The apparatus has been us

  • 24. Bargholtz, Chr.
    et al.
    Bashkanov, M.
    Berlowski, M.
    Bondar, A.
    Bogoslawsky, D.
    Brodowski, W.
    Brudvik, J.
    Calén, Hans
    Uppsala University, The Svedberg Laboratory.
    Capellaro, Filippo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Chilingarov, A.
    Clement, H.
    Comfort, J.
    Demiroers, L.
    Ekström, Curt
    Uppsala University, The Svedberg Laboratory.
    Fransson, Kjell
    Uppsala University, The Svedberg Laboratory.
    Fridén, Carl-Johan
    Uppsala University, The Svedberg Laboratory.
    Geren, L.
    Gornov, M.
    Grebenev, V.
    Greiff, J.
    Gurov, Y.
    Gustafsson, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Höistad, Bo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Ivanov, G.
    Jacewicz, Marek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Jiganov, E.
    Johansson, A.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Keleta, S.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Khakimova, O.
    Khoukaz, A.
    Kilian, K.
    Kimura, N.
    Koch, I.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kolachev, G.
    Kren, F.
    Kullander, Sven
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kuzmin, A.
    Kuznetsov, A.
    Lindberg, K.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Meier, R.
    Messner, O.
    Morosov, B.
    Nawrot, A.
    Nefkens, B. M. K.
    Norman, G.
    Uppsala University, The Svedberg Laboratory.
    Oelert, W.
    Pauly, C.
    Pettersson, H.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Pivovarov, A.
    Patzold, J.
    Petukhov, Y.
    Povtorejko, A.
    Reistad, Dag
    Uppsala University, The Svedberg Laboratory.
    Ruber, Roger J. M. Y.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Sandukovsky, S.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Scobel, W.
    Sefzick, T.
    Shafigullin, R.
    Shwartz, B.
    Sidorov, V.
    Skorodko, T.
    Sopov, V.
    Starostin, A.
    Stepaniak, J.
    Sukhanov, A.
    Sukhanov, A.
    Tchernyshev, V.
    Tegner, P-E
    Engblom, P. Thorngren
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Tikhomirov, V.
    Toki, H.
    Turowiecki, A.
    Wagner, G. J.
    Wiedner, Ulrich
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Wilhelmi, Z.
    Wolke, M.
    Yamamoto, A.
    Yamaoka, H.
    Zabierowski, J.
    Zartova, I.
    Zlomanczuk, Josef
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    The WASA detector facility at CELSIUS2008In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 594, no 3, p. 339-350Article in journal (Refereed)
    Abstract [en]

    The WASA 4 pi multidetector system, aimed at investigating light meson production in light ion collisions and eta meson rare decays at the CELSIUS storage ring in Uppsala is presented. A unique feature of the system is the use of hydrogen pellets as internal targets for the first time. A detailed description of the design, together with the anticipated and achieved performance parameters are given. (C) 2008 Elsevier B.V. All rights reserved.

  • 25. Bargholtz, Chr.
    et al.
    Bashkanov, M.
    Bogoslawsky, D.
    Calén, Hans
    Uppsala University, The Svedberg Laboratory.
    Cappellaro, F.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Clement, H.
    Demiroers, L.
    Ekström, Curt
    Uppsala University, The Svedberg Laboratory.
    Fransson, Kjell E.
    Uppsala University, The Svedberg Laboratory.
    Gerén, L.
    Gustafsson, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Höistad, Bo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Ivanov, G.
    Jacewicz, Marek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Jiganov, E.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Keleta, S. Negasi
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Koch, I.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kullander, Sven O.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kupsc, Andrzej
    Uppsala University, The Svedberg Laboratory.
    Kuznetsov, A.
    Laukhin, I. V.
    Lindberg, K.
    Marciniewski, Pawel
    Uppsala University, The Svedberg Laboratory.
    Meier, R.
    Morosov, B.
    Oelert, W.
    Pauly, C.
    Pettersson, Hanna I.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Petukhov, Y.
    Povtorejko, A.
    Ruber, Roger J. M. Y.
    Uppsala University, The Svedberg Laboratory.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Scobel, W.
    Shafigullin, R.
    Shwartz, B.
    Skorodko, T.
    Sopov, V.
    Stepaniak, J.
    Tchernyshev, V.
    Tegner, P. -E
    Thörngren-Engblom, P.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Tikhomirov, V.
    Turowiecki, A.
    Wagner, G. J.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Yamamoto, A.
    Zabierowski, J.
    Zartova, I.
    Zlomanczuk, Jozef
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Measurement of the eta -> pi(+)pi(-)e(+)e(-) decay branching ratio2007In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 644, no 5-6, p. 299-303Article in journal (Refereed)
    Abstract [en]

    The reaction pd -> He-3 eta at threshold was used to provide a clean source of eta mesons for decay studies with the WASA detector at CELSIUS. The branching ratio of the decay eta -> pi(+)pi(-)e(+)e(-) is measured to be (4.3 +/- 1.3 +/- 0.4) x 10(-4).

  • 26. Bashkanov, M.
    et al.
    Abdel-Samad, S.
    Brinkmann, K.
    Calen, Hans
    Uppsala University, Interfaculty Units, The Svedberg Laboratory.
    Capellaro, Filippo
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Clement, H.
    Demiroers, L.
    Doroshkevich, E.
    Dshemuchadse, S.
    Ekström, Curt
    Uppsala University, Interfaculty Units, The Svedberg Laboratory.
    Erhardt, A.
    Eyrich, W.
    Fransson, Kjell
    Uppsala University, Interfaculty Units, The Svedberg Laboratory.
    Freiesleben, H.
    Fritch, M.
    Gillitzer, G.
    Gustafsson, Leif
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Höistad, Bo
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Jacewicz, Marek
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Johansson, Tord
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Karsch, L.
    Keleta, Samson
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Kilian, K.
    Koch, Inken
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Kress, J.
    Kuhlmann, E.
    Kullander, Sven
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Kupsc, Andrzej
    Uppsala University, Interfaculty Units, The Svedberg Laboratory.
    Marcello, S.
    Marciniewski, Pawel
    Uppsala University, Interfaculty Units, The Svedberg Laboratory.
    Meier, R.
    Möller, K.
    Morozov, B.
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Morsch, H.P.
    Pauli, C.
    Pethukov, Y.
    Rodenburg, E.
    Schönmeier, P.
    Schroder, W.
    Schulte-Wissermann, M.
    Scobel, W.
    Sefzick, T.
    Skorodko, T.
    Stepaniak, J.
    Wagner, G.J.
    Wagner, M.
    Wiedner, Ulrich
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Wintz, P.
    Wuestner, P.
    Zabierowski, J.
    Zlomanczuk, Jozef
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Zupranski, P.
    Two-pion production in proton-proton collisions2004In: Hadron Spectroscopy, Tenth International Conference on Hadron Spectrscopy, Aschaffenburg, Germany 31 August - 6 September 2003, 2004, p. 241-244Conference paper (Other scientific)
  • 27. Bashkanov, M.
    et al.
    Bargholtz, C.
    Berlowski, M.
    Bogoslawsky, D.
    Calén, Hans
    Uppsala University, The Svedberg Laboratory.
    Clement, H.
    Demiroers, L.
    Doroshkevich, E.
    Duniec, David
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Ekström, Curt
    Uppsala University, The Svedberg Laboratory.
    Fransson, Kjell
    Uppsala University, The Svedberg Laboratory.
    Geren, L.
    Gustafsson, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Höistad, Bo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Ivanov, G.
    Jacewicz, Marek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Jiganov, E.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Khakimova, O.
    Keleta, Samson
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Koch, Inken
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Kren, F.
    Kullander, Sven
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Kupsc, Andrzej
    Uppsala University, The Svedberg Laboratory.
    Lindberg, K.
    Marciniewski, Pawel
    Uppsala University, The Svedberg Laboratory.
    Meier, R.
    Morosov, B.
    Pauly, C.
    Pettersson, Henrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Petukhov, Y.
    Povtorejko, A.
    Pricking, A.
    Ruber, Roger J. M. Y.
    Uppsala University, The Svedberg Laboratory.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Scobel, W.
    Shwartz, B.
    Skorodko, T.
    Sopov, V.
    Stepaniak, J.
    Tegner, P. -E
    Thörngren-Engblom, Pia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Tikhomirov, V.
    Turowiecki, A.
    Wagner, G. J.
    Wolke, M.
    Zabierowski, J.
    Zartova, I.
    Zlomanczuk, Jozef
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Double-Pionic Fusion of Nuclear Systems and the "ABC" Effect: Approaching a Puzzle by Exclusive and Kinematically Complete Measurements2009In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 102, no 5, p. 052301-Article in journal (Refereed)
    Abstract [en]

    The ABC effect-a puzzling low-mass enhancement in the pi pi invariant mass spectrum, first observed by Abashian, Booth, and Crowe-is well known from inclusive measurements of two-pion production in nuclear fusion reactions. Here we report on the first exclusive and kinematically complete measurements of the most basic double-pionic fusion reaction pn -> d pi(0)pi(0) at beam energies of 1.03 and 1.35 GeV. The measurements, which have been carried out at CELSIUS-WASA, reveal the ABC effect to be a (pi pi)(I=L=0) channel phenomenon associated with both a resonancelike energy dependence in the integral cross section and the formation of a Delta Delta system in the intermediate state. A corresponding simple s-channel resonance ansatz provides a surprisingly good description of the data.

  • 28. Bashkanov, M.
    et al.
    Bogoslawsky, D.
    Calén, Hans
    Uppsala University, The Svedberg Laboratory.
    Capellaro, Filippo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Clement, H.
    Demirörs, L.
    Ekström, Curt
    Uppsala University, The Svedberg Laboratory.
    Fransson, Kjell
    Uppsala University, The Svedberg Laboratory.
    Gustafsson, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Höistad, Bo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Ivanov, G.
    Jacewicz, Marek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Jiganov, E.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Keleta, Samson
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Koch, Inken
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear and Particle Physics.
    Kullander, Sven
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kupsc, Andrzej
    Uppsala University, The Svedberg Laboratory.
    Kuznetsov, A.
    Marciniewski, Pawel
    Uppsala University, The Svedberg Laboratory.
    Meier, R.
    Morosov, B.
    Oelert, W.
    Pauly, C.
    Petukhov, Y.
    Pettersson, Henrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Povtorejko, A.
    Ruber, Roger J. M. Y.
    Uppsala University, The Svedberg Laboratory.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Scobel, W.
    Skorodko, T.
    Shwartz, B.
    Sopov, V.
    Stepaniak, J.
    Tchernyshev, V.
    Thörngren Engblom, Pia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Tikhomirov, V.
    Turowiecki, A.
    Wagner, G.J.
    Wiedner, Ulrich
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Yamamoto, A.
    Zabierowski, J.
    Zlomanczuk, Jozef
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Measurement of the slope parameter for the η → 3π0 decay in the pp → ppη reaction2007In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 76, no 4, p. 048201-Article in journal (Refereed)
    Abstract [en]

    The CELSIUS-WASA setup is used to measure the 3π0 decay of η mesons produced in pp interactions with beam kinetic energies of 1.36 and 1.45 GeV. The efficiency-corrected Dalitz plot and density distributions for this decay are shown, together with a fit of the quadratic slope parameter α yielding α = −0.026 ± 0.010(stat) ± 0.010(syst). This value is compared to recent experimental results and theoretical predictions.

  • 29.
    Bashkanov, M.
    et al.
    Physikalisches Institut der Universität Tübingen, D-72076 Tübingen, Germany.
    Bogoslawsky, D.
    Joint Institute for Nuclear Research, Dubna, Russia.
    Calén, Hans
    Uppsala University, The Svedberg Laboratory.
    Cappellaro, F.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Clement, H.
    Physikalisches Institut der Universität Tübingen, D-72076 Tübingen, Germany.
    Demiroers, L.
    Hamburg University, Hamburg, Germany.
    Ekström, Curt
    Uppsala University, The Svedberg Laboratory.
    Fransson, Kjell
    Uppsala University, The Svedberg Laboratory.
    Greiff, J.
    Uppsala University, The Svedberg Laboratory.
    Gustafsson, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Höistad, Bo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Ivanov, G.
    Joint Institute for Nuclear Research, Dubna, Russia.
    Jacewicz, Marek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Jiganov, E.
    Joint Institute for Nuclear Research, Dubna, Russia.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Khakimova, O.
    Physikalisches Institut der Universität Tübingen, D-72076 Tübingen, Germany.
    Kaskulov, M. M.
    Physikalisches Institut der Universität Tübingen, D-72076 Tübingen, Germany.
    Keleta, Samson
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Koch, I.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Kren, F.
    Physikalisches Institut der Universität Tübingen, D-72076 Tübingen, Germany.
    Kullander, Sven
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, The Svedberg Laboratory.
    Kuznetsov, A.
    Joint Institute for Nuclear Research, Dubna, Russia.
    Marciniewski, Pawel
    Uppsala University, The Svedberg Laboratory.
    Meier, R.
    Physikalisches Institut der Universität Tübingen, D-72076 Tübingen, Germany.
    Morosov, B.
    Joint Institute for Nuclear Research, Dubna, Russia.
    Oelert, W.
    Forschungszentrum Jülich, Germany.
    Pauly, C.
    Hamburg University, Hamburg, Germany.
    Petukho, Y.
    Joint Institute for Nuclear Research, Dubna, Russia.
    Povtorejko, A.
    Joint Institute for Nuclear Research, Dubna, Russia.
    Ruber, Roger
    Uppsala University, The Svedberg Laboratory.
    Scobel, W.
    Hamburg University, Hamburg, Germany.
    Skorodko, T.
    Physikalisches Institut der Universität Tübingen, D-72076 Tübingen, Germany.
    Shwartz, B.
    Budker Institute of Nuclear Physics, Novosibirsk, Russia.
    Sopov, V.
    Institute of Theoretical and Experimental Physics, Moscow, Russia.
    Stepaniak, J.
    Soltan Institute of Nuclear Studies, Warsaw and Lodz, Poland.
    Tchernyshev, V.
    Institute of Theoretical and Experimental Physics, Moscow, Russia.
    Thorngren-Engblom, Pia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Tikhomirov, V.
    Joint Institute for Nuclear Research, Dubna, Russia.
    Turowiecki, A.
    Institute of Experimental Physics, Warsaw, Poland.
    Wagner, G. J.
    Physikalisches Institut der Universität Tübingen, D-72076 Tübingen, Germany.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Yamamoto, A.
    High Energy Accelerator Research Organization, Tsukuba, Japan.
    Zabierowski, J.
    Soltan Institute of Nuclear Studies, Warsaw and Lodz, Poland.
    Zlomanczuk, Jozef
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Exclusive measurements of pd -> He-3 pi pi: The ABC effect revisited2006In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 637, no 4-5, p. 223-228Article in journal (Refereed)
    Abstract [en]

    Exclusive measurements of the reactions pd -> He-3 pi(+)7 pi(-) and pd -> He-3 pi(0)pi(0) have been carried out at T-p = 0.893 GeV at the CELSIUS storage ring using the WASA detector. The pi(+)pi(-) channel evidences a pronounced enhancement at low invariant pi pi masses-as anticipated from previous inclusive measurements of the ABC effect. This enhancement is seen to be even much larger in the isoscalar pi(0)pi(0) channel. The differential distributions prove this enhancement to be of scalar-isoscalar nature. Delta Delta calculations give a good description of the data, if a boundstate condition is imposed for the intermediate Delta Delta system.

  • 30.
    Bashkanov, M.
    et al.
    Physikalisches Institut, Universität Tübingen.
    Calèn, Hans
    Uppsala University, The Svedberg Laboratory.
    Cappellaro, F.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Ekström, Curt
    Uppsala University, The Svedberg Laboratory.
    Fransson, Kjell
    Uppsala University, The Svedberg Laboratory.
    Gustafsson, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Höistad, Bo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Jacewicz, Marek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Keleta, Samson
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Koch, I.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kullander, Sven
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kupść, Andrzej
    Uppsala University, The Svedberg Laboratory.
    Marciniewski, Pawel
    Uppsala University, The Svedberg Laboratory.
    Ruber, Roger
    Uppsala University, The Svedberg Laboratory.
    Thörngren-Engblom, Pia
    Uppsala University, The Svedberg Laboratory.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Zlomanczuk, Jozef
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Low-mass pi pi enhancement in baryonic pi pi production: ABC effect revised by exclusive measurements2007In: International Journal of Modern Physics A, ISSN 0217-751X, E-ISSN 1793-656X, Vol. 22, no 2-3, p. 625-628Article in journal (Refereed)
    Abstract [en]

    The ABC effect - a puzzling threshold enhancement in the ππ invariant mass spectrum of double-pionic fusion to nuclear bound states - has been investigated since 40 years by inclusive measurements without providing a conclusive interpretation. First exclusive measurements to this topic have now been carried out at CELSIUS-WASA. They confirm a huge ππ threshold enhancement, prove it to be of scalar-isoscalar nature, i.e., a σ-channel phenomenon and reveal the theoretically predicted high-mass enhancement in inclusive spectra to be of πππ rather than of ππ nature - falsifying thus corresponding model predictions for the ABC effect. From the kinematically complete data samples we infer that the interaction between the two Δ particles created in this process is of crucial importance.

  • 31.
    Bashkanov, M.
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Clement, H.
    Interfaculty Units, The Svedberg Laboratory.
    Doroshevich, E.
    Erhardt, A.
    Kress, J.
    Meier, R.
    Skorodko, T.
    and, Wagner G. J.
    for, the CELSIUS/WASA and COSY/TOF Collaborations
    Two-Pion Production in Proton-Proton Collisions – a Case for Resonance Studies2003In: Proc. Few-Body Conference, Duke, USA, 2003., 2003Conference paper (Other scientific)
  • 32.
    Bashkanov, M.
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    for the CELSIUS/WASA and COSY/TOF Collaborations, Abdel-Samad, S.
    Interfaculty Units, The Svedberg Laboratory.
    Brinkmann, K.-Th.
    Calén, Hans
    Cappellaro, Filippo
    Clement, Heinz
    Demiroers, Levent
    Doroshkevich, E.
    Dshemuchadse, S.
    Ekström, Curt
    Erhardt, A
    Eyrich, W.
    Fransson,
    Two-Pion Production in Proton-Proton Collisions2003In: Proc. Xth Int. Conf. on Hadron Spectroscopy, HADRON’03, Aschaffenburg, Germany, 2003., 2003Conference paper (Other scientific)
  • 33.
    Bengtsson, M
    et al.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory.
    Lofnes, T
    Ziemann, V
    A DSP controlled data acquisition system for CELSIUS2000In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, ISSN 0168-9002, Vol. 441, no 1-2, p. 76-80Article in journal (Refereed)
    Abstract [en]

    We describe a data acquisition system based on two 10 MHz A/D-converters, a SHARC Digital Signal Processor (DSP), and a digital synthesizer used for triggering the A/D-converters. The temporal macrostructure of the data acquisition can be determined by ex

  • 34.
    Bergenwall, B
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research.
    Dangtip, S
    Interfaculty Units, The Svedberg Laboratory.
    Ataç, A
    Department of Nuclear and Particle Physics.
    Blomgren, J
    Elmgren, K
    Johansson, C
    Klug, J
    Olsson, N
    Pomp, S
    Tippawan, U
    Jonsson, O
    Nilsson, L
    Renberg, P.-U
    Nadel-Turonski, P
    Söderberg, J
    Alm Carlsson, G
    Le Brun, C
    Lecolley, J.-F
    Lecolley, F.-R
    Louvel,
    Cross section data and kerma coefficients at 95 MeV neutrons for medical applications2002In: Journal of Nuclear Science and Technology, Supplement 2, 2002, p. 1298-Conference paper (Refereed)
  • 35.
    Bergmark, T
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Marciniewski, P
    Interfaculty Units, The Svedberg Laboratory.
    Zlomanczuk, J
    The H-0 beam profile monitor at CELSIUS2000In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, ISSN 0168-9002, Vol. 441, no 1-2, p. 70-75Article in journal (Refereed)
    Abstract [en]

    A beam profile monitor has been constructed for the observation of the H-0 beam emitted from the electron cooler at CELSIUS. The monitor uses a silicon strip detector for position sensitive observation of stripped H-0's. A description is given of the dete

  • 36.
    Bergmark, Torsten
    et al.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory.
    Bengtsson, Magnus
    Lofsnes, Tor
    Ziemann, Volker
    A Fast Beam Position Measurement System for CELSIUS2000In: Proc. 7th European Particle Accelerator Conference (EPAC 2000), Vienna, Austria, 2000Conference paper (Other scientific)
  • 37. Berlowski, M.
    et al.
    Bargholtz, Chr.
    Bashkanov, M.
    Bogoslawsky, D.
    Bondar, A.
    Calén, Hans
    Uppsala University, The Svedberg Laboratory.
    Cappellaro, Filippo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Clement, H.
    Demiroers, L.
    Ekström, Curt
    Uppsala University, The Svedberg Laboratory.
    Fransson, Kjell
    Uppsala University, The Svedberg Laboratory.
    Geren, L.
    Gustafsson, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Höistad, Bo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Ivanov, G.
    Jacewicz, Marek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Jiganov, E.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Keleta, Samson
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Koch, Inken
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Kullander, Sven
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Kupsc, Andrzej
    Uppsala University, The Svedberg Laboratory.
    Kuzmin, A.
    Kuznetsov, A.
    Laukhin, I. V.
    Lindberg, K.
    Marciniewski, Pawel
    Uppsala University, The Svedberg Laboratory.
    Meier, R.
    Morosov, B.
    Oelert, W.
    Pauly, C.
    Pettersson, Henrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Petukhov, Y.
    Povtorejko, A.
    Ruber, Roger J. M. Y.
    Uppsala University, The Svedberg Laboratory.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Scobel, W.
    Shafigullin, R.
    Shwartz, B.
    Skorodko, T.
    Sopov, V.
    Stepaniak, J.
    Tegner, P. -E.
    Thörngren Engblom, Pia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Tikhomirov, V.
    Turowiecki, A.
    Wagner, G. J.
    Wolke, M.
    Yamamoto, A.
    Zabierowski, J.
    Zartova, I.
    Zlomanczuk, Jozef
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Measurement of eta meson decays into lepton-antilepton pairs2008In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Physical Review D, ISSN 1550-7998, Vol. 77, no 3, p. 032004-Article in journal (Refereed)
    Abstract [en]

    A search for rare lepton decays of the eta meson was performed using the WASA detector at CELSIUS. Two candidates for double Dalitz decay eta -> e(+)e(-)e(+)e(-) events are reported with a background of 1.3 +/- 0.2 events. This allows to set an upper limit to the branching ratio of 9.7x10(-5) (90% CL). The branching ratio for the decay eta -> e(+)e(-)gamma is determined to (7.8 +/- 0.5(stat)+/- 0.8(syst))x10(-3) in agreement with world average value. An upper limit (90% CL) for the branching ratio for the eta -> e(+)e(-) decay is 2.7x10(-5) and a limit for the sum of the eta ->mu(+)mu(-)mu(+)mu(-) and eta ->pi(+)pi(-)mu(+)mu(-) decays is 3.6x10(-4).

  • 38.
    Betsch, A
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Bilger, R
    Interfaculty Units, The Svedberg Laboratory.
    Brodowski, W
    Calén, H
    Clement, H
    Dyring, J
    Ekström, C
    Fransson, K
    Gustafsson, L
    Häggström, S
    Höistad, B
    Johanson, J
    Johansson, A
    Johansson, Tord
    Kilian, K
    Kullander, S
    Kupsc, A
    Kurz, G
    Marciniewski, P
    Morosov, B
    Mör,
    Observation of strong final-state effects in pi(+) production in pp collisions at 400 MeV1999In: PHYSICS LETTERS B, ISSN 0370-2693, Vol. 446, no 2, p. 179-184Article in journal (Refereed)
    Abstract [en]

    Differential cross sections of the reactions pp --> d pi(+) and pp --> pn pi(+) have been measured at T-p = 400 MeV by detecting the charged ejectiles in the angular range 4 degrees less than or equal to Theta(Lab) less than or equal to 21 degrees. The de

  • 39.
    Bevilacqua, Riccardo
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hayashi, Masataru
    Hirayama, Shusuke
    Naitou, Yuuki
    Watanabe, Yukinobu
    Tippawan, Udomrat
    Simutkin, Vasily
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Andersson, Pernilla
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
    Blomgren, Jan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tesinsky, Milan
    Lecolley, Francoise-Rene
    Marie, Nathalie
    Hjalmarsson, Anders
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Kolozhvari, Anatoly
    Study of pre-equilibrium emission of light complex particles from Fe and Bi induced by intermediate energy neutrons2011In: International Nuclear Physics Conference 2010: Nuclear Reactions, 2011, p. 082013-Conference paper (Refereed)
    Abstract [en]

    We have measured double differential cross sections (DDX) for emission of hydrogen- and helium-isotopes in the interaction of 175 MeV quasi-monoenergetic neutrons with Fe and Bi using the Medley setup at the The Svedberg Laboratory (Uppsala, Sweden). We compared experimental DDX with calculations with the TALYS code, which includes exciton model and Kalbach systematics; the code fails to reproduce the emission of complex light-ions, generally overestimating it. We propose an correction for the application of the Kalbach phenomenological model in the TALYS code by introducing a new energy dependence for the nucleon transfer mechanism in the pre-equilibrium emission region. Our results suggest also evidence for multiple pre-equilibrium emission of composite particles at 175 MeV.

     

  • 40.
    Bevilacqua, Riccardo
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Jansson, Kaj
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Osterlund, M.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Simutkin, V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hayashi, M.
    Hirayama, S.
    Naitou, Y.
    Watanabe, Y.
    Hjalmarsson, A.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, A.
    Uppsala University, The Svedberg Laboratory.
    Tippawan, U.
    Lecolley, F.-R.
    Marie, N
    Leray, S
    David, J.-C.
    Mashnik, S
    Light-ion production from O, Si, Fe and Bi induced by 175 MeV quasi-monoenergetic neutron2014Conference paper (Refereed)
  • 41.
    Bevilacqua, Riccardo
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Jansson, Kaj
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gustavsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Simutkin, V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hayashi, M.
    Hirayama, S.
    Naitou, Y.
    Watanabe, Y.
    Hjalmarsson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Uppsala University, The Svedberg Laboratory.
    Tippawan, U.
    Lecolley, F. -R
    Marie, N.
    Leray, S.
    David, J. -C
    Mashnik, S.
    Light-ion Production from O, Si, Fe and Bi Induced by 175 MeV Quasi-monoenergetic Neutrons2014In: Nuclear Data Sheets, ISSN 0090-3752, E-ISSN 1095-9904, Vol. 119, p. 190-193Article in journal (Refereed)
    Abstract [en]

    We have measured double-differential cross sections in the interaction of 175 MeV quasimonoenergetic neutrons with O, Si, Fe and Bi. We have compared these results with model calculations with INCL4.5-Abla07, MCNP6 and TALYS-1.2. We have also compared our data with PHITS calculations, where the pre-equilibrium stage of the reaction was accounted respectively using the JENDL/HE-2007 evaluated data library, the quantum molecular dynamics model (QMD) and a modified version of QMD (MQMD) to include a surface coalescence model. The most crucial aspect is the formation and emission of composite particles in the pre-equilibrium stage.

  • 42.
    Bevilacqua, Riccardo
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Simutkin, Vasily D.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tippawan, U.
    Andersson, Pernilla
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Blomgren, Jan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hayashi, M.
    Hirayama, S.
    Naito, Y.
    Watanabe, Y.
    Tesinsky, M.
    LeColley, F. -R
    Marie, N.
    Hjalmarsson, Anders
    Uppsala University, The Svedberg Laboratory.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Kolozhvari, A.
    Neutron induced light-ion production from iron and bismuth at 175 MeV2010In: Radiation Measurements, ISSN 1350-4487, E-ISSN 1879-0925, Vol. 45, no 10, p. 1145-1150Article in journal (Refereed)
    Abstract [en]

    We have measured light-ion (p, d, t, He-3 and alpha) production in the interaction of 175 MeV neutrons with iron and bismuth with low-energy thresholds and for a wide angular range (from 20 degrees to 160 degrees, in steps of 20 degrees). Measurements have been performed with the Medley setup, semi-permanently installed at the The Svedberg Laboratory, Uppsala (Sweden), where a quasi-monoenergetic neutron beam is available and well characterized. Medley is a conventional spectrometer system and consists of eight telescopes, each of them composed of two silicon surface barrier detectors, to perform particle identification, and a CsI(Tl) scintillator to fully measure the kinetic energy of the produced light-ions. We report preliminary double-differential cross sections for production of protons, deuterons and tritons in comparison with model calculations using TALYS-1.0 code. These show better agreement for the production of protons, while the theoretical calculations seem to overestimate the experimental production of deuterons and tritons.

  • 43.
    Bevilacqua, Riccardo
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Pomp, Stephan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Simutkin, Vasily D.
    Tippawan, U.
    Hayashi, M.
    Hirayama, S.
    Naitou, Y.
    Watanabe, Y.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Hjalmarsson, Anders
    Uppsala University, The Svedberg Laboratory.
    Andersson, P.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Blomgren, Jan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Österlund, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Tesinsky, M.
    Lecolley, F. -R
    Marie, N.
    Kolozhvari, A.
    Light-Ion Production in the Interaction of 175 MeV Neutrons with Iron and Bismuth2011In: Journal of the Korean Physical Society, ISSN 0374-4884, E-ISSN 1976-8524, Vol. 59, no 2, p. 1701-1704Article in journal (Refereed)
    Abstract [en]

    We have measured double-differential (angle and energy) cross sections for light-ion (p, d, t, (3)He, and a) production in the interaction of quasi-monoenergetic 175 MeV neutrons with iron and bismuth. Measurements have been performed at the The Svedberg Laboratory, Uppsala (Sweden), using the Medley setup which allows low-energy thresholds and wide energy and angular ranges. Medley is a spectrometer system consisting of eight three-element telescopes placed at angles from 20 degrees to 160 degrees, in steps of 20 degrees. Each telescope is composed of two silicon surface barrier detectors and a CsI(Tl) scintillator, to perform particle identification, fully stop the produced light-ions and measure their kinetic energy. The time-of-flight was used to reduce the contribution from the low energy tail in the accepted incident neutron spectrum. We report double-differential production cross sections for protons, deuterons, tritons, (3)He and alpha particles and compare them with model calculations with TALYS-1.2.

  • 44. Bevilacqua, Riccardo
    et al.
    Pomp, Stephan
    Simutkin, Vasily
    Tippawan, Udomrat
    Andersson, Pernilla
    Blomgren, Jan
    Osterlund, Michael
    Hayashi, Masateru
    Hirayama, Shusuke
    Naito, Yuuki
    Watanabe, Yukinobu
    Tesinsky, Milan
    LeColley, Francois-Rene
    Marie, Nathalie
    Hjalmarsson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Prokofiev, Alexander V.
    Uppsala University, The Svedberg Laboratory.
    Kolozhvari, Anatoly
    Neutron induced light-ion production from Iron and Bismuth at 175 MeV2010In: CNR '09: SECOND INTERNATIONAL WORKSHOP ON COMPOUND NUCLEAR REACTIONS AND RELATED TOPICS, 2010, article id 05005Conference paper (Refereed)
    Abstract [en]

    We have measured light-ion (p, d, t, He-3 and alpha) production in the interaction of 175 MeV neutrons with iron and bismuth, using the MEDLEY setup. A large set of measurements at 96 MeV has been recently completed and published, and now higher energy region is under investigation. MEDLEY is a conventional spectrometer system that allows low-energy thresholds and offers measurements over a wide angular range. The system consists of eight telescopes, each of them composed of two silicon surface barrier detectors, to perform particle identification, and a Csl(Tl) scintillator to fully measure the kinetic energy of the produced light-ions. The telescopes are placed at angles from 20 degrees to 160 degrees, in steps of 20 degrees. Measurements have been performed at The Svedberg Laboratory, Uppsala (Sweden), where a quasi mono-energetic neutron beam is available and well characterized. Time of flight techniques are used to select light-ion events induced by neutrons in the main peak of the source neutron spectrum. We report preliminary double differential cross sections for production of protons, deuterons and tritons in comparison with model calculations using TALYS-1.0 code.

  • 45.
    Bilger, R
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    ,, Blom, M
    Interfaculty Units, The Svedberg Laboratory.
    .... Calén, H
    ... Dyring, J
    ... Ekström, C
    Fransson, K
    Greiff, J
    Gustafsson, L
    ..et.al,
    THE WASA DETECTOR AT CELSIUS.2000In: Nuclear Physics A, Elsevier Science B.V. Holland , 2000, Vol. 663, p. 1073-1076Conference paper (Refereed)
  • 46.
    Bilger, R
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Blom, M
    Interfaculty Units, The Svedberg Laboratory.
    Bogoslawsky, D
    Bondar, A
    Brodowski, W
    Calén, H
    Chernyshev, B
    Chuvilo, I
    Clement, H
    Dahlgren, S
    Dunin, V
    Ekström, C
    Fridén, CJ
    Fransson, K
    Gornov, M
    Gurov, Y
    Gustafsson, L
    Hirabayashi, H
    Häggström, S
    Höistad, B
    Ikegami,
    CELSIUS as an eta factory1997In: NUCLEAR PHYSICS A, ISSN 0375-9474, Vol. 626, no 1-2, p. 93C-96CArticle in journal (Refereed)
    Abstract [en]

    The WASA project at the CELSIUS storage ring is being prepared for high-luminosity experiments to study rare decays of light mesons, in particular the eta meson. The CELSIUS ring together with the newly developed pellet target will serve as an efficient e

  • 47.
    Bilger, R
    et al.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory.
    Blom, M
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Bogoslawsky, D
    Bondar, A
    Brodowski, W
    Calén, H
    Chuvilo, I
    Clement, H
    Dunin, V
    Dyring, J
    Ekström, C
    Fransson, K
    Fridén, C-J
    Greiff, J
    Gustafsson, L
    Häggström, S
    Höistad, B
    Jacewicz, M
    Johansson, J
    Johansson, A
    Johansso,
    New Prospects for Meson Production and Decays2000In: Proc. Int. Conf. on Quark Nuclear Physics, Adelaide, Australia, 2000Conference paper (Other scientific)
  • 48.
    Bilger, R
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Bondar, A
    Interfaculty Units, The Svedberg Laboratory.
    Brodowski, W
    Calén, H
    Clement, H
    Dyring, J
    Ekström, C
    Fransson, K
    Gustafsson, L
    Häggström, S
    Höistad, B
    Johanson, J
    Johansson, A
    Johansson, Tord
    Kilian, K
    Kullander, S
    Kupsc, A
    Kuzmin, A
    Marciniewski, P
    Morosov, B
    M,
    Threshold eta production in pN reactions at Celsius1998In: ACTA PHYSICA POLONICA B, ACTA PHYSICA POLONICA B, JAGELLONIAN UNIV, INST PHYSICS , 1998, Vol. 29, no 11, p. 2981-2985Conference paper (Refereed)
    Abstract [en]

    The quasi-free p+n-->d+eta reaction cross section has been measured at threshold using 1295 MeV protons in the CELSIUS storage ring and an internal cluster-jet deuterium target [1]. Excess energies from threshold to 10 MeV in the center of mass of the fin

  • 49.
    Bilger, R
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Brodowski, W
    Interfaculty Units, The Svedberg Laboratory.
    Calen, H
    Clement, H
    Dunin, V
    Dyring, J
    Ekstrom, C
    Fransson, K
    Greiff, J
    Gustafsson, L
    Haggstrom, S
    Hoistad, B
    Johanson, J
    Johansson, A
    Johansson, Tord
    Khoukaz, A
    Kilian, K
    Koch, I
    Kullander, S
    Kupsc, A
    Marciniewski, P
    Morosov, B
    Neu,
    Spectator tagging in quasi-free pn-reactions on deuterium at PROMICE/WASA, CELSIUS2000In: Nuclear Physics A, Elsevier Science B.V. Holland , 2000, Vol. A 663-664, p. 1053c-1056cConference paper (Refereed)
    Abstract [en]

    A set of silicon detectors has been added to the PROMICE/WASA (P/W) experiment at CELSIUS. These detectors have been used for spectator-proton tagging in proton deuteron collisions to investigate proton-neutron reactions at intermediate energies. The perf

  • 50.
    Bilger, R
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Brodowski, W
    Interfaculty Units, The Svedberg Laboratory.
    Calen, H
    Clement, H
    Dunin, V
    Dyring, J
    Ekstrom, C
    Fransson, K
    Greiff, J
    Gustafsson, L
    Hoistad, B
    Johanson, J
    Johansson, A
    Johansson, T
    Kilian, K
    Koch, I
    Kullander, S
    Kupsc, A
    Marciniewski, P
    Morosov, B
    Neubauer, T
    Oelert, W
    Ruber, RJ
    Spectator tagging in quasi-free proton-neutron interactions in deuterium using an internal cluster-jet target at a storage ring2001In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, ISSN 0168-9002, Vol. 457, no 1-2, p. 64-74Article in journal (Refereed)
    Abstract [en]

    Low-energy spectator protons (p(s)) from quasi-free proton-neutron interactions on deuterium have been measured for the pd --> d pi (0)p(s) and pd --> pn pi (0)p(s) reactions at the CELSIUS storage ring of the The Svedberg Laboratory. The experiment used

1234567 1 - 50 of 427
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