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  • 1.
    Aleklett, Kjell
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Campbell, Colin
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    The Peak and Decline of World Oil and Gas Production2003In: Minerals & Energy, ISSN 1404-1049, Vol. 18, p. 5-20Article in journal (Other (popular scientific, debate etc.))
  • 2.
    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.

  • 3. Berg, M
    et al.
    Carlen, L
    Elmer, R
    Jakobsson, B
    Noren, B
    Oskarsson, A
    Ericsson, G
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research. Department of Physics and Astronomy, Nuclear Physics.
    Julien, J
    Nybo, K
    Thorsteinsen, TF
    Bellini, V
    Guttormsen, M
    Lovhoiden, G
    A compact range telescope for K+ measurements1996In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, ISSN 0168-9002, Vol. 381, no 2-3, p. 267-274Article in journal (Refereed)
    Abstract [en]

    We present range telescopes for measurements of low energy K+ mesons together with first in-beam results. The hardware trigger, based on the observation of the mu(+) from the K+ --> mu(-) + nu(mu) decay channel, is designed for subthreshold hadron-nucleus

  • 4.
    Calen, Hans
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Gustafsson, Leif
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Hoistad, Bo
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Jacewicz, Marek
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Keleta, Samson
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kullander, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Petterson, Henrik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Schonning, Karin
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Thorngren, Pia
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Zlomanczuk, Jozef
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Evidence for a 'Narrow' Roper Resonance - The Breathing Mode of the Nucleon2006Report (Other scientific)
  • 5.
    Calen, Hans
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Gustafsson, Leif
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Hoistad, Bo
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Jacewicz, Marek
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Keleta, Samson
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kullander, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Petterson, Henrik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Schonning, Karin
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Thorngren, Pia
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Zlomanczuk, Jozef
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Measurement of the eta->pi+ pi- e+ e- decay branching ration2006Report (Other scientific)
  • 6.
    Calen, Hans
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Gustafsson, Leif
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Hoistad, Bo
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Jacewicz, Marek
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Keleta, Samson
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kullander, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Petterson, Henrik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Schonning, Karin
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Thorngren, Pia
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Zlomanczuk, Jozef
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Two-Pion Production in Nucleon-Nucleon Collisions and the ABC Effect - Approaching a Puzzle by Exclusive and Kinematically Complete Measurements2006Report (Other (popular scientific, debate etc.))
  • 7.
    Calén, H.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    CELSIUS experiments2005In: Proc. 6th Int. Conf on Nuclear Physics at Storage Rings, 2005, p. 89-Conference paper (Other scientific)
  • 8.
    Cappellaro, F.
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Gustafsson, Leif
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Hoistad, Bo
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Jacewicz, Marek
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Keleta, Samson
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Kullander, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Thorngren Engblom, Pia
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Wiedner, Ulrich
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Wolke, Magnus
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Zlomanczuk, Jozef
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Calen, Hans
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Ekstrom, Curt
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Ruber, Roger
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    TWO-PION PRODUCTION, GAMMA GAMMA LINE AND ASPECTS OF SIGMA MESON, BOSE-EINSTEIN CORRELATIONS AND ISOSPIN BREAKING.2005In: 10th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2004), Beijing, China, 29 Aug - 4 Sep 2004., 2005, p. 6-Conference paper (Refereed)
  • 9.
    Cappellaro, F.
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Gustafsson, Leif
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Hoistad, Bo
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Jacewicz, Marek
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Keleta, Samson
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Kullander, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Thorngren Engblom, Pia
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Wiedner, Ulrich
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Wolke, Magnus
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Zlomanczuk, Jozef
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. kärnfysik.
    Calen, Hans
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Ekstrom, Curt
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Ruber, Roger
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    EXCLUSIVE MEASUREMENTS OF PD ---> HE-3 PI PI: THE ABC EFFECT REVISITED2005Other (Other scientific)
  • 10. Carlén, L.
    et al.
    Avdeichikov, V.
    Golubev, P.
    Jakobsson, B.
    Ekström, C.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Fridén, C.-J.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kolozhvari, A.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Westerberg, L.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Sivek, A.
    Aleklett, K.
    Department of Nuclear and Particle Physics. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Persson, H.
    Department of Nuclear and Particle Physics. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Rouki, C.
    Department of Nuclear and Particle Physics. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Botvina, A.S.
    Bondorf, J.P.
    Pshenichkov, I.A.
    Mishustin, I.N.
    Dynamical and Statistical Fragment Emission Properties in 200 MeV/nucleon Ne-20 + Ar-40 Collisions2006In: Nuclear Physics, Vol. A764, p. 15-Article in journal (Refereed)
  • 11.
    Fokin, A
    et al.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Carlén, L
    Ghetti, R
    Jakobsson, B
    Mårtensson, J
    Murin, Y
    Oskarsson, A
    Ekström, Curt
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ericsson, Göran
    Department of Neutron Research. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Romanski, Jan
    van Veldhuizen, Elbert Jan
    Westerberg, Lars
    Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Nybo, K
    Thorsteinsen, TF
    Amirelmi, S
    Guttormsen, M
    Lövhöiden, G
    Bellini,
    d/p and t/p ratios in nucleon-nucleus and heavy ion reactions: Can entropy be determined? art. no. 0246011999In: PHYSICAL REVIEW C-NUCLEAR PHYSICS, ISSN 0556-2813, Vol. 6002, no 2, p. 4601-+Article in journal (Other scientific)
    Abstract [en]

    The relative yields of high energy deuterons and tritons as compared to protons have been measured in p+Kr, O-16+Kr and Ne-20+Ar reactions with a continuously varying beam energy up to 500A (400A) MeV. Statistical (expanding) evaporation models are not ab

  • 12.
    Fäldt, Göran
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Wilkin, Colin
    Department of Physics and Astronomy, Nuclear Physics.
    Near-threshold production of eta and eta-prime mesons in pp and pd collisions2002In: Physica Scripta, Vol. T99, p. 146-158Article in journal (Refereed)
  • 13.
    Fäldt, Göran
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Shabalin, Evgeny
    CP violation in the charged pion energy spectra of the decays K+/-->pi0pi0pi+/-2006In: Physics letters, Vol. B635, p. 295-298Article in journal (Refereed)
    Abstract [en]

    CP violation leads to a difference in the parameters g+ and g- that characterise the energy distributionsof the "odd" pion in the decays K+/-->pi0pi0pi+/- and K+/-->pi+/-pi+/-pi-/+. This difference is calculated.

  • 14.
    Fäldt, Göran
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Shabalin, Evgeny
    The rare decay eta=>pi+pi-nunu-bar2003In: Physica Scripta, Vol. 68, p. 348-351Article in journal (Refereed)
  • 15.
    Fäldt, Göran
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Tengblad, Ulla
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Wilkin, Colin
    Departmen t of Physics & Astronom y, UCL, London WC1E 6BT, UK.
    Two-pion production in deuteron-deuteron collisions at low energies2006In: European Physical Journal A, ISSN 1434-6001, E-ISSN 1434-601X, Vol. 28, no 2, p. 245-249Article in journal (Refereed)
    Abstract [en]

    The cross section for the dd->4Hepipi reaction is estimated near threshold in a two-step model where a pion created in the first step produces a second pion in a subsequent interaction.

  • 16.
    Hedlund, E.
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Westerberg, L.
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    A Comparison of Published Outgassing data for Vacuum Materials, Outgassing Properties of Materials2005In: 2nd Int. Symp. on Hydrogen in Matter and OPM-2 Workshop, Uppsala, Sweden, 2005Conference paper (Other (popular scientific, debate etc.))
  • 17.
    Hedlund, E.
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Westerberg, L.
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Ultra-High Vacuum developments for Nuclear-Reaction Experiments and Accelerators2005In: Nordic Meeting on Intermediate and High Energy Nuclear Physics, Gräftåvallen, Sweden, 2005Conference paper (Other (popular scientific, debate etc.))
  • 18.
    Hedlund, E.
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Westerberg, L.
    Interfaculty Units, The Svedberg Laboratory. Department of Physics and Astronomy, Nuclear Physics.
    Arrhén, F.
    König, V.
    Pendrill, L.R.
    Outgassing Measurements of UHV Vacuum System materials2005In: 12th Int. Metrology Conf., Lyon, France, 2005Conference paper (Other scientific)
  • 19.
    Håkansson, A
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Neutron Research. Department of Physics and Astronomy, Nuclear Physics.
    Bäcklin, A
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Neutron Research. Department of Physics and Astronomy, Nuclear Physics.
    Jacobsson Svärd, S
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Neutron Research. Department of Physics and Astronomy, Nuclear Physics.
    Jansson, P
    Hildingsson, L
    Strålningsmönster avslöjar manipulerat bränsle1998In: Nucleus, ISSN 1104-4578, no 3Article in journal (Other (popular scientific, debate etc.))
  • 20.
    Håkansson, A
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Neutron Research. Department of Physics and Astronomy, Nuclear Physics.
    Jacobsson Svärd, S
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Neutron Research. Department of Physics and Astronomy, Nuclear Physics.
    Bäcklin, A
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Neutron Research. Department of Physics and Astronomy, Nuclear Physics.
    Vad gammastrålning kan berätta om kärnbränsle2003In: KOSMOS , Årsbok för Svenska FysikersamfundetArticle in journal (Other (popular scientific, debate etc.))
  • 21.
    Håkansson, Ane
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Kärnfysik.
    Andersson, Camilla
    Bäcklin, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Kärnfysik.
    Jacobsson, Staffan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Kärnfysik.
    Jansson, Peter
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Kärnfysik.
    Tomography as a means for Experimental Verification of the Integrity of Irradiated Nuclear Fuel1997Conference paper (Refereed)
  • 22.
    Höistad, Bo
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Zlomanczuk, Jozef
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    International Workshop on eta-Nucleus Physics: Summary and Working Group Progress Report2006Report (Other scientific)
  • 23. Isakov, V.I.
    et al.
    Erokhina, K.I.
    Mach, Henryk
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Fogelberg, Birger
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Korgul, A.
    Mezilev, K.A.
    Ramström, Elisabet
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics.
    Isomeric and two-quasiparticle states in the neutron-excess odd-odd nucleus 134Sb2007In: Physics of Atomic Nuclei, ISSN 1063-7788, E-ISSN 1562-692X, Vol. 70, no 5, p. 818-826Article in journal (Refereed)
    Abstract [en]

    Detailed theoretical calculations of the properties of the neutron-excess odd–odd nucleus134    Sb are performed by using different theoretical approaches. A comprehensive comparison with the recentexperimental data is performed; this comparison suggests the presence of isomeric states among the low-lying levels of this nucleus. These states are the twins of the corresponding levels of the odd–odd nucleus210    Bi that is situated near the stability line. The obtained results manifest the similarity of nuclear structurein the region of the “remote” doubly magic nucleus 132 Sn and in the region of the classical stable doublymagic nucleus 208 Pb.

  • 24.
    Jacobsson, S
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Backlin, A
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Hakansson, A
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Jansson, Peter
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    A tomographic method for experimental verification of the integrity of spent nuclear fuel2000In: Applied Radiation and Isotopes, ISSN 0969-8043, E-ISSN 1872-9800, Vol. 53, no 4-5, p. 681-689Article in journal (Refereed)
    Abstract [en]

    A tomographic method for verification of the integrity of spent nuclear fuel assemblies has been developed. The gamma radiation field emanating from emitted radiation from within the assembly is recorded and utilised for reconstructing the internal source

  • 25.
    Jacobsson Svärd, S
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Neutron Research. Department of Physics and Astronomy, Nuclear Physics.
    Reflections on the Validation of Numerical Concepts for Nuclear Fuel Measurements2006In: Co-ordinated Expert Meeting on Numerical Modeling Concepts for IAEA SafeguardsVienna, Austria, December 19-21, 2006, 2006Conference paper (Refereed)
  • 26.
    Jacobsson Svärd, Staffan
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Håkansson, Ane
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Non-Destructive Experimental Determination of the Power Distribution in Nuclear Fuel Assemblies2005In: 2005 International Congress on Advances in Nuclear Power Plants (ICAPP 05), 2005Conference paper (Other scientific)
    Abstract [en]

    Modern production codes for core simulation perform calculations of the thermal power distribution on the individual fuel rod level. The prevalent technique to experimentally validate such calculations involves dismantling of the fuel assemblies, whereby gamma-ray measurements on individual fuel rods are performed to determine the content of the fission product 140Ba. Here, an alternative, non-destructive technique is presented, which is based on tomography. The gamma-ray flux distribution in an axial node is recorded, whereby the relative rod-by-rod content of 140Ba is reconstructed. The method does not require the fuel to be dismantled. Neither does the fuel channel present in BWR assemblies have to be removed. The applicability of the technique has been demonstrated in measurements at the Swedish BWR Forsmark 2 using a special-purpose device. The measurements were performed on irradiated fuel with a cooling time of 4 5 weeks. Data from the production code POLCA 7 has been compared to the measured rod-by-rod contents of 140Ba and an agreement of 3.0% (1 σ) has been demonstrated.

  • 27.
    Jacobsson Svärd, Staffan
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Håkansson, Ane
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Tomographic measurements for partial defect verification – experience with different devices of the stationary type2003In: 25th Annual Meeting - Symposium on Safeguards and Nuclear Materials Management, 2003Conference paper (Other scientific)
    Abstract [en]

    Tomographic measurements have been performed for the purpose of partial-defect verification on the single-rod level. The measurement procedure involves recording of the gamma radiation field emanating from emitted radiation from within an irradiated assembly and consecutive reconstruction of the internal source distribution. Different devices of the stationary type have been utilised, ranging from a laboratory device used in measurements on a fuel model to an in-pool device used in measurements on irradiated fuel in a fuel-handling pool.

    The tomographic technique has proven to be robust and reliable. Its applicability for partial-defect verification on the single-rod level has been satisfying. Some required properties of a stationary device are discussed.

  • 28.
    Jacobsson Svärd, Staffan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Kärnfysik.
    Håkansson, Ane
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Kärnfysik.
    Bäcklin, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Kärnfysik.
    Osifo, Otasowie
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Kärnfysik.
    Willman, Christofer
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Kärnfysik.
    Jansson, Peter
    Non-destructive experimental determination of the pin-power distribution in nuclear fuel2003Conference paper (Other academic)
    Abstract [en]

    A need for validation of modern core-analysis codes with respect to the calculated pin-power distribution has been recognized. A non-destructive experimental method for such validation has been developed, based on a tomographic technique. Each axial node of the fuel assembly is measured separately and the relative pin-by-pin content of the direct fission product Ba-140 is determined. Investigations performed so far indicate that 1-2% (1 σ) accuracy can be obtained.

    A measuring device has been constructed which, when fully equipped, is designed to measure a complete BWR assembly in 25 axial nodes within an eight-hour work shift. The applicability of the constructed device has been demonstrated in measurements at the Swedish BWR Forsmark 2 on irradiated fuel with a cooling time of 4-5 weeks. Data from the core-analysis code POLCA-7 have been compared to measured pin-by-pin contents of Ba-140. An agreement of 3.1% (1 σ) has been demonstrated.

    As compared to the conventional method, involving gamma scanning of individual fuel pins, this method does not require the fuel to be disassembled. Neither does the fuel channel have to be removed. The cost per measured fuel pin is in the order of 20 times lower than the conventional method.

  • 29.
    Jacobsson Svärd, Staffan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Håkansson, Ane
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Kärnfysik.
    Bäcklin, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Kärnfysik.
    Osifo, Otasowie
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Kärnfysik.
    Willman, Christofer
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Kärnfysik.
    Jansson, Peter
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. Kärnfysik.
    Nondestructive Experimental Determination of the Pin-Power Distribution in Nuclear Fuel Assemblies2005In: Nuclear Technology, ISSN 0029-5450, Vol. 151, no 1, p. 70-76Article in journal (Refereed)
    Abstract [en]

    A need for validation of modern production codes with respect to the calculated pin-power distribution has been recognized. A nondestructive experimental method for such validation has been developed based on a tomographic technique. The gamma-ray flux distribution is recorded in each axial node of the fuel assembly separately, whereby the relative rod-by-rod content of the fission product 140Ba is determined. Measurements indicate that 1 to 2% accuracy (1 sigma) is achievable.

    A device has been constructed for in-pool measurements at reactor sites. The applicability has been demonstrated in measurements at the Swedish boiling water reactor (BWR) Forsmark 2 on irradiated fuel with a cooling time of 4 to 5 weeks. Data from the production code POLCA-7 have been compared to measured rod-by-rod contents of 140Ba. An agreement of 3.1% (1 sigma) has been demonstrated.

    It is estimated that measurements can be performed on a complete BWR assembly in 25 axial nodes within an 8-h work shift. As compared to the conventional method, involving gamma scanning of individual fuel rods, this method does not require the fuel to be disassembled nor does the fuel channel have to be removed. The cost per measured fuel rod is estimated to be an order of magnitude lower than the conventional method.

  • 30. Jakobsson, B
    et al.
    Avdeichikov, V.
    Carlén, L.
    Golubev, P.
    Ekström, C.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Fridén, C.-J.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, P.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Persson, H.
    Department of Nuclear and Particle Physics. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Westerberg, L.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    The Liquid-Gas Phase Transition from Emulsions to Storage-Ring Experiments2005In: Proc. 6th Int. Conf. on Nuclear Physics at Storage Rings (STORI'05), Bonn, Germany, 2005, 2005, p. 217-Conference paper (Other (popular scientific, debate etc.))
  • 31. Jansson, P
    et al.
    Håkansson, A
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research. Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Bäcklin, A
    Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Detection of Partial Defects in Irradiated BWR Fuel Assemblies. A Preliminary Study2002In: INMM 43rd Annual Meeting (INMM),Orlando, Florida, USA, June 23-27, 2002, 2002Conference paper (Refereed)
  • 32.
    Jansson, Peter
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Håkansson, Ane
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Bäcklin, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Jacobsson, Staffan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Gamma-Ray Spectroscopy Measurements of Decay Heat in Spent Nuclear Fuel2002In: Nuclear Science and Engineering, ISSN 0029-5639, Vol. 141, no 2, p. 129-139Article in journal (Refereed)
    Abstract [en]

    A method for determining the residual thermal power in spent nuclear fuel using gamma-ray spectroscopy is suggested. It is based on the correlation between the residual power and the 137Cs activity, which is nearly linear for fuel with cooling times between 10 and 50 yr. Using available data of calorimetrically measured values of the decay heat in 69 boiling water reactor and pressurized water reactor spent-fuel assemblies resulted in agreement with a standard deviation of 3%.

  • 33.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    A Method to Disentangle Single- and Multi-Meson Production in Missing Mass Spectra From Quadi-Free pn->pnX Reactions2005Report (Other scientific)
  • 34.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Antihyperon-Hyperon Production in Antiproton-Proton Collisions2005In: Proc. 8th International Conference on Low Energy Antiproton Physics: LEAP'05, 2005Conference paper (Refereed)
  • 35. Jonter, Thomas
    et al.
    Håkansson, Ane
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Development of an academic course in safeguards and nuclear non-proliferation at Swedish universities2006In: IAEA Symposium on International Safeguards: Addressing Verification Challenges, 2006Conference paper (Other (popular scientific, debate etc.))
  • 36. Kuros-Zolnierczuk, J.
    et al.
    Thörngren Engblom, Pia
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Meyer, H.O.
    Whitaker, T.J.
    Witala, H.
    Golak, J.
    Skibinksi, R.
    Faddeev Calculations of Breakup Reactions with Realistic Experimental Constraints2004In: Few-Body Systems, Vol. 34, p. 259-273Article in journal (Refereed)
    Abstract [en]

    We present a method to integrate predictions from a theoretical model of a reaction with three bodies in the final state over the region of phase space covered by a given experiment. The method takes into account the true experimental acceptance, as well as variations of detector efficiency, and eliminates the need for a Monte-Carlo simulation of the detector setup. The method is applicable to kinematically complete experiments. Examples of the use of this method include sveral polarization observables in dp breakup at 270 MeV. The calculations are carried out in the Faddeev framework with the CD Bonn nucleon-nucleon interaction, with or without the inclusion of an additional three-nucleon force.

  • 37.
    Lehmann, Inti
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Nordhage, Örjan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Wiedner, Ulrich
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Vacuum Predictions and Measurements for an Internal Pellet Target2007Report (Other scientific)
  • 38.
    Lundborg, Agnes
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Exotic charmonium hybrids at PANDA2004In: Hadron Spectroscopy, 2004Conference paper (Other scientific)
  • 39.
    Lundborg, Agnes
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Barnes, Ted
    Wiedner, Ulrich
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Charmonium in production in ppbar annihilation: Estimating cross sections from decay widths2005In: arXiv: Electronical access to physics preprints, Vol. hep-ph, no 0507166Article in journal (Other scientific)
    Abstract [en]

    The cross sections for the charmonium production processes p+pbar->m+psi, where m is a light meson and psi is a charmonium state, are of great interest for the planned p+pbar experiment PANDA. In this paper we estimate these cross sections using known results for the decays psi->m+p+pbar, which are related to these reactions by crossing. In lieu of detailed experimental data on the decay Dalitz plots, we assume a constant amplitude as a first approximation; this implies a simple relation between the cross sections and decay widths. The single measured exclusive cross section of this type is p+pbar->pi0+Jpsi, which was reported by E760 to be 130+-25 pb near sqrt(s)=3.5-3.6 GeV. In comparison, our constant amplitude estimate is about 300 pb at this energy. This suggests that our approach is useful as a simple estimate, but should be refined through detailed modeling of resonances and other energy-dependent effects in the experimental psi->m+p+pbar Dalitz plots.

  • 40.
    Lundqvist, Tobias
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    SPECT imaging as a tool to prevent proliferation of nuclear weapons2006In: International conference on imaging techniques in subatomic physics, astrophysics, medicine, biology and industry: IMAGING 2006, 2006Conference paper (Other (popular scientific, debate etc.))
    Abstract [en]

    International efforts are taken to avoid the proliferation of material and technologies that may lead to the development of nuclear weapons. These activities are called safeguards and involve inspections of spent nuclear fuel at nuclear power plants and storage facilities. At these inspections, various measuring techniques are employed for verifying the presence and identity of spent nuclear fuel assemblies. However, a fuel assembly contains about 100-300 fuel rods and techniques are also requested for verifying that no individual fuel rods have been removed from the assembly. For this purpose, a non-destructive tomographic measurement technique for spent fuel assemblies is being developed at Uppsala University, based on Single Photon Emission Computed Tomography, SPECT.

    The technique utilizes the gamma-ray emission from spent fuel. The first step of the methodology is the recording of the gamma-ray flux distribution in a large number of positions around the fuel assembly, using gamma-ray detectors attached to a collimator system. In a following step, a cross-sectional image of the source distribution in the fuel assembly is reconstructed. Because the fuel rods are highly activated during reactor operation and because they are stored in water with practically no radioactive content, they appear very clearly in this type of images.

    The technique has earlier been used for determining the power distribution in fuel assemblies [1]. The images obtained in those measurements show that the technique has great potential also for the safeguards application. In the on-going development of the technique specifically for safeguards, image analysis plays an important role. Some crucial points in the analysis are the identification and positioning of the assembly in the image and also the definition of the background activity level. Finally, proper criteria have to be set for confidently stating if a fuel rod would be considered to be missing.

  • 41.
    Lundqvist, Tobias
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    Tomographic Methods Applied on Spent Nuclear Fuel Assemblies; Analytical Reconstruction Techniques2005Report (Other (popular scientific, debate etc.))
    Abstract [en]

    Nuclear fuel assemblies that have been irradiated in nuclear power plants are highly radioactive. The emission of gamma rays from the fuel can be used for non-destructive assay. In SPECT, a tomographic technique, cross-sectional images of the internal activity distribution can be obtained by performing external gamma ray measurements.

    The usefulness of tomographic methods has been identified in two areas; (1) determining the relative activities of specific isotopes in individual fuel rods for validation of production codes, and (2) verification of fuel assembly integrity, i.e. controlling that no fuel rods are missing or replaced for safeguards purposes. The applicability of analytical tomographic reconstruction techniques is investigated in this paper.

    The analytical algorithms are based on a backprojection principle. Three algorithms have been tested, based on different assumptions regarding gamma-ray interactions. In the first algorithm, attenuation of gamma rays is omitted. The second algorithm incorporates attenuation effects. In the third algorithm, also solid angle effects are incorporated. For all three algorithms, the geometry of the fuel assemblies is assumed to be unknown.

    Investigations have been performed based on simulated data of the SVEA-96S fuel type. In the simulation, the activity content in all 96 fuel rods was set to be equal. Images obtained in tomographic reconstructions based on simulated data are presented.

    Finally, the applicability of the methods on experimental data has been demonstrated using data from previous measurements performed at the Forsmark 2 reactor on an irradiated fuel assembly.

    The outcome of this work is consistent with the conclusions drawn by other groups that have studied the same system before us with other methods.

  • 42. Meyer, H.O.
    et al.
    Whitaker, T J
    Pollock, R E
    Von Przewoski, B
    Rinckel, T
    Doskow, J
    Kuroś-Zołnierczuk, J
    Thörngren Engblom, P
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Avdelningen för kärnfysik.
    Pancella, P V
    Wise, T
    Lorentz, B
    Rathmann, F
    Axial observables in d-->p--> breakup and the three-nucleon force.: PINTEX Collaboration2004In: Phys Rev Lett, ISSN 0031-9007, Vol. 93, no 11, p. 112502-Article in journal (Refereed)
  • 43. Olmos, M.
    et al.
    Prokofiev, A.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Gaillard, R.
    Unfolding procedure for SER Measurements Using Quasi-Monoenergetic Neutrons2005In: Proc. IEEE Int. Reliability Physics Symposium (IRPC'2005), San Jose, CA, USA, 2005, p. 696-Conference paper (Other scientific)
  • 44. Pauly, C.
    et al.
    Jacewicz, Marek
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Koch, Inken
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Calen, Hans
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Capellaro, Filippo
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Gustafsson, Leif
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Höistad, Bo
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Keleta, Samson
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kullander, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Pettersson, Henrik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Schönning, Karin
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Thörngren, Pia
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Zlomanczuk, Jozef
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    The p p -> p p pi pi pi reaction channels in the threshold region2007Report (Other scientific)
  • 45. Rinckel, T.
    et al.
    Thörngren-Engblom, P.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    et al.,
    Facility for studying spin dependence in pion production near threshold2000In: Nucl.Instrum.Meth.A, Vol. 439, p. 117-133Article in journal (Refereed)
  • 46.
    Söderström, Pär-Anders
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Detection of fast neutrons and digital pulse-shape discrimination between neutrons and gamma-rays2008In: Proceedings of the International School of Physics 'Enrico Fermi', Course CLXIX: Nuclear Structure far from Stability: new Physics and new Technology, 2008, p. 551-555Conference paper (Other scientific)
    Abstract [en]

    The basic principles of detection of fast neutrons with liquid scintillator detectors are reviewed, together with a real example in the form of the Neutron Wall array. Two of the challenges in neutron detection, discrimination of neutrons and gamma rays and identification of cross talk between detectors due to neutron scattering, are briefly discussed, as well as possible solutions to these problems. The possibilities of using digital techniques for pulse-shape discrimination are examined. Results from a digital and analog versions of the zero cross-over algorithm are presented. The digital pulse-shape discrimination is shown to give, at least, as good results as the corresponding analogue version.

  • 47.
    Söderström, Pär-Anders
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear and Particle Physics.
    Nyberg, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear and Particle Physics.
    Wolters, Roland
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear and Particle Physics.
    Digital pulse-shape discrimination of fast neutrons and gamma rays2008In: 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 1, p. 79-89Article in journal (Refereed)
    Abstract [en]

    Discrimination of the detection of fast neutrons and γ rays in a liquid scintillator detector has been investigated using digital pulse-processing techniques. An experimental setup with a 252Cf source, a BC-501 liquid scintillator detector, and a BaF2 detector was used to collect waveforms with a 100 Ms/s, 14 bit sampling ADC. Three identical ADCs were combined to increase the sampling frequency to 300 Ms/s. Four different digital pulse-shape analysis algorithms were developed and compared to each other and to data obtained with an analogue neutron–γ discrimination unit. Two of the digital algorithms were based on the charge comparison method, while the analogue unit and the other two digital algorithms were based on the zero-crossover method. Two different figure-of-merit parameters, which quantify the neutron–γ discrimination properties, were evaluated for all four digital algorithms and for the analogue data set. All of the digital algorithms gave similar or better figure-of-merit values than what was obtained with the analogue setup. A detailed study of the discrimination properties as a function of sampling frequency and bit resolution of the ADC was performed. It was shown that a sampling ADC with a bit resolution of 12 bits and a sampling frequency of 100 Ms/s is adequate for achieving an optimal neutron–γ discrimination for pulses having a dynamic range for deposited neutron energies of 0.3–12 MeV. An investigation of the influence of the sampling frequency on the time resolution was made. A FWHM of 1.7 ns was obtained at 100 Ms/s.

  • 48.
    Tengblad, Ulla
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Fäldt, Göran
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Wilkin, Colin
    Department of Physics and Astronomy, Nuclear Physics.
    Theoretical description of the pd=>pdeta reaction near threshold2005In: The European Physical Journal A, Vol. 25, p. 267-273Article in journal (Refereed)
    Abstract [en]

    Three different driving terms for the reaction pd=>pdeta at low energy are evaluated. Near threshold a two-step process dominates whereas impulse diagram contribution is negligible. At energies high enough for eta production in free nucleon-nucleon collisions the pick-up contributions turns out to be suppressed.

  • 49. Tungström, G
    et al.
    Westerberg, L.
    Uppsala University, Interfaculty Units, The Svedberg Laboratory. Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Spohr, R.
    Petersson, C.S.
    Fabrication and Characterization of Thin Delta-E Detectors for Spectroscopic Applications2005In: Nucl. Instr. and Meth. Phys. Res., Vol. A546, p. 312-Article in journal (Refereed)
  • 50.
    Wiedner, Ulrich
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics. Kärnfysik.
    4pi-DECAYS OF SCALAR AND VECTOR MESONS.2001In: Eur. Phys. J., Vol. C, no 21, p. 261-Article in journal (Refereed)
12 1 - 50 of 57
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