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The Forward Endcap of the Electromagnetic Calorimeter for the PANDA Detector at FAIR
Ruhr Univ., Bochum, Germany.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
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Number of Authors: 534
2015 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 587, no 1, 012050Article in journal (Refereed) Published
Abstract [en]

The versatile 4π-detector PANDA will be built at the Facility for Antiproton and Ion Research (FAIR), an accelerator complex, currently under construction near Darmstadt, Germany. A cooled antiproton beam in a momentum range of 1.5 – 15GeV/c will be provided by the High Energy Storage Ring (HESR). All measurements at PANDA rely on an excellent performance of the detector with respect to tracking, particle identification and energy measurement. The electromagnetic calorimeter (EMC) of the PANDA detector will be equipped with 15744 PbWO(4) crystals (PWO-II), which will be operated at a temperature of – 25° C in order to increase the light output. The design of the forward endcap of the EMC has been finalized. The crystals will be read out with Large Area Avalanche Photo Diodes (LAAPDs) in the outer regions and with Vacuum Photo Tetrodes (VPTTs) in the innermost part. Production of photosensor units utilizing charge integrating preamplifiers has begun. A prototype comprised of 216 PbWO4 crystals has been built and tested at various accelerators (CERN SPS, ELSA/Bonn, MAMI/Mainz), where the crystals have been exposed to electron and photon beams of 25MeV up to 15GeV. The results of these test measurements regarding the energy and position resolution are presented.

Place, publisher, year, edition, pages
2015. Vol. 587, no 1, 012050
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-287336DOI: 10.1088/1742-6596/587/1/012050OAI: oai:DiVA.org:uu-287336DiVA: diva2:922566
Conference
16th Int. Conf. on Calorimetry in High Energy Physics (CALOR 2014), Giessen Germany, 6-11 April, 2014
Note

PANDA Collaboration, for complete list of authors see http://dx.doi.org/10.1140/epja/i2015-15107-y

Available from: 2016-04-22 Created: 2016-04-22 Last updated: 2016-04-22

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Caldeira Balkeståhl, LiCalén, HansFransson, KjellKupsc, AndrzejMarciniewski, PawelSchönning, KarinPettersson, JoachimWolke, Magnus
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Nuclear Physics
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Journal of Physics, Conference Series
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