Bochum 2009 – wissenschaftliches Programm
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HK: Fachverband Hadronen und Kerne
HK 76: Accelerators and Instrumentation II
HK 76.4: Vortrag
Donnerstag, 19. März 2009, 17:45–18:00, H-ZO 90
Studies on multigap resistive plate chamber prototypes for the new NeuLAND detector at the R3B experiment at FAIR — •Michael Elvers1, Tom Aumann2, Daniel Bemmerer3, Konstanze Boretzky2, Janis Endres1, Jörg Hehner2, Michael Heil2, Jens Volker Kratz4, Wawrczek Prokopowicz2, René Reifarth2, Dominic Rossi4, Gerhard Schrieder2, Daniel Stach3, Andreas Wagner3, Dmitry Yakorev3, and Andreas Zilges1 — 1IKP, Universität zu Köln — 2Gesellschaft für Schwerionenforschung (GSI), Darmstadt — 3Forschungszentrum Dresden-Rossendorf (FZD), Dresden — 4Johannes-Gutenberg-Universität, Mainz
The NeuLAND detector is part of the R3B experiment at FAIR and will detect neutrons between 0.2 and 1 GeV. The high energy neutrons are converted to charged particles, mainly protons, which are detected by Multigap Resistive Plate Chambers (MRPC).
For the detector, a time resolution of σt < 100 ps and a position resolution of σx,y,z ≈ 1 cm is required for given flight paths in the range from 10 to 35 m. An active area of 2 × 2 m2 of the neutron detector at a distance of 12.5 m to the target will match the angular acceptance of ± 80 mrad for the neutrons defined by the gap of the superconducting dipole magnet.
The salient features of the prototypes will be described, as well as electrical measurements and studies with cosmic rays.