Mainz 2012 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 4: Instrumentation
HK 4.6: Talk
Monday, March 19, 2012, 15:30–15:45, P 2
(contribution withdrawn)A 200 cm × 50 cm large multigap resistive plate chamber based neutron detector — •Dmitry Yakorev1, Marko Röder2, Zoltán Elekes1, Daniel Bemmerer1, Thomas Cowan1,2, Mathias Kempe1, Manfred Sobiella1, Daniel Stach1, Andreas Wagner1, and Kai Zuber2 — 1Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden — 2TU Dresden
A prototype for a multigap resistive plate chamber (MRPC) based detector of 200 cm × 50 cm size for 1 GeV neutrons has been developed, built and tested. The principle of operation is (1) the conversion of the high-energy neutron to a charged particle in an iron converter, and (2) the detection of the charged particle in the MRPC. Experiments using the single-electron mode of operation of the ELBE 40 MeV electron accelerator showed that a time resolution of σt<100 ps was reached for minimum-ionizing particles, at nearly full efficiency. Extensive simulations show that it is feasible to construct a time-of-flight detector for GeV neutrons based on such a principle. — Supported by BMBF (06DR9058I) and GSI FuE (DR-GROS and DR-ZUBE).