Bochum 2009 – scientific programme
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HK: Fachverband Hadronen und Kerne
HK 76: Accelerators and Instrumentation II
HK 76.3: Talk
Thursday, March 19, 2009, 17:30–17:45, H-ZO 90
Timing measurements at ELBE on multigap resistive plate chamber prototypes for NeuLAND — •Dmitry Yakorev1, Tom Aumann2, Daniel Bemmerer1, Konstanze Boretzky2, Tom Cowan1, Michael Elvers3, Jörg Hehner2, Michael Heil2, Jens Volker Kratz4, Wawrczek Prokopowicz2, René Reifarth2, Dominic Rossi4, Gerhard Schrieder2, Daniel Stach1, Andreas Wagner1, and Andreas Zilges3 — 1Forschungszentrum Dresden-Rossendorf (FZD), Dresden — 2Gesellschaft für Schwerionenforschung (GSI), Darmstadt — 3Universität zu Köln — 4Johannes-Gutenberg-Universität, Mainz
The NeuLAND detector for fast neutrons (0.2-1 GeV) at the R3B experiment at FAIR aims for high time and spatial resolutions (σt<100 ps, σx,y,z<1 cm). The detector will consist of about 60 sequences of a stacked structure from iron converter material and multigap resistive plate chambers (MRPC’s). The secondary charged particles stemming from hadronic interactions of the high energetic neutrons in the converter will be detected in the MRPC’s, with excellent timing properties. As part of the ongoing development of the NeuLAND detector, MRPC prototypes designed for this application have been studied at the superconducting electron linac ELBE in Dresden with its picosecond time structure. The ELBE experiments show that the prototypes studied so far have efficiency ≥90% for minimum ionizing particles in a 2x2 gap structure and fulfill the called for time resolution. — Supported by BMBF (06DR134I) and GSI (FuE DR-GROS).