Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

HK: Fachverband Hadronen und Kerne

HK 76: Accelerators and Instrumentation II

HK 76.3: Vortrag

Donnerstag, 19. März 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 (σ_t<100 ps, σ_x,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).