Münster 2011 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 55: Instrumentierung X

HK 55.2: Talk

Thursday, March 24, 2011, 14:30–14:45, HS2

A differential MRPC prototype for CBM — •Ingo Deppner and Norbert Herrmann — Physikalisches Institut, Universität Heidelberg

The key element providing hadron identification at incident energies between 2 and 45 AGeV in the future Compressed Baryonic Matter (CBM) spectrometer at FAIR is a time-of-flight wall placed at 10 m distance from the target covering the polar angular range from 2.5^∘-25^∘ and full azimuth [1]. A full system ToF resolution better then 80 ps is required to achieve the necessary particle identification properties.
The existing conceptual design foresees a 120 m² big ToF-wall composed of Multi-gap Resistive Plate Chambers (MRPC) at which the outer-most part can be covered with float glass RPCs in a multi-strip configuration.
Based on in-beam tests at GSI at Darmstadt and COSY at Jülich we will present results on the performance reached with a fully differential multi-strip MRPC prototype with normal float glass developed at the Physikalisches Institut at University of Heidelberg.

Supported by EU/FP7 WP2; BMBF 06HD9121I.
[1] I. Deppner et al., The CBM time-of-flight wall, doi.org/10.1016
/j.nima.2010.09.165