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Münster 2011 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 55: Instrumentierung X

HK 55.4: Talk

Thursday, March 24, 2011, 15:00–15:15, HS2

Testing a Prototype Ceramic MRPC at ELBE. — •Alejandro Laso, Richard Peschke, Rico Eißmann, Burkhard Kämpfer, Roland Kotte, Lothar Naumann, Daniel Stach, Christian Wendisch, and Jörn Wüstenfeld — Helmholtz-Zentrum Dresden Rossendorf

The use of multi-gap resistive plate chambers, MRPCs, has been proposed for the ToF wall in the future CBM experiment. Due to the high rates expected, ≈ 20 kHz/cm2, it is necessary to develop new resistive materials capable of withstanding such rates [1, 2].

At the Helmholtz-Zentrum Dresden Rossendorf, various RPCs have been built with high resistive ceramic plates (109−1010 Ohm · cm), up to areas of 20x20 cm2, and tested with 30 MeV electrons at the superconducting electron accelerator facility ELBE.

In this talk, the test facility will be described as well as the results of our measurements of a MRPC prototype. The behavior of the detector, its efficiency, time resolution and rate capabilities will be discussed.

[1] L. Naumann, et al., Nucl. Instr. and Meth. A (2010), doi:10.1016/j.nima.2010.06.302

[2] L. Naumann, et al., Nucl. Instr. and Meth. A (2010), doi:10.1016/j.nima.2010.09.121

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