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Study of resistive plate chambers for the alice dimuon spectrometer

✍ Scribed by R. Arnaldi; A. Baldit; N. Bastid; G. Blanchard; E. Chiavassa; P. Cortese; G. Dellacasa; N. De Marco; P. Dupieux; B. Espagnon; J. Fargeix; M. Gallio; L. Luquin; F. Manso; V. Metivier; A. Musso; A. Piccotti; A. Rahmani; V. Ramillen; O. Roig; L. Royer; E. Scomparin; C. Soave; E. Vercellin

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
411 KB
Volume
78
Category
Article
ISSN
0920-5632

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✦ Synopsis

The trigger system of the Alice dimuon spectrometer is based on RPC detectors. We present experimental results of a beam test about rate capability, time resolution and cluster size of single gap RPC detectors operating both in 'streamer mode' and in 'avalanche mode'. We have compared the performances of small chambers (50x50 cm 2) built with bakelite of different resistivity, from ,,-3.109 f2cm to ,-, 3. 1011 ~2cm. For the low resistivity RPC we obtained a rate capability of several hundreds of Hz/cm 2 when it is operating in 'streamer mode', and of several thousands of Hz/cm 2 when it is operating in 'avalanche mode'.

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