Multianode Photo Multiplier Tubes as Photo Detectors for Ring Imaging Cherenkov Detectors

Details Multianode Photo Multiplier Tubes as Photo Detectors for Ring Imaging Cherenkov Detectors Multianode Photo Multiplier Tubes as Photo Detectors for Ring Imaging Cherenkov Detectors

2003-02-27

arxiv.org/abs/hep-ex/0302041v1

Nucl.Instrum.Meth. A502 (2003) 52-56

Physics

High Energy Physics

High Energy Physics - Experiment

5 pages, 6 figures, 8 .eps files, RICH2002 conference, Pylos

Scientific paper

10.1016/S0168-9002(02)02157-5

The 64-channel Multianode Photo Multiplier (MaPMT) has been evaluated as a candidate for the LHCb Ring Imaging Cherenkov (RICH) photo detectors. We present result from data taken with a 3x3 array of closely packed MaPMTs mounted onto the RICH 1 prototype vessel, exposed to charged particle beams at CERN, and read out at LHC speed. Using a LED light source, we have performed spatial light scans to study the light collection efficiency of the MaPMTs We have also measured the performance of the MaPMTs as a function of the applied high voltage. Different dynode resistor chains have been used to study the tubes at low gains. In addition, we have studied the behaviour of the MaPMT in magnetic fields.

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