Abstract
The CERN LHC experiment CMS [1] has selected for the readout of the barrel crystal calorimeter [2] a 5×5 mm2 avalanche photodiode (APD) manufactured by Hamamatsu Photonics. In the detector we will equip each crystal with two APD's for a total of 122,400 diodes. As the calorimeter will be almost completely inaccessible during the life of the detector, the assurance that they will survive with a high probability in the intense radiation field is an essential part of the of the APD qualification process. In this paper the properties of the APD selected will be described, as well as the procedures we have developed to assure their radiation hardness and reliability.
Original language | English (US) |
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Title of host publication | IEEE Nuclear Science Symposium and Medical Imaging Conference |
Editors | D. Merelli, J. Surget, M. Ulma |
Volume | 1 |
State | Published - Dec 1 2000 |
Event | 2000 IEEE Nuclear Science Symposium Conference Record - Lyon, France Duration: Oct 15 2000 → Oct 20 2000 |
Other
Other | 2000 IEEE Nuclear Science Symposium Conference Record |
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Country/Territory | France |
City | Lyon |
Period | 10/15/00 → 10/20/00 |