Title :
Avalanche photodiodes for the CMS detector
Author :
Deiters, K. ; Dorokhov, A. ; Ingram, Q. ; Nicol, S. ; Musienko, I. ; Patel, B. ; Renker, D. ; Reucroft, S. ; Rusack, R. ; Sakhelashvili, T. ; Singovski, A. ; Swain, J. ; Vikas, P.
Author_Institution :
Paul Scherrer Inst., Villigen, Switzerland
Abstract :
The CERN LHC experiment CMS has selected for the readout of the barrel crystal calorimeter a 5×5 mm2 avalanche photodiode (APD) manufactured by Hamamatsu Photonics. In the detector we will equip each crystal with two APDs for a total of 122400 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
Keywords :
avalanche photodiodes; CMS detector; avalanche photodiode; barrel crystal calorimeter; radiation hardness; reliability; Avalanche photodiodes; Collision mitigation; Design optimization; Electromagnetic radiation; Large Hadron Collider; Mesons; Photodetectors; Photonic crystals; Radiation detectors; Semiconductor diodes;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949269
