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

Volume

1

fYear

2000

fDate

2000

Firstpage

11871

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2000 IEEE

Conference_Location

Lyon

ISSN

1082-3654

Print_ISBN

0-7803-6503-8

Type

conf

DOI

10.1109/NSSMIC.2000.949269

Filename

949269