DocumentCode
1926567
Title
Incidence angle dependence of the quantum efficiency uniformity of photomultipliers
Author
Veloso, João F C A ; Conde, C.A.N.
Author_Institution
Dept. of Phys., Coimbra Univ., Portugal
fYear
1992
fDate
25-31 Oct 1992
Firstpage
21
Abstract
A simple system is described that allows the study of the nonuniformity of the quantum efficiency of a photomultiplier as a function of the angle of incidence of the light for a variety of wavelengths. Results are presented for the EMI 9956QQB and discussed for both this model and the 9956QB photomultipliers, tubes frequently used in gas proportional scintillation counters. It is shown that the photocathode uniformity is better for shorter wavelengths and for incidence angles which are not too large
Keywords
photomultipliers; EMI 9956QB; EMI 9956QQB; gas proportional scintillation counters; light incidence angle; nonuniformity; photocathode; photomultiplier; quantum efficiency; Anodes; Cathodes; Electromagnetic interference; Energy resolution; Light sources; Optical collimators; Photomultipliers; Scintillation counters; Signal analysis; Xenon;
fLanguage
English
Publisher
ieee
Conference_Titel
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE
Conference_Location
Orlando, FL
Print_ISBN
0-7803-0884-0
Type
conf
DOI
10.1109/NSSMIC.1992.301172
Filename
301172
Link To Document