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Assessment of the photoelectron number for photomultipliers under conditions of low light intensities

Peak, L.S., and Soler, P. (1991) Assessment of the photoelectron number for photomultipliers under conditions of low light intensities. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 301 (2). pp. 341-349. ISSN 0168-9002 (doi:10.1016/0168-9002(91)90477-8)

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Publisher's URL: http://dx.doi.org/10.1016/0168-9002(91)90477-8

Abstract

The traditional method of assessing the mean photoelectron number from the distribution of anode pulses from a photomultiplier is discussed. The various corrections that need to be incorporated to account for dynode fluctuations and nonuniformities are considered in turn. A completely independent method is derived utilising the number of zero responses resulting from interruptions in the dynode multiplication process. Both methods are applied to an EMI 9623B 17.2 cm tube, their regions of validity are defined and the results compared. The method using zero responses is seen to be particularly useful at very low light intensities where the other method fails. A high gain RCA C70133B tube with clearly visible single photoelectron peaks is used to verify the reliability of the above two methods.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Soler, Prof Paul
Authors: Peak, L.S., and Soler, P.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ISSN:0168-9002

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