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A digital pulse shortening method for the mitigation of pulse pile-up effect in scintillation radiation detectors

Nakhostin, M., Taggart, M.P. and Sellin, P.J. (2019) A digital pulse shortening method for the mitigation of pulse pile-up effect in scintillation radiation detectors Journal of Instrumentation, 14, P04012. pp. 1-9.

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Abstract

The pulse pile-up effect can significantly degrade the spectroscopic performance of scintillation radiation detectors at high counting rates. This paper reports on a digital pulse processing method for shortening the duration of scintillation pulses, thereby alleviating the pulse pile-up effect. The method operates based on replacing the decay-time constant of the scintillation pulses with a shorter decay-time constant. The details of the digital algorithm are presented and the performance of the method at a high counting rate of 795 kHz is experimentally examined with a NaI(Tl) detector. The effects of the pulse shortening on the spectroscopic performance of the system are also discussed.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
NameEmailORCID
Nakhostin, M.M.Nakhostin@surrey.ac.uk
Taggart, M.P.m.taggart@surrey.ac.uk
Sellin, P.J.P.Sellin@surrey.ac.uk
Date : 23 April 2019
DOI : 10.1088/1748-0221/14/04/P04012
Copyright Disclaimer : © 2019 IOP Publishing Ltd and Sissa Medialab
Uncontrolled Keywords : Data processing methods; Digital signal processing (DSP); Scintillators and scintillating fibres and light guides
Depositing User : Clive Harris
Date Deposited : 09 May 2019 14:28
Last Modified : 09 May 2019 14:28
URI: http://epubs.surrey.ac.uk/id/eprint/851779

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