Application of the digital pulse processing technique to gas proportional scintillation counters

Author

Simoes, P.C.P.S. ; Veloso, J.F.C.A. ; dos Santos, J.M.F. ; Conde, C.A.N.

Author_Institution

Dept. de Fisica, Univ. de Coimbra, Portugal

Volume

44

Issue

3

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

521

Lastpage

526

Abstract

Digital signal processing techniques have been developed to analyze the signals from a gas proportional scintillation counter (GPSC). Compared to analog systems, the digital technique is a very simple and powerful tool for manipulating and improving pulse-height distributions with no additional electronic components. Among the features inherent in digital signal processing are pulse risetime discrimination, pulse pileup correction and rejection, and background rejection. By allowing the rejection of signal pulses from X-ray interactions within the scintillation region and/or near insensitive regions of the detector, an improvement in the pulse-height distribution has been effectively achieved. Using this technique the energy resolution for the 22.1 keV line of a ¹⁰⁹Cd X-ray source improves from 5.6 to 5.1% and the peak-to-background ratio increases from 30 to 170

Keywords

counting circuits; drift chambers; gas scintillation detectors; xenon; (109)Cd X-ray source; X-ray interactions; Xe; background rejection; digital pulse processing technique; digital signal processing techniques; gas proportional scintillation counters; peak-to-background ratio; pulse pileup correction; pulse risetime discrimination; pulse-height distributions; Clouds; Digital signal processing; Electrons; Scintillation counters; Signal analysis; Signal processing; Solid scintillation detectors; Spectroscopy; X-ray detection; X-ray detectors;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.603704

Filename

603704