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

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:513085

Simoes, P C.P.S.; Veloso, J F.C.A.; Conde, C A.N. ^[1]

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1. Universidade de Coimbra (Portugal); and others

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 for 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 {sup 109}Cd x-ray source improves from 5.6 to 5.1 % and the peak-to-background ratio increases from 30 to 170.

• OSTI ID: 513085
• Report Number(s): CONF-961123--; CNN: Grant BD/2825/93-RM
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
DIGITAL SYSTEMS
GAS SCINTILLATION DETECTORS
PROPORTIONAL COUNTERS
PULSE TECHNIQUES
SIGNAL CONDITIONING
X-RAY SPECTROMETERS