Analysis of pulse-shape discrimination techniques for BC501A using GHz digital signal processing

Conference · Mon Jan 01 04:00:00 EST 2001

OSTI ID:975293

Rooney, B D ^[1]; Dinwiddie, D R ^[2]; Nelson, M A ^[3]; Rawool-Sullivan, Mohini W

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1. Brian D.
2. Derek R.
3. Mark A.

A comparison study of pulse-shape analysis techniques was conducted for a BC501A scintillator using digital signal processing (DSP). In this study, output signals from a preamplifier were input directly into a 1 GHz analog-to-digital converter. The digitized data obtained with this method was post-processed for both pulse-height and pulse-shape information. Several different analysis techniques were evaluated for neutron and gamma-ray pulse-shape discrimination. It was surprising that one of the simplest and fastest techniques resulted in some of the best pulse-shape discrimination results. This technique, referred to here as the Integral Ratio technique, was able to effectively process several thousand detector pulses per second. This paper presents the results and findings of this study for various pulse-shape analysis techniques with digitized detector signals.

• Research Organization: Los Alamos National Laboratory
• Sponsoring Organization: DOE
• OSTI ID: 975293
• Report Number(s): LA-UR-01-2072
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANALOG-TO-DIGITAL CONVERTERS
NEUTRONS
PHOSPHORS
PREAMPLIFIERS
PROCESSING