ANALYSIS OF SPECTRUM DISTORTIONS IN A HIGH-THROUGHPUT GAMMA-RAY SPECTROSCOPY SYSTEM USING A NAI(TL) DETECTOR AND A TRANSVERSAL FILTER

Authors
BAZHENOV AN IVANOV VV
Citation
An. Bazhenov et Vv. Ivanov, ANALYSIS OF SPECTRUM DISTORTIONS IN A HIGH-THROUGHPUT GAMMA-RAY SPECTROSCOPY SYSTEM USING A NAI(TL) DETECTOR AND A TRANSVERSAL FILTER, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 332(3), 1993, pp. 537-542
Citations number
14
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
332
Issue
3
Year of publication
1993
Pages
537 - 542
Database
ISI
SICI code
0168-9002(1993)332:3<537:AOSDIA>2.0.ZU;2-7
Abstract
A pulse-height analyzing system, designed to measure the 2.22 MeV gamm a-ray circular polarization from the np --> dgamma reaction with polar ized neutrons, is described. The system comprises a NaI(Tl) detector, a photomultiplier, and a transversal filter. The system characteristic s include a high value of throughput with counting losses of order 10% in the photopeak region at a counting rate of 3.5 x 10(5) S-1 with 10 % resolution of the hydrogen photopeak. The distortions of the spectru m can be described by a stochastic matrix. Elements of the matrix were measured by response of the system to pulses from a precision pulse g enerator (FWHM = 0.5%), which were added to the statistical events.