COMPARISON OF EFFICIENCY FUNCTIONS FOR GE GAMMA-RAY DETECTORS IN A WIDE ENERGY-RANGE

Authors
KIS Z FAZEKAS B OSTOR J REVAY Z BELGYA T MOLNAR GL KOLTAY L
Citation
Z. Kis et al., COMPARISON OF EFFICIENCY FUNCTIONS FOR GE GAMMA-RAY DETECTORS IN A WIDE ENERGY-RANGE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 418(2-3), 1998, pp. 374-386
Citations number
21
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
418
Issue
2-3
Year of publication
1998
Pages
374 - 386
Database
ISI
SICI code
0168-9002(1998)418:2-3<374:COEFFG>2.0.ZU;2-N
Abstract
The applicability of linear parameter functions for fitting the full-e nergy peak efficiency of Ge gamma-ray detectors has been examined in a wide energy range of 50-8500 keV, typical for prompt gamma activation analysis,by using efficiency data measured with the Budapest capture gamma-ray spectrometer. In a least-squares fitting procedure involving correlation and singular value decomposition the performance of six d ifferent analytical functions has been compared. It turns out that a h igh-order polynomial function on a log-log scale gives the best perfor mance if a proper fitting procedure is used, as in the program Hyperme t-PC. (C) 1998 Elsevier Science B.V. All rights reserved.