A HYBRID METHOD FOR CALCULATING ABSOLUTE PEAK EFFICIENCY OF GERMANIUMDETECTORS

Authors
JIANG SH LIANG JH CHOU JT LIN UT YEH WW
Citation
Sh. Jiang et al., A HYBRID METHOD FOR CALCULATING ABSOLUTE PEAK EFFICIENCY OF GERMANIUMDETECTORS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 413(2-3), 1998, pp. 281-292
Citations number
16
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
413
Issue
2-3
Year of publication
1998
Pages
281 - 292
Database
ISI
SICI code
0168-9002(1998)413:2-3<281:AHMFCA>2.0.ZU;2-S
Abstract
We propose a hybrid method using the Moens concept of effective solid angle for calculating absolute peak efficiency of germanium detectors for extended sources. The effective solid angle is evaluated according to Monte Carlo integration instead of conventional numerical integrat ion. The proposed hybrid method was tested for point, disk, cylinder, and Marinelli-beaker sources with essentially identical results as com pared with those calculated using conventional numerical integration, The off-axis effect of source positions and the absolute peak efficien cy for cuboid sources were also analyzed to demonstrate the powerful c apability of the proposed hybrid method. (C) 1998 Elsevier Science B.V . All rights reserved.