A method for comparing degradation of boron trifluoride and helium detectors in neutron and gamma fields

Author

Qian, T. ; Tonner, P. ; Keller, N. ; Buyers, W.J.L.

Author_Institution

Atomic Energy of Canada Ltd., Ottawa, Ont., Canada

Volume

45

Issue

3

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

636

Lastpage

642

Abstract

A method developed to measure the degradation of neutron detectors in neutron and gamma fields has been applied to five models of boron trifluoride (BF₃) detectors from major suppliers, and to a special helium (³He) detector model. The detectors tested all have about the same nominal neutron sensitivity and overall dimensions. The showed widely different neutron and gamma durability for BF₃ models, an undesirable time-dependent gamma degradation followed by recovery for some BF₃, models, and very robust performance of the modified ³He detector

Keywords

boron compounds; fission reactor instrumentation; gamma-ray effects; helium-3 counters; neutron effects; solid scintillation detectors; BF₃; He; boron trifluoride; gamma durability; gamma fields; helium detectors; modified ³He detector; neutron durability; neutron fields; nominal neutron sensitivity; undesirable time-dependent gamma degradation; Boron; Councils; Gamma ray detection; Gamma ray detectors; Helium; Neutrons; Pulse measurements; Rivers; Testing; Thermal degradation;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.682463

Filename

682463