DocumentCode
1176440
Title
Neutron response functions improved by taking into consideration the measured edge effect of the 3He proportional counter
Author
Takeda, N. ; Kudo, K.
Author_Institution
Electrotech. Lab., Ibaraki, Japan
Volume
41
Issue
4
fYear
1994
fDate
8/1/1994 12:00:00 AM
Firstpage
880
Lastpage
883
Abstract
Relative gas multiplication along the cylindrical axis of a 3 He proportional counter was measured by using a collimated beam of thermal neutrons produced in a graphite pile. The gas multiplication changed gradually in the vicinity of both edges of the sensitive region. The total transition region of the gas multiplication was found to correspond to 23% of the nominal sensitive region. Response functions for thermal neutrons and 2.413 MeV neutrons were calculated with consideration of the measured edge effect by a modified NRESP Monte Carlo code. In both cases, the results showed good agreement with the measured pulse height distributions
Keywords
Monte Carlo methods; neutron detection and measurement; proportional counters; 2.413 MeV; 3He proportional counter; He; NRESP code; edge effect; neutron response functions; pulse height distributions; relative gas multiplication; thermal neutrons; Anodes; Area measurement; Counting circuits; Energy measurement; Energy resolution; Monte Carlo methods; Neutrons; Protons; Pulse measurements; Wire;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/23.322825
Filename
322825
Link To Document