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Investigation of gamma-ray sensitivity of neutron detectors based on thin converter films

Khaplanov, Anton LU ; Piscitelli, F. ; Buffet, J-C ; Clergeau, J-F ; Correa, J. ; van Esch, P. ; Ferraton, M. ; Guerard, B. and Hall-Wilton, Richard LU (2013) In Journal of Instrumentation 8.
Abstract
Currently, many detector technologies for thermal neutron detection are in development in order to lower the demand for the rare He-3 gas. Gas detectors with solid thin film neutron converters readout by gas proportional counter method have been proposed as an appropriate choice for applications where large area coverage is necessary. In this paper, we investigate the probability for gamma-rays to generate a false count in a neutron measurement. Simulated results are compared to measurement with B-10 thin film prototypes and a He-3 detector. It is demonstrated that equal gamma-ray rejection to that of He-3 tubes is achieved with the new technology. The arguments and results presented here are also applicable to gas detectors with... (More)
Currently, many detector technologies for thermal neutron detection are in development in order to lower the demand for the rare He-3 gas. Gas detectors with solid thin film neutron converters readout by gas proportional counter method have been proposed as an appropriate choice for applications where large area coverage is necessary. In this paper, we investigate the probability for gamma-rays to generate a false count in a neutron measurement. Simulated results are compared to measurement with B-10 thin film prototypes and a He-3 detector. It is demonstrated that equal gamma-ray rejection to that of He-3 tubes is achieved with the new technology. The arguments and results presented here are also applicable to gas detectors with converters other than solid B-10 layers, such as Li-6 layers and (BF3)-B-10 gas. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
keywords
Detector modelling and simulations I (interaction of radiation with, fast neutrons), Gaseous detectors, thermal, Neutron detectors (cold, interaction of photons with matter, matter, interaction of hadrons with, etc)
in
Journal of Instrumentation
volume
8
article number
P10025
publisher
IOP Publishing
external identifiers
  • wos:000326930900049
  • scopus:84887094667
ISSN
1748-0221
DOI
10.1088/1748-0221/8/10/P10025
language
English
LU publication?
yes
id
4df4157e-b1c7-4a06-8372-81052ab43c1f (old id 4275285)
date added to LUP
2016-04-01 13:43:29
date last changed
2019-09-11 02:04:32
@article{4df4157e-b1c7-4a06-8372-81052ab43c1f,
  abstract     = {Currently, many detector technologies for thermal neutron detection are in development in order to lower the demand for the rare He-3 gas. Gas detectors with solid thin film neutron converters readout by gas proportional counter method have been proposed as an appropriate choice for applications where large area coverage is necessary. In this paper, we investigate the probability for gamma-rays to generate a false count in a neutron measurement. Simulated results are compared to measurement with B-10 thin film prototypes and a He-3 detector. It is demonstrated that equal gamma-ray rejection to that of He-3 tubes is achieved with the new technology. The arguments and results presented here are also applicable to gas detectors with converters other than solid B-10 layers, such as Li-6 layers and (BF3)-B-10 gas.},
  author       = {Khaplanov, Anton and Piscitelli, F. and Buffet, J-C and Clergeau, J-F and Correa, J. and van Esch, P. and Ferraton, M. and Guerard, B. and Hall-Wilton, Richard},
  issn         = {1748-0221},
  language     = {eng},
  publisher    = {IOP Publishing},
  series       = {Journal of Instrumentation},
  title        = {Investigation of gamma-ray sensitivity of neutron detectors based on thin converter films},
  url          = {http://dx.doi.org/10.1088/1748-0221/8/10/P10025},
  doi          = {10.1088/1748-0221/8/10/P10025},
  volume       = {8},
  year         = {2013},
}