Neutron/gamma discrimination in a lithium-6 glass scintillator in an MWD tool

An enriched lithium-6 glass scintillator detector used to detect neutrons in a MWD (measurement-while-drilling) environment has been modeled using Monte Carlo methods. Model results were compared to experimental measurements. The objective of the comparison was to understand the spectra of both neut...

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Bibliographic Details
Published inConference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference pp. 1113 - 1117 vol.2
Main Authors Schneider, D.M., Hubner, B.G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1991
Subjects
Extrapolation
Gamma ray detection
Gamma ray detectors
Glass
Interpolation
Monte Carlo methods
Neutrons
Shape
Strips
Thickness measurement
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Summary:An enriched lithium-6 glass scintillator detector used to detect neutrons in a MWD (measurement-while-drilling) environment has been modeled using Monte Carlo methods. Model results were compared to experimental measurements. The objective of the comparison was to understand the spectra of both neutrons and background gammas in order to efficiently separate their respective contributions to detected spectra. Effects due to changes in the size and shape of the scintillator were also examined. It is concluded that excellent gamma-ray discrimination can be achieved for an enriched lithium-6 detector using spectral stripping methods. As a result, this particular detector is an excellent choice for neutron detection in an MWD environment.< >
ISBN:0780305132
9780780305137
DOI:10.1109/NSSMIC.1991.259096