Steady neutron source measurement method for Σa and Σs in geological samples

An improved experimental method, using a steady neutron source in a moderating medium, has been developed to determine thermal neutron absorption and scattering cross sections for bulk geological media using discrete samples. The system design has been optimized and experimental results have been be...

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Bibliographic Details
Published inApplied radiation and isotopes Vol. 53; no. 4; pp. 603 - 616
Main Authors Sood, A, Gardner, R.P, Gray, T.K
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.11.2000
Subjects
Cross section measurement
Geological samples
Steady neutron source
Cross section measurement
Geological samples
Steady neutron source
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Summary:An improved experimental method, using a steady neutron source in a moderating medium, has been developed to determine thermal neutron absorption and scattering cross sections for bulk geological media using discrete samples. The system design has been optimized and experimental results have been benchmarked using Monte Carlo simulation. Studies have been performed to improve the measurement sensitivity and reproducibility over previous designs. A semi-empirical model has been developed for determining both absorption and scattering cross sections of the sample.
ISSN:0969-8043
1872-9800
DOI:10.1016/S0969-8043(00)00235-9