Theoretical investigation of absolute neutron detection
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Date
1967-09
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Australian Atomic Energy Commission
Abstract
A survey was made of the detection systems classified as 'flat response' in order to establish their use in high accuracy measurements of absolute neutron intensities for a wide range of neutron sources. Two detection systems involving neutron moderation in either graphite of an hydrogenous material were selected as having the most suitable characteristics. Numerical solutions of the neutron transport equations for these systems were computed to determine the conditions required to produce minimum variation of efficiency with energy. It was shown that, with the suitable choice of moderator composition and size, it should be possible to reduce these errors to less than one per cent over the energy range 100 eV to 4 MeV.
Description
Keywords
Neutron sources, Numerical solution, Accuracy, Neutron leakage
Citation
Dalton, A. W., & Lam, K. S. (1967). A theoretical investigation of absolute neutron detection (AAEC/TM403). Lucas Heights, NSW: Australian Atomic Energy Commission, Research Establishment.