Experimental study of modification of neutron spectrum using filters

Filter effects for continuum thermal neutron beams were experimentally studied by means of an effective energy. Be, Bi and Pb were used as filter materials to examine the energy shift of the spectrum. It was found that the effective energy of a thermal neutron beam is easily lowered into a sub-therm...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 1996-07, Vol.377 (1), p.37-40
Main Authors: Kobayashi, Hisao, Matsumoto, Tetsuo, Matsubayashi, Masahito, Brenizer, Jack S., Lindsay, John T.
Format: Article
Language:English
Subjects:
Beam modification
Calculations
Continuum neutron beams
Effective energy
Filters (Be, Bi and Pb)
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Summary:Filter effects for continuum thermal neutron beams were experimentally studied by means of an effective energy. Be, Bi and Pb were used as filter materials to examine the energy shift of the spectrum. It was found that the effective energy of a thermal neutron beam is easily lowered into a sub-thermal region (down to 10 meV) by use of a filter system without any cooling system. The effectiveness and its applicability will be discussed in this study.
ISSN:0168-9002
1872-9576
DOI:10.1016/0168-9002(96)00112-X