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KMID : 0364919760010010001
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Journal of Radiation Protection and Research
1976 Volume.1 No. 1 p.1 ~ p.9
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Fast Neutron Dosimetery Criticality Accidents
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Ro Sung-Gy
Yook Chong-Chul
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Abstract
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A suggestion has been made for neutron dosimetric techniques using activation and threshold detectors in criticality, accidents. Neutron dosimetrical parameters, namely, the fission spectrum-averaged cross-sections of some threshold reactions and fluence-to-dose conversioa factors have been calculated by the use of an electronic computer.
It appears that detectors having comparatively high threshold energy give more fine information on spectral deformation in, criticality accidents, while detectors with low threshold energy are of usefulness for measuring fast neutron fluence regardless of fissioning types. Unexpectedly it is found that the fission spectrum-averaged cross sections of the ^(32)S(n,p)^(32)P reaction is not sensitive to analytical forms of fission neutron spectrum: the modified Cranberg and Maxwellian forms. In addition, the fluence-to-dose conversion factors seem to be insensitive to both spectral functions and fissioning types.
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KEYWORD
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