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Ratio tests of dosimetry cross-sections for 93Nb(n,2n)92mNb and 197Au(n,2n)196Au to 27Al(n,α)24Na reactions

S. Iwasaki - No affiliation found

1991/01/01 Full-length article DOI: 10.1016/0149-1970(91)90037-P Journal: Progress in Nuclear Energy

Abstract:

AbstractCross-section ratios of reaction 93Nb(n,2n)92mNb and 197Au(n,2n)196Au to the standard reaction 27Al(n,α)24Na have been measured in order to test the recently compiled dosimetry files: JENDL Dosimetry File and International Reactor Dosimetry File 1990 (IRDF-90). The experimental results for both reactions were consistent with the calculated ones based on IRDF-90 except for the 93Nb(n,2n)92mNb above 19 MeV.Both reactions, especially 93Nb(n,2n)92mNb, were recommended as new neutron monitors above 12 MeV because of their favorable characteristics from the decay-property and cross-section viewpoints.