Abstract
Mercury is a promising candidate material for spallation neutron targets driven by high intensity proton accelerators. Validity of cross section data of mercury up to 20 MeV evaluated for JENDL-3.3 was investigated experimentally by means of both differential and integral approaches. Double differential neutron emission cross section (DDX) for incident neutron energy at 15 MeV was measured. Integral experiment for testing neutron transport and secondary gamma-ray production was conducted by using D-T and 252Cf neutron sources. As a result, general agreement between quantities derived from JENDL and the experimental results was confirmed. Some problems were still pointed out in the DDX data, cross section data in an incident neutron energy range approximately from 0.3 to 3 MeV and secondary gamma-ray production cross section.
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