Measurements of neutron induced fission cross-section for ~242mAm from 0.003 eV to 10 keV using lead slowing-down spectrometer, thermal neutron facility and time-of-flight method

摘要

The neutron-induced fission cross-sections of ~242mAm were measured relative to that of ~235U from 0.003 eV to 10keV with a back-to-back type double fission chamber. These mea- surements were performed from 0.03 eV to 10 keV, at 0.025 eV and from 0.003 to 35 eV using the Kyoto University lead slowing-down spectrometer, the thermal neutron facility of Kyoto University Reactor and the time-of-flight method, respectively. The results were compared With both the evaluated data of JENDL-3.2, ENDF/B-VI and JEF-2.2, and the existing Experimental data. The validity of the cross-section in the files was discussed through the Comparison.