Mass yield distribution in the fission of 244Cm induced by a spectrum of epi-cadmium to fast neutron

초록

The cumulative yields of various fission products within the mass range of 83-119 and 123-158 as well as independent yields of few fission products in the fission of Cm-244 induced by a spectrum of epi-cadmium to fast neutron have been measured by using an off-line.-ray spectrometric technique. Charge distribution correction was applied on the cumulative yields to obtain the post-neutron mass yields of fission products. The peak-to-valley (P/V) ratio, the full width at tenth maximum (FWTM) of light and heavy mass wing, the average light mass (< A(L) >) and heavy mass (< A(H) >) as well as the average number of neutrons (< nu >) were obtained from the mass yield distribution. The mass yield data in between the Cm-244(n, f) and Cm-245(n(th), f) reactions were compared to examine the role of small difference of excitation energy on P/V ratio and nuclear structure effect as well as on the standard I and standard II asymmetric modes of fission.

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