Independent isomeric yield ratios of fission products in the epi-cadmium neutron-induced fission of 245Cm

초록

Independent isomeric yield ratios (IR) of Sb-128,Sb-130,Sb-132, Te-131,Te-133, I-132,I-134, Xe-135 and Cs-138 in the epi-cadmium neutron-induced fission of Cm-245 have been measured for the first time by using an off-line gamma-ray spectrometric technique. The average energy of the epi-cadmium neutron spectrum (<E-n>) is 1.9 MeV. From the IR values, root mean square fragment angular momenta (J(RMS)) were deduced by using the spin dependent statistical model analysis. The IR and J(RMS) values of the fission products from the present work were compared with the literature data in the thermal neutron-induced fission of Cm-245 to examine the role of excitation energy. Effect of nuclear structure on J (RMS) value was also examined.

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