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

Independent isomeric yield ratios (IR) of 128,130,132 Sb, 131,133 Te, 132,134 I, 135 Xe and 138 Cs in the epi-cadmium neutron-induced fission of 245 Cm have been measured for the first tim e 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 245 Cm to examine the role of excitation energy. Effect of nuclear structure on J RMS value was also examined.