Charge distribution studies in the epi-cadmium neutron induced fission of 233U

초록

Charge distributions have been carried out in the epi-cadmium neutron induced fission of 233U for the first time by measuring the fractional cumulative yields (FCY) and independent yields (IY) of various fission products. The method of an off-line y-ray spectrometric technique was used for the measurement. From the FCY values, the isobaric width parameter (sigma Z), most probable charge (ZP) and the charge polarization (AZEXPT) as a function of fragment mass were obtained. Similarly, from the IY values, isotopic width parameter (GA), the most probable mass (AP) and the elemental yields (YZ) of Sn, Sb, Te, I, Xe, Cs, Ba, La, Ce and Pr were determined by using a nonlinear fit. From the YZ values, the proton even-odd effect (delta p) was obtained for the first time. The present data were compared with the similar data in the thermal neutron induced fission of 233U and other actinides to examine the role of excitation energy on charge distribution parameters.

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