The fission angular distributions and the angular dependence of fragment spins in ter-ms of preequilibrium fission model are calculated.The results show strong effects of preequil-ibrium fission on both angular distri...The fission angular distributions and the angular dependence of fragment spins in ter-ms of preequilibrium fission model are calculated.The results show strong effects of preequil-ibrium fission on both angular distributions and angular dependence of fragment spins.展开更多
We applied the four dimensional Langevin dynamical model to investigate the average spin of fission fragments. Elongation, neck thickness, asymmetry parameter, and the orientation degree of freedom（K coordinate）are ...We applied the four dimensional Langevin dynamical model to investigate the average spin of fission fragments. Elongation, neck thickness, asymmetry parameter, and the orientation degree of freedom（K coordinate）are the four dimensions of the dynamical model. We assume that the collective modes depend on the emission angle of the fragments, then different parameters related to the average spin of fission fragments are calculated dynamically.The angle dependence of average spin of fission fragments is investigated by calculating the spin at angles 90？and165？. Also, the obtained results based on the transition state model at scission point are presented. One can obtain better agreement between the results of the dynamical model and experimental data in comparison with the results of the transition state model.展开更多
文摘The fission angular distributions and the angular dependence of fragment spins in ter-ms of preequilibrium fission model are calculated.The results show strong effects of preequil-ibrium fission on both angular distributions and angular dependence of fragment spins.
文摘We applied the four dimensional Langevin dynamical model to investigate the average spin of fission fragments. Elongation, neck thickness, asymmetry parameter, and the orientation degree of freedom（K coordinate）are the four dimensions of the dynamical model. We assume that the collective modes depend on the emission angle of the fragments, then different parameters related to the average spin of fission fragments are calculated dynamically.The angle dependence of average spin of fission fragments is investigated by calculating the spin at angles 90？and165？. Also, the obtained results based on the transition state model at scission point are presented. One can obtain better agreement between the results of the dynamical model and experimental data in comparison with the results of the transition state model.
