In this work, we present new experimental data on mass distribution of fission fragments from 241Am proton-induced fission at 660 MeV measured at the LNR Phasotron (JINR). The systematic analysis of several measured fragment mass distributions from different fission reactions available in the literature is also presented. The proton-induced fission of 241Am, 237Np and 238U at 26.5, 62.9 and 660 MeV was studied. The proton-induced fission of 232Th was studied at 26.5, 62.9 and 190 MeV. The fission of 208Pb also by a proton was investigated at 190, 500 and 1000 MeV. The fission of 197Au was studied for 190 and 800 MeV protons. Bremsstrahlung reactions with maximum photon energies of 50 and 3500 MeV were studied for 232Th and 238U. The framework of the Random Neck Rupture Model was applied in the analysis. The roles of the neutron excess and of the so called fissility parameter were also investigated.
@article{arxiv.1608.07501,
title = {Systematic study of actinide and pre-actinide fission modes},
author = {E. Andrade-II and G. S. Karapetyan and A. Deppman and J. L. Bernal-Castillo and A. R. Balabekyan and N. A. Demekhina and J. Adam and F. Garcia and F. Guzmán},
journal= {arXiv preprint arXiv:1608.07501},
year = {2016}
}