Neutron Induced Fission Cross-Sections of 240Pu and 243Am in the Energy Range 1 - 200 MeV

Abstract During the last several years, the measurements of neutron-induced fission cross-sections of actinides and stable isotopes have been performed at the GNEIS facility. At present moment, the new series of experiments for measurements of fission cross-section ratios relative to 235 U have been began for 240 Pu, 243 Am and nat W in a wide energy range of incident neutrons from 1 MeV to 200 MeV. The measurements were performed using the multiplate ionization chamber and time-of-flight technique. The first results of this measurement in case of 240 Pu and 243 Am are presented in comparison with the other data.