Measurement of the neutron-induced fission cross sections of the transactinium isotopes relative to 235U from 4 to 11 MeV

Measurement of Fast Neutron Induced Fission Cross Sections of Americium-243 Relative to Uranium-235

“…;) (1-d)(l-a),( 5) where a : Microscopic fission cross section N : Number of fissionable atoms ¢1 : Neutron fluence at middle plane between two samples s : Correction factor for anisotropy of fission fragments d : Correction factor for difference in distance between target and two fission plates a : Correction factor for flux attenuation by backing plates and elastically scattered neutrons by chamber materials.By using Eqs. ( 2 ) -( 5 ), the fission cross section ratio becomes J. Nucl.…”