Radiative neutron capture in I___ß

[摘要] The prompt gamma rays and induced activity from the reaction I127(n,r)I128 are studied for neutron energy of 0.2 Mev to 1.91 Mev using a NaI(Tl) crstal both as target and detector. The relative cross sections calculated from both the prompt gamma ray and the induced activity data show good agreement. the cross section follows the law for netron energies less than a bout 0.5 Mev and becomes greater then the theoretical value at higher neutron energies, indicating that neutrons with [?] may become important. the agreement with the data of Martin and Tasschek is fair. The corrected pulse height spectrs from the prompt gamma rays of energies 1.1 to 7.1 Mev show no structure.

[发布机构] Rice University