Neutron activation analysis using a modified absolute calibration method

作者:Huang Chun Kai*; Jiang Shiang Huei
来源:Journal of Radioanalytical and Nuclear Chemistry, 2017, 311(2): 1201-1207.
DOI:10.1007/s10967-016-5135-4

摘要

In this work a modified absolute calibration method of neutron activation analysis (NAA) was proposed. Reaction rates per atom of elements of interest were calculated by using MCNPX Monte Carlo code with a well established disk surface neutron source. Time dependency of the absolute reaction rate per atom produced during the irradiation was achieved by utilizing a well calibrated neutron monitoring system. Three activation foils with given compositions, namely, Au(1%)/Al, Mn(88%)/Ni and Cu(100%) and a SS304 sample were measured to test the adequacy and performance of this proposed modified absolute calibration method.