title: Decay Chain Deduction of Uranium Fission Products.
abstract: Delayed gamma spectrum is the fingerprint of uranium materials in arms control verification technology. The decay chain is simplified into basic state linear chain and excitation state linear chain to calculate and analyze the delayed gamma spectra of fission products. Formulas of the changing rule for nuclide number before and after zero-time are deduced. The C program for calculating the delayed gamma ray spectra data is constructed, and related experiments are conducted to verify this theory. Through analysis of the delayed gamma counts of several nuclides, the calculated results are found to be consistent with experimental values.
authors.affiliation: *Xi'an Research Institute of Hi-Tech, Xi'an 710025, China; **High-Tech Institute of Baoji, Baoji 721000, China.
authors.forename: Huiping
authors.initials: H
authors.lastname: Guo
authors.forename: Chenyang
authors.initials: C
authors.lastname: Tian
authors.forename: Xiaotian
authors.initials: X
authors.lastname: Wang
authors.forename: Ning
authors.initials: N
authors.lastname: Lv
authors.forename: Meng
authors.initials: M
authors.lastname: Ma
authors.forename: Yingguang
authors.initials: Y
authors.lastname: Wei
mesh_terms: D000465:Algorithms; D006207:Half-Life; D008422:Materials Testing / Q000379:methods*; D009680:Nuclear Fission; D011874:Radiometry / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012984:Software; D014501:Uranium / Q000032:analysis* / Q000737:chemistry* / Q000528:radiation effects
chemical_list: D014501:Uranium