Nuclear decay database in fission product mass region*

Abstract

Abstract Accurate and reliable nuclear decay databases are essential for fundamental and applied nuclear research studies. However, decay data are not usually as accurate as expected and need improvement. Hence, a new Chinese nuclear decay database in the fission product mass region (A = 66−172) based on several major national evaluated data libraries has been developed under joint efforts in the CNDC working group. A total of 2358 nuclides have been included in this decay database. Two main data formats, namely ENSDF and ENDF, have been adopted. For the total mean β and γ energies, available data from total absorption gamma ray spectroscopy measurements have been adopted. For some nuclides without experimental measurements, theoretically calculated values have been added.