@techreport{oai:nifs-repository.repo.nii.ac.jp:00009860,
 author = {"Kawata,  S. and Kato,  S. and Kiyokawa,  S."},
 month = {Jun},
 note = {"We present the improved screening constants, with which the atomic energy levels for the finite temperature materials are obtained by the screened-Hydrogen model.  The improved screening constants are obtained for each of 34 materials. Each screening constants has the temperature dependence in order to realize the better reproducibility of the Hartree-Fock-Slater (HFS) energy levels. The improved screening constants provide the better results compared with More's screening constants: the unplovement from the results by More's screening constants is about 40% for n = 1 and about 20% for n = 2, in average over 34 materials. Here n is the principal quantum number."},
 title = {Screening Constants for Plasma},
 year = {1993}
}