Estimation of beta- and gamma-ray spectra for JENDL FP decay data file

Jun Ichi Katakura, Tadashi Yoshida, Kazuhiro Oyamatsu, Takahiro Tachibana

Research output: Contribution to journalArticle

7 Citations (Scopus)


Beta- and gamma-ray spectra of fission product nuclides were estimated by a theoretical model for the nuclides having no or incompletely measured spectral data. The estimation was performed with Gross Theory of Beta Decay. The estimated spectra were so stored in JENDL FP Decay Data File 2000 as to keep the consistency between the average decay energy value derived from the spectrum and that used for decay heat analysis. The JENDL spectra of FP nuclides and the aggregate beta- and gamma-ray spectra of fission product nuclides calculated using the JENDL spectra showed good agreement with measured data.

Original languageEnglish
Pages (from-to)470-476
Number of pages7
JournalJournal of Nuclear Science and Technology
Issue number7
Publication statusPublished - 2001 Jul



  • Beta decay
  • Beta spectra
  • Comparative evaluations
  • Decay data
  • Fission products
  • Gamma spectra
  • Measured values
  • Theoretical estimation

ASJC Scopus subject areas

  • Nuclear Energy and Engineering

Cite this