Aggregate decay behavior of fission products in nuclear reactors

T. Yoshida, T. Tachibana, S. Okumura, S. Chiba

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

There exist a lot of important quantities which have their origin in aggregate behavior of unstable fission products (FP) in nuclear reactors. Decay heat is a typical example of importance. These quantities are calculated by summing up all the contributions coming from each unstable nucleus accumulated during reactor operation by using of FP decay data libraries. In their infancy, however, they were suffered from so-called the pandemonium problem. For decades, the difficulty caused by pandemonium problem has been circumvented by introduction of a β-decay theory. In recent years, the total absorption gamma-ray spectroscopy (TAGS) is saving the situation remarkably even though leaving some open problems.

Original languageEnglish
Title of host publicationProceedings of the 15th International Conference on Nuclear Reaction Mechanisms, NRM 2018
EditorsFrancesco Cerutti, Alfredo Ferrari, Toshihiko Kawano, Francesc Salvat-Pujol, Patrick Talou
PublisherCERN
Pages185-189
Number of pages5
ISBN (Electronic)9789290835196
Publication statusPublished - 2018
Event15th International Conference on Nuclear Reaction Mechanisms, NRM 2018 - Varenna, Italy
Duration: 2018 Jun 112018 Jun 15

Publication series

NameProceedings of the 15th International Conference on Nuclear Reaction Mechanisms, NRM 2018

Conference

Conference15th International Conference on Nuclear Reaction Mechanisms, NRM 2018
CountryItaly
CityVarenna
Period18/6/1118/6/15

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Nuclear and High Energy Physics

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  • Cite this

    Yoshida, T., Tachibana, T., Okumura, S., & Chiba, S. (2018). Aggregate decay behavior of fission products in nuclear reactors. In F. Cerutti, A. Ferrari, T. Kawano, F. Salvat-Pujol, & P. Talou (Eds.), Proceedings of the 15th International Conference on Nuclear Reaction Mechanisms, NRM 2018 (pp. 185-189). (Proceedings of the 15th International Conference on Nuclear Reaction Mechanisms, NRM 2018). CERN.