Ranking the importance of nuclear reactions for activation and transmutation events

Research output: Contribution to journalArticle

Abstract

Pathways-reduced analysis is one of the techniques used by the FISPACT-II nuclear activation and transmutation software to study the sensitivity of the computed inventories to uncertainties in reaction cross sections. Although deciding which pathways are most important is very helpful in for example determining which nuclear data would benefit from further refinement, pathways-reduced analysis need not necessarily define the most critical reaction, since one reaction may contribute to several different pathways. This work examines three different techniques for ranking reactions in their order of importance in determining the final inventory, comparing the pathways-based metric (PBM), the direct method, and a method based on the Pearson correlation coefficient. Reasons why the PBM is to be preferred are presented.

Bibliographical metadata

Original languageEnglish
Pages (from-to)561-574
Number of pages14
JournalNuclear Science and Engineering
Volume184
Issue number4
Early online date13 May 2017
DOIs
StatePublished - 2017