Cross-section sensitivities, adjustments and all that

J.J. Wagschal, A. Ya'ari, Y. Yeivin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


It is demonstrated that the sensitivities approach to cross-section adjustment unavoidably leads to adjustment by least squares. The relative weight of integral with respect to differential data is introduced and the advantage of its use as a free parameter is discussed. As an illustration, the proposed procedure is applied to the ENDF/B-3 library and several Los Alamos critical assemblies.
Original languageEnglish
Title of host publicationAdvanced Reactors: Physics, Design and Economics
Subtitle of host publicationProceedings of the International Conference Held at Atlanta, Georgia, September 8–11, 1974
EditorsJ.M. Kallfelz, R.A. Karam
Place of PublicationOxford, UK
PublisherPergamon Press Ltd.
Pages536 - 50
Number of pages14
ISBN (Print)978-0-08-019610-7
StatePublished - 1975

Bibliographical note

adjustment by least squares;ENDF/B-3 library;Los Alamos critical assemblies;cross section sensitivities;cross section adjustment;


  • least squares approximations
  • nuclear reactor theory and design
  • sensitivity analysis


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