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Title: Few Group Collapsing of Covariance Matrix Data Based on a Conservation Principle

Journal Article · · Nuclear Data Sheets

A new algorithm for a rigorous collapsing of covariance data is proposed, derived, implemented, and tested. The method is based on a conservation principle that allows the uncertainty calculated in a fine group energy structure for a specific integral parameter, using as weights the associated sensitivity coefficients, to be preserved at a broad energy group structure.

Research Organization:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
DOE - NE
DOE Contract Number:
DE-AC07-99ID-13727
OSTI ID:
948143
Report Number(s):
INL/JOU-08-14488; NDTSBA; TRN: US0901562
Journal Information:
Nuclear Data Sheets, Vol. 109, Issue 12; ISSN 0090-3752
Country of Publication:
United States
Language:
English