Extended covariance data formats for the ENDF/B-VI differential data evaluation [electronic resource].
- Published
- Oak Ridge, Tenn. : Oak Ridge National Laboratory, 1988.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- Pages: 10 : digital, PDF file
- Additional Creators
- Oak Ridge National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- The ENDF/B-V included cross section covariance data, but covariances could not be encoded for all the important data types. New ENDF-6 covariance formats are outlined including those for cross-file (MF) covariances, resonance parameters over the whole range, and secondary energy and angle distributions. One ''late entry'' format encodes covariance data for cross sections that are output from model or fitting codes in terms of the model parameter covariance matrix and the tabulated derivatives of cross sections with respect to the model parameters. Another new format yields multigroup cross section variances that increase as the group width decreases. When evaluators use the new formats, the files can be processed and used for improved uncertainty propagation and data combination. 22 refs.
- Report Numbers
- E 1.99:conf-8809156-1
conf-8809156-1 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
01/01/1988.
"conf-8809156-1"
"DE89000649"
Specialists' meeting on the application of critical experiments and operating data to core design via formal methods of cross section data adjustment, Jackson Hole, WY, USA, 23 Sep 1988.
Peelle, R.W.; Muir, D.W. - Funding Information
- AC05-84OR21400
W-7405-ENG-36
View MARC record | catkey: 14669588