@inproceedings{916882d10f8040e89f42bf8e901da5b8,
title = "New capabilities for processing covariance data in resonance region",
abstract = "The AMPX [1] code system is a modular system of FORTRAN computer programs that relate to nuclear analysis with a primary emphasis on tasks associated with the production and use of multi group and continuous energy cross sections. The module PUFF-III within this code system handles the creation of multi group covariance data from ENDF information. The resulting covariances are saved in COVERX format [2]. We recently expanded the capabilities of PUFF-III to include full handling of covariance data in the resonance region (resolved as well as unresolved). The new program handles all resonance covariance formats in File 32 except for the long-range covariance sub sections. The new program has been named PUFF-IV. To our knowledge, PUFF-IV is the first processing code that can address both the new ENDF format for resolved resonance parameters and the new ENDF {"}compact{"} covariance format. The existing code base was rewritten in Fortran 90 to allow for a more modular design. Results are identical between the new and old versions within rounding errors, where applicable. Automatic test cases have been added to ensure that consistent results are generated across computer systems.",
keywords = "AMPX, Covariance data, Resonance region",
author = "D. Wiarda and Dunn, {M. E.} and Greene, {N. M.} and Larson, {N. M.} and Leal, {L. C.}",
year = "2006",
language = "English",
isbn = "0894486977",
series = "PHYSOR-2006 - American Nuclear Society's Topical Meeting on Reactor Physics",
booktitle = "PHYSOR-2006 - American Nuclear Society's Topical Meeting on Reactor Physics",
note = "PHYSOR-2006 - American Nuclear Society's Topical Meeting on Reactor Physics ; Conference date: 10-09-2006 Through 14-09-2006",
}