RSIC COMPUTER CODE PSR-030
1. NAME AND TITLE
VIXEN: A Code to Check Physical Consistency of Photon-Production Data in Revised ENDF Format.
VIXEN is a revision and extension of PHOXE, which it supersedes.
Los Alamos Scientific Laboratory, Los Alamos, New Mexico.
3. CODING LANGUAGE AND COMPUTER
Fortran IV; CDC 6600 and IBM 360/91/75.
4. NATURE OF PROBLEM SOLVED
VIXEN reads the cross-section and photon-production data files in ENDF format, checking them for format syntax, consistency, and physical realism. It is intended to help cross-section evaluators and reviewers produce an ENDF data set free of typographical, syntactical, and simple physics errors.
5. METHOD OF SOLUTION
The attempt has been made to include any reasonable check that can be automated and does not require interaction with any system outside the ENDF. Typical checks are (1) threshold energies vs Q values, (2) reasonable sign and magnitude of Q, (3) consistency and reasonableness of level and photon energies, and (4) total photon energy released vs reaction energetics. Suspected errors are flagged on the output listing immediately following the record in which they are detected. Also given on the output listing are computed quantities useful to the reviewer.
6. RESTRICTIONS OR LIMITATIONS
7. TYPICAL RUNNING TIME
The central processor time on a CDC 6600 computer for the silicon data is slightly less than 1 minute.
8. COMPUTER HARDWARE REQUIREMENTS
VIXEN is operable on the CDC 6600 computer (A) or the IBM 360/91/75 computer (B).
9. COMPUTER SOFTWARE REQUIREMENTS
A Fortran IV compiler is required. 42 K core memory, and two scratch files (disk or extended core storage) are required to run VIXEN.
D. J. Dudziak and J. M. Romero, "VIXEN: A Code to Check Physical Consistency of Photon-Production Data in Revised ENDF Format," LA-4739 (October 1971).
11. CONTENTS OF CODE PACKAGE
Included are the referenced document and one (1.2MB) DOS diskette which contains the source code and sample problem input and output.
12. DATE OF ABSTRACT
KEYWORD: GAMMA-RAY PRODUCTION CROSS SECTION PROCESSING