DLC-0091: ZZ COVFILS, 30-Group Covariance Library from ENDF/B-5 for Sensitivity Studies

OECD Nuclear Energy Agency / L'Agence pour l'énergie nucléaire

OECD-OCDE

[Program Service | Recent programs]

DLC-0091 ZZ-COVFILS. (Abstract last modified 24-JUL-1997)

ZZ COVFILS, 30-Group Covariance Library from ENDF/B-5 for Sensitivity Studies

Abstract Table of Contents:

OPERATING SYSTEM

OTHER RESTRICTIONS

1. NAME OR DESIGNATION OF PROGRAM - ZZ-COVFILS-2.I.

2. COMPUTER FOR WHICH PROGRAM IS DESIGNED AND OTHER MACHINE VERSION PACKAGES AVAILABLE -

To request or retrieve programs click on the one of the active versions below. A password and special authorization is required.

Explanation of the status codes.

Program-name Package-ID Status ZZ-COVFILS-2-I/LANL DLC-0091/01 Obsolete ZZ-COVFILS DLC-0091/02 Tested

Machines used: Package-ID Orig.Computer Test Computer DLC-0091/02 IBM 360 series PC Pentium 100

3. DESCRIPTION OF PROGRAM OR FUNCTION -
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  FORMAT: ENDB/F
  NUMBER OF GROUPS: 30-Group Covariance Library
  NUCLIDES: H-1, B-10, C, O-16, Cr, Fe, Ni, Cu, Pb,
  ORIGIN: ENDF/B-V
  WEIGHTING SPECTRUM:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
COVFILS is a 30-Group Covariance Library. It contains neutron cross sections, and their uncertainties and correlation in multigroup form. These data can be used, in conjunction with sensitivity information, to estimate the data-related uncertainty in calculated integral quantities such as radiation-damage or heating.

4. METHOD OF SOLUTION - COVFILS was obtained by processing evaluations from ENDF/B-V with ERRORR module of the NJOY nuclear data processing system (LA-9303-M, Vols. 1).The group structure is the Los Alamos 30-group structure which is listed in "File 1" of each multigroup data set in the library.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM -

6. TYPICAL RUNNING TIME -

DLC-0091/02:

A few seconds were required to execute the auxiliary retrieval program COVARD on a PC-DELL Optiplex GXM 5100 with base memory 640 Kbyte and extended memory of 32 MByte, equipped with a Pentium processor of 99 MHz.

7. UNUSUAL FEATURES OF THE PROGRAM -

8. RELATED AND AUXILIARY PROGRAMS - A short retrieval program, COVARD, and the result of a sample execution of the program are included in the package. COVARD reads the multigroup cross-section and covariance data in the condensed ENDF-like format of COVILS and transforms the data into engineering format (with zeros present explicitly and groups reordered to the conventional high-to-low order). This version of COVARD retrieves and prints the cross sections and the covariance matrix for a single "wired-in" reaction pair. The output resulting from executing COVARD, as written with no input required, is included in the code package.

9. STATUS
DLC-0091/01: 04-OCT-1988 Obsolete
DLC-0091/02: 24-JUL-1997 Tested at NEADB

10. REFERENCES  -
- D.W. Muir
  COVFILS-2: Neutron Data and Covariances for Sensitivity and
  Uncertainty Analysis,
  Fusion Techn. 10 (3), part 2B, 1461 (November 1986).
- D.W. Muir
  The Evaluation and Application of Redundant-Cross-Section
  Covariances,
  Los Alamos National Laboratory report LA-UR-86-3786-Rev (November   1986).
- J.W. Davidson, D.J. Dudziak, D.W. Muir, J. Stepanek, and C.E.
  Higgs
Recent Joint Developments in Cross-Section Uncertainty Analysis at Los Alamos and EIR.
Los Alamos National Laboratory report LA-UR-87-219 (January 1987).
DLC-0091/02:
- D.W. Muir and R.J. LaBauve:
  COVFILS - A 30-Group Covariance Library Based on ENDF/B-V
  LA-8733-MS (March 1981).

11. MACHINE REQUIREMENTS -

DLC-0091/02:

The filesize of the Covariance Library file is about 900 Kbyte.

12. PROGRAMMING LANGUAGE(S) USED -
DLC-0091/02: FORTRAN-IV

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED -

DLC-0091/02:

The auxiliary program COVARD was executed on a PC-DELL equipped with a Pentium processor of 99 MHz under MS-DOS. The Lahey system F77L/EM-32 compiler Version 5.20 and linker Version 5.10 were used.

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS -

15. NAME AND ESTABLISHMENT OF AUTHORS -
         D.W. Muir
         Applied Nuclear Science Group
         Los Alamos National Laboratory

16. MATERIAL AVAILABLE -
DLC-0091/02:
DLC0091_02.001    Information file of library ZZ-COVFILS            121 records
DLC0091_02.002    COVFILS Library file (ASCII)                    11299 records
DLC0091_02.003    Source code of auxiliary program COVARD           170 records
DLC0091_02.004    Original IBM JCL file                              17 records
DLC0091_02.005    Output file produced by the program COVARD        207 records
DLC0091_02.006    DOS file-names                                      5 records

17. CATEGORIES  -

- X.  Magnetic Fusion Research
- Z.  Data.

Keywords: COVARIANCE MATRICES, CROSS SECTIONS, DATA LIBRARY, FUSION REACTIONS, FUSION REACTORS, MULTIGROUP, NEUTRON CROSS SECTIONS, SCATTERING, SENSITIVITY ANALYSIS

Home - About Us - Work Areas - Data Bank - Publications - Press Room - List of acronyms - Search