NEA-1730 ZZ-COV-15GROUP-2006.

1. NAME OR DESIGNATION:  ZZ-COV-15GROUP-2006.

3. DESCRIPTION

ZZ-COV-15GROUP is a 15-group cross section covariance matrix library presenting a general overview of the presently available data.
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NUMBER OF GROUPS: 15 neutron.
NUCLIDES: H-1, Li-6, Li-7, Be-9, B-10, C-12, N-14, O-16, F-19, Na-23, Al-27, Si-28, Si-nat, Cr-52, Mn-55, Fe-56, Fe-57, Ni-58, Zr-90, Pb-nat, Pb-206, Pb-207, Pb-208, Th-232, U-235, U-238, Np-237, Pu-239, Pu-240, Pu-241, Am-241.
ORIGIN: ENDF/B-V, /B-VI.8, JENDL-3.3, JEFF-3.0, IRDF-2002 and IAEA
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Version 02 differs from version 01 in the following features:
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The input files (original BOXER format covariance libraries and ANGELO inputs instructions) have been included thus allowing to convert the covariance matrices to a user-defined energy group structure. Examples of output for the 15 group structure are provided.
The code LAMBDA for verification of mathematical properties of the matrices (e. g. eigenvalues) is also included. This verification is highly recommended before using any covariance matrices.
  
Version 03 differs from version 02 in the following features:
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The library file covfils2.lib was corrected (energy group structure was provided only for one isotope), as well as the corresponding test case outputs.

10. REFERENCES

The following reference describes the use of the library:
- G. Aliberti, G. Palmiotti, M. Salvatores, T.K. Kim, T.A. Taiwo, M. Anitescu, I. Kodeli, E. Sartori, J.C. Bosq, J. Tommasi:
Nuclear data sensitivity, uncertainty and target accuracy assessment for future nuclear systems
Annals of Nuclear Energy, Volume 33, Issue 8, May 2006, Pages 700-733
  
The covariance matrices were taken from the following sources:
- R. E. MacFarlane, D. W. Muir:
The NJOY Nuclear Data Processing System Version 97
Manual LA-12740-M (1994).
- I. Kodeli, E. Sartori:
Neutron Cross-section Covariance Data in Multigroup Form and Procedure for Interpolation to Users' Group Structures for Uncertainty Analysis Applications
Proc. Of PHYSOR'90, Int. Conf. on the Physics of Reactors: Operation, Design and Computation, Marseille, PI-11 - PI-20, 23-27 April 1990, Marseille;
NEA computer package NEA-1264/03 - /05 (ZZ-VITAMIN-J/COVA)
- D. W. Muir,
The Evaluation and Application of Redundant Cross-Section Covariances,
LA-UR-86-3786-Rev (Nov. 1986)
NEA computer package DLC-0091 (ZZ-COVFILS)
- D.W. Muir
COVFILS-2: Neutron Data and Covariances for Sensitivity and Uncertainty Analysis
Fusion Techn. 10 (3), part 2B, 1461 (Nov. 1986)
NEA computer package DLC-0137 (ZZ-COVFILS-2)
- I. Kodeli
VITAMIN-J/COVA/EFF-3 Cross-Section Covariance Matrix Library and its Use to Analyse Benchmark Experiments in SINBAD Database
Fus. Eng. Design 75-79 (2005) 1021-1025
NEA Package NEA-1264/05 (ZZ-VITA.-J/COVA/EFF3)
- G. Chiba
ERRORJ- Covariance Processing Code System for JENDL, Ver. 2, JNC TN9520, 2003-008, Sept. 2003.
- R. Paviotti et al.
International Reactor Dosimetry File IRDF-2002, An IAEA Nuclear Data Section Data Development Project

- I. Kodeli:
NEA-1730: ZZ-COV-15GROUP-2006 - Covariance Data Review (Oct. 2006)

15. NAME AND ESTABLISHMENT OF AUTHORS

Ivo Kodeli
IAEA/NEA Databank
Le Seine St Germain
12, boulevard des Iles
92130 Issy-les-Moulineaux
France

ZZ-COV-15GROUP.pdf  Short description of the library
ZZ-COV-15g.htm  List of cross-section covariance data with links to the
processed matrices
\angelo             Code ANGELO for the interpolation of covariance data
\eff3               15-group covariances from JEFF-3.0 evaluation
\endfb5             15-group covariances from ENDF/B-V evaluation
\endfb6.8           15-group covariances from ENDF/B-VI.8 evaluation
\iaea-2006          15-group covariances from IAEA-2006 evaluation
\irdf02             15-group covariances from IRDF-2002 evaluation
\jendl3.3           15-group covariances from JENDL-3.3 evaluation