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| Program name | Package id | Status | Status date |
|---|---|---|---|
| ERRORJ-2.3 | NEA-1676/07 | Tested | 16-JUN-2010 |
Machines used:
| Package ID | Orig. computer | Test computer |
|---|---|---|
| NEA-1676/07 | Linux-based PC | Linux-based PC,PC Windows |
ERRORJ produces multigroup covariance matrices from ENDF-6 format following mainly the methods of the ERRORR module in NJOY94.105.
Additional features in ERRORJ with respect to the NJOY94.105/ERRORR module:
expands processing for the covariance matrices of resolved and unresolved resonance parameters
processes average cosine of scattering angle and fission spectrum
treats cross-correlation between different materials and reactions
accepts input of multigroup constants with various forms (user input, GENDF, etc.)
outputs files with various formats through utility NJOYCOVX (COVERX format, correlation matrix, relative error and standard deviation)
uses a 1% sensitivity method for processing of resonance parameters
ERRORJ can process the JENDL-3.2 and 3.3 covariance matrices.
Additional features of the version 2 with respect to the previous version of ERRORJ:
Since the release of version 2, ERRORJ has been modified to increase its reliability and stability,
calculation of the correlation coefficients in the resonance region,
Option for high-speed calculation is implemented,
Perturbation amount is optimised in a sensitivity calculation,
Effect of the resonance self-shielding can be considered,
a compact covariance format (LCOMP=2) proposed by N. M. Larson can be read.
Additional features of the version 2.2.1 with respect to the previous version of ERRORJ:
Several routines were modified to reduce calculation time. The new one needs shorter calculation time (50-70%) than the old version without changing results.
In the U233 and Pu241 files of JENDL-3.3 an inconsistency between resonance parameters in MF=32 and those in MF=2 was corrected.
NEA-1676/07: ERRORJ-2.3
ERRORJ2.2.1 was modified to reduce the calculation time and to make it easy to incorporate ERRORJ into the NJOY code system.
In May 2010, two bugs were found in the FORTRAN source. This information was documented/reported to the author.
ERRORJ
expands processing for the covariances of resolved and unresolved resonance parameters
processes average cosine of scattering angle and fission spectrum
it accepts input of multigroup constants with various forms (user input, GENDF, etc)
outputs files with various formats through utility NJOYCOVX (COVERX format, correlation matrix, relative error and standard deviation)
uses a 1% sensitivity method for processing of resonance parameters
ERRORJ 2
calculation of correlation coefficients in the resonance region
"Preparation of a Covariance Processing System for the Evaluated Nuclear Data File, JENDL ", PNC PJ9037 97-001 (1997), PNC TJ9037 98-001 (1998), JNC TJ9440 99-003 (1999)
K. Kosako: Covariance Data processing Code: ERRORJ, Specialist's meeting of reactor constants, Tokai, February 22-23, 2001
R.E. MacFarlane and D.W. Muir: The NJOY Nuclear Data Processing System, Version 91. LA-12740-M (October 1994)
Keywords: ENDF, covariance matrices, cross sections, multigroup, sensitivity analysis.
