28 January 2008.
Due to a bug in NJOY processing multigroup data the WIMS-D library based on ENDF/B-VII data
was incorrect. Only the Th-232 and Pa-231,233 data are affected.
- Corrected WIMSD libraries based on the ENDF/B-VII.0 data
- Plots were updated.
- The differences between the original and the corrected results for the
can be seen in E70_bug.lst
27 December 2006.
New WIMSD libraries were added based on the ENDF/B-VII.0
- Some programs, procedures and data files
- Plots were updated.
- The IAEA evaluated nuclear data files
were uploaded to the website.
- New list files were added to the
9 August 2005.
New WIMSD libraries were added based on the JEFF-3.1
- Several programs and procedures
were corrected or updated.
- Release of
XnWlup package version 3.0.
- IRPhE D2O benchmarks
added to the benchmarking sequence.
- Plottings were
for a project to update the multi-group nuclear data input library of
the WIMS code grew out of discussions between the participants, lecturers
and directors of the Joint IAEA/ICTP Workshop on Reactor Physics Calculations
for Applications in Nuclear Technology held at the ICTP, Trieste from
12 February to 16 March 1990.
This idea was in line with the relevant conclusions and recommendations
of the Technical Committee Meeting on In-core Fuel Management held by
the IAEA in Vienna, 4-7 December 1989.
The WIMS Library Update Project (WLUP) was organised by the Nuclear Data
Section of the IAEA. The "Jozef Stefan" Institute was supported
by the IAEA through a research contract to co-ordinate the technical issues
related with the project. It should be noted that except for the coordination
work and some IAEA fellowships the participants contributed to the project
on a voluntary basis.
The Sub-Committee on Nuclear Data Technology Transfer of the INDC, 19th
Meeting, 8-12 March 1993, strongly endorsed the continuation of the WIMS
Library Update Project in order to make available updated multi-group
cross sections in WIMS-D format for thermal research and power reactor
applications and stated that this project was also in line with the Agency's
objectives on technology transfer.
project was also recommended by the participants of the IAEA Consultants
Meeting on processing of nuclear data, held in 1993 and by the specialists
from developing countries who attended the IAEA/ICTP Workshop on Reactor
Calculations, Design and Safety in 1994.
In 1996 the Physics Division of the IAEA took the initiative to set up
the WLUP as a Co-ordinated Research Project (CRP). Such an organisational
scheme speeded up the work on completing the updated WIMS-D library and
allowed its extensive validation for thermal reactor lattice calculations.
The final stage of WLUP as a Co-ordinated Research Project (CRP) began
in December 1998, with research contracts or agreements for participants
from Argentine, Bangladesh, China, Cuba, India, Korea, Morocco, Poland,
Russia, Slovenia and the U.S. Research Co-ordination Meetings were held
in Vienna, Austria (1999), Bariloche, Argentina (2000) and Vienna, Austria
On completion of WLUP the following products are freely available for
libraries and the rest of products mentioned above can be retrieved from
the Downloads page or mailed on request from
IAEA Nuclear Data Services.
group cross section library: It includes more than 170 materials from
selected evaluated nuclear data files in an energy structure of 69 groups.
The library was extensively validated over 200 benchmark cases.
group cross section library:It includes more than 170 materials from
selected evaluated nuclear data files in an energy structure of 172
groups. The library was extensively validated over 200 benchmark cases.
with detailed documentation
- NJOY inputs
for evaluated nuclear data processing.
inputs for the WIMS-D code.
results for the libraries considered on WLUP.
codes and procedures to update and to maintain the WIMS-D library.
updates to extent the code capabilities.
For suggestions or further information please contact IAEA/NDS.