Abstract
Status of the JENDL project after releasing the latest general purpose file JENDL-4.0 is described. By correcting errors and adding covariance data of JENDL-4.0, 38 files have been released as JENDL-4.0u. Development of next general purpose file JENDL-5 is also in progress. New evaluations have been performed for light nuclei, structural materials and fission products. Two special purpose files, JENDL-4.0/HE and JENDL/DDF-2015 were released in 2015. The former includes neutron induced reaction data for 130 nuclides in the energy region up to 200 MeV as well as proton induced reaction data for 133 nuclides. The latter is the decay data file of 3,237 nuclides from Z = 1 to 104 and neutron. Other two special purpose files of activation cross section and photonuclear data are under preparation and will be released soon.
Highlights
To address problems found in JENDL-4.0 without delay, their updated files have been released as JENDL-4.0u
After the release of JENDL-4.0, efforts to extend energy range up to 200 MeV have been made in order to meet needs from various accelerator applications such as the accelerator driven system (ADS)
The theory we adopted is the standard one proposed by Wigner and Eisenbud [3], except for the γ -ray channels which are treated by the Reich-Moore approximation [4]
Summary
The latest version of the general purpose file JENDL4.0 [1] was released in 2010 with improving fissionproduct and minor-actinide data as well as covariance data to meet needs of innovative reactors. After the release of JENDL-4.0, efforts to extend energy range up to 200 MeV have been made in order to meet needs from various accelerator applications such as the accelerator driven system (ADS). They were compiled with proton induced reaction data into JENDL-4.0/HE and released in 2015. Evaluation of nuclear data for the version of the general purpose file JENDL-5 is in progress.
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