Japanese Evaluated
Nuclear Data
Library
An Evaluated Nuclear Data Library
The JENDL
(Japanese Evaluated Nuclear Data Library)
was released as the first version (JENDL-1) in 1977.
The latest version is JENDL-4.0 released in 2010 which contains neutron-induced
reaction data for 406 nuclides, in the neutron energy range from
10 -5 eV to 20 MeV.
Such data files as JENDL-4.0, which provide the data for various application fields,
are called " general purpose files".
They contain various kinds of data in the wide energy range.
We are making also JENDL special purpose files
which contains only the data needed in their application field.
JENDL mailing list
We will send update information of JENDL via e-mail.
If you would like to resister the mailing list, please send e-mail to jendl@jaea.go.jp with your information.
Name / Affiliation / E-mail Address
When your registration information is changed, please contact us.
General Purpose Files
Name |
Characteristics |
Released Year |
Number of Nuclides |
JENDL-1 |
The first Japanese evaluated nuclear data library.
It contains the data important for fast breeder reactors.
The neutron energy range is from 10-5 eV ~ 15 MeV.
| 1977 |
72 nuclides |
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JENDL-2 |
The maximum neutron energy is 20 MeV.
The data of structural material and heavy nuclides were revised.
The data are applicable to fast breeder reactors and shielding calculations.
| Dec 1982, revised in Mar 1984 |
84 nuclides |
|
|
The data of fission product nuclides are added. |
Dec 1985 |
181 nuclides |
|
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JENDL-3 |
The data in the MeV region were modified.
The data of important heavy nuclides were evaluated with the simultaneous evaluation.
The γ-ray production data were given to 59 nuclides.
| Dec 1989 |
171 nuclides |
|
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JENDL-3.1 |
The data of fission product nuclides were added. |
Dec 1990 |
324 nuclides |
|
|
JENDL-3.2 |
The data were largely improved.
JENDL-3.2 is applicable to fast breeder reactors, thermal reactors, shielding, fusion neutronics, etc.
| Jun 1994 |
340 nuclides |
|
|
JENDL-3.3 |
Data were improved for medium-heavy and actinide nuclides.
Double-differential cross sections (DDXs) and covariances were given to part of nuclides.
| May 2002 |
337 nuclides |
|
|
JENDL-4.0 |
The data were largely improved.
The nuclides more requested from users were added.
Second neutron and γ-ray data were enriched.
The nuclides include covariance data were added.
| May 2010 |
406 nuclides |
UpdataFileSite(BannerClick)
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Special Purpose Files
Name / Characteristics |
Released Year |
Number of Nuclides |
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2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
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