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Complete contents of the JEFF-3.1 evaluated data library

The Joint Evaluated Fission and Fusion File (JEFF-3.1) is an evaluated library produced via an international collaboration of Data Bank member countries co-ordinated under the auspices of the NEA Data Bank. The general purpose library contains neutron reaction data, incident proton data and thermal neutron scattering law data. JEFF-3.1 contains special purpose files with radioactive decay data, activation data and fission yields data.
JEFF-3.1 combines the efforts of the JEFF and EFF/EAF working groups who have contributed to this combined fission and fusion file. General information on the JEFF and EFF/EAF projects is also available on the NEA website.


NEW RELEASE!

  • JEFF3.1.1 Radiactive Decay Data library, (41 Mb)

  • JEFF3.1.1 Radiactive Decay Data library (by isotope, 45 Mb tar file)

  • JEFF3.1.1 Radiactive Decay Data library (zipped lib, 6 Mb)

    30 November 2007



    • Feedback on JEFF-3.1


    The complete JEFF-3.1 Library suite is in ENDF-6 format and contains

    General Purpose files (links to contents pages):
  • Incident Neutron Data for 381 materials from 1-H-1 to 100-Fm-255.
  • Thermal Scattering Data for 9 materials.
  • Incident Proton Data for 26 materials.

    • Special Purpose files (links to data source):
  • Radioactive decay data (39 Mb) for 3852 isotopes. Contents list available in Contents_JEFF31RDD.pdf.
  • Neutron Induced Fission Yields Library (4.1 Mb)
  • Spontaneous Fission Yields Library (0.4 Mb)
  • Activation Library (110 Mb). Documentation available in JEFF-3A.pdf.


    • The files can be obtained in a number of ways:

    1. Individual isotopes in a single file. Zipped data below:

    Gzipped tar-file with individual neutron data JEFF31N_INDIV.tar.gz
    Gzipped tar-file with proton data JEFF31P_INDIV.tar.gz
    Gzipped tar-file with thermal scattering data (format corr. 30 June) JEFF31TS_INDIV.tar.gz


    2. As a single ENDF tape containing all isotopic data. Zipped data below:


    File contents File name File size CHECKR FIZCON PSYCHE
    Zipped tape of neutron data JEFF31N.gz ~57 Mb JEFF31N.CHK JEFF31N.FIZ JEFF31N.PSY
    Zipped tape of proton data JEFF31P.gz ~5.7 Mb JEFF31P.CHK JEFF31P.FIZ JEFF31P.PSY
    Zipped tape of thermal scattering law data JEFF31TS.gz ~9.7 Mb JEFF31TS.CHK JEFF31TS.FIZ JEFF31TS.PSY
    Zipped radioactive decay data JEFF31RDD.gz ~5.6 Mb JEFF31RDD.CHK JEFF31RDD.FIZ JEFF31RDD.PSY
    Zipped neutron induced fission yield data JEFF31NFY.gz ~1.1 Mb JEFF31NFY.CHK JEFF31NFY.FIZ JEFF31NFY.PSY
    Zipped spontaneous fission yield data JEFF31SFY.gz ~96 kb JEFF31SFY.CHK JEFF31SFY.FIZ JEFF31SFY.PSY
    Zipped activation data JEFF31A.gz ~35 Mb JEFF31A.CHK JEFF31A.FIZ JEFF31A.PSY

    3. Or obtained on CD-ROM by sending an e-mail request.


    This page was last updated on September 5, 2005

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