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No longer distributed by NEA Data Bank

As of 21 February 2023, the US Department of Energy (DOE) has asserted jurisdiction over the SCALE codes, including all versions previously distributed by the NEA Data Bank. As a result, the Data Bank has ceased distribution of all versions of the SCALE package.

Licenses issued before 21 February 2023

The decision by the US DOE does not affect licenses that were already issued before 21 February 2023. These licenses remain valid. If you have any questions, please contact the Data Bank team.

Nuclear data

SCALE requires a complex suite of nuclear data processed using the AMPX software. Processed data for the latest libraries at the time of release are included in the package.

JEFF-3.3 data

Delivered by the Spanish Polytechnic University of Madrid (UPM), the Data Bank distributes JEFF-3.3 AMPX-processed data for SCALE under the package NEA-1928.

JEFF-3.1.1 data

Delivered by the Spanish Polytechnic University of Madrid (UPM), the Data Bank distributes JEFF-3.1.1 AMPX-processed data for SCALE under the package NEA-1927.

JEFF-4 test data

The Joint Evaluated Fission and Fusion (JEFF) project continues to develop cutting-edge nuclear data as part of the JEFF-4 project. Test libraries are processed at the Data Bank and distributed for testing purposes as part of the library development process. Please contact us for more information.


Citation (SCALE)

W. A. Wieselquist, R. A. Lefebvre, M. A. Jessee, Editors, "SCALE Code System", ORNL/TM-2005/39, Version 6.2.4 (April 2020)

Citation (AMPX)

D. Wiarda, M. E. Dunn, N. M. Greene, M. L. Williams, C. Celik, L. M. Petrie, "AMPX-6: A Modular Code System for Processing ENDF/B", ORNL/TM-2016/43, (April 2016)

A comprehensive validation of SCALE 6.2.4 for nuclear criticality safety, reactor physics, and radiation shielding applications is publicly available on the SCALE website, as well as on the DOE Office of Scientific and Technical Information (OSTI) website.

The titles of the volumes are:

  • V1. SCALE 6.2.4 Validation: Overview
  • V2. SCALE 6.2.4 Validation: Nuclear Criticality Safety
  • V3. SCALE 6.2.4 Validation: Reactor Physics
  • V4. SCALE 6.2.4 Validation: Radiation Shielding

Training materials

Oak Ridge National Laboratory regularly organises training courses through the NEA Data Bank. You can find more information on the currently scheduled events online here. If there are no courses available for the training that you are looking for, please contact the NEA.