Database for ICSBEP (DICE)
Screenshot of DICE. Image: NEA.

The International Criticality Safety Benchmark Evaluation Project (ICSBEP) released the first version of the Database for the International Handbook of Evaluated Criticality Safety Benchmark Experiments (DICE) in 2001. This database and corresponding user interface is included in the ICSBEP Handbook allowing easier access to information. Selected information from each configuration was entered into DICE, providing a synthetic description of the experiments. These include geometry, fuel composition, moderation and reflection conditions and spectrum characteristics.

DICE accomplishes two main objectives:

  1. It provides a summary description of each experimental configuration where the main characteristics of the experiments are displayed in a uniform format.
  2. It allows users to search the handbook for experimental configurations that satisfy their unique input criteria.

DICE provides the user with access to several categories of data, including:

  • Detailed 1-group neutron balance data for each configuration with individual isotope contributions in different regions of the geometry.
  • Flux and other reaction rates spectra in a 299-group energy scheme. Plotting capabilities were implemented into DICE allowing the user to compare the spectra of selected configurations in the original fine energy structure or on any user-defined broader energy structure.
  • Sensitivity coefficients (percent changes of k-effective due to elementary change of basic nuclear data) for the major nuclides and nuclear processes in a 30-group and 238-group energy structure. These data are currently only available for about 80% of experimental configurations.

DICE is still in the development phase and is subject to data entry errors and omissions. The International Handbook remains the primary source of criticality safety benchmark data.


Launch DICE
Requires Java 8.



External Publications:

Ali Nouri, Pierre Nagel, J. Blair Briggs & Tatiana Ivanova (2003) DICE: Database for the International Criticality Safety Benchmark Evaluation Program Handbook, Nuclear Science and Engineering, 145:1, 11-19, DOI: 10.13182/NSE03-15

Hill, I., Gulliford, J., Soppera, N., & Bossant, M. (2015). DICE 2013. New capabilities and data (No. JAEA-CONF--2014-003).

Download files

To learn more about DICE, consult the user's manual ( DICE user's manual  2.03 MB) or watch the following demonstration videos:

Search Demonstration:


 Trends plots:


Correlation matrices:



Database may contain data entry errors and omissions, the Handbook remains the primary source of reactor physics benchmark data. Please send any bugs or suggestions to