International Criticality Safety Benchmark Evaluation Project (ICSBEP)

ICSBEP Handbook

2018 edition and availability

IRPhE Handbook cover imageThe International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbook contains criticality safety benchmark specifications that have been derived from experiments that were performed at various critical facilities around the world. The benchmark specifications are intended for use by criticality and safety analysts as well as nuclear data evaluators to validate calculational techniques and data. The handbook is produced by the ICSBEP working group, under the aegis of the OECD Nuclear Energy Agency (NEA). While co-ordination and administration of the ICSBEP is undertaken by the NEA, each participating country is responsible for the administration, technical direction, and priorities of the project within their respective countries. Access to some of the information and data included in this handbook may be restricted; full conditions for access are available below.

The 2018 edition contains data evaluated criticality safety benchmark data in nine volumes that span over 70 000 pages. The handbook contains 567 evaluations with benchmark specifications for 4 916 critical, near-critical or subcritical configurations, 45 criticality alarm placement/shielding configurations with multiple dose points for each, and 215 configurations that have been categorised as fundamental physics measurements that are relevant to criticality safety applications.

Requesting the ICSBEP Handbook

Requests to obtain the DVD or online access should be made by completing the online form.

Access the ICSBEP Handbook online

If you have already been authorised access to the 2018 edition, you can access it through the link below:

Access the ICSBEP Handbook online  (password protected | reminder)


For questions, please contact .

Last reviewed: 21 January 2019