John BESS, United States
|Member(s):||All NEA member countries|
Under the NEA Statute
International Atomic Energy Agency (IAEA)|
|Date of creation:||30 September 2000|
|End of mandate:||30 June 2021|
Mandate (Document reference):
Mandate (Document extract):
Extract from document [NEA/NSC/WPNCS/DOC(2019)9]
Under the direction of the Working Party on Nuclear Criticality Safety (WPNCS), the Technical Review Group will coordinate the programme of the International Criticality Safety Benchmark Evaluation Project (ICSBEP) and the development of the ICSBEP handbook and database. These comprise an evaluated set of benchmark specifications derived from experiments performed at various nuclear critical facilities around the world. The benchmark specifications are intended for use by criticality safety engineers to validate calculational techniques used to establish minimum subcritical margins for safe operations with fissile material. Close links will also be maintained with the technical review group for the Shielding Integral Benchmark Archive and Database (SINBAD).
The Technical Review Group will also develop a database tool (DICE) to facilitate user access to the ICSBEP benchmarks.
The main objective of the ICSBEP is to provide the nuclear community with an evaluated set of benchmark specifications by collecting criticality experiment data from the nuclear criticality laboratories, worldwide. More specifically the objectives are as follows:
identify and evaluate a comprehensive set of critical and sub-critical benchmark experiment data;
The Technical Review Group will closely co-ordinate its work with other subsidiary bodies of the Nuclear Science Committee developing databases of integral experiments. In particular, there will be close links with the Working Party on Scientific Issues of Reactor Systems (WPRS) Expert Group on Reactor Physics and Advanced Nuclear Systems (EGRPANS). This group is responsible for co-ordinating the development of the International Reactor Physics Experiments (IRPhE) database.
A key element of the evaluation process is a rigorous analysis of the uncertainties, including quantification of correlations between experiments. There will be strong linkage between the ICSBEP Technical Review Group and the WPNCS Subgroup on the Role of Integral Experiment Uncertainties and Covariance Data in Criticality Safety Validation.