NEA Mandates and Structures

Expert Group on Radiation Transport and Shielding

Chair(s): Robert E. GROVE, United States
Secretary:  Shuichi TSUDA
Member(s):All NEA member countries
Full participant(s): European Commission
Under the NEA Statute
Observer(s)(International Organisation): International Atomic Energy Agency (IAEA)
By agreement
Date of creation:30 June 2011
End of mandate:29 June 2021

Mandate (Document reference):

Mandate (Document extract):

Extract from document NEA/NSC/WPRS/DOC(2019)14



Under the guidance of the Working Party on Scientific Issues of Reactor Systems (WPRS), the Expert Group will perform specific tasks associated with radiation transport and shielding aspects of present and future nuclear systems and accelerator-based irradiation facilities. Nuclear systems considered may include, but are not limited to, the following:

The Expert Group may also consider radiation transport and shielding for some other types of facilities, including:


  1. To provide expert advice to the WPRS and the nuclear/accelerator communities on the development needs (such as data and methods, models and codes, validation experiments) for various nuclear and accelerator systems and scenarios.
  2. To provide specific technical information regarding:

This technical information will generally be derived from a combination of direct experimental evidence and/or the results of theoretical benchmark analyses (including sensitivity/uncertainty analysis) using validated modelling methods. In either case, the availability of suitable experimental data is a fundamental requirement. A key objective of the group will therefore be to help identify, evaluate and preserve this type of experimental data. In this context, the Expert Group will monitor, steer and support the continued development of the International Radiation Shielding Experiments Database (SINBAD), in co-operation with the United States’ Radiation Safety Information Computational Centre (RSICC).

Links to other NEA bodies and international projects

This Expert Group will report to the Working Party on Scientific issues in Reactor Systems (WPRS) and will maintain close links with the International Reactor Physics Experiments (IRPhE) and International Criticality Safety Benchmark Evaluation (ICSBEP) projects. It should also work in co-ordination with the Joint Evaluated Fission and Fusion File (JEFF) NEA Data Bank project and with the Shielding Aspects of Accelerators, Targets and Irradiation Facilities (SATIF) community of accelerator shielding specialists. Links will also be established with the Codes and Standards Working Group (CSWG) of the Multilateral Design Evaluation Programme (MDEP).


Meeting frequency
The Expert Group shall meet once a year, with additional meetings in support of particular activities (e.g. SINBAD, SATIF).