Speaker
Description
Working Party on International Nuclear Data Evaluation Co-operation Subgroup 47 (WPEC SG47) entitled "Use of Shielding Integral Benchmark Archive and Database for Nuclear Data Validation" was started in June 2019 with the objectives to promote a more systematic and wider use of shielding benchmark experiments in nuclear data and transport code validation and development, to provide feedback on the Shielding Integral Benchmark Archive and Database (SINBAD), and to promote its further development in coordination with Expert Group on Physics of Reactor Systems (EGPRS). Altogether 6 meetings, the large majority (5) held remotely by videoconference, were organised during the past 3 years to discuss the experience on the use of SINBAD, new benchmark experiment evaluations and improvements to be contributed to the database which is severely malnourished and lacking maintenance since the past ~10 years or more. Several proposals for new or updated benchmark evaluation were presented and discussed, such as FNG copper, LLNL pulsed spheres, CIAE iron sphere, KFK 1977 gamma measurements, Rez Fe sphere, ASPIS, Oxygen ORNL broomstick, TIARA and other benchmark experiments. Complementing the database with new features was also discussed. For example, providing nuclear data sensitivity profiles more systematically would facilitate and better guide the use of data. Also, the information on the geometry, (radiation source) and materials in CAD format is expected to allow an easier and less error prone computational model preparation for different transport codes. Inputs for various transport codes and other benchmark data from participants have been shared via NEA GitLab which could hopefully in future evolve and form a bases for critically checked and validated set for computer code analysis tools.
Examples of the use and some views on future development of the SINBAD benchmark database will be presented in the paper.