CM of INDEN on Light Elements

15-17 May 2019, IAEA, Vienna

Motivation

INDEN (International Nuclear Data Evaluation Network) is an initiative of the IAEA which aims at continuing the success of the NEA CIELO project in expediting advances in nuclear data evaluation through international collaboration among experts TM CIELO.

Therefore, the INDEN main goal is to produce improved (in terms of physics and/or performance in selected applications) evaluated data files for these nuclides, but in addition, to lead in the process to a better understanding of the underlying physics, to improve the models and approaches, the statistical analysis and treatment of uncertainties and hence to develop an evaluation methodology that is broadly accepted and adopted by the nuclear data community.

The first INDEN on Light Elements meeting addressed evaluation issues related to the light systems that were identified as important for reactor applications: n+⁹Be, n+^14,15N, n+²³Na, and in addition n+¹⁶O, α+^17,18O.

In this meeting, participants reviewed the progress that was made in the evaluations of the above systems and discussed in detail:

• Issues with experimental data in EXFOR; missing experimental; normalizations
• Data normalizations and treatment of uncertainties
• Treatment of uncertainties and calculation of covariances
• Extending R-matrix theory to higher energies
• Including break-up channels (particularly 4-body channels)

The list of assignments from the previous meeting was revised and recommendations were made.

Agenda

The Agenda is available here.

Report

The summary report is available as INDC(NDS)-0788.

Presentations