Speaker
Description
The Fusion Evaluated Nuclear Data Library (FENDL) has been serving the Fusion Neutronics community for more than three decades, particularly addressing the nuclear data needs of the ITER project, for which it is the design library since FENDL 2.1, released in 2006.
Its development is driven by an international committee and coordinated by a series of meetings under the auspices of the IAEA Nuclear Data Section (NDS). Over the course of time, FENDL has been significantly updated to meet emerging data needs, such as an increase in isotope coverage and an extension of incident energies, which have been carried out in an IAEA Coordinated Research Project from 2008 to 2012.
More recently, a significant focus has been put on making the library development more transparent and traceable, starting from the compilation of source nuclear data files (in ENDF format) over processing with NJOY2016 and ending with streamlined verification and validation (V&V) with the JADE software package.
A comprehensive milestone paper for FENDL-3.2b has been published recently, which contains history, data preparation and processing, library content and V&V results [1]. A follow-up paper provides documentation of FENDL-3.2c, a maintenance release featuring improved processing by NJOY2016 with patches developed and tracked by the IAEA NDS [2].
This contribution will summarize the status of the FENDL project and present recent, ongoing, and envisioned developments, with a focus on robust methods and processes to enhance efficiency and quality assurance in the preparation of the next version of FENDL.
[1] G. Schnabel, D.L. Aldama et al. Nuclear Data Sheets 193, 1-78 (2024)
[2] T. Bohm, D.L. Aldama, et al. Fusion Science and Technology, 1-15 (2025)
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