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Publications and Reports
Regulatory Perspectives on Analytical Codes and Methods for Advanced Reactors

Analytical codes and methods play a critical role in the design and safety analysis of nuclear reactors, helping to evaluate complex systems against potential severe events. This NEA report addresses...

English CNRA Nuclear safety WGSAR Regulation of new and advanced reactors Reactor technology …
Published date: 17 June 2025
NEA Document
Regulatory Perspectives on Safety Aspects Related to Advanced Sodium Fast Reactors - Part 2. Neutronics and Criticality Safety of Sodium Fast Reactors
NEA/CNRA/R(2019)1

This report describes the regulatory perspectives on safety aspects related to the calculation and justification of neutronic characteristics and criticality safety assessment of advanced sodium fast...

English Criticality Nuclear safety Regulation WGSAR Regulation of new and advanced reactors Nuclear safety regulation …
Published date: 1 October 2021
NEA Document
Regulatory Perspectives on Safety Aspects Related to Advanced Sodium Fast Reactors Part 4. Fuel Qualification for Sodium Fast Reactors
NEA/CNRA/R(2019)2

This technical report describes the regulatory perspectives on safety aspects related to the fuel qualification for advanced sodium fast reactors (SFRs) and identifies topics that should be investiga...

CNRA Nuclear safety Regulation WGSAR Safety …
Published date: 13 September 2021
News
Safety considerations for advanced nuclear reactors

The NEA Working Group on the Safety of Advanced Reactors (WGSAR) held its biannual meeting via video conference on 21-23 April 2021, welcoming a new member representing Poland’s National Centre for N...

Generation IV reactors Regulation WGSAR Advanced reactors Regulation of new and advanced reactors …
Published date: 28 April 2021
News
Advanced reactor safety

NEA Working Group on the Safety of Advanced Reactors (WGSAR) meeting, 23 June 2020.

News brief Advanced reactor systems WGSAR Nuclear safety research
Published date: 1 July 2020
Activity
Working Group on the Safety of Advanced Reactors (WGSAR)

The working group will be responsible for the programme of work in the CNRA regarding regulatory activities in the primary area of advanced reactors and associated installations. The term “advanced r...

CNRA Regulation WGSAR Advanced reactors Regulation of new and advanced reactors Operating experience …
Published date: 2 April 2020
News
News brief WGSAR Advanced reactors Regulation of new and advanced reactors Operating experience …
Published date: 18 November 2019