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News
Advancing the CSNI Code Validation Matrix: Extension for novel technologies

The CSNI Code Validation Matrix (CCVM) is a repository of nuclear data and identified phenomena used to run tests, experiments and other procedures to ensure safety assessments and related operationa...

News brief Accident analysis and management Nuclear safety research Safety assessment CSNI Safety Risk Risk assessment Accident management …
Published date: 25 March 2025
NEA Document
Advancing the Robustness of Electrical Power Systems of Nuclear Power Plants
NEA/CSNI/R(2020)8

The aim of this report is to examine whether there are any international variations in the electrical power system designs (“design variations”) of nuclear power plants that affect the system respons...

Nuclear safety WGELEC Nuclear safety research CSNI PRG CSNI Safety Nuclear safety regulation …
Published date: 13 January 2023
News
Advancing the understanding of spent fuel pools during loss of cooling accidents

Approximately 30 experts from WGAMA discussed how to advance the understanding of phenomena in pool in the situation of a loss of cooling accident.

Fuel in nuclear safety News brief WGAMA Nuclear safety Spent fuel Nuclear safety research Joint project …
Published date: 25 April 2023
News
News brief WGAMA Nuclear safety research Uncertainty analysis
Published date: 27 May 2024
NEA Document
AECL International Standard Problem ISP-41: Follow-up Exercise (Phase II): Iodine Code Comparison Exercise Against CAIMAN and RTF Experiments
NEA/CSNI/R(2004)16

The main objective of ISP exercises is to increase confidence in the validity and accuracy of the tools that are used in assessing the safety of nuclear installations. The secondary objective is to e...

English Nuclear safety research CSNI Codes and programs
Published date: 1 November 2004
NEA Document
Aerosol and Iodine Issues, and Hydrogen Mitigation under Accidental Conditions in Water-cooled Reactors: Thermal-hydraulics, Hydrogen, Aerosols and Iodine (THAI-2) Project – Final Report
NEA/CSNI/R(2016)8

The overall objective of the THAI-2 project is to address open questions concerning the behaviour of hydrogen, iodine and aerosols in the containment of water-cooled reactors during design-basis or s...

English Nuclear safety research CSNI
Published date: 1 February 2017
News
Aged material research: NEA SMILE project nears completion

Project members discussed the results and the second phase foreseen to start in 2026.

News brief Long-term operation Nuclear safety research LTO Joint project Safety of components and structures Safety research …
Published date: 15 April 2025
NEA Document
Ageing Management of Fuel Cycle Facilities: Workshop Proceedings
NEA/CSNI/R(2010)4

The objective of the NEA’s Working Group on Fuel Cycle Safety (WGFCS) is to advance the understanding for both regulators and operators of relevant aspects of nuclear fuel cycle safety in member coun...

English WGFCS Nuclear safety research CSNI Safety Proceedings …
Published date: 24 November 2010
NEA Document
Ageing Management of Thick-Walled Concrete Structures, Including ISI, Maintenance and Repair, Instrumentation Methods and Safety Assessment in View of LTO: Workshop Proceedings
NEA/CSNI/R(2009)9

The Committee on the Safety of Nuclear Installations (CSNI) Working Group on Integrity and Ageing of Components and Structures (WGIAGE) considered there was a need to review the state-of-the-art tech...

English WGIAGE Nuclear safety research CSNI Safety of components and structures Proceedings …
Published date: 14 December 2009
NEA Document
English Accident analysis and management Fuel cycle facility safety Nuclear safety research CSNI Safety of components and structures Codes and programs Risk Safety research Risk assessment Verification and validation Validation Accident management …
Published date: 7 May 2010