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NEA Document
Evaluation of Design and Monitoring Requirements for Vibrations in Safety-Related Fluid Systems
NEA/CSNI/R(2020)2

In order to reach a better understanding of countries’ different approaches to the evaluation of vibrations detected in piping systems and components, the NEA Committee on the Safety of Nuclear Insta...

WGIAGE Nuclear safety Nuclear safety research CSNI PRG CSNI Safety …
Published date: 15 February 2023
NEA Document
Investigation of Covariance Data in General Purpose Nuclear Data Libraries
NEA/NSC/R(2021)4

The understanding of nuclear physics and the associated uncertainties is essential to the modelling of all nuclear systems. Nuclear reaction probabilities, emitted particle energies and angles, fissi...

WPEC Nuclear science Nuclear data Nuclear science
Published date: 8 February 2023
NEA Document
Role of Integral Experiment Covariance Data for Criticality Safety Validation: EG UACSA Benchmark Phase IV
NEA/NSC/R(2021)1

This benchmark report has been compiled under the guidance of the NEA Working Party on Nuclear Criticality Safety (WPNCS) in the Subgroup on the Role of Integral Experiment Uncertainties and Covarian...

English UACSA Criticality safety Criticality WPNCS Nuclear science Benchmark …
Published date: 30 January 2023
NEA Document
The Nuclear Waste Management Organization of Japan’s Pre-siting Safety Case Based on the Site Descriptive Model: An International Peer Review of the NUMO Safety Case
NEA/RWM/R(2022)2

Following a safety-oriented, stepwise procedure for geological repository siting, the Nuclear Waste Management Organization of Japan (NUMO) requested in 2021 that the NEA facilitate an independent in...

English Peer review Deep geological repository (DGR) High-level waste (HLW) Japan Radioactive waste management RWMC Radioactive waste Safety case Geological disposal Features events and processes (FEPs) …
Published date: 19 January 2023
NEA Document
Status, Barriers and Cost-Benefits of Robotic and Remote Systems Applications in Nuclear Decommissioning and Radioactive Waste Management
NEA/RWM/R(2022)1

Robotics and remote systems (RRS) are essential technologies for work in the radiation environments typically encountered in the nuclear back-end, such as in radioactive waste management and decommis...

English CDLM EGRRS Decommissioning and legacy management Radioactive waste management RWMC Remote and robotic system Innovation Radioactive waste management Back-end …
Published date: 13 January 2023
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
NEA Document
IGSC Safety Case Symposium 2018: Current Understanding and Future Direction for the Geological Disposal of Radioactive Waste
NEA/RWM/R(2018)7

The Integration Group for the Safety Case (IGSC) was established in 2000 by the OECD Nuclear Energy Agency (NEA) Radioactive Waste Management Committee (RWMC) in recognition of the need for continued...

Radioactive waste management IGSC Repository Safety Geological disposal Radioactive waste Safety case …
Published date: 7 December 2022
NEA Document
Burnup Credit Criticality Benchmark Phase IIID: Burnup Calculations of Gadolinium- Bearing Fuel Rods in Boiling Water Reactor Assemblies for Storage and Transportation
NEA/NSC/R(2022)3/CORR

Please note that this report was initially published in November 2022 (NEA/NSC/R(2022)3) under erroneous benchmark number IIB; in this updated version (NEA/NSC/R(2022)3/CORR) this has been corrected ...

Criticality safety Nuclear science WPNCS Nuclear science Benchmark …
Published date: 30 November 2022
NEA Document
Treatment of Volatile Fission Products
NEA/NSC/R(2022)4

Under the auspices of the NEA Nuclear Science Committee (NSC), the Working Party on Scientific Issues of Advanced Fuel Cycles (WPFC) was established to co-ordinate scientific activities related to ad...

Fission products Spent fuel Nuclear science Nuclear fuel cycle EGFRW Fuel cycle physics and chemistry …
Published date: 29 November 2022
NEA Document
Phase III of the Assessment of Structures Subjected to Concrete Pathologies (ASCET): Final Report
NEA/CSNI/R(2019)11

In the ASCET Phase III, the goal was to assess and develop the Phase II (blind benchmark) recommendations using additional test results. The Phase III simulations were performed using a full set of t...

English Structural materials WGIAGE Nuclear safety Nuclear safety research CSNI PRG Safety assessment CSNI Safety …
Published date: 24 November 2022