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NEA Document
Status Report on Reliability of Thermal-Hydraulic Passive Systems
NEA/CSNI/R(2021)2

Passive thermal-hydraulic systems are widely used in nuclear reactor safety and design. For example, primary circuits in existing boiling and pressurised water reactors are designed to take advantage...

English WGAMA WGRISK Nuclear safety Accident analysis and management Nuclear technology Nuclear safety research CSNI PRG CSNI Safety Risk assessment Thermal hydraulics Accident management …
Published date: 26 November 2024
NEA Document
WGAMA PERSEO Benchmark Results Report
NEA/CSNI/R(2021)2/ADD

PERSEO was built at SIET laboratory (Piacenza, Italy) to study a new passive decay heat removal system operating in natural circulation. The main innovation in PERSEO is the presence of two pools con...

English WGAMA Nuclear safety Accident analysis and management Italy Nuclear safety research CSNI PRG CSNI Safety Accident management Pressurised water reactors …
Published date: 26 November 2024
NEA Document
Application of the International Structure for Decommissioning Costing (ISDC) 2012 to Complex and Legacy Sites
NEA/DLM/R(2024)1

The Nuclear Energy Agency (NEA) Expert Group on Costing for Decommissioning of Nuclear Installations and Legacy Management (EGCDL) addresses costing issues as an expert group of the NEA Working Party...

EGCDL Decommissioning WPMO International Structure for Decommissioning Costing (ISDC)
Published date: 25 November 2024
NEA Document
NEA and METI International Workshop on Joint Utilisation of Underground Research Laboratories for R&D Projects
NEA/RWM/R(2023)1

The NEA and METI International Workshop on Joint Utilisation of Underground Research Laboratories (URLs) for R&D Projects was organised in the JAEA Horonobe International Communication House (Horonob...

Safety regulation in radioactive waste management High-level waste (HLW) Underground research laboratory (URL) RWMC Spent fuel Underground research facility (URF) Geological disposal …
Published date: 19 November 2024
NEA Document
International Features, Events and Processes (IFEP) List for the Deep Geological Disposal of Radioactive Waste
NEA/RWM/R(2024)2

The Nuclear Energy Agency’s (NEA) Integration Group for the Safety Case (IGSC) and its predecessor, the Performance Assessment Advisory Group (PAAG), have carried out activities related to the compil...

English Safety provisions of radioactive waste management Deep geological repository (DGR) Disposal RWMC IGSC Radioactive waste Safety case Radioactive waste management FEPs Features events and processes (FEPs) …
Published date: 8 November 2024
NEA Working Paper
Automated Conversion of International Criticality Safety Benchmark Models: Developing a Reproducible Serpent-2 Model Repository from MCNP Inputs
NEA/WKP(2024)5

The Serpent-2 software is a three-dimensional continuous-energy neutron and photon transport code, developed at the Technical Research Centre of Finland (VTT) (Leppänen, 2015), and is one of the most...

WPEC Nuclear science Validation Nuclear data processing
Published date: 7 November 2024
NEA Document
Real-Time Platforms for Nuclear and Radiological Emergency Preparedness and Response within Countries: National Guidance to Enhance Cross-Border Information Exchange and Co-ordination of Protective Actions
NEA/CRPPH/R(2024)2

The NEA Committee on Radiological Protection and Public Health (CRPPH) assists NEA member countries in identifying critical and emerging issues in radiological protection, analysing their possible im...

Radiological protection in nuclear or radiological emergencies EGRT Radiological protection INEX Radiological protection Emergency preparedness and response …
Published date: 29 October 2024
NEA Document
Understanding Dose Prognosis in Nuclear and Radiological Emergencies: Comparison of National Assessment Chains and Practical Guidance for Better Information Exchange and Co-ordination of Protective Actions
NEA/CRPPH/R(2024)1

The NEA has a long tradition of promoting co-operation and assistance among its member countries on preparedness for nuclear and radiological emergencies. This is implemented through its Committee on...

Radiological protection in nuclear or radiological emergencies Radiological protection Dose prognosis INEX Radiological protection Emergency preparedness and response …
Published date: 29 October 2024
NEA Document
Proceedings of the 2017 International Workshop on Fuel Modelling to Support Safety and Performance Enhancement for Water-cooled Reactors
NEA/CSNI/R(2021)11

At the Nuclear Energy Agency (NEA), the importance of fuel modelling and its improvement through development of phenomenological representations has been recognised and multiple technical groups rela...

Nuclear safety Nuclear safety research CSNI PRG CSNI Safety NSC Nuclear science Nuclear safety regulation WGFS …
Published date: 22 October 2024
NEA Working Paper
Fluoride-salt High-temperature Reactor (FHR) Reactor Physics Calculations Benchmark
NEA/WKP(2024)2

Under the auspices of the Nuclear Energy Agency (NEA) Nuclear Science Committee (NSC), the Working Party on Scientific Issues of Reactor Systems (WPRS) has been established to study reactor physics, ...

English Nuclear science EGRPANS WPRS Nuclear science Benchmark …
Published date: 4 October 2024