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Activity
Neutron noise analysis

Neutron noise analysis can be defined as the direct measurement of the kinetics of a nuclear core. This page describes some of the NEA's previous activities on neutron noise analysis in nuclear power...

Nuclear science Fast reactor Benchmark Reactor physics
Published date: 26 July 2021
Activity
Pebble Bed Modular Reactor (PBMR) Coupled Neutronics/Thermal-hydraulics Transients Benchmark - PBMR-400 Core Design

The international benchmark concerned pebble bed modular reactor (PBMR) coupled neutronics/thermal-hydraulics transients based on the PBMR-400MW design.

SMR Gas-cooled reactors Thermal hydraulics Verification Multiphysics Benchmark Reactor physics Multiphysics …
Published date: 26 July 2021
Activity
Fluoride Salt-Cooled High-Temperature Reactor (FHR) Benchmark

Fluoride salt-cooled high-temperature reactors (FHRs), cooled with liquid (molten) salt, fueled with TRISO-based fuel are a potential molten salt reactor (MSR) design.

Nuclear science Molten salt reactors Verification Reactor physics
Published date: 14 June 2021
NEA Document
Benchmark Specifications for the Fluoride-salt High-temperature Reactor (FHR) Reactor Physics Calculations
NEA/NSC/R(2020)5

This benchmark focuses on FHR reactors with plates and triso fuel. Several phases are planned, starting with neutronics on a simple fuel element simulation without burn-up, and gradually extending to...

Reactor physics Verification Reactor physics
Published date: 4 June 2021
NEA Document
NUPEC BWR Full-size Fine-mesh Bundle Test BFBT Benchmark - Volume III: Results of Phase I on Void Distribution
NEA/NSC/R(2020)6

In the past decade, a large amount of effort has been made towards the direct simulation of the boiling transition (BT) for Boiling Water Reactor (BWR) fuel bundles. This international benchmark, bas...

English Boiling water reactors Nuclear safety Benchmark Reactor physics …
Published date: 1 June 2021
Activity
Expert Group on Integral Experiments for Minor Actinide Management (EGIEMAM)

The expert group critically reviewed integral experiments for validating minor actinide (MA) nuclear data, recommended additional integral experiments needed for validating MA nuclear data and invest...

WPFC WPEC Nuclear science Experiments Actinides WPRS Reactor physics Integral experiments Minor actinides NSC Nuclear fuel cycle Fuel cycle physics and chemistry …
Published date: 5 March 2021
News
Scientific issues and uncertainty analysis of nuclear reactor systems

NEA Working Party on Scientific Issues of Reactor Systems (WPRS) annual meeting, 15-19 February 2021.

Reactor physics News brief Nuclear science EGPRS WPRS Reactor physics …
Published date: 24 February 2021
Activity
Sodium-cooled Fast Reactor (SFR) Benchmark Task Force

A sodium-cooled fast reactor (SFR) is a fast neutron reactor that uses molten sodium metal as a coolant. Sodium-cooled Fast Reactors (SFRs) are the most promising type of reactors to achieve Generati...

Reactor physics EGRPANS Fast reactor WPRS Reactor physics …
Published date: 4 February 2021
News
Benchmarking, single and multi-physics modelling and simulation tools for nuclear reactor analysis

NEA Working Party on Scientific Issues of Reactor Systems (WPRS) workshops, 7-15 December 2020.

Reactor physics News brief Nuclear science Reactor physics
Published date: 17 December 2020
Activity
Expert Group on Reactor-based Plutonium Disposition (TFRPD)

The Expert Group on Reactor-based Plutonium Disposition (TFRPD) dealt with the status and trends of reactor physics, fuel performance and fuel cycle issues related to the disposition of weapons-grade...

Reactor physics Fuel studies Nuclear science Plutonium Reactor physics …
Published date: 16 December 2020
Subtopic
Reactor fuel performance

Understanding fuel performance is a key condition for successful reactor operation. Scientific knowledge in this domain was conceived by experimental tests encoded into software routines to ensure ac...

Reactor physics Fuel studies Nuclear science Reactor physics
Published date: 10 December 2020
Subtopic
Thermal hydraulics and mechanics

Thermal hydraulics and mechanics deals with the physics and mechanics of the flow and energetic transfer of liquids, and its interactions with the structures around them in large complex systems, suc...

Reactor physics Nuclear science Thermal hydraulics Verification and validation Verification Validation Benchmark Reactor physics …
Published date: 10 December 2020
Other
First Information Exchange Meeting on the Nuclear Production of Hydrogen - Programme and abstracts

First Information Exchange Meeting on the Nuclear Production of Hydrogen, Paris, France, 2-3 October, 2000 - Programme and abstracts

Nuclear science Multiphysics Reactor physics
Published date: 24 November 2020
Other
Third Information Exchange Meeting on the Nuclear Production of Hydrogen - Programme

Third Information Exchange Meeting on the Nuclear Production of Hydrogen including Second HTTR Workshop, Japan Atomic Energy Agency (JAEA), Oarai, Japan, 5 - 7 October 2005 - Programme

Nuclear science Multiphysics Reactor physics
Published date: 24 November 2020
Publications and Reports
Physics of Plutonium Recycling - Volume III

The quality of the isotopic composition of plutonium fuel degrades as the number of recycles increases in thermal reactors, requiring an increase in the total loading necessary in mixed plutonium-ura...

English Nuclear science Plutonium Liquid metal reactors Advanced reactors Reactor physics Recycling and reuse Reactor physics NSC Gas-cooled reactors Fuel cycle technology Fuel cycle physics and chemistry Pressurised water reactors …
Published date: 17 November 2020
Activity
Subgroup on Uncertainty Analysis in Modelling (UAM) for Design, Operation and Safety Analysis of Sodium-cooled Fast Reactors (SFR-UAM)

The Subgroup on Uncertainty Analysis in Modelling (UAM) for Design, Operation and Safety Analysis of Sodium-cooled Fast Reactors (SFR-UAM) was formed to check the use of best-estimate codes and data....

Sodium-cooled reactor Verification Fast reactor Benchmark Reactor physics …
Published date: 6 November 2020
Subtopic
Multiphysics

Multiphysics are simulations using computer applications or software to couple multiple physical events in order to predict or validate the physical real-world outcome.

Multi-physics simulations Nuclear science Benchmark Reactor physics Multiphysics …
Published date: 16 October 2020
Activity
IRPhE Handbook 2019 Edition - Contents

IRPhE Handbook 2019 Edition - Contents

Verification and validation Verification Uncertainty quantification Uncertainty analysis Reactor physics …
Published date: 30 September 2020
Activity
International Fuel Performance Experiments (IFPE) database

International Fuel Performance Experiments (IFPE) is the public domain database on nuclear fuel performance experiments for the purpose of code development and validation.

Fuel studies Nuclear science Experiments EGRPF Databases Ancillary data Reactor physics …
Published date: 19 August 2020
Activity
DATabase for IFpe (DATIF)

DATIF, the DATabase for IFpe, was first developed in 2018 in order to enhance accessibility to the IFPE legacy collection of integral fuel performance experiments data, jointly put together by the NE...

Nuclear fuel Physics Fuel studies NSC EGRFP Databases Ancillary data Reactor physics Integral experiments …
Published date: 23 July 2020