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    Reactor physics
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    Joint project
    NEST Small Modular Reactors (SMRs)

    This NEST project aims to integrate SMR research projects from the individual Participating Organisation countries into a broader and more impactful programme. It will include elements of technology ...

    Reactor physics Nuclear Education, Skills and Technology (NEST) Framework Spent fuel Reactor design
    Published date: 18 February 2020
    Activity
    Nuclear Science Committee (NSC)

    The NEA nuclear science programme is developed and executed by the Nuclear Science Committee (NSC), comprising high-level scientific experts from all NEA member countries.

    Nuclear fuel Reactor physics Nuclear science Criticality Materials science Chemistry …
    Published date: 15 May 2023
    Publications and Reports
    NUPEC BWR Full-size Fine-mesh Bundle Test (BFBT) Benchmark

    Refined models for best-estimate calculations based on good-quality experimental data can improve the understanding of phenomena and the quantification of margins for operating nuclear power reactors...

    English Reactor physics Nuclear science Multiphysics Nuclear science Benchmark Reactor physics Multiphysics …
    Published date: 7 July 2006
    Publications and Reports
    NUPEC BWR Full-size Fine-mesh Bundle Test (BFBT) Benchmark - Volume II: Uncertainty and Sensitivity Analyses of Void Distribution and Critical Power - Specification

    This report provides the specification for the uncertainty exercises of the international OECD/NEA, NRC and NUPEC BFBT benchmark problem including the elemental task. The specification was prepared j...

    English Nuclear science Light water reactors WPRS Thermal hydraulics and mechanics EGTHM Reactor physics Modelling and simulation Reactor physics Verification and validation Validation Uncertainty analysis Nuclear science Benchmark …
    Published date: 1 January 2010
    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 science Nuclear safety WPRS Thermal hydraulics and mechanics EGTHM Reactor physics Reactor physics Nuclear science Benchmark …
    Published date: 1 June 2021
    NEA Document
    NUPEC BWR Full-size Fine-mesh Bundle Test BFBT Benchmark - Volume IV: Results of Phase II on Pressure Drop and Critical Power
    NEA/NSC/R(2020)7

    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 science Nuclear safety WPRS EGTHM Reactor physics Reactor physics Nuclear science Benchmark …
    Published date: 2 December 2021
    NEA Document
    OECD/NRC Benchmark Based on NUPEC Pressurised Water Reactor Sub-channel and Bundle Tests (PSBT) - Volume I: Experimental database and final problem specifications
    NEA/NSC/DOC(2012)1

    Based on the success of the OECD/NRC BFBT Benchmark, Japan released data based on the NUPEC PWR Sub-channel and Bundle Tests (PSBT) Benchmark and asked Pennsylvania State University (PSU) in the Unit...

    English Nuclear science WPRS Multiphysics EGTHM Reactor physics Multiphysics Reactor physics NSC Nuclear science Benchmark Pressurised water reactors …
    Published date: 4 January 2012
    NEA Document
    OECD/NRC Boiling Water Reactor Turbine Trip (TT) Benchmark - Summary of the Fifth Workshop
    NEA/NSC/DOC(2003)1

    21-22 January 2003, Barcelona, Spain

    Reactor physics Boiling water reactors NSC Nuclear science Nuclear science Benchmark Reactor physics Multiphysics …
    Published date: 1 May 2003
    NEA Document
    OECD/NRC Boiling Water Reactor Turbine Trip (TT) Benchmark - Summary of the First Workshop
    NEA/NSC/DOC(2000)22
    Reactor physics Boiling water reactors NSC Nuclear science Nuclear science Benchmark Reactor physics Multiphysics …
    Published date: 10 December 2000
    NEA Document
    OECD/NRC Boiling Water Reactor Turbine Trip (TT) Benchmark - Summary of the Fourth Workshop
    NEA/NSC/DOC(2002)15

    6 October 2002, Seoul, Korea

    Reactor physics Boiling water reactors NSC Nuclear science Nuclear science Benchmark Reactor physics Multiphysics …
    Published date: 1 November 2002
    NEA Document
    OECD/NRC Boiling Water Reactor Turbine Trip (TT) Benchmark - Summary of the Second Workshop
    NEA/NSC/DOC(2001)20

    Paul Scherrer Institute, Villigen, Switzerland, 15-16 October 2001

    Reactor physics Boiling water reactors NSC Nuclear science Nuclear science Benchmark Reactor physics Multiphysics …
    Published date: 1 October 2001
    NEA Document
    OECD/NRC Boiling Water Reactor Turbine Trip (TT) Benchmark - Summary of the Third Workshop and Starter Meeting for the VVER-1000 Coolant Transient (V1000-CT) Benchmark
    NEA/NSC/DOC(2002)11

    Rossendorf (Dresden), Germany, 28-30 May 2002

    Reactor physics Boiling water reactors NSC Nuclear science Nuclear science Benchmark Reactor physics Multiphysics …
    Published date: 29 July 2002
    NEA Document
    Overview of SMORN-VI: Summary of the Sixth Symposium on Reactor Noise (SMORN VI)
    NEA/NEACRP/L(1991)333

    A summary of the Sixth Symposium on Reactor Noise (SMORN VI), Gatlinburg, United States, 19-24 May 1991

    English Reactor physics NSC Nuclear science Nuclear science …
    Published date: 1 January 1991
    NEA Document
    Overview of the 7th Symposium on Reactor Surveillance and Diagnostics (SMORN-VII)
    NEA/NSC/DOC(1996)17

    Overview of the 7th Symposium on Reactor Surveillance and Diagnostics (SMORN-VII), 19-23 June 1995, Avignon, France

    English Reactor physics NSC
    Published date: 1 January 1996
    NEA Document
    PBMR Coupled Neutronics/Thermal-Hydraulics Transient Benchmark: The PBMR-400 Core Design - Volume 1: The Benchmark Definition
    NEA/NSC/DOC(2013)10

    This report defines the “OECD/NEA/NSC PBMR Coupled Neutronics/Thermal-hydraulics Transient Benchmark of the PBMR-400 Core Design”. This chapter gives more information on the day-to-day management of ...

    English Nuclear science WPRS Multiphysics Thermal hydraulics and mechanics Reactor physics Multiphysics EGMUP Modelling and simulation Reactor physics NSC Thermal hydraulics Nuclear science Benchmark …
    Published date: 19 June 2013
    Activity
    Pellet-Cladding Mechanical Interaction (PCMI) Benchmark

    The aim of the benchmark is to improve understanding and modelling of pellet-cladding mechanical interaction (PCMI) amongst NEA member organisations. This is achieved by comparing PCMI predictions of...

    Nuclear fuel Reactor physics Light water reactors EGRFP Benchmark Reactor physics …
    Published date: 23 March 2022
    Activity
    Physics of plutonium recycling

    For nuclear utility companies that opt to reprocess spent fuel, recycle it or do both, one of the main pertinent issues is plutonium recycling.

    Reactor physics Plutonium Nuclear fuel cycle Reactor physics
    Published date: 8 September 2021
    Publications and Reports
    Physics of Plutonium Recycling - Volume I

    Attitudes towards plutonium management vary from country to country and from utility to utility: some regard plutonium as a liability and others as a valuable source of energy.

    The purpose of this st...

    English Nuclear science Plutonium Liquid metal reactors Advanced reactors Reactor physics Recycling and reuse Reactor physics NSC Gas-cooled reactors Fuel cycle technology Nuclear science Fuel cycle physics and chemistry Pressurised water reactors …
    Published date: 1 November 1995
    Publications and Reports
    Physics of Plutonium Recycling - Volume II

    The quality of the isotopic composition of plutonium fuel degrades as the number of recycles increases in thermal reactors. There are in addition incentives to better utilise fuel by increasing the b...

    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: 19 July 1995
    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
    Publications and Reports
    Physics of Plutonium Recycling - Volume IV

    Studies on fast reactors have historically concentrated on their capability of using plutonium produced in thermal reactors as initial fuel, and subsequently their capacity to produce electricity whi...

    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: 1 November 1995
    Publications and Reports
    Physics of Plutonium Recycling - Volume IX

    The NEA has studied multiple recycling issues associated with various reactor systems fuelled with mixed-oxide (MOX) and published a series of computational physics benchmarks. This has led to improv...

    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: 21 June 2007
    Publications and Reports
    Physics of Plutonium Recycling - Volume V

    Studies on fast reactors have historically concentrated on their capability to use plutonium produced in thermal reactors as initial fuel, and subsequently their capacity to produce electricity while...

    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: 1 November 1996
    Publications and Reports
    Physics of Plutonium Recycling - Volume VI

    Although the recycling of plutonium as thermal mixed-oxide (MOX) fuel in pressurised water reactors (PWRs) is now well-established on a commercial scale, many physics questions remain. The main quest...

    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: 23 October 2002
    Publications and Reports
    Physics of Plutonium Recycling - Volume VII

    The commercial recycling of plutonium as PUO2/UO2 mixed-oxide (MOX) fuel is an established practice in pressurised water reactors (PWRs) in several countries, the main motivation being the consumptio...

    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: 10 March 2003
    Publications and Reports
    Physics of Plutonium Recycling - Volume VIII

    The NEA has studied multiple recycling issues associated with various reactor systems fuelled with mixed-oxide (MOX) and published a series of computational physics benchmarks. This has led to improv...

    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: 21 June 2007
    Publications and Reports
    Prediction of Neutron Embrittlement in the Reactor Pressure Vessel

    The OECD/NEA Task Force on Computing Radiation Dose and Modelling of Radiation-Induced Degradation of Reactor Components (TFRDD) launched two international blind intercomparison exercises to examine ...

    English Reactor physics Nuclear science Nuclear science Benchmark Reactor physics …
    Published date: 1 January 2000
    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
    Publications and Reports
    Reactor Noise - SMORN I
    English Reactor physics Nuclear science Proceedings
    Published date: 1 January 1974
    Publications and Reports
    Reactor Noise - SMORN II
    English Reactor physics Nuclear science Proceedings
    Published date: 1 January 1977
    Subtopic
    Reactor physics

    Questions relating to the space, time end energy distribution of neutrons and radiation in different media are the domain of reactor physics.

    Reactor physics Verification and validation Fast reactor Benchmark Advanced reactors Reactor physics …
    Published date: 2 December 2019
    Publications and Reports
    Review of Integral Experiments for Minor Actinide Management

    Spent nuclear fuel contains minor actinides (MAs) such as neptunium, americium and curium, which require careful management. This becomes even more important when mixed oxide (MOX) fuel is being used...

    English Reactor physics Nuclear science EGPRS WPRS Nuclear science …
    Published date: 17 February 2015
    Activity
    Rostov-2 VVER-1000 Benchmark

    A number of tests with detail well documented neutronics and thermal-hydraulics measurements data have been performed at the Rostov Unit 2 (Rostov-2) nuclear power plant (NPP). The reactor type is a ...

    Reactor physics Nuclear science Multiphysics Multiphysics
    Published date: 2 August 2022
    Event
    SCALE TRITON Lattice Physics and Depletion
    22 - 26 May 2023
    NEA, Paris (France)
    Place: OECD/NEA Headquarters in Paris, France
    Minimum enrollment required: 12 participants
    Course fee: 2300 EUR
    Registration closed
     
    The training course will be taught in English.
    Participan...
    Modelling and simulation Reactor physics CPS Data Bank Uncertainty analysis Training …
    Published date: 17 May 2023
    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 SINBAD WPRS Reactor physics …
    Published date: 24 February 2021
    News
    Scientific issues of nuclear reactor systems

    NEA Working Party on Scientific Issues of Reactor Systems (WPRS) annual meeting, 19-21 February 2020.

    Reactor physics News brief Nuclear science SINBAD Reactor physics …
    Published date: 4 March 2020
    NEA Document
    Shielding Aspects of Accelerators, Target and Irradiation Facilities (SATIF-12)
    NEA/NSC/R(2015)3

    Twelfth Workshop Proceedings, Batavia, Illinois, United States, 28-30 April 2014

    English Reactor physics NSC Nuclear science Radiation shielding EGPRS WPRS Nuclear science Proceedings Reactor physics …
    Published date: 2 June 2015
    NEA Document
    Shielding Aspects of Accelerators, Target and Irradiation Facilities (SATIF-13) - Proceedings of the Thirteenth Meeting, 10-12 October 2016, Dresden, Germany
    NEA/NSC/R(2018)2
    English Reactor physics NSC Nuclear science Radiation shielding EGPRS WPRS Nuclear science Proceedings Reactor physics …
    Published date: 8 December 2021
    NEA Document
    Shielding Aspects of Accelerators, Targets and Irradiation Facilities (SATIF-14)
    NEA/NSC/R(2021)2

    Proceedings of the Fourteenth Workshop, 30 October-2 November 2018, Gyeongju, Korea.

    English Nuclear science Radiation shielding WPRS Proceedings Reactor physics Reactor physics NSC EGPRS Nuclear science …
    Published date: 16 December 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
    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 Thermal hydraulics and mechanics Reactor physics …
    Published date: 10 December 2020
    Event
    Uncertainty Analysis in Modelling Workshop (UAM-2006)
    28 - 29 April 2006
    Pisa, Italy
    Boiling water reactors Light water reactors Reactor physics Modelling and simulation Reactor physics Verification and validation Verification Validation Uncertainty analysis Benchmark Pressurised water reactors …
    Published date: 18 December 2020
    NEA Document
    VENUS-1 Two-Dimensional Benchmark on Ex-Core Dosimetry Computations
    NEA/NSC/DOC(1996)25

    In this benchmark exercise the goal is to test the current state-of-the-art two-dimensional methods of calculating neutron flux to reactor components against the measured data of the VENUS-1 critical...

    English Reactor physics NSC Nuclear science Nuclear science Benchmark Reactor physics …
    Published date: 1 January 1996
    Publications and Reports
    Very High Burn-ups in Light Water Reactors

    Average fuel burn-up in light water reactors (LWRs) has steadily increased with time as technological advances have been made. The practical limit is currently in the region of 50 GWd/t. The main dri...

    English Nuclear fuel Reactor physics Fuel studies Nuclear science Light water reactors Nuclear science Reactor physics …
    Published date: 22 August 2006
    Publications and Reports
    VVER-1000 Coolant Transient Benchmark - Phase 1 (Vol. 1)

    In the field of coupled neutronics/thermal-hydraulics computation there is a need to enhance scientific knowledge in order to develop advanced modelling techniques for new nuclear technologies and co...

    English Reactor physics Nuclear science Multiphysics Benchmark Reactor physics Pressurised water reactors …
    Published date: 31 December 2003
    Publications and Reports
    VVER-1000 Coolant Transient Benchmark - Phase 1 (Vol. 2)

    In the field of coupled neutronics/thermal-hydraulics computation there is a need to enhance scientific knowledge in order to develop advanced modelling techniques for new nuclear technologies and co...

    English Reactor physics Nuclear science Multiphysics Benchmark Reactor physics Pressurised water reactors Multiphysics …
    Published date: 30 June 2006
    Publications and Reports
    VVER-1000 Coolant Transient Benchmark - Phase 1 Phase I (V1000CT-1), Volume 3: Summary Results of Exercise 2 on Coupled 3-D Kinetics/Core Thermal-hydraulics

    In the field of coupled neutronics/thermal-hydraulics computation there is a need to enhance scientific knowledge in order to develop advanced modelling techniques for new nuclear technologies and co...

    English Reactor physics Nuclear science WPRS Multiphysics Nuclear science Reactor physics Multiphysics EGMUP …
    Published date: 16 November 2007
    Publications and Reports
    VVER-1000 Coolant Transient Benchmark - Phase 2 (V1000CT-2): Summary Results of Exercise 1 on Vessel Mixing Simulation

    Recently developed best-estimate computer code systems for modelling 3-D coupled neutronics/thermal-hydraulics transients in nuclear reactors need to be validated against results from experiments and...

    English Reactor physics Nuclear science WPRS Multiphysics Nuclear science Reactor physics Multiphysics EGMUP …
    Published date: 5 October 2010
    Publications and Reports
    VVER-1000 MOX Core Computational Benchmark

    The United States and the Russian Federation have each agreed to dispose of 34 tonnes of weapons-grade plutonium that are beyond their defence needs. One effective way to dispose of this plutonium is...

    English Modelling and simulation Reactor physics Nuclear science Nuclear science Benchmark Pressurised water reactors …
    Published date: 20 January 2006
    Activity
    Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS)

    The Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS) studies the reactor physics, fuel performance, and radiation transport and shielding in present and future nu...

    Nuclear fuel Reactor physics Multi-physics simulations Fuel studies Light water reactors Thermal hydraulics WPRS Pressurised heavy water reactors Reactor physics Multiphysics …
    Published date: 7 February 2023
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