IRSN, Institut de radioprotection et de sûreté nucléaire

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Enhancing Nuclear Safety



Research programmes on accidents

In in the page below, are detailed a few current research programmes to improve knowledge of accident phenomena.

SETH 2 study thermal-hydraulics phenomena for the purposes of accident management.
THAI project (thermal, hydrogen, aerosols, iodine) aims to remove uncertainties regarding the distribution, combustion and mitigation of hydrogen as well as those concerning the behavior of fission products, including iodine, and aerosols.
To develop research on generation IV nuclear reactors using gas and high temperatures (VHTR, Very High Temperature Reactors)
SERENA - Steam Explosion REsolution for Nuclear Applications – is an international experimental project coordinated by the OECD to which the IRSN in partnership with the CEA.
The BEMUSE project - for Best-Estimate Methods – Uncertainty and Sensitivity Evaluation - is an international project coordinated by the OECD (Organisation for Economic Co-operation and Development) in which IRSN is involved.
The ASAMPSA2 project - Advanced Safety Assessment Methodologies: Level 2 Probabilistic Safety Assessment - is coordinated by the IRSN, and includes 21 organisations from 12 European countries.
The actors of the international CABRI study the reactivity incidents to ensure the extraction of a maximum of energy from the fuel by extending the residence time in reactors.
The aim of the programme "SOURCE TERM" is to reduce uncertainties concerning the assessment of the release of radioactive products into the environment following a core meltdown accident in a water reactor. Other programmes included: EPICUR, MOZART, CHIP.
The severe accident research programme called PHEBUS FP aims at reducing uncertainties concerning the evaluation of radioactive product releases in the event of a pressurised water reactor (PWR) core meltdown, as well as improving IRSN’s expertise and crisis management capacities in this field.
Study of the effect of wind on accidental contaminating releases from a nuclear power plant. The TIVANO programme (from the French acronym meaning "Transfers Induced by Wind in Accident and Nominal Operating Conditions) aims particularly at qualifying the CFX calculation codes and the SYLVIA software programs to better integrate the effects of wind in the release calculations.
An experimental programme to validate criticality calculation codes for structural materials.

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