IRSN, Institut de radioprotection et de sûreté nucléaire

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Enhancing Nuclear Safety




    IRSN – Institute for Radiological Protection and Nuclear Safety – is the French national public expert in nuclear and radiological risks.

    As a research and expert appraisal organization, IRSN contributes to the implementation of public policies concerning nuclear safety and security and health and environmental protection against ionizing radiation.



  • Fukushima: learning to live in contaminated territories  ​



    The web documentary Kotoba: Dialogues in Fukushima, produced by IRSN keeps alive this experience for the rehabilitation of living conditions in the areas contaminated by the Fukushima accident

    Giving voice to the Japanese, it tells the story of four years of dialogue between radiation protection experts and a community of individuals living in Fukushima Prefecture who want above all to regain full control over their lives.


  • Overall assessment of safety and radiation protection of the French nuclear power plant fleet in 2014



    Overall assessment of safety and radiation protection of the French nuclear power plant fleet in 2014

    In 2014, none of the significant events reported affected reactor safety. The number of significant radiation protection events fell by 8% compared to 2013 and few of them had any impact on the plants' workers’ health, the public’s health or the environment.



  • Nuclear Safety

    Nuclear safety


    IRSN contributes to the safety of existing and future nuclear facilities through a wide range of activities: examining the files submitted by Operators of facilities in operation or under construction, supporting inspection teams from the French safety authority, contributing to the process of updating national and international regulations, developing research programs regarding the prevention of accidents...



  • Overall assessment of safety at basic nuclear installations other than nuclear power plants in France in 2013-2014



    Overall assessment of safety at basic nuclear installations other than nuclear power plants in France in 2013-2014

    This report concerns 73 facilities such as plants, laboratories, facilities for the treatment, disposal and storage of waste, and facilities which have been decommissioned, and 9 research reactors, operated by around twenty different licensees in France.




    Radiation protection

    With ionizing radiation being found in such wide-ranging applications, radiation protection for workers and the public is an essential aspect of IRSN’s activity.


    IRSN is responsible for performing radiological monitoring of the environment throughout France, carries out research and analysis to better understand the exposure of workers exposed to radiation, and works to improve the conditions of patient exposure.



    Emergency and post-accident situations


    In the event of an incident or accident involving sources of ionizing radiation, IRSN provides guidance to public authorities on the technical, public health and medical measures to be taken to protect the population, workers and the environment, while restoring safety at facilities. IRSN's emergency response center can be called in at all times.



    Security and non-proliferation


    IRSN contributes to national and international efforts to control nuclear and sensitive materials and protect facilities against malicious acts, through the enforcement of treaties on control of nuclear and sensitive materials, and the escort of international and national inspection teams.



A global partner

North & South America

51 partnerships with American, Canadien and Cuban organizations.


Contracts and cooperations with NRC, DOE...


Africa & the Middle-East

3 partnerships with local authorities.


Contracts with NNR, FANR, STEG, CNESTEN...


Asia & Oceania

39 agreements with organizations from 6 countries.


European Union

153 agreements with organizations from 19 countries.


Contracts with BNRA, the Dutch Ministry of Economic Affairs, Agriculture and Innovation, GEN-Energija...


Outside European Union

42 partnerships with organizations from other European countries.


Contracts with SNRIU, Novarka...


IRSN  is a global player with 329 active cooperation agreements and contracts in 47 countries.


As a technical safety organization (TSO), IRSN is also operating scientific partnership and providing scientific cooperation and services through agreements with international organizations, and is a founding member or partner in 14 organizations and networks.

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Fields of activity

IRSN contributes to the safety of existing and future nuclear facilities, and to radiological monitoring of the national territory and workers exposed to ionizing radiations.

IRSN offers its expertise and services in nuclear safety, human radiation protection and protection of the environment to authorities and industrials across the world.


IRSN is also an active partner in :

  • Riskaudit a jointly-owned subsidiary of IRSN and its German counterpart GRS, for international technical assessments >Riskaudit website
  • Enstti the European Nuclear Safety Training and Tutoring Institute, a joint initiative of IRS, GRS (Germany), UJV (Czech Republic) and LEI (Lithuania) >Enstti website


IRSN’s research focuses not only on acquiring new scientific knowledge, but also on developing technical tools required to control risks and help expand the Institute's expertise capabilities. These programs are adapted to take into account normative, regulatory, technological, industrial and social issues.