Advanced Safety Assessment Methodologies: Extended PSA
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19 April 2017 Final ASAMPSA_E reports

The ASAMPSA_E reports, as submitted to the European Commission, are now available on the ASAMPSA_E website.

More information and access reports >



31 December 2016 Final ASAMPSA_E reports are being approved

The ASAMPSA_E reports will be available on the ASAMPSA_E website until 15 February 2017. Last comments can be sent before 10 February 2017 to the ASAMPSA_E coordinator at

More information and access reports >


2-7 October 2016 ASAMPSA_E contribution to the PSAM 13 in Seoul (Korea)

 ASAMPSA_E summary (PDF – click to download): at a special session SS 3 on External Hazards PSA.

A-150 How to Introduce Hazards in Level 1 PSA and All Possibilities of Events Combination. Examples of Learnings from the European ASAMPSA_E Project Manorma KUMAR (LR) Joakim KLUG (LR), Emmanuel RAIMOND (IRSN), Jan PROCHASKA (VUJE)

A-151 Probabilistic Safety Assessment for Shutdown States of Reactors, Spent Fuel Pool and Recent R&D Results Manorma KUMAR (LR) Anders OLSSON (LR), Horst LOEFFLER (GRS), Emmanuel RAIMOND (IRSN)


12-14 September 2016 ASAMPSA End-Users Workshop

Hosted by the Vienna University, the workshop has gathered more than 60 participants from the 30 following organisations : AMEC, AREVA, AREXIS, BEL V, CRIEPI-NRRC, EDF (France and UK), ENEA, ENSI, GRS, HAVSBRUS CONS. AB, IAEA, IEC, INRNE, IRSN, JANSI, JSI, KAERI, KEPCO, KHNP, KINS, Kozloduy NPP, LEI, Lloyd’s Register, NCBJ, NIERING, NRG, NUBIKI, RATEN ICN, RSE, SSTC, TRACTEBEL ENGIE,TUS, UNIVIE, US NRC, VUJE, WESTINGHOUSE.

All ASAMPSA_E guidance reports have been discussed and proposals for improvements have been formulated.  This was also an opportunity to discuss further needs related to extended PSA methodologies.


20 July 2016 First versions of all guidance reports of ASAMPSA_E now available

The peer review of these reports is ongoing and results will be discussed during the coming ASAMPSA_E workshop from 12 to 14 September 2016.

More information and access reports >


20 May 2016 Announcement: ASAMPSA_E 2nd end-users workshop

The second ASAMPSA_E workshop on “Reviewing and discussing the ASAMPSA_E guidance reports for the development and use of extended PSA for NPPs” will be held from 12-14 September 2016. The workshop is hosted by the Vienna University and its preparation is coordinated by IRSN (France) and ICN (Romania).

This event is open to the organisations that have expertise in PSA developments and applications (or in hazards assessment) and that contribute to the ongoing survey/review of the reports produced by the ASAMPSA_E group.

More information and access reports >


24 Oct 2014 ASAMPSA_E present at EGU 2015

The EGU General Assembly 2015 will bring together geoscientists from all over the world to one meeting covering all disciplines of the Earth, planetary and space sciences. The event will be held from 12 – 17 April 2015 in Vienna. The EGU aims to provide a forum where scientists can present their work and discuss their ideas with experts in all fields of geoscience.

The ASAMPSA_E project will co-convene two sessions during the event on:

  • The implementation of external hazards in Probabilistic Safety Assessment for nuclear power plants
  • Assessing extreme natural events for the safety of nuclear power plants

We invite the organisations that are involved with these topics to communicate on this.

Learn more on the event here >


23 Oct 2014 Presentation on the objectives and the progress of the ASAMPSA_E project now available

Download presentation here >


23 Oct 2014 Recommendations from first End-Users Workshop now available

A summary report of the recommendations resulting from the project’s first end users workshop organised in may is now available.

Download report here >


3 Apr 2014 ASAMPSA_E end-users workshop in May

The first ASAMPSA_E end-users workshop, coordinated by IRSN and hosted by Vatenfall, will take place on 26-28 May 2014 in Sweden, under the theme “Where must efforts be placed to establish useful guidance (or complete existing ones) for the development and use of extended PSA for NPPs?”

Its objective is to promote discussions to identify some of the priorities for the ASAMPSA_E project.

The workshop is open to all organisations that have answered the ASAMPSA_E survey.

More information on the event  is available here.


21 Nov 2013 The first ASAMPSA_E survey has been initiated

A questionnaire has been sent to nuclear stakeholders, including utilities, vendors, safety authorities and their technical support, and research companies. Answers will be summarised and discussed during an international workshop that will be organised around March 2014. This workshop will be open to all stakeholders who contributed to the survey.

This survey will help to specify the needs for guidance in performance and application of extended PSA and collect experience of past high amplitude external hazards close to NPPs.


4 Nov 2013 ASAMPSA_E launches its website

The ASAMPSA_E  website is now online. It features information on the project such as the objectives that have been set, the organisation structure and partners in the consortium. It will also keep you up-to-date with latest news and upcoming events. Make sure to visit us regularly!


17 Oct 2013 ASAMPSA projects presented at FISA 2013

ASAMPSA2 and ASAMPSA_E were presented by the project team at FISA 2013, a conference on research and training in reactor systems, which was held from 14-17 October 2013 in Vilnius, Lithuania. The project presentation and submitted paper, including the the links to the other presentations given at the conference are now available below:

25 Sep 2013 ASAMPSA_E technical meetings

A series of ASAMPSA_E  technical meetings were hosted by the Vienna University in Austria from 17-20 September 2013. They gathered more than 40 experts to discuss the first steps of the projects and distribute tasks among the partner organisations.


1 July 2013 ASAMPSA_E project kicks off

The ASAMPSA_E project, follow-up of ASAMPSA2, was officially launched by its Coordinator IRSN, the French Institute for Radiological Protection and Nuclear Safety and the 27 project partners,with the kick-off meeting that was held on 1 July 2013 at its premises near Paris.

ASAMPSA_E aims to promote good practices for the identification of critical situations with the help of PSAs and for the definition of appropriate criteria for decision-making in Europe. It offers a new framework to discuss at a technical level how “extended PSA” can be developed efficiently and be used to verify if the robustness of Nuclear Power Plants (NPPs) in their environment is sufficient.

The project partners are now working on the first stages of the project. An open international workshop will be organised around March 2014.


Events calendar

12-14 September 2016

Reviewing and discussing the ASAMPSA_E guidance reports for the development and use of extended PSA for NPPs

Location: Vienna University
More information and access reports >>

23-27 November 2015

Event: ASAMPSA_E technical meetings

Location: IRSN, Fontenay-aux-Roses


  • - Earthquake, flooding, extreme weather, lightning, biological infestation, man-made hazards, aircraft crash: event modelling and implementation in PSAs

  • - Risk metrics, PSA and DiD, screening methodologies

  • - Use of level 2 PSA for severe accident management optimisation

  • - Recent results of research for level 2 PSA.

 More events 

28 Partners

28 organisations in 18 European countries are partners in the ASAMPSA_E project.

3 additional associated partners are members of the External Experts Advisory Board (EEAB).

The project is open to collaboration with other organisations that have a broad experience in the field.

Take a look at all partners here.