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Using GAMMA dose rate monitoring with inverse modelling techniques to estimate the atmospheric release of a nuclear power plant accident: Application to the Fukushima case

  • O. Saunier
  • , A. Mathieu
  • , D. Didier
  • , M. Tombette
  • , D. Quélo
  • , V. Winiarek
  • , M. Bocquet
  • IRSN Institut de Radioprotection et de Sureté Nucléaire
  • Lamsid/EDF/R and D
  • INRIA Institut National de Recherche en Informatique et en Automatique

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The 'source term' including the time evolution of the release rate to the atmosphere and its distribution between radioisotopes remains one of the key uncertainties in the understanding of the consequences of the Fukushima Dai-ichi accident. Inverse modeling methods have already proved to be efficient to estimate accidental releases. This paper presents a new inverse modeling approach to assess the source term by using gamma dose rate monitoring. The approach is applied to the Fukushima accident. The reliability of the inverted source term is estimated by using model to data comparison and yields a good agreement. An important outcome on this study is its applicability during a response to an emergency situation.

Original languageEnglish
Title of host publicationInternational Meeting on Severe Accident Assessment and Management 2012
Subtitle of host publicationLessons Learned from Fukushima Dai-ichi
Pages422-429
Number of pages8
Publication statusPublished - 1 Dec 2012
EventInternational Meeting on Severe Accident Assessment and Management 2012: Lessons Learned from Fukushima Dai-ichi - San Diego, CA, United States
Duration: 11 Nov 201215 Nov 2012

Publication series

NameInternational Meeting on Severe Accident Assessment and Management 2012: Lessons Learned from Fukushima Dai-ichi

Conference

ConferenceInternational Meeting on Severe Accident Assessment and Management 2012: Lessons Learned from Fukushima Dai-ichi
Country/TerritoryUnited States
CitySan Diego, CA
Period11/11/1215/11/12

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