Working Group 7

Tritium Accidents

Objectives

The Working Group focused on the development of a dynamic reference model that allows the estimation exposure to tritium subsequent to accidental releases. For this purpose, the processes involved in the transfer of tritium in the environment were analysed in dependence on the environmental conditions, season and time of the day. A main issue was the integration of actual weather data to enable reliable estimation of the tritium behaviour.

Documents

• First Working Group Meeting held from 19 to 23 January 2009, IAEA headquarters, Vienna:
  
  Minutes; Presentation 1
  
• Second Working Group Meeting held from 28 to 29 September 2009, EDF R&D, Chatou, France:
  
  Minutes; Meeting Notes; Presentations: Introduction; Priorities; Processes; Uncertainty; CEA-Valduc; SOLVEG2; Cernavoda; ETMOD; D2O; Behaviour; UFOTRI; FDMH-RODOS; Gaps in Knowledge; Mammals; AQUATRIT; Simple Models; TOCATTA; Role; Kinetic;
  Predict; Threshold; Aquatic Model
  
• Third Working Group Meeting held from 25 to 29 January 2010, IAEA headquarters, Vienna:
  
  Minutes; Participants List; Presentations: ITER Organization;
  KIT Germany; Night Experiments; Fish; SOLVEG HTO; Soil-Water;
  Plant-Soil; MAGENTC; Interaction Matrix; OURSON Code; Tritium Washout; Snow; Air and Rain; Brazil; AQUATRIT; Fish Preliminary Results; Uptake by Crops; Crop Growth; ONTARIO HYDRO; OBT;
  Tritium Experiments; India
  
  
• Fourth Working Group Meeting held from 6 to 9 September 2010, National Institute of Radiation Safety (IRSN), Aix-en-Provence, France:
  
  Minutes; Presentations: Czech NPP; Updated DRL; Tritium interaction matrix; Associated processes; Wet deposition; Russian work; Status IFIN; Fish Bioenergetics; Aquatic model; Aquatic processes tropical; Updated AQUATRIT; Fish OBT; Fish scenario; SU methods; Farm animals; Experimental data; Daytime and night time; Tomato and potato; SOLVEG code; SPEED-MP; Modelling optimisation; Photo: ITER Site
  
  
• Fifth Working Group Meeting held from 24 to 28 January 2011, IAEA headquarters, Vienna:
  
  Minutes; Presentations: Uncertainty; Tritium Interaction Matrix; Interaction Matrices; OBT in Day Time; Precursors; Plant OBT Model; OBT in Night Time; SOLVEG; CLASS; Critical Parameters;
  OBT French NPPs; Dynamic Transfer; Modelling Tritium; Washout
  
  
• Sixth Working Group Meeting held from 12 to 15 September 2011, Parliament Hotel, Bucharest, Romania:
  
  Minutes; Presentations: QA for OBT; Interaction Matrix; Experimental Work; Wheat Scenario; Statistical Performances; Tritium Washout; Aquatic Pathways; HT and HTO; HTO Uptake; Overview OBT; Review on Soil-Plant; Development Prospects; TOCCATA Status; Farm Animals; Key Processes;
  Planned OBT Experiments; Kazakhstan
  

For further programme-specific information please contact MODARIA or EMRAS II.

Contacts

• Working Group Leader: Mr Dan Galeriu, Institute of Physics and Nuclear Engineering "Horia Hulubei", Romania
  
  
• Scientific Secretary: Mr Volodymyr Berkovskyy, IAEA, Department of Nuclear Safety and Security