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IRSN, Institut de radioprotection et de sûreté nucléaire

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Enhancing Nuclear Safety


Research

Resarch programmes

The research actions of the TRASSE GNR


Calls for proposals in 2008 and 2009 enabled several research actions to be launched in the framework of TRASSE GNR, the national research grouping comprising the IRSN and the CNRS. The actions projects are listed below.
 
 

Research line 1: Study of transfers of natural and artificial radionuclides in the soil, the water table and to plants

 

  • Experimental physical-chemical study of the trapping of actinides and fission products by organo-ferric colloids (Action 2008-1A)
    LMTG/UMR 5563 – LEGOS/UMR 5566
  • Transfer times of the water from the water table and plumes of radionuclides from the trench T22 of Chernobyl. Constraints on the hydrogeological models applied to time intervals ranging from the present time to 50 years (Action 2008-1B)
    GIS/CEREGE/UMR 6635 – CNAB/UMR 5084 – LSCE/UMR 1572 – CAREN/UMR 6118 – IDES/UMR 8148 – LR2S / SARG - IGS 
  • Analysis of the bacterial diversity of the soil along the length of trench T22 of the experimental platform of Chernobyl, prior to the study of the role of bacteria in terms of transfer (Action 2008-1C)
    CNAB/UMR 5084 – LIPM/UMR 6191 - IVV/UMR 1219 - LR2S / SARG – LRE / SECRE
  • Transfer of radionuclides in the non-saturated zone towards the aquifer of the pilot site of Chernobyl (Action 2008-1D)
    LR2S / SARG – SECRE/LRE – LTHE/UMR 5564
  • Bacterial populations of the soil of trench T22 of the Chernobyl platform: diversity, dynamics and interactions with the radionuclides (Action 2009-1A)
    CNAB/UMR 5084 – LIPM/UMR 6191 - IVV/UMR 1219 - LR2S / SARG – SECRE/LRE – IBC/UMR 6543
  • Synthesis of knowledge concerning the effects of ionizing radiation on plant communities. A prerequisite for defining the future studies in the exclusion area of Chernobyl, more particularly around the site of trench T2 (Action 2009-1B)
    LRE / SECRE – RIARA – IGS – UIAR – CNRS

 

 

Research line 2: Study of the containment capacities of an argillaceous geological formation and the induced transfers to ecosystems

 

  • Cryptic faults in the argillite formation of the Tournemire tunnel: study of the microfabric, the microstructure and Vp-(Vs) of the argillite (Action 2008-2A)
    LMTG/UMR 5563 – IPGS/UMR 7616 – LR2S / SARG
  • Characterization of short and medium-term concrete/clay interactions: studies of structured analogues of the experimental station of Tournemire and comparative analyses in the laboratory (Action 2008-2B)
    GIS/CEREGE/UMR 6635 – /LR2S / SARG – CAREN/UMR 6118 – Se3D/CEREGE/UMR 6635 – MNHN/UMR 5143
  • Study of the gases dissolved in the poral water of the Tournemire argillite: characterization of the stages of development of the EDZ (damaged zone) between 0 and 125 years and diffusion properties on the scale of the formation (Action 2008-2C)
    CNAB/UMR 5084 – LR2S / SARG
  • Seismic modelling and imaging of a fault zone in the Tournemire argillite (Action 2008-2DD - 1st subdivision of action 2008-2D)
    IPGS/UMR 7516 – LR2S / SARG
  • CRS-based reprocessing of 3D data from Tournemire (Action 2008-2DE - 2nd subdivision of 2008-2D action)
    MIGP/UMR 5212 – LR2S / SARG
  • Characterization of faults by tomography using the adjoint state methods (Action 2008-2DF - 3rd subdivision of action 2008-2D)
    ENSMP/SISYPHE/UMR 7619 – LR2S / SARG 
  • Prospective study on the contribution of chlorine isotopes in the investigation of advection transport phenomena through fractures and their impact on distribution within the argillaceous matrix (Experimental Station of Tournemire) (Action 2008-2E)
    GIS/CEREGE/UMR 6635 – LR2S / SARG
  • Study of the bacterial biodiversity at the steel-argillite interface in situ in the Tournemire tunnel (Action 2009-1C)
    IPREM/UMR 5254 – SSIAD/BERIS – /LR2S / SARG


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