RadChem 2010

Session

Chemistry of Nuclear Fuel Cycle, Radiochemical Problems in Nuclear Waste Management 4

NFC4

23 Apr 2010, 03:00

Casino Conference Centre

95. Characterization of Portuguese geomaterials, the clay component of rañas, as potential liners for low and intermediate radioactive disposal sites

Dr Maria José Madruga (Nuclear and Technological Institute (ITN), Portugal)

23/04/2010, 03:00

Chemistry of Nuclear Fuel Cycle, Radiochemical Problems in Nuclear Waste Management

Verbal

Safety assessment of low and intermediate level waste repositories requires the understanding of radionuclides sorption-desorption mechanisms, mainly the degree of interaction between radionuclides and mineral surfaces with the aim to analyse processes that can affect the safety of the repository at both near and far-field zones. Among the different radionuclides that are part of the...

114. Long term diffusion experiment (LTD) in Grimsel URL: Comparison of modeling and in-situ results

Mrs Václava Havlová (Nuclear Research Institute Řež plc.)

23/04/2010, 03:20

Chemistry of Nuclear Fuel Cycle, Radiochemical Problems in Nuclear Waste Management

Verbal

Phase 1 (2005 – 2008) of the long term diffusion experiment (LTD) project has taken place in the Grimsel underground research laboratory (GTS, Switzerland) in a joint effort between NAGRA (Switzerland), University of Bern (Switzerland), NRI Rez (Czech Republic), HYRL (Finland), JAEA (Japan) and AIST (Japan). The project aim was to study matrix diffusion of radionuclides relevant to performance...

249. Migration characteristics of rock samples studied by electromigration method: methodology: procedure modification

Mr Petr Večerník (Nuclear Research Institute Řež plc.)

23/04/2010, 03:40

Chemistry of Nuclear Fuel Cycle, Radiochemical Problems in Nuclear Waste Management

Verbal

In several concepts of deep geological repository (DGR) development granites are considered as potential hosts rocks (Sweden, Finland, Czech Republic) . Safety calculations, evaluating safety functions of DGR barriers, require information about radionuclide migration within fractured rock formations, where advection and matrix diffusion are considered as the most important processes for...