Din avgränsning ger 275 träffar.
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2014:35 Technical Note, Modelling comparison of alternative biosphere models with LDF models and evaluation of selected parameter values used in the biosphere dose assessment - Main review phase
This report has been prepared as part of the SSM’s Main Review Phase of SKB’s SR-Site performance assessment of the long-term safety of the KBS-3 geological disposal facility (GDF) proposed for construction ... methodology employed in the dose assessment calculations of SR-Site; specifically issues of transport, accumulation and transfers of radionuclides in the near surface environment and the way in which doses to...
Innehållstyp: Publikationer -
2014:07 Technical Note, Review of the geological mapping and geophysical measurement techniques for the determination of critical properties around deposition holes -Main Review Phase
This Technical Note reports the findings of a detailed evaluation of the geological and geophysical methods proposed by SKB with respect to their ability, resolution, performance, reliability and robustness ... focusing on the detection of discriminating fractures intersecting deposition hole positions that may impact long-term safety by enabling either shear movements in excess of those the canisters are designed...
Innehållstyp: Publikationer -
2019:12 Radiological risk assessment for the “Radon” type surface disposal facility in Chisinau, Moldova
consequences of the legacy radioactive waste stored in the RADON-type disposal facility outside Chisinau is of concern for the central government authorities of the Republic of Moldova. A radiological ... assessment of “zero alternative scenario” for the RADON-type of near-surface disposal facility has been conducted. The objective of this risk assessment is to assess the long-term safety conditions of the facility...
Innehållstyp: Publikationer -
2018:08 Calculated radiological consequences of applying European clearance levels to scrap metal from the decommissioning of Swedish nuclear facilities
generate materials with potential or known radioactive contamination. Clearance of materials means a decision that such materials can be released from regulatory control and used or disposed of without restrictions ... restrictions from a radiation protection point of view. According to regulations issued by the SSM, such decisions must be based on thorough measurements of the activity content and it must be shown that the...
Innehållstyp: Publikationer -
2013:36 Technical Note, Review and assessment of aspects of the Qeq concept – Main Review Phase
transport of dissolved constituents in the near field at the Forsmark site, in particular the Qeq abstraction for diffusive transport. SKB uses the Qeq parameter to scale concentration gradients in order ... order to estimate dissolved-species fluxes from the far-field environment to the canister surface and from a canister breach to the far field. To accomplish the review assignment, we (i) reviewed relevant...
Innehållstyp: Publikationer -
2013:20 Terrestrial Biosphere Modelling of C-14 Research
time. However, because of its role in biological processes and its ecological cycling, the standard methods employed to model long-term radionuclide transport and accumulation in the biosphere cannot be ... 14C. In 2011, the Swedish Radiation Safety Authority (SSM) commissioned a study to develop a 14C model of the soil-plant-atmosphere system that would provide an independently modelling capability in order...
Innehållstyp: Publikationer -
2014:34 Technical Note, Modelling Comparison of Simple Reference Biosphere Models with LDF Models – Main Review Phase
development of simple reference biosphere models as a means of exploring the Landscape Dose Factor (LDF) approach adopted by SKB in the SR-Site safety assessment for the proposed final disposal of spent nuclear ... fuel at the Forsmark site. The models are developed and described in a systematic manner, based on international guidance reflected in the International Atomic Energy Agency’s BIOMASS approach. The context...
Innehållstyp: Publikationer -
2012:32 Technical Note, Groundwater Chemistry in SKB’s Safety Assessment SR-Site: Initial Review
This preliminary review of SR-Site is focused specifically on the treatment of groundwater chemistry in the description of the Forsmark site and in the long-term safety of a deep geological repository ... compositions of groundwaters have contributed to a site descriptive model (SDM) for Forsmark. In that SDM, groundwater chemistry is interpreted for several purposes. The main outputs are the description of present-day...
Innehållstyp: Publikationer -
2012:53 Technical Note, Review of Engineering Geology and Rock Engineering aspects of the operation and closure of a KBS-3 repository at the Forsmark site – Initial Review Phase
Engineering Geology and Rock Engineering aspects of the operation and closure of a KBS-3 repository at the Forsmark site in Sweden. The review assignment is part of a Swedish Radiation Safety Authority (SSM) Initial ... behalf of SRK. Therefore some of the views expressed in the review report may not totally represent those of the company (SRK). In general SRK is satisfied with the efforts of SKB in dealing with the engineering...
Innehållstyp: Publikationer -
2008:09 The Generalised Ecosystem Modelling Approach in radiological assessment
capability is required by SSI in order to evaluate dose assessments carried out in Sweden by, amongst others, SKB. The main focus is the evaluation of the long-term radiological safety of radioactive waste repositories ... tool for use in biosphere dose assessments, SSI through its modelling team CLIMB commissioned the development of a new model in 2004, a project to produce an integrated model of radionuclides in the landscape...
Innehållstyp: Publikationer