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  • 2022:02 APRI-10 - Slutrapport

    SSM perspektiv Bakgrund Strålsäkerhetsmyndigheten (SSM) har sedan början på 1990- talet finansierat forskning inom svåra haverier, då dåvarande SKI finansiellt bidrog till en professur och utvecklandet av avdelningen för kärnkraftsäkerhet på KTH. Inriktningen har varit att studera och verifiera den svenska haverihanteringen vid svårt...

    Innehållstyp: Publikationer
  • 2021:20 Effects of additives on UO2 fuel behavior: expanded edition

    SSM perspective Background The Swedish Radiation Safety Authority (SSM) follows the development of nuclear fuel closely. Fuel with additives like chromia and gadolinia is used in Swedish reactors and fuel with even better thermal and mechanical properties is under development. This project is an in-depth study of data and models regarding the impact of additives on the properties of uranium...

    Innehållstyp: Publikationer
  • 2009:19 Review of SKB’s Quality Assurance Programme

    SKB is preparing a license application for the construction of a final repository for spent nuclear fuel in Sweden. This application will be supported by the safety assessment SR-Site for the post-closure phase. The assessment of long-term safety is based on a broad range of experimental results from laboratory scale, intermediate scale and up to full scale experiments. It is essential that...

    Innehållstyp: Publikationer
  • 2008:10 International Expert Review of SR-Can: Engineered Barrier Issues

    The Swedish Nuclear Fuel and Waste Management Company (SKB) has recently submitted a license application for the construction of a spent fuel encapsulation plant. SKB plans to submit a further license application in 2009 for the construction of a repository for the disposal spent nuclear fuel. In connection with the first of these applications, SKB published a safety report, known as SR-Can,...

    Innehållstyp: Publikationer
  • 2009:09 Analysis of three sets of SWIW tracer test data using a two-population complex fracture model for matrix diffusion and sorption

    For the non-sorbing tracer uranine, both the finite and the semi-infinite populations play a distinct role in controlling BTC. For the sorbing tracers Cs and Rb the finite population does not saturate, but acts essentially semi-infinite, thus the BTC behaviour is comparable to that obtained for a model containing only a semi-infinite rock matrix. The ability to match BTC for both sorbing and...

    Innehållstyp: Publikationer
  • 2007:29 Intercomparison of Cement Solid-Solution Models

    Many concepts for the geological storage of radioactive waste incorporate cement based materials, which act to provide a chemical barrier, impede groundwater flow or provide structural integrity of the underground structures. Thus, it is important to understand the long-term behaviour of these materials when modelling scenarios for the potential release and migration of radionuclides. In the...

    Innehållstyp: Publikationer
  • 2017:03 Inverkan av inre tryck på sprickytan vid gränslastanalyser

    Bakgrund ProSACC är en programvara som med dokumenterat gott resultat kan utföra brottmekaniska beräkningar på ett snabbt sätt med hög kvalitet. Forskningsrön som Strålsäkerhetsmyndigheten (SSM) är med och tar fram implementeras ofta i programvaran.

    Innehållstyp: Publikationer
  • 2017:01 Stabilitet och flexibilitet i ledningssystem

    Bakgrund Strålsäkerhetsmyndigheten (SSM) ställer krav på att kärnteknisk verksamhet ska ledas, styras, utvärderas och utvecklas med stöd av ett ledningssystem som är utformat så att kraven på säkerhet uppfylls. Ledningssystemet, inklusive tillhörande rutiner och instruktioner, ska hållas aktuellt och vara dokumenterat. SSM ställer...

    Innehållstyp: Publikationer
  • 2015:25 Design Guide for Nuclear Civil Structures (DNB)

    The Swedish Radiation Safety Authority (SSM) and the Swedish licensees have previously in a jointly funded research project developed a design guide for civil structures at Swedish nuclear facilities to be based on Eurocodes, DNB. The report was published in January 2014 as SSM Report 2014:06. To further improve DNB and to ensure that the fundamentals of the recommendations will be applied...

    Innehållstyp: Publikationer
  • 2010:25 Modelling Coupled Processes in the Evolution of Repository Engineered Barrier Systems using QPAC-EBS

    Currently in Sweden, the SR-Site safety assessment for a spent nuclear fuel repository is being developed by the Swedish Nuclear Fuel and Waste Management Company (SKB). The planned SSM review of this work requires access to a sufficient modelling capability to assess the combined performance of the engineered barriers (spent fuel canister, buffer and backfill) and the natural geosphere...

    Innehållstyp: Publikationer