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  • 2012:64 Finansiella aspekter vid avveckling av kärnkraftverk (BWR)

    I studien presenteras i vilka situationer som en parametrisk ansats är tillämplig. Resonemang sätts in i en autentisk kontext genom att referenser görs till de förberedande aktiviteter som idag genomförs vid Barsebäcksverket. En tentativ slutsats är att den valda metoden är lämplig för att göra uppskattningar av de framtida kostnader...

    Innehållstyp: Publikationer
  • Extern granskning: Technical note och Internationell granskning

    Som en del av Strålsäkerhetsmyndighetens granskning 2011–2018 tog myndigheten hjälp av externa granskare för avgränsade frågor. Det genomfördes även en internationell expertgranskning som samordnades av The Nuclear Energy Agency (NEA).

    Innehållstyp: Artiklar
  • 2012:21 Technical Note, Initial Review Phase for SKBs Safety Assessment SR-Site: Corrosion of Copper

    The uniform and localized corrosion treatments as well as stress corrosion cracking positions currently considered by SKB have been examined with the objective of identifying key unresolved issues or gaps, needs and opportunities. In conjunction with the review of the SKB reports listed in Appendix 1, there has been some consideration of the broader literature. This summary highlights the...

    Innehållstyp: Publikationer
  • 2012:35 Technical Note, Review of SKB’s Code Documentation and QA for the SR-Site Safety Assessment

    This initial review examined the Swedish Nuclear Fuel and Waste Management Company (SKB) code documentation and quality assurance, which is important to the safety assessment SR-Site because the computer codes used must be both suitable for the analyses performed and capable of producing accurate results for those analyses. SKB has prepared a report that summarizes the code documentation...

    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 at Forsmark. Data for the chemical and isotopic compositions of groundwaters have contributed to a site descriptive model (SDM) for Forsmark. In that SDM, groundwater chemistry is interpreted...

    Innehållstyp: Publikationer
  • 2012:17 Technical Note, Corrosion of copper canister

    It is expected that the inflow of ground water to the deposition holes and tunnels in the Forsmark repository will be very slow. Thus, it might take some few hundred years up to thousand years before the deposition holes are filled with ground water and it might take 6000 years or more before the bentonite buffer is fully water saturated and pressurized. The copper canisters will therefore...

    Innehållstyp: Publikationer
  • 2012:29 Technical Note, Initial review of chemical and erosional processes within the buffer and backfill – Geochemical processes

    De dokument i SR-Site som är relevanta till detta granskningsområde bedöms vara generellt i tillräckligt hög kvalitet för att utgöra underlagsmaterial för vidare granskning i huvudgranskningsfasen av SSM:s GLS- (granskning av långsiktig säkerhet) projekt. Behov av kompletterande information eller förtydliganden har dock identifierats inom...

    Innehållstyp: Publikationer
  • 2009:33 Workshop on spent fuel performance, radionuclide chemistry and geosphere transport parameters, Lidingö 2008: Overview and evaluation of recent SKB procedures

    The safety assessment for disposal of spent nuclear fuel canister in the Swedish bedrock should thoroughly address the time period after a containment failure. Such a failure could be expected as a result of corrosion damage or mechanical failure due to rock movement. This report mainly covers some issues connected to parameters used for radionuclide transport calculations in the areas of...

    Innehållstyp: Publikationer
  • 2010:12 An Evaluation of Models of Bentonite Pore Water Evolution

    The pore-water composition of a KBS-3 bentonite buffer may gradually change as a result of reaction between groundwater and buffer minerals. The rather minor occurrences of the most rapidly reacting minerals in the buffer will have the most immediate and observable influences, but contributions from slow reactions of the main bulk clay phases cannot be ruled out. The performance implication...

    Innehållstyp: Publikationer
  • 2010:09 Copper Thermodynamics in the Repository Environment up to 130˚C

    The mechanisms of copper corrosion for a KBS-3 repository for spent nuclear fuel need to be known with a high level of confidence. This is because the overall rate of copper canister corrosion (accounting for corroding species concentrations, geochemical conditions and the mass transport through surrounding barriers) provides an essential performance indicator in safety assessment. A...

    Innehållstyp: Publikationer