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  • 2023:14 Effect of gamma-irradiation on the redox states of the structural iron in bentonite clay

    SSM perspective Background Bentonite clay is used as buffer and backfill material which form engineered barrier in the spent fuel repository. The buffer material surrounding the copper canister will be exposed to gamma and neutron radiations, especially during the first few hundred years after closure of the repository. The redox states of the structural iron in montmorillonite, the dominant...

    Innehållstyp: Publikationer
  • 2012:61 Geochemical Constraints on Buffer Pore Water Evolution and Implications for Erosion

    Mineralogical data from the Forsmark Site show that smectite and calcite occur at all depths in Forsmark fractures, with no evidence for removal/dissolution by previous glacial episodes.  This natural analogue information implies that these minerals may not have been eroded/dissolved during previous glacial episodes. Available thermodynamic data suggest that repository-depth Forsmark...

    Innehållstyp: Publikationer
  • 2014:20 An evaluation of high-temperature creep of zirconium alloys: data versus models

    In this report Dr Massih presents correlations for creep in different phases of zirconium alloys and also presents a general solution to the difficulty of accurately describing the material properties in phase transition for several zirconium alloys. Based upon superplasticity relations, models are adapted to fit with experimental data for materials in transition regions. The creep models are...

    Innehållstyp: Publikationer
  • Ny kärnkraft står på agendan under IAEA:s generalkonferens

    Hur myndigheter hanterar ansökningar om ny kärnkraft, att samordna stödet till Ukraina och slutförvar av använt kärnbränsle. Det är några av frågorna som kommer att diskuteras på IAEA:s stora generalkonferens i Wien som hålls i veckan...

    Innehållstyp: Nyheter
  • SSMFS 2008:3 Strålsäkerhetsmyndighetens föreskrifter och allmänna råd om kontroll av kärnämne mm

    Du kan ladda ner eller beställa Strålsäkerhetsmyndighetens föreskrifter och allmänna råd (SSMFS 2008:3) om kontroll av kärnämne mm, se nedan. Vid beställning av den här föreskriften får du den konsoliderade versionen skickad till dig. Konsoliderad version är en version av föreskrifterna där alla ändringar har förts...

    Innehållstyp: Publikationer
  • 2013:27 Numerical simulations of headed anchors break in reinforced and non-reinforced concrete structures

    The design codes for anchorage of equipment in concrete structures have been developed since the time the Swedish power plants were designed. Furthermore, the design basis has been updated and in some cases new mechanical loads have been added. As a consequence, it can be difficult for some anchorages to meet the requirements of today. In the design of anchorage equipment the beneficial effect...

    Innehållstyp: Publikationer
  • Internationell strålsäkerhetsutbildning i Stockholm ger deltagarna praktisk kunskap

    Med strålskyddsexperter från hela världen och fokus på praktiska övningar och fallstudier ska International Radiological Protection School (IRPS) ge yrkesverksamma från över 20 olika länder möjlighet till fördjupning och ökad förståelse för internationella strålskyddsfrågor.

    Innehållstyp: Nyheter
  • 2011:34 Evolution of hydrogen by copper in ultrapure water without dissolved oxygen

    One result from this research was that the experimental difficulties of repeating Hultqvist and co-workers work are considerable and were initially underestimated. The main challenge was to obtain satisfactory tightness of all connectors involved in the experimental set-up. The problems with leakage resulted in that the research program originally planned for in this project had to be reduced...

    Innehållstyp: Publikationer
  • 2013:28 Brine intrusion by upconing for a high-level nuclear waste repository at Forsmark. Scoping calculations

    The objective of this study is to evaluate the possibility of salt-water migration to the spent nuclear repository. This objective is motivated by the adverse impacts of water with too high salinity entering the repository and by the uncertainty of the relevant hydraulic and hydrogeochemical conditions at the Forsmark site at great depths. To analyse density dependent flow and salt transport...

    Innehållstyp: Publikationer
  • 2017:15 Radionuclide release rates associated with bounding cases featuring relatively early canister failures in a spent fuel repository

    Background In 2011 the Swedish Nuclear Fuel and Waste Management Co (SKB) submitted a license application for construction of a geological repository for spent nuclear fuel according to the KBS-3 method, comprising of copper canisters, bentonite buffer, backfill and surrounding crystalline bedrock. The post-closure safety assessment of the repository, SR-Site, has been reviewed by the Swedish...

    Innehållstyp: Publikationer