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  • 2011:26 The influence of temperature and fluid pressure on the fracture network evolution around deposition holes of a KBS-3V concept at Forsmark, Sweden

    preparation for the review of SKB’s license application for disposal of spent nuclear fuel, SSM is conducting studies to evaluate the performance of the multi-barrier principle on which the KBS-3 concept is based ... providing new pathways for the spent fuel to escape the repository. For SSM, the goal of this study is to improve the scientific basis for the evaluation of the performance of the bedrock as a barrier...

    Innehållstyp: Publikationer
  • 2009:17 Effect of Welding Residual Stresses on Crack Opening Displacement and Crack-Tip Parameters

    Weld residual stresses have a large influence on the behavior of cracks growing under normal operation loads and on the leakage-flow from a through-wall crack. Accurate prediction of these events is important ... evaluating the stress intensity factor K for cracks located in multi-dimensional weld residual stress fields in piping geometries. Another aim is to investigate the accuracy of existing methods to evaluate...

    Innehållstyp: Publikationer
  • 2011:08 Workshop on Copper Corrosion and Buffer Erosion Stockholm 15-17 September 2010

    In SSM:s preparation for reviewing SKB:s license application for disposal of spent nuclear fuel, a series of technical workshops have been conducted. The main purpose of this type of workshops is to get ... get an overall understanding of the state of knowledge on interdisciplinary issues as well as of questions in the research front by inviting several experts. Previous workshops have addressed the overall...

    Innehållstyp: Publikationer
  • 2018:21 Research on Resaturation of Bentonite Buffer

    Previous THM-modelling showed that the re-saturation time is strongly dependent on the hydraulic conditions in the near-field of the repository. Moreover, it is difficult to predict the degree of homogeneity ... illustration of homogeneity are important for SSM's judgement of the long-term safety of spent fuel repository. Results This report consists of three parts: (1) Research on Resaturation of Bentonite Buffer – Hydrological...

    Innehållstyp: Publikationer
  • 2022:08 Geophysical surveys on sub marine land- and rock slides and on alpine glaciers

    SSM perspective Background The future climate evolution and the impact it might have on a repository for radioactive waste is important when assessing the long-term safety. In a project funded by SSM (Holmlund ... wasting on the bottom of the deep trough through the Southern Quark were found. The genesis, timing and size of these deposits are important to resolve in order to assess their potential impact on nuclear...

    Innehållstyp: Publikationer
  • 2010:24 On Cost Estimate for Decommissioning of one Isotope Central

    sustainable and long term credibility of the Swedish financing system for nuclear waste liabilities. SSM conducts systematic examinations and reviews of the estimates submitted by the Swedish nuclear industry ... study for “bench-marking” purposes, in such cases when there is a need to supplement and correct field data from the industry. In the present study, data has been retrieved and organized such that the...

    Innehållstyp: Publikationer
  • 2019:27 Effect of residual stress on ductile fracture at low primary loads – Numerical study

    SSM perspective Background Present report is a continuation of earlier work reported in SSM2009:27 regarding an analysis strategy for fracture assessment of defects in ductile material and SSM2011:19 on ... on the influence from residual stresses on crack initiation and ductile crack growth at high primary loads. The Swedish procedure for safety assessment of components with defects is documented in a handbook...

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

    PCO2, SiO2(aq) and Na/Ca in groundwaters (and any future intruding glacial meltwaters) in the near-field at the site. This conclusion would not be evident from modelling approaches using mixing only. Modelling ... suggesting that the buffer may be partially altered prior to glacial meltwater intrusion. David Savage SSM English Mineralogical data from the Forsmark Site show that smectite and calcite occur at all depths...

    Innehållstyp: Publikationer
  • 2024:17 Atomistic studies on the adsorption and desorption of radionuclides on fuel crud and system surfaces in Light Water Reactors

    SSM perspective Background Radiation safety is of particular concern during power plant maintenance. Radionuclides produced by the neutron bombardment in the core during operation may accumulate on system ... filter system or piping and contribute to the radiation field. Some ions that are prone to neutron capture often become trapped in the deposits on the fuel cladding surfaces, also called CRUD. It is important...

    Innehållstyp: Publikationer
  • 2019:04 Dosimetry in environments surrounding a laser-plasma accelerator

    SSM perspective Background Modern laser technology makes it possible to generate ultrashort pulses with a very high peak power. At the Lund Laser Centre, a high-power laser facility in Lund, Sweden, laser ... laser pulse whereas the heavier ions largely remain in place, resulting in a very strong electrical ­field. The research conducted in the fi­eld is spurred by the potential to create applications where charged...

    Innehållstyp: Publikationer