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• 2026:04 3D Discrete Element Modelling of Fluid Injection Induced Fault Slip in Argillaceous Rock – Mt.Terri Fault Slip Experiment

  SSM perspective Background and objective It is a well-known phenomenon that artificial increased in pore pressure at depth, due to subsurface fluid injection, can trigger earthquakes (Walsh and Zoback 2015, and references therein). Increased pore pressures at depth can also occur naturally, for instance due to the pressure changes imposed by a waxing and waning ice sheet. A geological...

  Content type: Publications

• 2026:05 Thermally Induced Fracture Slip in Crystalline Rock: Experimental and Numerical Studies and Safety Implications for Geological Disposal of Nuclear Wastes

  SSM perspective Background and objective High level radioactive waste, such as spent nuclear fuel, will continue to generate heat after the final disposal in an underground repository. The decay heat results in thermal expansion of the repository rock mass which can induce deformation of the fracture system. Near-field effects may involve thermally induced slip of a fracture crossing a...

  Content type: Publications

• 2026:12 Storm surges in Sweden: reconstruction based on geological records

  Summary This study evaluates geological archives and a suite of proxy methods to identify and date past storm-surge events along the Halland coast, southwest Sweden, with a modern analogue site at Löderup in Scania. Using GIS-based site selection, targeted fieldwork and laboratory analyses including dating methods, we tested which coastal settings and methods best record overwash deposits...

  Content type: Publications

• 2026:03 Recent Research on electromagnetic fields and Health Risk, twentieth report from SSM’s Scientific Council on Electromagnetic Fields, 2025

  SSM perspective Background The Swedish Radiation Safety Authority’s (SSM) Scientific Council on Electromagnetic Fields monitors current research on potential health risks in relation to exposure to electromagnetic fields and provides the authority with advice on assessing possible health risks. The Council gives guidance when the authority must give an opinion on policy matters when...

  Content type: Publications

• 2026:02e Radiological Consequences of an Accident Involving a Nuclear-Powered Vessel

  Summary...

  Content type: Publications

• 2026:06 A Human Reliability Analysis (HRA) Taxonomy for Small Modular Reactors (SMR) – Part 1 of 2: Mapping the SMR landscape

  SSM perspective Background Small Modular Reactors (SMRs) are typically presented as a solution for safe and reliable energy, requiring less time to construct than the traditional large reactors. The inherent safety features, higher levels of automation and increased reliance on passive safety are often held as reasons for fewer operators being needed in the daily operations and for handling...

  Content type: Publications

• 2026:11 ENSREG 2nd Topical Peer Review Swedish National Action Plan

  Executive Summary EC Directive 2009/71/Euratom, as amended, (NSD) requires member states to undertake topical peer reviews (TPR) every 6 years, starting in 2017. The topic for the first TPR was ageing management. The member states, acting through the European Nuclear Safety Regulators Group (ENSREG), have decided that the topic for the second topical peer review (TPR-II) is fire safety. The...

  Content type: Publications

• 2026:08e Food contamination from fallout following a nuclear explosion

  Summary After a nuclear explosion, small particles may be dispersed as fallout over large areas and cause radioactive ground deposition. Radiation doses may be received from the fallout in several ways. One such exposure pathway is the ingestion of foodstuffs contaminated by the fallout, either directly or through agricultural production in areas with ground deposition. The Swedish Radiation...

  Content type: Publications