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2022:05 Granskning av berättigandeprocessen inom röntgendiagnostik
SSM perspektiv Bakgrund Av SSM:s tillsynsprogram för hälso- och sjukvården framgår att fokus i tillsynen av patientstrålskydd inom medicinsk röntgenverksamhet ska läggas på kontroll av att det finns fungerande rutiner för berättigandebedömning. Att säkerställa att de radiologiska undersökningar som utförs är berättigade...
Innehållstyp: Publikationer -
2022:03 Effect of Neutron Irradiation on the Oxidation and Corrosion of Austenitic Stainless Steels
SSM perspective Background Reactor pressure vessel internal components of austenitic stainless steel located close to the core are subject to a high neutron flux. Irradiation by fast neutrons induces changes in the material that affect microstructure, mechanical properties and microchemistry. These changes eventually lead to an increased susceptibility to irradiation assisted stress corrosion...
Innehållstyp: Publikationer -
2022:15 Strukturer och ledarskap för organisatorisk funktionalitet som främjar säkerheten genom ett kärnkraftverks olika faser och övergångarna däremellan
SSM perspektiv Bakgrund Kärnkraftsindustrin står inför en rad utmaningar framöver, exempelvis avseende åldrande reaktorer, generationsskifte i personalstyrkan, bristande kompetensåterväxt, politiska beslut och konkurrens från andra energislag. Två svenska anläggningar står dessutom inför utmaningen att avveckla delar av verksamheten samtidigt...
Innehållstyp: Publikationer -
2017:09 Evaluation of the Swedish participation in the Nordic Nuclear Safety Research (NKS) collaboration
Background NKS is a Nordic collaboration promoting cooperation on nuclear safety and emergency preparedness research. The research program is primarily funded by Nordic radiation safety authorities and responsible ministries. The main purpose of NKS is to finance joint Nordic activities and initiatives, including seminars and workshops, technical reports, exercises and scientific articles.
Innehållstyp: Publikationer -
2017:05 Robust structural verification of pressurized nuclear components subjected to ratcheting, part two – stress-strain curves for cyclic elastoplastic analysis.
Background Pressurized components in nuclear applications that are subjected to cyclic loading may exhibit progressive deformation, so called structural ratcheting. If the component is made out of a material that are deformation hardening, it may also exhibit material ratcheting. The combined effects of structural- and material ratcheting are not taken into account in the methods and material...
Innehållstyp: Publikationer -
2017:22 Effect of weld repairs on residual stresses in nickel base dissimilar metal welds
Background The driving force for crack growth near welds in nuclear application piping may arise from weld residual stresses. Experience from nondestructive examination show that cracks in dissimilar metal welds are often found near weld repairs. The repair welding may affect the residual stresses through e.g. increased tensile stresses and increased plastic straining on the surfaces of the...
Innehållstyp: Publikationer -
2017:12 Computational assessment of LOCA simulation tests on high burnup fuel rods in Halden and Studsvik
Background Loss of Coolant Accidents (LOCA) are among the most demanding accidents that can happen in a Light Water Reactor (LWR). The lack of cooling and the drop in pressure impose large stresses on the nuclear fuel which would increase the risk of fuel rod damage and the subsequent release of active material. But LOCA is also an accident that the nuclear power plant is designed to...
Innehållstyp: Publikationer -
2017:32 COMRAD – Comprehensive investigation of the performance of computed and digital radiography
Background Within the industry, there has long been a need to replace the traditional X-ray film and its handling. These both for economic and environmental considerations. Both computed radiography and digital radiography offer many advantages over the traditional use of x-ray with film. However, the transition from film-based radiography requires in-depth knowledge of the relationship...
Innehållstyp: Publikationer -
2023:04 Kingdom of Sweden ARTEMIS Self-assessment Report 2023
Foreword In January 2018, the Swedish Radiation Safety Authority, SSM, submitted a request to the IAEA on behalf of the Swedish Government for international peer reviews to be conducted of the Swedish national frameworks for nuclear safety regulation (IRRS) and the safe management of spent fuel and radioactive waste (ARTEMIS). In dialogue with the IAEA, and in support of the then Swedish...
Innehållstyp: Publikationer -
2024:02 Earthquake stationarity and distributed fault displacements, Forsmark repository site
SSM perspektiv Bakgrund och syfte Stora jordbävningar inträffar huvudsakligen längs plattgränser. På grund av detta har mycket av forskningen riktats mot denna tektoniska miljö. Den allmänna bristen på seismicitet i stabila kontinentala områden, såsom Baltiska Skölden, har försvårat uppskattningar, såväl som förståelsen,...
Innehållstyp: Publikationer