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2016:26 Ensemble for deterministic sampling with positive weights
The aim of this project is to find a reliable method for determining an ensemble for Deterministic Sampling with only positive weights. This report is intended to work as a presentation of the project, as well as to work as a beginner’s guide to DS. In the report several methods for generating DS ensembles are presented, which can encode up to four moments and represent any kind of...
Innehållstyp: Publikationer -
2004:16e Statement of the Situation Concerning Safety and Radiation Protection at Swedish Nuclear Plants in 2003
The safety philosophy upon which the Swedish Nuclear Power Inspectorate’s (SKI) supervisory and regulatory activities are based assumes that multiple physical barriers will exist and that a plant-specific defence-in-depth system will be implemented at each plant. The physical barriers are situated between the radioactive material and the plant personnel and surroundings. In the case of...
Innehållstyp: Publikationer -
2002:14 Säkerhets- och strålskyddsläget vid de svenska kärnkraftverken 2001
Under året har det inte förekommit några allvarliga driftstörningar vid de svenska kärnkraftverken som inneburit att säkerheten varit hotad. Inga händelser har inträffat som medfört onormala stråldoser eller doser över dosgränserna vare sig till personal eller allmänhet. Statens kärnkraftinspektion, SKI, har ändå haft...
Innehållstyp: Publikationer -
2007:06 Probabilistic Safety Goals - Phase 1 -Status and Experiences in Sweden and Finland
Based on a series of interviews and on literature reviews as well as on a limited interna- tional over-view, the project has described the history and current status of safety goals in Sweden and Finland. A number of issues were discussed more in detail, including the status of the safety goals in view of the fact that they are often exceeded, strategies for handling violations of safety...
Innehållstyp: Publikationer -
2007:39 Influence of Crack Morphology on Leak Before Break Margins
The SKI regulation SKIFS 2004:2 allows for the use of Leak Before Break (LBB) as one way to provide assurance that adequate protection exists against the local dynamic consequences of a pipe break. The way to demonstrate that LBB prevails relies on a deterministic procedure for which a leakage crack is postulated in certain sections of the pipe based on the leak detection capability of the...
Innehållstyp: Publikationer -
2003:20 Metoder för översyn av larmkriterier
Nuvarande larmnivåer för kärnkraftverken och därtill knutna larmkriterier etablerades vid den senaste översynen för ca 10 år sedan. Utlösning av larmnivå baseras till stor del på kriterier som bygger på konstaterade haverier och på radiologiska mätdata. SKI har här sett ett behov av undersöka möjligheterna att stärka...
Innehållstyp: Publikationer -
2007:14 Review of experimental data for modelling LWR fuel cladding behaviour under loss of coolant accident conditions
This project has contributed to the research goal of giving a basis for SKIs supervision by means of evaluating experimental data and modelling the nuclear fuel cladding during a design base accident. The project has also contributed to the research goal to develop the competence about licensing of fuel at high burnup, which is an important safety issue. The results are useful as such, but...
Innehållstyp: Publikationer -
2005:53 Ekonomistyrning och säkerhet
En utredning om hur ekonomi- och säkerhetsaspekter integreras vid beslutsfattandet vid kärnkraftverken...
Innehållstyp: Publikationer -
2004:27 Utveckling av verktyg för optimering av HWC
Gunnar Wikmark, Klas Lundgren, Hjalmar Wijkström, Katarina Pein, Mats Ullberg SKI Svenska...
Innehållstyp: Publikationer -
2004:50 Microstructure in Zircaloy Creep Tested in the R2 Reactor
Kjell Pettersson SKI English...
Innehållstyp: Publikationer