Din avgränsning ger 83 träffar.
-
2023:11 Study of degradation of spent fuel’s structural material and core components under long-term wet storage
SSM perspective Background Sweden is managing the spent nuclear fuel and core components from its commercial nuclear reactors with a national strategic plan. The fuel and core components are initially stored at the reactor site. After an on-site storage period to comply with transportation limits on decay heat and radiation, these materials are shipped to the Clab (Central Interim Storage...
Innehållstyp: Publikationer -
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 -
Säker strålmiljö i Sverige – men hudcancerfallen fortsätter att öka
Den årliga uppföljningen av Sveriges miljökvalitetsmål visar att målet ”Säker strålmiljö”, som Strålsäkerhetsmyndigheten ansvarar för, är nära att uppnås. Målen inom tre av fyra områden nåddes under 2020. Det fjärde området, ultraviolett (UV) strålning, har fortfarande inte uppnåtts, eftersom...
Innehållstyp: Nyheter -
Strålskyddsexpertfunktion
Tillståndspliktiga verksamheter med joniserande strålning ska ha tillgång till en strålskyddsexpertfunktion enligt 3 kap. 13 § i Strålsäkerhetsmyndighetens föreskrifter (SSMFS 2018:1) om grundläggande bestämmelser för tillståndspliktig verksamhet med joniserande strålning.
Innehållstyp: Artiklar -
Att arbeta strålsäkert
Den som har tillstånd att driva verksamhet med joniserande strålning är också den som har ansvaret för personalens strålskydd. Informationen på den här sidan är främst riktad till dig som är tillståndshavare. Du måste följa Strålsäkerhetsmyndighetens föreskrifter och se till att personalen...
Innehållstyp: Artiklar -
2015:25 Design Guide for Nuclear Civil Structures (DNB)
The Swedish Radiation Safety Authority (SSM) and the Swedish licensees have previously in a jointly funded research project developed a design guide for civil structures at Swedish nuclear facilities to be based on Eurocodes, DNB. The report was published in January 2014 as SSM Report 2014:06. To further improve DNB and to ensure that the fundamentals of the recommendations will be applied...
Innehållstyp: Publikationer -
2015:46 Assessment of data and criteria for cladding burst in loss-of-coolant accidents
Ali R. Massih, Lars Olof Jernkvist SSM English...
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 -
2011:16 Modelling of ultrasonic testing of cracks in cladding
During the last two decades, SSM has supported research to develop a model for the non-destructive test situation based on ultrasonic technique. Such a model is important in many ways, for example to supplement and plan experimental studies and to perform parametric studies in qualification situation. Modeling can be a useful tool when the inspection system shall be technically justified.
Innehållstyp: Publikationer -
2011:13 Investigation of Discrete-Fracture Network Conceptual Model Uncertainty at Forsmark
Flow modelling using alternative assumptions regarding conceptual and parametric uncertainty in the spatial and structural relationships among fractures indicates elevated flow rates and groundwater velocities to deposition holes compared to SKB’s flow modelling results. Simulated sampling of fractures in boreholes does not indicate any reason to exclude the proposed spatial and structural...
Innehållstyp: Publikationer