Din avgränsning ger 597 träffar.
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2011:11 Handling Interfaces and Time-varying Properties in Radionuclide Transport Models
Quintessa’s QPAC code has been used to investigate the Qeq approach. The conclusions from this simulation study are the following. The basic approach to calculating Qeq values is sound, however, narrow ... the potential to increase the release significantly. Quintessa’s AMBER software has been used to explore the effects of glacial episodes on radionuclide transport with time-varying properties. The simulation...
Innehållstyp: Publikationer -
2013:07 Corrosion of copper in distilled water without molecular oxygen and the detection of produced hydrogen
this was not possible in the experimental set-up used. Thus it cannot be excluded that formed species on surfaces could have been altered during handling of specimens between exposure and surface analysis ... indicate that the reaction products are predominately comprised of oxide and hydroxide. Furthermore, based on the visual appearance, the reaction products formed are solid and of a three dimensional character...
Innehållstyp: Publikationer -
2012:18 Technical Note, SR-Site Independent Modelling of Engineered Barrier Evolution and Coupled THMC: Contribution to the Initial Review Phase
This review has focussed mainly on the modelling of the Engineered Barrier System (EBS) evolution, which includes coupled thermal, hydraulic, mechanical and chemical (THMC) processes. Additionally, the ... here was to: Review relevant documents concerning SKB’s modelling; and Check one particular modelling area that was judged to be important, based on this review, with a limited set of independent modelling/calculations...
Innehållstyp: Publikationer -
2012:62 Technical Note, Review of the MARFA Code
As part of SSM’s Initial Review Phase of SKB’s SR-Site safety assessment of the final disposal of spent nuclear fuel at the Forsmark site, Quintessa has been requested by SSM to review SKB’s MARFA code ... and adequate to support its use in SR-Site. This Technical Note summarises the findings of Quintessa’s review. The main concern raised in the review is the poor quality of the documentation associated with...
Innehållstyp: Publikationer -
2022:11 Kingdom of Sweden IRRS ARM Summary Report 2022
November 2022 Foreword In January 2018, the Swedish Radiation Safety Authority, SSM, submitted a request to the IAEA on behalf of the Swedish Govemment for international peer reviews to be conducted of ... with a follow-up mission in 2016. A preparatory meeting was held with IRRS mission representatives on 26-27 April 2022. Organisational elements of the IRRS mission were discussed and some of the detailed...
Innehållstyp: Publikationer -
2014:34 Technical Note, Modelling Comparison of Simple Reference Biosphere Models with LDF Models – Main Review Phase
models are developed and described in a systematic manner, based on international guidance reflected in the International Atomic Energy Agency’s BIOMASS approach. The context for the modelling is described ... driven by land rise resulting from isostatic post-glacial rebound, is not represented. Russell Walke SSM English This Technical Note describes the development of simple reference biosphere models as a means...
Innehållstyp: Publikationer -
2020:11 Competency based assessments of Nuclear Power Plant controlroom operators
Experiences of development and first operational methodological and technical demonstrator application SSM perspective Background The ability of the control room operators is paramount to secure safe and stable ... same amount of operating incidents, as operators did twenty years ago. The last ten years concerns on operators’ future ability to meet challenges have been raised, e.g., the operators’ integrated system...
Innehållstyp: Publikationer -
2012:47 C-14 Long-Term Dose Assessment: Data Review, Scenario Development, and Model Comparison
well as for the wider interpretation of information used in assessments. Particular emphasis is placed on data required for the assessment of long-lived radionuclide migration and accumulation in the biosphere ... of Japan (NUMO, Japan), Svensk Kärnbränslehantering AB (SKB, Sweden) and Strålsäkerhetsmyndigheten (SSM, Sweden). This report provides a summary of a programme of work, commissioned within the BIOPROTA collaborative...
Innehållstyp: Publikationer -
2013:09 An Application of the Functional Resonance Analysis Method (FRAM) to Risk Assessment of Organisational Change
organisational changes, based on the principles of resilience engineering. The approach in question was the Functional Resonance Analysis Method (FRAM). Whereas established approaches focus on risks coming from failure ... failure or malfunctioning of components, alone or in combination, resilience engineering focuses on the common functions and processes that provide the basis for both successes and failures. Resilience...
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 ... are often equipped with a cladding material to prevent material degradation by the influence of media on the surface. This cladding material, often anisotropic, makes the ultrasonic examination more difficult...
Innehållstyp: Publikationer