Din avgränsning ger 419 träffar.
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2007:39 Influence of Crack Morphology on Leak Before Break Margins
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 plant. It ... large influence on the leakage flow rate and hence on the LBB- margins. SKI has therefore initiated a project to investigate the influence of the crack morphology on LBB-margins applied on pipe systems in...
Innehållstyp: Publikationer -
2021:06 Quality Assurance Review of the Swedish Nuclear Fuel and Waste Management Company’s LOT Experiment (Phase S2 and A3) at the Äspö Facility in Sweden
SSM perspective Background This report presents a quality assurance (QA) review of the work done by SKB to retrieve the S2 and A3 parcels from the Long term test of buffer material (the LOT experiment) ... tubes from the parcels. The QA review has focused on SKB’s copper corrosion analysis. SKB’s management of the LOT S2 and A3 project and the reports on dismantling the test parcels (TR 20 11) and analysing...
Innehållstyp: Publikationer -
2021:21 Region-specific radioecological evaluation of accidental releases of radionuclides from ESS
SSM perspective Background To strengthen the material science research in Europe, the European Spallation Source (ESS) is being built in Lund in the southern part of Sweden. In the spallation process, ... eco-systems and possibly introducing expo-sure pathways to humans from several food chains. The knowledge on how to estimate the nuclide concentrations in environmental samples is a significant part of the dose...
Innehållstyp: Publikationer -
2012:70 Process Parameters Affecting Inhomogeneity of Material Microstructure
There’s been a tremendous change in the number, product types, locations, equipment, and manufacturing capabilities of stainless steel producers from the late 1960’s to present. This reconfiguration of ... of the global steel industry occurred between the early 1970’s to the mid 1980’s and continues today. These changes have produced a loss in manufacturing flexibility, due to the inherent constraints created...
Innehållstyp: Publikationer -
2018:08 Calculated radiological consequences of applying European clearance levels to scrap metal from the decommissioning of Swedish nuclear facilities
from a radiation protection point of view. According to regulations issued by the SSM, such decisions must be based on thorough measurements of the activity content and it must be shown that the activity ... Studsvik. In accordance with international recommendations and requirements, the SSM regulations on clearance of materials are based on the criterion that no member of the public should receive a yearly radiation...
Innehållstyp: Publikationer -
2021:03 Updated radiological risk assessment for the “Radon” type surface disposal facility in Chisinau, Moldova
SSM perspective Background Bilateral cooperation between Sweden and the Republic of Moldova in nuclear and radiological safety and security has been ongoing since 2010, focusing on activities aimed at ... management, handling and treatment at the Radioactive Waste Management Company`s Special Facilities 5101 and 5102. In 2019, SSM funded development of a geoscientific and radiological measurement program at...
Innehållstyp: Publikationer -
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 ... 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 Facility...
Innehållstyp: Publikationer -
2007:21 On tentative decommissioning cost analysis with specific authentic cost calculations with the application of the Omega code on a case linked to the Intermediate storage facility for spent fuel in Sweden
The aim of this applied study has been to demonstrate how a cost calculation is done in a systematic way. The framework of the project has been limited to older nuclear installations in Sweden. Furthermore, it may be envisaged that the process of making regular estimates of all the parameters is crucial in preparatory phases of decommissioning and dismantling processes. A secondary aim of the...
Innehållstyp: Publikationer -
2011:30 A fatigue analysis including environmental effects for a pipe system in a Swedish BWR
The effect of the environment on fatigue design has been the subject of intense study in USA, Japan and elsewhere. Several reports indicate a potentially large influence of the environment, leading to ... proposal of entirely new analysis procedures. SSM has in an earlier project sponsored research to evaluate the technical basis for these proposals, see SSM Research Report 2011:04. In the current report...
Innehållstyp: Publikationer -
2005:61 Review and Assessment of SCC Experiments with RPV Steels in Oskarshamn 2 and 3 (ABB Report SBR 99-020)
Although there is no direct evidence from the field of stress corrosion cracking risks in reactor pressure vessels, the effect of chloride excursions on stress corrosion cracking crack growth in reactor ... Although there is no direct evidence from the field of stress corrosion cracking risks in reactor pressure vessels, the effect of chloride excursions on stress corrosion cracking crack growth in reactor...
Innehållstyp: Publikationer