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  • 2007:05 Development of an Input Model to MELCOR 1.8.5 for Oskarshamn 3 BWR

    200 Lars Nilsson SKI English...

    Content type: Publications
  • 1996:70 Risks from Nuclear Waste

    The first part of this review discusses the importance of risk. Man seems to have a longing for risks, like a part of the human nature. If risks are missing, they have to be invented, as needed parts in the emotional attraction of sports, amusement parks, traveling, etc.; this is the emotional part of risk. There is also a rational part of risk , in selecting such objects in ordinary life big...

    Content type: Publications
  • 1994:14 Evaluation of acceptance criteriafor data on environmentally assistedcracking in light water reactors

    The assessment of possible sub-critical crack growth through environmentally assisted cracking (EAC) is a commonly encountered problem in safety evaluations of light water reactor components. The numerous factors influencing EAC fall into three main groups (material, medium and loading), but their interactions are highly complex. Field assessments usually rely on the evaluation of...

    Content type: Publications
  • 1995:70 Crack Characterisation for In-service

    During in-service inspection by non destructive testing the reliability is highly dependent on how the equipment is adjusted to the specific object and to the anticipated crack features. The crack feature and morphology vary widely between different cracking mechanisms and between material types, in which the cracks appear. The major objective of this study was to characterise a number of...

    Content type: Publications
  • 96:51 The Flooding Incident at the Ågesta Pressurized Heavy Water Nuclear Power Plant

    This report is a Master's thesis in Nuclear Reactor Engineering to be submitted to the SKi (Swedish Nuclear Power Inspectorate). The work has been performed at the Division of Nuclear Power Safety, KTH,Stockholm. It is an independent investigation of the consequences of the flooding incident at the Agesta HPWR, in Stockholm, Sweden, which occurred on the 1st of May 1969. The issue was raised...

    Content type: Publications
  • 1994:15 Aging Degradation of Concrete Structures in Nuclear Power Plants

    This report on the aging-related degradation of concrete structures in nuclear power plants was prepared by Battelle Seattle Research Center for the Swedish Nuclear Power Inspectorate (SKI). The purpose of this report is to provide an understanding of how concrete structures in nuclear power plants degrade over time. This report is based on the studies of concrete aging commissioned by the...

    Content type: Publications
  • 2024:01 Stress field modelling of the Forsmark lens – Correlation of stress measurements with stress field simulations

    SSM perspective Background and objective Understanding the in-situ stress field in the Forsmark tectonic lens will lay the fundamental basis to characterise the prevailing mechanical and hydraulic behaviour of the rock mass. Only with a good understanding of the geomechanical setting including the stress field an analysis of future rock mass behaviour under the evolution of conditions in a...

    Content type: Publications
  • 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...

    Content type: Publications
  • Fitness for work certificate – Work involving ionising radiation

    You need Adobe Acrobat Reader in order to read and fill out PDF forms. SSM Svenska You need Adobe Acrobat Reader in order to read and fill out PDF forms.

    Content type: Publications
  • 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...

    Content type: Publications