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2015:11 Investigation of the Distribution of Phosphorus in Copper
Two copper alloys containing different amounts of phosphorus, 6 and 80 wtppm, respectively, have been investigated. The matrix of both alloys was analysed using atom probe tomography (APT). The matrix ... matrix P concentration in the 80 wtppm P mate- rial was about the same as the bulk concentration and it was therefore concluded that the majority of the P atoms resides in the matrix. Grain boundaries in the...
Content type: Publications -
2015:10 SafePhase: Safety culture challenges in design, construction, installation and commissioning phases of large nuclear power projects
organization challenges to regulators and licensees. Organizational processes and practices that have evolved in one phase of development might be dysfunctional for the next phase, and the definition of “good safety ... safety culture challenges facing regulators and power companies in different phases of large-scale nuclear power projects. The study utilized relevant literature and international experience on challenges in...
Content type: Publications -
2015:09 PROSIR - Probabilistic Structural Integrity of a PWR Reactor Pressure Vessel
participants from 9 countries (USA, Japan, Korea (6 participants), Sweden, Germany, Czech Republic, Spain, EC and France (3 participants)) have been involved in a round robin study called PROSIR, Probabilistic Structural ... Structural Integrity of a PWR Reactor Pressure Vessel. The PROSIR project started already in 2003 and a final draft version of the main report of the project was is- sued in 2011. Objectives The primary...
Content type: Publications -
2015:08 Technical Note, Rheological properties of the Bentonite Buffer
properties of bentonite at high densities are extremely important and it appears as it has been to a certain extent well researched and understood, although further investigations regarding swelling of ... of the buffer behaviour. Such a model should be developed and then it is necessary to benchmark the model against a number of well-defined and suitable element tests in order to evaluate the merits of...
Content type: Publications -
2015:06 Technical Note, Feasibility of Backfilling Deposition Tunnels
scientific and technical programme of research and development work to investigate the many processes that may affect the choice of backfill materials, the practicali- ties of backfill emplacement, and the properties ... basis of this re- search and development work SKB has outlined a process for backfilling the repository deposition tunnels. SKB’s research and development programme has identified and addres- sed, but not...
Content type: Publications -
2015:22 Technical Note, Further modelling and sensitivity study using the GEMA-Site “alternative biosphere models” and review of material from SKB’s RFI response
Denna rapport har upprättats som en del av SSM:s huvudgranskning av SKB:s säkerhetsanalys av den långsiktiga säkerheten för KBS-3 (SR-Site), en geologisk slutförvarsanläggning, som SKB planerar uppföra i Forsmark. Granskningen tar upp de metoder som används för dosberäkningar i SR-Site, speciellt vad gäller transporter, ackumulering och...
Content type: Publications -
2015:19 Recent Research on EMF and Health Risk - Tenth report from SSM’s Scientific Council on Electromagnetic Fields, 2015
cover the previous year’s research in the area of electromagnetic fields (EMF). The report gives the Authority an overview and provides an important basis for risk assessment. The Swedish Radiation Safety ... scientific council monitors the current research situation and provides the Authority with advice on the assessment of risks, authorization and optimization within the area. The council gives guidance when...
Content type: Publications -
2015:05 Technical Note, Review of uncertainty propagation and sensitivity analysis in SR-Site Main Review Phase
uncertainty and sensi- tivity analysis in SR-Site” addressed three issues: 1. Adequacy of the methods adopted by SKB for conducting sensitivity analyses 2. Approach for use of conservative and best-estimate ... which is adequately justified by SKB. The choice of SA methods seems appropriate and the results obtained reasonable and furthermore supported by physico-chemical reasoning. The reviewer wonders whether...
Content type: Publications -
2015:04 DiD-PSA: Development of a Framework for Evaluation of the Defence-in-Depth with PSA
level of defence and combinations of levels, methods to give estimates from a PSA perspective are presented and discussed. One important result is the discussion of the basic definitions and the basis for ... modified and further developed definitions that support the link to a developed PSA. This report clarifies the links between the defence in depth, as defined by IAEA and SSM code of statutes, and link to...
Content type: Publications -
2015:01 Technical Note, Rock Mechanics - Thermal properties and thermal modelling of the rock in a repository of spent nuclear fuel at Forsmark – Main Review Phase
nuclear fuel, SSM has conducted a series of modelling studies related to the design, construction and long-term safety of a repository at Forsmark. Several of the presented modelling works are related ... evolution of the repository with time. This report extracts the results from independent SSM reports and compares the results with the thermal modelling performed by SKB. In the course of the thermal evolution...
Content type: Publications