Visar 4435 sökträffar på ””
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2011:06 Reliability Data Handbook for Piping Components in Nordic Nuclear Power Plants – R Book, Phase 2
The Nordic PSA Group (NPSAG) has undertaken to develop a piping reliability parameter handbook for use in risk-informed applications that involve the consideration of structural integrity of piping systems. The scope of the handbook is to establish high quality reliability parameters that account for the Nordic and worldwide service experience with safety-related and non-safety-related piping...
Innehållstyp: Publikationer -
2010:47 Utveckling av programpaket för analys av termisk utmattning
I ett tidigare NESC-projekt (Network for Evaluating Structural Components – Thermal Fatigue) togs fram en Europeisk procedur för hantering av termisk utmattning. Den tidigare myndigheten Statens kärnkraftinspektion (SKI) var en av projektets finansiärer. Proceduren innehåller bl.a. utvärdering av en modell för analys av högcykelutmattning vid turbulent termisk...
Innehållstyp: Publikationer -
2011:05 Overview and Evaluation of the NESC Projects for Fracture Assessments of Nuclear Components
The Network for Evaluation of Structural Components (NESC) was started in 1993 and since then six different projects have been carried out. A seventh NESC-project is still in progress. The overall objective of these projects has been to study the reliability of the entire process of structural integrity assessment within an international framework. The network is coordinated by the European...
Innehållstyp: Publikationer -
2013:01 Validation of Weld Residual Stress Modeling in the NRC International Round Robin Study
Weld residual stresses (WRS) have a large influence on the behavior of cracks growing under normal operation loads and on the leakage flow from a through-wall crack. Accurate prediction on weld residual stresses is important to make proper decisions when cracks in weld joints are detected. During the latest years, there has been a strong development in both analytical procedures to...
Innehållstyp: Publikationer -
2012:66 Safety Leadership – the managerial art of balancing production pressure and safety
A substantial part of the project has been dedicated to investigating and characterizing ‘safety leadership’, set in the context of literature on safety leadership, safety culture and safety management, in order to build a solid theoretical basis. The authors have delved deeply into the theories and conceptualizations of leadership and analysed this area in order to further the understanding...
Innehållstyp: Publikationer -
2008:33 Risk-informed assessment of defence in depth, LOCA example
The methods that are used today in PSA are applicable for evaluating defence-in-depth levels 1 and 2. Failure data can be determined through: human reliability analysis, riskinformed in-service-inspection methodology, system reliability analysis and directly from plant specific failure data for the components. Many DID activities against LOCA are not explicitly modelled in typical...
Innehållstyp: Publikationer -
2002:16 Epidemiologic Studies of Cellular Telephones and Cancer Risk – A Review
Cellular telephones emit and receive radiofrequency (RF) signals between about 450 and 2200 MHz which fall in the microwave region of the electromagnetic spectrum. A RF wave from a cellular telephone contains billions of times less energy than an x-ray and is not capable of inducing ionizations or damaging DNA. The rapid and widespread use of this technology, however, has raised concern over...
Innehållstyp: Publikationer -
2002:08 Mammography – recent technical developments and their clinical potential
Purpose The recent technical developments in digital as well as screenfilm X-ray mammography have been reviewed in order to evaluate their clinical potential and to analyse possible lines for future development. Material and methods The scientific literature has been reviewed, conferences covered and contacts with colleagues developed. Companies in the field have been inquired and invited for...
Innehållstyp: Publikationer -
2006:08 Veterinärinspektioner 2005
Det finns i Sverige ca 300 tillståndshavare med tillstånd för veterinärmedicinsk röntgendiagnostik, sex av dessa har även tillstånd för nukleärmedicinsk verksamhet. Extern strålbehandling med röntgenstrålning för djur introducerades i landet under början av 2006. Storleken på klinikerna varierar från den lilla kliniken...
Innehållstyp: Publikationer -
2007:04 Recent Research on EMF and Health Risks. Fourth annual report from SSI’s Independent Expert Group on Electromagnetic Fields, 2006
This year’s report includes a preamble in which the work process of the group is described. In particular the methods for evaluation of the results of studies as well as for synthesizing the scientific evidence within a research area are described. A recent childhood leukaemia study from Japan is in line with previous epidemiologic findings. The effects of RF fields on many different...
Innehållstyp: Publikationer