Visar 1064 publikationer

• 2017:22 Effect of weld repairs on residual stresses in nickel base dissimilar metal welds

  Background The driving force for crack growth near welds in nuclear application piping may arise from weld residual stresses. Experience from nondestructive examination show that cracks in dissimilar metal welds are often found near weld repairs. The repair welding may affect the residual

  Innehållstyp: Publikationer

• 2017:21 Neutronfluensberäkningar för surveillance provning

  Sammanfattning Bestrålning av reaktortankens material med snabba neutroner leder till förändringar i materialets egenskaper så att det försprödas. De förändrade materialegenskaperna utgör en av de viktigaste orsakerna till att reaktortankens livslängd

  Innehållstyp: Publikationer

• 2017:20 Assessment of inertia effects on transient clad-to-coolant heat transfer and coolant flow under reactivity initiated accidents

  In this report, simple hydrodynamic models are used for studying the effects of coolant inertia on fuel-to-coolant heat transfer and coolant flow under reactivity initiated accidents in light water reactors. The objective is to assess if the inertia effects are important enough to warrant

  Innehållstyp: Publikationer

• 2017:19 Numerical simulations of headed anchors break in reinforced and non-reinforced concrete structures, Phase 2

  Background In the design of anchorage equipment in concrete structures the beneficial effects of reinforcement are, in most cases, not considered. The American ASCI 349-06 code opens up for a more detailed analysis where the beneficial impact of reinforcement on anchor capacity can be taken

  Innehållstyp: Publikationer

• 2017:18 FEM analysis of the mechanical integrity for the canister intended for storage of spent nuclear fuel with regard to copper creep ductility

  Background For final storage of spent nuclear fuel it is suggested by the Swedish nuclear fuel and waste management company (SKB) to emplace the nuclear fuel into copper canisters which are surrounded by bentonite clay at approximately 500 meters’ depth into granitic rock. After emplacement of

  Innehållstyp: Publikationer

• 2017:17 Granskning och utvärdering av SKB:s redovisning av Fud-program 2016

  Strålsäkerhetsmyndighetens yttrande Svensk Kärnbränslehantering AB (SKB) har lämnat in Fud-program 2016 till Strålsäkerhetsmyndigheten (SSM) för granskning och utvärdering enligt 12 § lagen 1984:3) om kärnteknisk verksamhet kärntekniklagen).

  Innehållstyp: Publikationer

• 2017:15 Radionuclide release rates associated with bounding cases featuring relatively early canister failures in a spent fuel repository

  Background In 2011 the Swedish Nuclear Fuel and Waste Management Co (SKB) submitted a license application for construction of a geological repository for spent nuclear fuel according to the KBS-3 method, comprising of copper canisters, bentonite buffer, backfill and surrounding crystalline

  Innehållstyp: Publikationer

• 2017:16 Stress intensity factor solutions for circumferential cracks in cylindrical bars under axisymmetric loading and global bending

  Background The case of a circumferential crack in a cylindrical bar has not been available in the ProSACC code. The need for such a geometry, especially considering nonlinear axisymmetric loading and global bending, has motivated the development of new stress intensity factor solutions, also

  Innehållstyp: Publikationer

• 2017:14 Kriterier för klinisk revision av strålbehandling

  Bakgrund I rådets direktiv 2013/59/Euratom definieras klinisk revision som systematisk utvärdering av medicinska radiologiska förfaranden i syfte att förbättra kvaliteten och resultaten i patientvården genom strukturerad översyn, varigenom medicinska radiologiska

  Innehållstyp: Publikationer

• 2017:13 Monte Carlo patient-specific pre-treatment QA system for volumetric modulated arc therapy

  Background The clinical use of volumetric modulated arc therapy (VMAT) has augmented rapidly since it became commercially available. As a result, the need for comprehensive quality assurance (QA) has increased. Current practices in Sweden normally compare the delivered dose with the planned

  Innehållstyp: Publikationer