Din avgränsning ger 996 träffar.
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2015:37 Models for axial relocation of fragmented and pulverized fuel pellets in distending fuel rods and its effects on fuel rod heat load
Modellen införs i SSM:s version av FRAPTRAN-1.5, ett beräkningsprogram avsett för termomekanisk analys av bränslestavar under transienter och olyckor. Lars Olof Jernkvist, Ali R. Massih SSM English Haverifall ... under LOCA och dess effekter på bränslestavens värmebelastning och skadeprocesser. Modellen införs i SSM:s version av FRAPTRAN-1.5, ett beräkningsprogram avsett för termomekanisk analys av bränslestavar under...
Innehållstyp: Publikationer -
2014:37 Rapport från SSM:s vetenskapliga råd om ultraviolett strålning 2013
I denna rapport för år 2013 redovisas aktuella tidstrender för malignt melanom och övrig hudcancer, att överlevnad vid melanomsjukdom påverkas av utbildningsnivå ... mot grupper som, om de drabbas av melanomsjukdom, har en sämre prognos. SSM:s vetenskapliga råd om ultraviolett strålning SSM Svenska I denna rapport för år 2013 redovisas aktuella tidstrender för malignt...
Innehållstyp: Publikationer -
2020:09 Rapport från SSM:s vetenskapliga råd om ultraviolett strålning 2019
SSM perspektiv Bakgrund Strålsäkerhetsmyndighetens (SSM) vetenskapliga råd om ultraviolett (UV) strålning ger myndigheten råd inom områden som rör olika aspekter i samband med ultraviolett strålning. I ... utvecklingen inom UV-området och hudcancerprevention och sammanställer kunskapsläget i en årlig rapport till SSM. Resultat I denna rapport för år 2019 redovisas: hur utvecklingen av teledermatoskopi kan förbättra...
Innehållstyp: Publikationer -
2011:19 Experimental evaluation of influence from residual stresses on crack initiation and ductile crack growth at high primary loads
weld-induced residual stresses in some materials, for instance stainless steel welds. The R6-method on the other hand tends to give overly conservative assessment results. The significance of the secondary ... materials within nuclear applications has been studied earlier using an analytical approach by a SSM-financed study (SSM Research Report 2009:27). In that study a deterministic safety evaluation procedure was proposed...
Innehållstyp: Publikationer -
2016:02 Technical Note, An updated review of the creep ductility of copper including the effect of phosphorus
Background The Swedish Radiation Safety Authority (SSM) reviews the Swedish Nuclear Fuel Company’s (SKB) applications under the Act on Nuclear Activities (SFS 1984:3) for the construction and operation ... As part of the review, SSM commissions consultants to carry out work in order to obtain information on specific issues. The results from the consultants’ tasks are reported in SSM’s Technical Note series...
Innehållstyp: Publikationer -
2017:12 Computational assessment of LOCA simulation tests on high burnup fuel rods in Halden and Studsvik
in a Light Water Reactor (LWR). The lack of cooling and the drop in pressure impose large stresses on the nuclear fuel which would increase the risk of fuel rod damage and the subsequent release of active ... 5 (see SSM report 2015:37). Objective This report describes the validation of the models against tests performed in Halden and in Studsvik, the latter commissioned by NRC. The objective for SSM in this...
Innehållstyp: Publikationer -
2012:17 Technical Note, Corrosion of copper canister
corrosion is treated in SKB´s safety assessment as being only dependent on oxygen gas and thus easily estimated by an oxygen mass-balance calculation. This simple model has no scientific support since several ... accelerating effect on copper corrosion. Any corrosion model describing the gaseous copper corrosion period must therefore be based on experimental data. Peter Szakálos and Seshadri Seetharaman SSM English It is...
Innehållstyp: Publikationer -
2014:58 Technical Note, Rock Mechanics - Assessing probability and extent of blind faults and fault-end growth around the KBS-3 repository at Forsmark – Main Review Phase
changes in stress, and in particular increase of differential stress on deformation zones, might cause slip. Therefore, several stress field models have been considered in this study. In general, steeply dipping ... simulation results. In addition, this analysis clearly shows that a good understanding of the stress field is essential for any mechanical analysis of geological system behaviour. Simulation of the influence...
Innehållstyp: Publikationer -
2012:37 Technical Note, Selective review of the hydrogeological aspects of SR-Site
This review of the hydrogeology is selective. It focuses on the measurement, interpretation and modelling of the potential repository host rock, that is the rock domain FFM01<-400m. It accepts as reasonably ... particularly the near-surface 150m in the form presented by SKB. SKB have decided that their main field measurement method is the Posiva flow log. The review notes the speed and efficacy of the method in...
Innehållstyp: Publikationer -
2019:15 3D Thermo-Mechanical Coupled Modelling of Thermo-Seismic Response of a Fractured Rock Mass related to the Final Disposal of Spent Nuclear Fuel and Nuclear Waste in Hard Rock
SSM perspective Background When assessing the long-term safety of a repository for spent nuclear fuel it is important to consider future earthquakes. Previous studies by Yoon et al. (2014, SSM Report 2014:59) ... 2014:59) and (2016, SSM Report 2016:23) investigated the fracture responses due to heat and earthquakes at major deformation zones using a 2D thermo-mechanical coupled model that uses a Particle Flow Code...
Innehållstyp: Publikationer