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Din avgränsning ger 11 träffar.

• 2020:13 Core data Research at Uppsala University

  SSM perspective Background This project is to support a research group at Uppsala University in the research field of nuclear data for applications. Nuclear data research is about measuring microscopic ... different nuclear reactions and developed theoretical nuclear data models. The experiments were focused on fission reactions. The experiments were performed in different facilities in Europe such as the IGISOL-facility...

  Innehållstyp: Publikationer

• 2020:12 Assessment of the QT-COOL coolant channel module against the PBF RIA 1-2 experiment

  SSM perspective Background The fuel rod analysis program SCANAIR has been developed by IRSN (Institut de Radioprotection et de Sûreté Nucléaire) for analysis of reactivity initiated accidents (RIA) in ... Swedish Radiation Safety Authority (SSM) has access to SCANAIR in exchange for annual contributions for its further development. This ensures a possibility for SSM to do own analysis of fuel rods in reactivity...

  Innehållstyp: Publikationer

• 2020:07 Fibre Clogging in Nuclear Power Plants

  SSM perspective Background Emergency core cooling systems in boiling- and pressurized water reactors use strainers. Their purpose is to out foreign material suspended in the cooling water so this material ... increased the surface size of the strainers, to avoid them from being clogged. The risk of accumulation on the strainers is increased pressure drop over strainers, potentially causing cavitation in the emergency...

  Innehållstyp: Publikationer

• 2020:11 Competency based assessments of Nuclear Power Plant controlroom operators

  Experiences of development and first operational methodological and technical demonstrator application SSM perspective Background The ability of the control room operators is paramount to secure safe and stable ... same amount of operating incidents, as operators did twenty years ago. The last ten years concerns on operators’ future ability to meet challenges have been raised, e.g., the operators’ integrated system...

  Innehållstyp: Publikationer

• 2020:16 Estimates ofJ-integral and COD for circumferential through wall cracks under global bending including the effect of pipe end restraint

  SSM perspective Background Leak-before-break (LBB) piping assessments have shown that piping systems can withstand long through-wall cracks before pipe rupture is expected. This is somewhat because pipe ... investigate what impacts the assumption degree of restraint at the ends of an analysed piping segment have on leak-before-break assessments and leakage rate calculations. Results The study conclude that crack...

  Innehållstyp: Publikationer

• 2020:05 General data in accordance with the requirements in Article 37 of the Euratom Treaty

  Based on this local dose it is concluded that the decommissioning project poses no risk to any other member state. This report has been produced by the Swedish Radiation Safety Authority, SSM, mainly ... mainly based on information provided by the licence holder, Ringhals AB. SSM has checked that the general data provides the necessary information and that it complies with the guideline of the most recent recommendations...

  Innehållstyp: Publikationer

• 2020:02 Models for axial gas flow and mixing in LWR fuel rods

  SSM perspective Background Fission gases inside a fuel rod plays an important role in the behaviour of the fuel, both during normal operation and during events and accidents. Fission gases are released ... experiments have been done. Relevance With this project, SSM has obtained a computer code that can model axial fission gas transport in a fuel rod. SSM has also gained insight into how such a model is implemented...

  Innehållstyp: Publikationer

• 2020:15 Strålskyddsåtgärder vid radiologiska nödsituationer

  I den här rapporten redovisar Strålsäkerhetsmyndigheten (SSM) planeringsunderlag för strålskyddsåtgärder vid radiologiska nödsituationer i ... I den här rapporten redovisar Strålsäkerhetsmyndigheten (SSM) planeringsunderlag för strålskyddsåtgärder vid radiologiska nödsituationer i samband med händelser i beredskapskategori 4. Händelser i beredskapskategori...

  Innehållstyp: Publikationer

• 2020:06 Bestrålningsinducerad spänningskorrosion (IASCC) i BWR- och PWR-miljö

  En sammanställning av kunskapsläget med fokus på erfarenheter av studier genomförda i Sverige SSM perspektiv Bakgrund Bestrålningsinducerad spänningskorrosion (IASCC) är en åldringsmekanism som kan förekomma ... reaktorer kommer att vara i drift i 60 år och för vissa reaktorer planeras ännu längre drifttider. SSM har genom åren initierat och deltagit i ett stort antal forskningsprojekt inom området IASCC i rostfritt...

  Innehållstyp: Publikationer

• 2020:03 Extrautdelning och intag av jodtabletter för allmänheten i samband med en svensk kärnkraftsolycka

  Sammanfattning Strålsäkerhetsmyndigheten (SSM) redovisar i denna rapport beräkningar av de högsta sköldkörteldoserna som barn och vuxna kan erhålla genom att andas in radioaktiv jod i samband med en svensk ... införs kring kärnkraftverken enligt det förslag som SSM, Myndigheten för samhällsskydd och beredskap (MSB) samt berörda länsstyrelser redovisat i rapporten SSM 2017:27 Översyn av beredskapszoner. I rapporten...

  Innehållstyp: Publikationer