Visar 3297 sökträffar på ”Mätningar i skolmiljö”
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Appendix 4 The fuel fabrication plant in Västerås
4E+13 Halogens I-131 8.02 d 3.2E+11 3.2E+10 2.9E+11 I-132 2.30 h 3.9E+13 3.9E+12 3.5E+13 I-133 20.8 h 5.9E+12 5.9E+11 5.3E+12 I-134 52.5 min. 1.5E+14 1.5E+13 1.3E+14 I-135 6.57 h 1.7E+13 ... outcomes for ground deposition of iodine (I-131) and strontium (Sr-89 and Sr-90) are shown in Figure 8 and Figure 9. The intervention level for ground deposition of I-131, at 5 kBq/m2, may be exceeded out...
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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
Equation (4-4) where, rf is the repository fracture radius and sjA(i) is the area of the i-th smooth joint. Figure 4-6. Disk fracture (side view: a, front view: c) and representation ... stress model. Table 4-7 lists the magnitudes of each in- situ stress components of the stress models: (i) S1: Present day most likely stress model (Martin 2007); (ii) S2: Glacially induced stress model in...
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Model summary report.pdf
och anläggningens drift Kapitel 5 Anläggnings- och funktionsbeskrivning Kapitel 6 Radioaktiva ämnen i anläggningen Kapitel 7 Strålskydd och strålskärmning Kapitel 8 Säkerhetsanalys Repository production ... miljökonsekvens- bedömning Vattenverksamhet Laxemar-Simpevarp Vattenverksamhet i Forsmark I Bortledande av grundvatten Vattenverksamhet i Forsmark II Verksamheter ovan mark Avstämning mot miljömål Comparative...
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02:21 (SSI 2002:12) Formulation and Presentation of Risk Assessments to Address Risk Targets for Radioactive Waste Disposal (pdf 554 kB)
those of the author/authors and do not necessarily coincide with those of the SKI and the SSI. i Executive Summary The Swedish regulators have been active in the field of performance assessment of ... att beskriva olika scenarior och andra aspekter av analysen. Hittills har man i dessa analyser ofta kvantifierat säkerheten i termer av dos för jämförelse med ett doskriterium. SSI:s föreskrifter om slutligt...
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2004:55 Development of an Input Model to MELCOR 1.8.5 for the Ringhals 3 PWR
1034 kB ... simulate the whole course of events in a severe accident from the initiating event to the source term, i. e. radioactive releases to the environment. In Sweden, MELCOR has mostly been employed in some International ... those of the author/authors and do not necessarily coincide with those of the SKI. i CONTENTS ABSTRACT iii SAMMANFATTNING (In Swedish) iv 1. INTRODUCTION 1 2. RINGHALS...
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2014:21 Effects of additives on uranium dioxide fuel behavior
References 58 Appendix A Thermophysical correlations 59 Appendix B Fission gas release equations 61 I SSM 2014:21 Abstract The main incentive to dope UO2 fuel with a small amount of metal oxides, ... bränsle innehållande tillsatser. Tillsatserna som beaktas är de för vilka studier finns rapporterade i öppen litteratur. Huvudakligen diskuteras Cr2O3, men vi inkluderar även Al2O3, MgO och Nb2O5. Lämpliga...
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2009:33 Workshop on spent fuel performance, radionuclide chemistry and geosphere transport parameters, Lidingö 2008: Overview and evaluation of recent SKB procedures
buffer loss immediately, with results similar to the main scenario. While in previous assessments, I-129 was the dominant radionu- clide, the current safety assessment results indicated that Ra-226 is ... implanted with iodine (I-127) of 800 keV at fluences of 1011and 1012 at/cm2. Samples were irradiated under various conditions in order to simu- late the mobility of atoms due to (i) ballistic collisions...
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2011:13 Investigation of Discrete-Fracture Network Conceptual Model Uncertainty at Forsmark
3825 kB ... of α was adjusted manually to approximately minimize the squared residuals: i ii xhPxP=r 2 01 2 where: xi = position of the centre of the ith borehole interval (of 1 ... i iendiplugiusable lll=L where: li = length of the ith deposition tunnel lplug(i) = length reserved for a plug at the entrance to the ith deposition tunnel lend(i) = Minimum...
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13_Educating about radiation risks in high schools_Andrzej Wojcik.pdf
1862 kB ... of what they should do with a positive diagnosis. What is more harmful: uncertaintly about whether I will develop radiation- induced thyroid cancer (low risk) or overdiagnosis (high risk)? Example 2.
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2011:04 Evaluation of the Technical Basis for New Proposals of Fatigue Design of Nuclear Components
affected the parameters in Table 2. The results are expressed in terms of the parameter A in Eq. (2), i. e. the parameter that primarily controls the low-cycle fatigue life. The condition set up for the ... surface initial crack nucleate and propagate in the maximum shear direction. During this stage, stage I, the cracks interact strongly with the microstructure of the material. The cracks are called micro-structurally...
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