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  • 2018:19 Licensing of safety critical software for nuclear reactors

    1421 kB ... and demonstrations of safety of software based systems; – as guidance for manufacturers and major I&C suppliers on the international market. 10 Document Structure From the outset, attention ... technical reference for future improvements in its own regulatory guidance. * * * 13 I INTRODUCTION All government, – indeed every human benefit and enjoyment, every virtue and every...

    Innehållstyp: Dokument
  • 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...

    Innehållstyp: Dokument
  • 00:29 User Guide to SUNDT A Simulation Tool for Ultrasonic NDT

    snabbare, med större precision och till betydligt lägre kostnad än motsvarande experimentella studier. I denna rapport beskrivs programvaran SUNDT (Simulation tool for Ultrasonic NDT). Förutom att fungera ... Programvaran simulerar hela ultraljudsprovningen med kontaktsökare (valfri vågtyp, vinkel och kristallstorlek) i pulseko eller tandem uppsättning. Antalet valbara defekttyper är stort både vad gäller geometrisk utformning...

    Innehållstyp: Dokument
  • 2014:26 Improved reference and relative dosimetry of small radiation therapy photon beams

    errors have become considerably larger than in conventional beams mostly due to two reasons [1]: (i) the reference conditions recommended by Codes of Practice for conventional radiation therapy, like ... oscillators whose resonance energies are scaled so as to reproduce the mean excitation energies (I-values) recommended in ICRU Report 37 [14] (stopping powers thus agree closely with the tabulations...

    Innehållstyp: Dokument
  • 2015:09 PROSIR - Probabilistic Structural Integrity of a PWR Reactor Pressure Vessel

    1951 kB ... similar shift). These equations are defined below: SSM 2015:09 Page 4 of 36   I 36.5 3.1exp 0.036 55.5c NDTK T RT    (2.1)     2 0.3517.3 1537 0.008 238 0.08 191NDTRT ... 0E-06 1.0E-05 1.0E-04 1.0E-03 1.0E-02 1.0E-01 1.0E+00 3 5 7.5 10 Fluence in 10^23 n/m² P C I Participant 1 Participant 2 Participant 3 Participant 4-1 Participant 4-2 Participant 4-3 Participant...

    Innehållstyp: Dokument
  • 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.

    Innehållstyp: Dokument
  • 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...

    Innehållstyp: Dokument
  • Pronouncement concerning licence application under the Act on Nuclear Activities for proposed expanded operations at SFR.pdf

    pointed out by the Authority in the attached review report (Appendix 1). The review report (Part I, section 3.4.4) describes technical issues which SSM considers should be particularly taken into ... closure. For a more detailed line of reasoning relating to the reference design, see Appendix 1, Part I, section 3.1. In the context of the pre-existing facility, SSM exercises regulatory supervision...

    Innehållstyp: Dokument
  • 2010:05 Discrete-Feature Model Implementation of SDM-Site Forsmark

    5319 kB ... deposition-tunnel utilization factor is calculated as:  i iusable, spacingaccept L lN =ε where Naccept is the number of accepted positions and Lusable,i is the "usable" length of the ith deposition tunnel ... segments τi :       i iTiτ i iw r τb Δt= τv Δlτa=F 2  iτ r Δl=L  iτ r Δt=t     iτ iTiτ iwa τb Δl=Δlτa=I 2   iτ iTb Δlτb=I   iτ ic ΔlτT=I SSM 2010:05 15...

    Innehållstyp: Dokument
  • 01:44 Recharge-area Nuclear Waste Repository in Southeastern Sweden (pdf 1,58 Mb)

    Repository in Southeastern Sweden Demonstration of Hydrogeologic Siting Concepts and Techniques Clifford I. Voss Alden M. Provost November 2001 ISSN 1104-1374 ISRN SKI-R--01/44--SE Research SKI perspective ... : 14.9-000152/00034 and 14.9-000152/01267 SKI-perspektiv Bakgrund och syfte En viktig fråga i valet av slutförvarsplats är betydelsen av in- respektive utströmnings- områden och inlands- respektive...

    Innehållstyp: Dokument