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Safety at ESS. Thomas Hansson Nuclear Safety Engineer at ESS, since November 2011 Experience from Swedish Nuclear Power Plants since 1991 (Mainly Fuel.

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Presentation on theme: "Safety at ESS. Thomas Hansson Nuclear Safety Engineer at ESS, since November 2011 Experience from Swedish Nuclear Power Plants since 1991 (Mainly Fuel."— Presentation transcript:

1 Safety at ESS

2 Thomas Hansson Nuclear Safety Engineer at ESS, since November 2011 Experience from Swedish Nuclear Power Plants since 1991 (Mainly Fuel Analysis and Safety Analysis) Education: MSc Engineering Physics, Lund

3 page A world leading European science lab A world leading European science lab Scientific breakthroughs expected Scientific breakthroughs expected Challenging and complex technology Challenging and complex technology Large investments and significant annual budget Large investments and significant annual budget MAX IV: a synchrotron radiation facility with two storage rings (1.5 GeV and 3 GeV) for the production of soft and hard x-rays. A short pulse facility ESS: European Spallation Source - A single ion source: H + - Proton Linac: 5 MW, 20 Hz, 2.5 GeV, LP 2.0 ms - A single target station, cold & cold-thermal moderators - Target material not yet decided - 22 instruments or more, prel. range between 25-300 m

4 page Sweden, Denmark and Norway, 50% of construction and 20% of operations costs ESS partner countries The remaining part provided through European partners

5 page Time lines Pre-construction phase2010-2012 (Design Update) Construction phase2013-2018 Completion phase2018-2025 (Operation 2019) Operations phase2026-2066 Decommissioning phase 2067-2071 first design 2002-2003 ESFRI Report 2003 site decision 2009

6 page Licensing / Health Safety Environment - Peter Jacobsson, Team Manager - Gitte Myhre, Application to Environmental Court - Lars Lavesson, Planning and Building Application - Thomas Hansson, PSAR and Application to the Swedish Radiation Protection Authority

7 page Radiation Protection Safety

8 page Swedish Nuclear Technology Law (or Act) 3,4 and 10 § “Lag om kärnteknisk verksamhet 1984:10”, revised 2010 Swedish Radiation Protection Law (or Act) “Strålskyddslag 1988:220”, revised 2010 Radiation Protection Ordinance (or Enactment) “Strålskyddsförordning 1988:293”, revised 2009 Regulations for Accelerators and “Closed radiation sources” “SSMFS 2008:27”, revised 2009 Regulations for “Closed radiation sources” with high activity “SSMFS 2008:9”, revised 2009 Regulations for “Open radiation sources” “SSMFS 2010:2”, revised 2010 Recommendations for public exposure to Electromagnetic fields “SSMFS 2008:18”, revised 2009 etc Requirements ✔ Approx 60 regulations

9 page Safety Issues I. source term, radiation, activation and emissions II. waste and decommissioning III. defining the critical group IV. defining preliminary barriers and their belonging requirements V. methodology in order to identify Initiating Events VI. preliminary thoughts about zoning of the facility VII. initial discussions of how to make a “fingerprint” of the soil VIII. a procedure in order to decide about standards and norms IX. an overview of codes we aim to use in needed calculations

10 page

11 Deterministic Safety Analysis for NPP in Sweden Conservative estimations (NRC Reg. Guide 1.183) Realistic calculations (SSM 2008/1945) Normal Operation & Maintenance Normal Operation & Maintenance 0.1 [mSv/y] H1

12 page Deterministic Safety Analysis for NPP in Sweden Conservative estimations (NRC Reg. Guide 1.183) Preliminary SAR -> 2011 Realistic calculations (SSM 2008/1945) SAR 2012 - - -> Normal Operation & Maintenance Normal Operation & Maintenance 0.1 [mSv/y] H1

13 page Deterministic Safety Analysis for NPP in Sweden Conservative estimations (NRC Reg. Guide 1.183) Preliminary SAR -> 2011 Realistic calculations (SSM 2008/1945) SAR 2012 - - -> Normal Operation & Maintenance Normal Operation & Maintenance Expected Events during Lifetime Expected Events during Lifetime 0.1 1 [mSv/y] H1 10 -2 ≤ H2

14 page Deterministic Safety Analysis for NPP in Sweden Conservative estimations (NRC Reg. Guide 1.183) Preliminary SAR -> 2011 Realistic calculations (SSM 2008/1945) SAR 2012 - - -> Normal Operation & Maintenance Normal Operation & Maintenance Expected Events during Lifetime Expected Events during Lifetime Unexpected Events Unexpected Events 0.1 1 10 [mSv/y] H1 10 -2 ≤ H2 10 -4 ≤ H3 ≤ 10 -2 10 -6 ≤ H4 ≤ 10 -4 H5 ≤ 10 -6

15 page

16

17 Thank You!

18 page Backup slides

19 page Safety Issues - defining preliminary barriers and their belonging requirements

20 page Safety Issues - preliminary thoughts about zoning of the facility Possible categorization of the controlled area

21 page Safety Issues - initial discussions of how to make a “fingerprint” of the soil

22 page Swedish Nuclear Technology Law (or Act) 3,4 and 10 § “Lag om kärnteknisk verksamhet 1984:10”, revised 2010 Swedish Radiation Protection Law (or Act) “Strålskyddslag 1988:220”, revised 2010 Requirements (SSMFS) ! Detailed construction Guides & Standards Safety Issues - a procedure in order to decide about standards and norms - an overview of codes we aim to use in needed calculations

23 page Normal annual dose rates for the public in Sweden

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