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TEPCO’s In-house Competitions for Improving Radiation Protection Skills

Learn about TEPCO's in-house techniques and skills competition for enhancing radiation protection skills. Discover the content, examination items, scoring method, and results of the competition. Gain insights from scenes and reflections on the competition.

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TEPCO’s In-house Competitions for Improving Radiation Protection Skills

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  1. TEPCO’s In-house Competitions for Improving Radiation Protection Skills Junichi TAIRA Tokyo Electric Power CompanyRadiation Protection Group ISOE International ALARASymposium November 13-14, 2008, Tsuruga, JAPAN

  2. Profile - Location

  3. TEPCO’s Nuclear Power Plants 17 BWRs including 2 ABWRs (total capacity 17,308MWe) - 28% of generation capacity - 41% of generated electricity (FY 2006)

  4. Contents • What is our In-house Techniques and Skills Competition? • Outline of In-house Techniques and Skills Competition • Content of the Competition • Examination Items • Scoring method • Scenes from the competition • Results of the Competition • Looking Back on the Competition

  5. What is our In-house Techniques and Skills Competition? • TEPCO has...-power transmission division-power distribution division-power generation division • In-house Techniques and Skills Competition -For maintaining and improvement of technical skills

  6. Outline of the In-house Techniques and Skills Competition 1/3 • The In-house Techniques and Skills Competition - the radiation control department of nuclear power station • Aim at-improvementin the skill and motivation required-opportunityto publicize the techniques -new appreciation of the level of present techniques-sharing good practices

  7. Outline of the In-house Techniques and Skills Competition 2/3 • Date April 10,2008- the Fukushima Daiichi NPS • A chamber thatsimulated the controlled areawas installed in a skill training center • Scenario- considerdingthe experienceof the Kashiwazaki-Kariwa NPS inthe Niigata Chuetsu-oki Earthquake

  8. Outline of the In-house Techniques and Skills Competition 3/3

  9. Content of the Competition Start • Flow of Competition Generation of a leakage event (system isolation completed) Quick response and measurement Cleanup and monitoring for giving instructions on Radiation Protection End

  10. Content of the Competition(layout) the non-controlled area(simulated) Service Building 1FL aisle 20000ml (the leakage of radioactive water) 1500ml (the leakage of non-radioactive water)

  11. Content of the Competition(layout) the controlled area clean up system pump room High radiation area ↓39Bq/cm2 ↓50mSv/h ● 24mSv/h laboratory ↓12Bq/cm2 ↓18Bq/cm2 ● ● germanium semiconductor detector ↓lower limit of detection (Bq/cm2) ●

  12. Content of the Competition(Examination Items)

  13. Content of the Competition(Examination Items)

  14. Content of the Competition(Examination Items)

  15. Quality 30POINTS Efficiency 30POINTS Safety 40POINTS Content of the Competition(Scoring method) 100POINTS

  16. Content of the Competition • Scenes from the competitionPlease look at the DVD....

  17. Results of the Competition • the same scores for the quality and safety examination items • ‘the Fukushimadaini.NPS Team’ received a high score for efficiency

  18. Looking Back on the Competition - Summary • Publicityabout the effort of our radiation control department regarding water leaks • Appreciationof the level of techniques and skills for radiation control and motivation • Drillsrepeated in preparation for competition • Taskbrought up in the review discussion

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