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PSC 4010

PSC 4010. Nuclear Technology: A matter of Energy. PSC 4010: Chapter 6. Goals: _SWBAT match each unit of measure for radiation with the phenomenon it measures _SWBAT describe risks and advantages of using nuclear energy. PSC 4010: Chapter 6. PSC 4010: Chapter 6. Source of radiations

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PSC 4010

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  1. PSC 4010 Nuclear Technology: A matter of Energy

  2. PSC 4010: Chapter 6 Goals: _SWBAT match each unit of measure for radiation with the phenomenon it measures _SWBAT describe risks and advantages of using nuclear energy

  3. PSC 4010: Chapter 6

  4. PSC 4010: Chapter 6 Source of radiations (p. 6.8 – 6.14): Natural radiations (very small doses) • Space & atmosphere (altitude*) • Food (Potassium-39) • Food (Strontium-90: leukemia & bone cancer) • Building materials (Radon) • Tobacco (16 times Canadian Standards / Twice nuclear plant operators) • Humans

  5. PSC 4010: Chapter 6 Source of radiations (p. 6.8 – 6.14): Man-made radiations (very well known) • Nuclear testing fallouts • Nuclear plants (living nearby or working) • Medical treatment (X-rays, tracers, chemotherapy)

  6. PSC 4010: Chapter 6 Risks (Mining) (p. 6.15 – 6.19): • Contamination of treatment water and water bodies nearby (lakes, rivers, etc.) • Cancer (very high, due to Radon) • Requires: • Better ventilation systems • Cleaning of outerwear • Showers

  7. PSC 4010: Chapter 6 Other risks (p. 6.19 – 6.20): • Use & Refining of Uranium (Refining plants often built close to power plants to minimize transportation) • Malfunction of nuclear power plant (use of moderator, coolant and containment shield)

  8. PSC 4010: Chapter 6 Risks (Health) (p. 6.42 – 6.49): Radioactive gases leaking out of nuclear power stations can: • Attack genes (cells) and cause mutations • Cause cancers and malignant tumors • Cause fetal malformations • Bring about miscarriages • Shorten people’s life expectancy

  9. PSC 4010: Chapter 6 Risks (Environment) (p. 6.49 – 6.56): • Animals and Plants are affected just like humans (not cockroaches!) • Whole food chain is affected • “Nuclear Winter” (dust from explosions could create a thick layer in atmosphere, this would prevent sun’s light and heat to reach Earth)

  10. PSC 4010: Chapter 6 Risks (Military applications) (p. 6.39 – 6.42): • Mankind destruction • Testing (lethal to some)

  11. PSC 4010: Chapter 6 Military & Civilian benefits (p. 6.57 – 6.62): • Nuclear weapons have prevented WWIII • Medical applications • Electricity production • Food irradiation • Art preservation (by irradiation)

  12. PSC 4010: Chapter 6 Economic benefits (p. 6.63 – 6.64): • Canada’s #1 Uranium producer (world) • 100 000 nuclear energy related jobs • World wide sales of CANDU reactors (and expertise) • No need to import large amounts of oil or coal to produce electricity • Clean energy source (no chemical pollution)

  13. PSC 4010: Chapter 6 Environmental benefits (p. 6.57 – 6.62): • Clean source of energy (no chemical pollution) • One of safest ways to produce electricity (second to hydroelectricity)

  14. PSC 4010: Chapter 6 Practice Exercises for Chapter 6: • Page 6.72 – 6.75 – Ex 6.67 – 6.83

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