Wed/Thurs Dec 3-4 Objective: Calculate the radiation exposure of different people. Checkpoint: How much radiation (in mSv) is a cancer risk? How much radiation.

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Presentation transcript:

Wed/Thurs Dec 3-4 Objective: Calculate the radiation exposure of different people. Checkpoint: How much radiation (in mSv) is a cancer risk? How much radiation (in mSv) will get you sick? How much radiation (in mSv) will kill you? Convert 100 uSv into mSV Homework: – Finish radiation case studies and PPT presentation 100 mSv 1000 mSv 2000 mSv 100 / 1000 = 0.1 mSv

The story so far… We need electricity

Burning fossil fuels to get electricity pollutes the environment and is unsustainable.

Nuclear power is an alternative. No air pollution (only water vapor) but it produces radiation.

How much radiation are we exposed to? How much radiation is safe?

Radiation Exposure: Case Studies

Scientist visiting Chernobyl 25 years after the accident. Lifelong power plant worker involved in the 3 Mile Island accident Fisherman living near Fukushima accident

Type of Radiation Amount of daily dose (include units in mSv) Total yearly dose (include units in mSv) Living within 50 miles of nuclear power plant. Yearly dose from natural potassium in the body Living in a brick house Maximum external dose from Three Mile Island accident Average total dose from Three Mile Island accident to someone living within 10 miles Sleeping next to someone Background dose received by an average person over one normal day Total yearly exposure =

Type of Radiation Amount of daily dose (include units in mSv) Total yearly dose (include units in mSv) Background radiation received by an average person over one normal day Yearly dose from natural potassium in the body Airplane flight from New York to Russia Dose from spending an hour on the grounds at the Chernobyl plant in 2010, over 20 years later. Total yearly exposure =

Type of Radiation Amount of daily dose (include units in mSv) Total yearly dose (include units in mSv) Background radiation received by an average person over one normal day Yearly dose from natural potassium in the body Sleeping next to someone Living in a stone house Using a CRT monitor for a year Extra dose from one day in an average town near the Fukushima plant Living within 50 miles of a nuclear power plant for a year One day dose at sites near Fukushima Total yearly exposure =

Type of Radiation Amount of daily dose (include units in mSv) Total yearly dose (include units in mSv) Background radiation received by an average person over one normal day Yearly dose from natural potassium in the body Living within 50 miles from a coal power plant X-ray from root canal Second X-ray from root canal mammogram Chest CT scan Total yearly exposure =

Type of Radiation Amount of daily dose (include units in mSv) Total yearly dose (include units in mSv) Background radiation received by an average person over one normal day Yearly dose from natural potassium in the body Flight from Colorado to New York (12 one way flights) 2 bananas a day per year 2 X-rays (for broken hand and collar bone) Flight to Fukushima (2 one way flights) Extra dose from one day in an average town near the Fukushima plant One day dose at sites near Fukushima Total yearly exposure =

Create a presentation using: Google Slides Share it with your partner so you both have access.

Your presentation should include: 1 slide for Case Study #1 1 slide for Case Study #2 Disaster 1 information (3 Mile Island, Chernobyl, or Fukushima) Disaster 2 information (3 Mile Island, Chernobyl, or Fukushima)

Disaster Slides: Choose 2 and answer all the questions for both disasters 3 Mile Island, Chernobyl, or Fukushima Where did it happen? Include a map. When did it happen? Describe the accident. Include pictures. How many people were evacuated? How many people died?