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Sources of Radiation Exposure

pie graph from EPA website http://www.epa.gov/rpdweb00/images/understand/rad_sources.jpg

Comparative Exposures

Radiation Source Exposure (mSv)
Japan - contamination in AK 2E-12
Background - All sources - Alaska 6.2
TSA - Airport Scanner - claimed 0.00002/scan
Transcontinental flight 0.2/flight
DEXA scan 0.001/scan
Chest x-ray (trained operator - AK) 0.09
Mammogram 0.04
Chest x-ray (un-trained operator) 5.4
Barium enema 7
CT abdomen 10
Coronary angiogram 8-60.0
Japan - 3 workers 170-180
Radiation sickness 1,000
Death 6,000