United States Department of Transportation
What Aircrews Should Know about Their Occupational Exposure to Ionizing Radiation
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2003-10-01
File Language:
English
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Abstract:Aircrews are occupationally exposed to ionizing radiation, principally from galactic cosmic radiation. A main source of galactic cosmic radiation is believed to be supernovae. On infrequent occasions, the sun contributes to the ionizing radiation received during air travel. Ionizing radiation consists of subatomic particles that, on interacting with an atom, can cause the atom to lose one or more orbital electrons or even break apart its nucleus. Such events occurring in body tissues may lead to health problems. For aircrews, and their children irradiated in utero, the principal health concern is a small increase in the lifetime risk of fatal cancer. For both of these groups, exposure to ionizing radiation also leads to a risk of genetic defects in future generations. The FAA recommends limits for aircrews in their occupational exposure to ionizing radiation and provides computer software for estimating the amount of galactic cosmic radiation received on a flight.
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Main Document Checksum:urn:sha256:7023e93c761f3b702987b2cb6d883c61e1cf3325c344d2bd413a4155c8c0dcbd
File Language:
English
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FAA Civil Aerospace Medical Institute