In-Flight Radiation Measurements Aboard French Airliners

Abstract
Routine radiation monitoring has been carried out for more than 15 years aboard Air France airliners. Annual doses received by aircrews can be estimated in the 2-3 mSv range for subsonic long-haul aircrews. Recent dosimetric measurements, using CIRCE devices based on low-pressure TEPC microdosimetry techniques and by using new types of bubble damage detectors, seem to confirm partly these results. More investigations by these new techniques could be undertaken at other phases of the 11 year solar-cycle.

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