[Estimated cosmic radiation doses for flight personnel]

Area of Science:

• Radiological Protection
• Aviation Medicine
• Space Physics

Background:

• Cosmic radiation exposure is a concern for aviation workers.
• Accurate dose assessment is crucial for occupational health.

Purpose of the Study:

• To calculate the individual annual cosmic radiation effective dose for monitored flight personnel.
• To establish baseline radiation exposure levels for airline crew.

Main Methods:

• Utilized aircraft flight data and CARI-6 software for dose calculation.
• Estimated galactic cosmic radiation effective dose rates along flight paths.
• Calculated ground-level dose rates for comparison.

Main Results:

• Urumqi ground-level annual cosmic radiation dose was 0.420 mSv.
• Average flight effective dose rate was 2.381 μSv/h.
• Average annual dose for flight personnel was 2.193 mSv.

Conclusions:

• Individual annual cosmic radiation doses for flight personnel are below the ICRP's 20 mSv limit.
• The study provides essential data for occupational radiation safety in aviation.
• Findings support the adequacy of current radiation protection measures for aircrew.