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Biological Effects of Radiation02:59

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All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they produce ions...
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Dosimetry for Cell Irradiation using Orthovoltage (40-300 kV) X-Ray Facilities
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Published on: February 20, 2021

The SIEVERT system for aircrew dosimetry.

I Clairand1, N Fuller, J-F Bottollier-Depois

  • 1Institute for Radiological Protection and Nuclear Safety 92262, Fontenay-aux-Roses, France. isabelle.clairand@irsn.fr

Radiation Protection Dosimetry
|July 18, 2009
PubMed
Summary
This summary is machine-generated.

Airline companies must monitor flight personnel radiation exposure. The SIEVERT system helps evaluate cosmic radiation doses for air transport professionals and passengers, ensuring compliance with French regulations.

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Area of Science:

  • Radiation safety in aviation
  • Occupational health for flight crews

Background:

  • Flight personnel face significant radiation exposure annually.
  • French regulations mandate radiation exposure monitoring for airline employees.

Purpose of the Study:

  • To introduce the SIEVERT system for evaluating cosmic radiation doses in air transport.
  • To provide a tool for airlines to comply with exposure monitoring requirements.
  • To enable passengers to assess their radiation dose from flights.

Main Methods:

  • The SIEVERT system evaluates cosmic radiation exposure during flights.
  • Data from over 2.5 million flights processed by more than 30 French airlines.
  • Public access to the SIEVERT system via its website since March 2002.

Main Results:

  • The SIEVERT system has been operational since summer 2001.
  • Extensive use by French airlines for dose evaluation.
  • Public access allows passengers to calculate their flight radiation dose.

Conclusions:

  • The SIEVERT system is a vital tool for managing flight personnel radiation exposure.
  • It ensures regulatory compliance for airlines.
  • It empowers passengers with information about their radiation exposure.