Effect of solar energetic particle (SEP) events on the radiation exposure levels to aircraft passengers and crew: Case study of 14 July 2000 SEP event

Details Effect of solar energetic particle (SEP) events on the radiation exposure levels to aircraft passengers and crew: Case study of 14 July 2000 SEP event Effect of solar energetic particle (SEP) events on the radiation exposure levels to aircraft passengers and crew: Case study of 14 July 2000 SEP event

Nov 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004jgra..10911103i&link_type=abstract

Journal of Geophysical Research, Volume 109, Issue A11, CiteID A11103

Astronomy and Astrophysics

Astrophysics

1

Interplanetary Physics: Cosmic Rays, Interplanetary Physics: Energetic Particles, Solar, Solar Physics, Astrophysics, And Astronomy: Energetic Particles (2114), Solar Physics, Astrophysics, And Astronomy: Flares, Public Issues: Workforce

Scientific paper

We investigate the circumstances required for aircrew and passengers to experience an increased radiation exposure rate from a solar energetic particle (SEP) event occurring during a flight. The effects of the 14 July 2000 National Oceanic and Atmospheric Administration S3 class SEP event are examined using ground-based and satellite measurements together with coincident measurements made using a tissue equivalent proportional counter (TEPC) on board a Virgin Atlantic Airways flight from London Heathrow to Hong Kong. In this paper we present the first measurements made during a SEP event using a TEPC at flight altitudes. Our results indicate that there were no increased radiation levels detected during the flight due to the SEPs, but the measurements agreed well with the CARI-6 model calculations made using a heliocentric potential value derived immediately prior to the SEP event. In addition, a prolonged increase in the >85 MeV particle flux is observed for up to 2 days after the SEP onset by the SAMPEX spacecraft at latitudes >55°.

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