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Solar Particle Events Observed by the Odyssey MARIE Instrument at Mars: Dose and Model CalculationsOne of the primary concerns prior to human exploration of Mars is the need to accurately characterize the charged particle radiation environment both for the surface stay, and for the transit period to and from the planet. The Odyssey spacecraft, currently in Mars orbit includes a charged particle radiation detector, MARIE, which can measure particle fluxes with energies above approx. 30 MeV and charges between 1 and 10. Two classes of particles are of particular interest: the Galactic Cosmic Rays, (GCR), and those charged particles associated with Solar Particle Events, (SPE). The GCR are present continuously throughout the solar activity cycle, and their numbers vary inversely with the level of solar activity. They are characteristically more energetic than those particles originating from solar activity, and hence less influences by the solar magnetic field.
Document ID
Acquisition Source
Document Type
Conference Paper
Cleghorn, T. F.
(NASA Johnson Space Center Houston, TX, United States)
Saganti, P. B.
(Lockheed Martin Space Systems Co. Webster, TX, United States)
Zeitlin, C. J.
(California Univ., Lawrence Berkeley National Lab. Berkeley, CA, United States)
Cucinotta, F. A.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Lunar and Planetary Science XXXIV
Subject Category
Solar Physics
Distribution Limits
Public Use Permitted.
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