Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990stin...9114265n&link_type=abstract
Unknown
Astronomy and Astrophysics
Astronomy
Extraterrestrial Radiation, Protons, Radiation Dosage, Radiation Shielding, Solar Flares, Aluminum, Baryons, Deep Space, Eye (Anatomy), Fluence, Goes 7, Organs, Skin (Anatomy)
Scientific paper
Potential dose and dose rate levels to astronauts in deep space are predicted for the solar flare event which occurred during the week of August 13, 1989. The Geostationary Operational Environmental Satellite (GOES-7) monitored the temporal development and energy characteristics of the protons emitted during this event. From these data, differential fluence as a function of energy was obtained in order to analyze the flare using the Langley baryon transport code, BRYNTRN, which describes the interactions of incident protons in matter. Dose equivalent estimates for the skin, ocular lens, and vital organs for 0.5 to 20 g/sq cm of aluminum shielding were predicted. For relatively light shielding (less than 2 g/sq cm), the skin and ocular lens 30-day exposure limits are exceeded within several hours of flare onset. The vital organ (5 cm depth) dose equivalent is exceeded only for the thinnest shield (0.5 g/sq cm). Dose rates (rem/hr) for the skin, ocular lens, and vital organs are also computed.
Nealy John E.
Sauer Herbert H.
Simonsen Lisa C.
Townsend Lawrence W.
Wilson William J.
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