Physics
Scientific paper
Feb 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991stin...9117997s&link_type=abstract
Unknown
Physics
Females, Mammary Glands, Manned Space Flight, Proton Energy, Radiation Dosage, Solar Cosmic Rays, Spacecraft Shielding, Energy Spectra, Geomagnetism, Magnetic Storms, Protons, Radiation Tolerance, Risk, Solar Flares
Scientific paper
No regulatory dose limits are specifically assigned for the radiation exposure of female breasts during manned space flight. However, the relatively high radiosensitivity of the glandular tissue of the breasts and its potential exposure to solar flare protons on short- and long-term missions mandate a priori estimation of the associated risks. A model for estimating exposure within the breast is developed for use in future NASA missions. The female breast and torso geometry is represented by a simple interim model. A recently developed proton dose-buildup procedure is used for estimating doses. The model considers geomagnetic shielding, magnetic-storm conditions, spacecraft shielding, and body self-shielding. Inputs to the model include proton energy spectra, spacecraft orbital parameters, STS orbiter-shielding distribution at a given position, and a single parameter allowing for variation in breast size.
Atwell William
Hardy Alva C.
Poston John W.
Shavers Mark
Wilson William J.
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