Preliminary calculation of solar cosmic ray dose to the female breast in space mission

Technical Report · Fri Feb 01 04:00:00 EST 1991

OSTI ID:5915906

Shavers, M; Poston, J W; Atwell, W; Hardy, A C; Wilson, J W

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.

• Research Organization: National Aeronautics and Space Administration, Hampton, VA (USA). Langley Research Center
• OSTI ID: 5915906
• Report Number(s): N-91-17997; NASA-TM--4235; L--16833; NAS--1.15:4235
• Country of Publication: United States
• Language: English

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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ASTRONAUTS
BEAMS
BODY
COSMIC RADIATION
DATA
DOSES
ENERGY SPECTRA
GLANDS
HAZARDS
HEALTH HAZARDS
INFORMATION
IONIZING RADIATIONS
MAGNETIC STORMS
MAMMARY GLANDS
MATHEMATICAL MODELS
NUCLEON BEAMS
NUMERICAL DATA
ORGANS
PARTICLE BEAMS
PERSONNEL
PROTON BEAMS
RADIATION DOSES
RADIATION HAZARDS
RADIATIONS
SHIELDING
SOLAR ACTIVITY
SOLAR FLARES
SPACE FLIGHT
SPACE VEHICLES
SPECTRA
THEORETICAL DATA
VEHICLES