Visualization of Particle Flux in the Human Body on the Surface of Mars
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概要
- 論文の詳細を見る
For a given galactic cosmic ray (GCR) environment, information on the particle flux of protons, alpha particles, and heavy ions, that varies with respect to the topographical altitude on the Martian surface, are needed for planning exploration missions to Mars. The Mars Global Surveyor (MGS) mission with its Mars Orbiter Laser Altimeter (MOLA) instrument has been providing precise topographical surface map of the Mars. With this topographical data, the particle flux at the Martian surface level through the CO_2 atmospheric shielding for solar minimum and solar maximum conditions are calculated. These particle flux calculations are then transported first through an anticipated shielding of a conceptual shelter with several water equivalent shield values (up to 50 g/cm^2 of water in steps of 5 g/cm^2) considered to represent a surface habitat, and then into the human body. Model calculations are accomplished utilizing the HZETRN, QMSFRG, and SUM-MARS codes. Particle flux calculations for 12 different locations in the human body were considered from skin depth to the internal organs including the blood-forming organs (BFO). Visualization of particle flux in the human body at different altitudes on the Martian surface behind a known shielding is anticipated to provide guidance for assessing radiation environment risk on the Martian surface for future human missions.
- 日本放射線影響学会の論文
著者
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CUCINOTTA Francis
NASA Lyndon B Johnson Space Center, Radiation Biophysics Laboratory Houston TX
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Wilson J
Nasa Va Usa
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WILSON JOHN
NASA Langley Research Center
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Cucinotta Francis
Nasa Lyndon B Johnson Space Center Radiation Biophysics Laboratory Houston Tx
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Saganti Premkumar
Lockheed Martin Space Operations, NASA-JSC
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Schimmerling Walter
NASA Langley Research Center
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Saganti Premkumar
Nasa Johnson Space Center:lockheed Martin Space Operations
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