• Corpus ID: 249151960

Modeling the effectiveness of radiation shielding materials for astronaut protection on Mars

@inproceedings{Gakis2022ModelingTE,
  title={Modeling the effectiveness of radiation shielding materials for astronaut protection on Mars},
  author={Dionysios Gakis and Dimitra Atri},
  year={2022}
}
The surface of Mars is bombarded by energetic charged particles of solar and galactic origin with little shielding offered by a thin atmosphere and lack of a global magnetic field. As space agencies around the globe are planning for crewed missions to the planet, one has to account for a number of factors, a major one being the impact of ionizing radiation on astronaut health. Keeping optimal exposure below acceptable radiation dose levels is crucial for good health and survival of the crew. In… 

Radiation protection and shielding materials for crewed missions on the surface of Mars

A potential crewed mission to Mars would require us to solve a number of problems, including how to protect astronauts against the devastating effects of energetic charged particles from Solar and

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Using a combination of radiation measurements and numerical modeling with the GEANT4 package, the distribution of radiation dose in various human body organs for various expected scenarios simulated with a model human is calculated.

Crewed Missions to Mars: Modeling the Impact of Astrophysical Charged Particles on Astronauts and Assessing Health Effects

This work calculates the distribution of radiation dose in various organs of the human body for various expected scenarios simulated with a model human phantom, and suggests mitigation strategies such as improved ways of shielding and dietary supplements, and makes recommendations for the safety of astronauts in future crewed missions to Mars.

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Recent studies using NASA Langley Research Center's HZETRN space radiation transport code show that the low energy neutron fluence on the Martian surface is larger than previously expected.
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