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Related Experiment Videos

Martian regolith as space radiation shielding.

L C Simonsen1, J E Nealy, L W Townsend

  • 1NASA Langley Research Center, Hampton, Virginia 23665.

Journal of Spacecraft and Rockets
|January 1, 1991
PubMed
Summary

Mars mission radiation exposure is a concern. Using Martian regolith for shielding can help protect astronauts from harmful galactic cosmic rays and solar flare protons during long surface stays.

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A new Mars radiation environment model with visualization.

Advances in space research : the official journal of the Committee on Space Research (COSPAR)·2005

Area of Science:

  • Space exploration
  • Radiation physics
  • Astrobiology

Background:

  • Extended crewed missions to Mars necessitate understanding surface radiation environments.
  • Galactic cosmic rays (GCR) and solar flare protons pose significant radiation risks.
  • Current mission plans require dose estimations for the entire mission duration.

Purpose of the Study:

  • To estimate surface radiation doses on Mars.
  • To evaluate the shielding effectiveness of the Martian atmosphere and regolith.
  • To inform radiation protection strategies for future Mars exploration crews.

Main Methods:

  • Modeling the transport and attenuation of GCR and solar flare protons.
  • Simulating radiation penetration through the Martian atmosphere.
Keywords:
NASA Discipline Number 04-10NASA Discipline Radiation HealthNASA Program Radiation Health

Related Experiment Videos

  • Analyzing the impact of Martian regolith as additional shielding.

    • Main Results:

    • The Martian atmosphere offers some protection against GCR and solar protons.
    • Significant radiation doses are incurred during transit, impacting allowable surface doses.
    • Martian regolith presents a viable in-situ resource for radiation shielding.

    Conclusions:

    • Additional shielding, potentially from Martian regolith, is crucial for managing astronaut radiation exposure.
    • Effective radiation shielding is critical for enabling long-duration Mars surface missions.
    • In-situ resource utilization for shielding minimizes Earth launch weight requirements.