Managing Lunar and Mars Mission Radiation Risks Part I: Cancer Risks, Uncertainties, and Shielding Effectiveness
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منابع مشابه
Space Radiation Cancer Risk Projections for Exploration Missions: Uncertainty Reduction and Mitigation
Late effects from the high charge and energy (HZE) ions present in the galactic cosmic rays (GCR) including cancer and the poorly understood risks to the central nervous system constitute the major risks for exploration missions. Methods used to project risk in low Earth orbit (LEO) are viewed as highly uncertain for projecting risks on exploration missions because of the limited radiobiology d...
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Background: Radiation in space poses a threat to humans embarked on missions to the Moon or Mars. Several studies deal with allowable doses, levels of radiation doses in space, and effects of various forms of shielding. The recent shift in emphasis from "point estimates" to 95% confidence intervals adds significantly to the challenge in designing human space missions. Recent reports issued by N...
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The potential risks for late effects including cancer, cataracts, and neurological disorders due to exposures to the galactic cosmic rays (GCR) is a large concern for the human exploration of Mars. Physical models are needed to project the radiation exposures to be received by astronauts in transit to Mars and on the Mars surface, including the understanding of the modification of the GCR by th...
متن کاملHow Safe Is Safe Enough? Radiation Risk for a Human Mission to Mars
Astronauts on a mission to Mars would be exposed for up to 3 years to galactic cosmic rays (GCR)--made up of high-energy protons and high charge (Z) and energy (E) (HZE) nuclei. GCR exposure rate increases about three times as spacecraft venture out of Earth orbit into deep space where protection of the Earth's magnetosphere and solid body are lost. NASA's radiation standard limits astronaut ex...
متن کاملPaper MODELING THE ACUTE HEALTH EFFECTS OF ASTRONAUTS FROM EXPOSURE TO LARGE SOLAR PARTICLE EVENTS
Radiation exposure from Solar Particle Events (SPE) presents a significant health concern for astronauts for exploration missions outside the protection of the Earth’s magnetic field, which could impair their performance and result in the possibility of failure of the mission. Assessing the potential for early radiation effects under such adverse conditions is of prime importance. Here we apply...
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