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Safe on Mars: Precursor Measurements Necessary to Support by National Research Council, Division on Engineering and

By National Research Council, Division on Engineering and Physical Sciences, Space Studies Board, Aeronautics and Space Engineering Board, Committee on Precursor Measurements Necessary to Support Human Operations on the Surface of Mars

This learn, commissioned via the nationwide Aeronautics and house management (NASA), examines the position of robot exploration missions in assessing the hazards to the 1st human missions to Mars. simply these risks bobbing up from publicity to environmental, chemical, and organic brokers on this planet are assessed. to make sure that it used to be together with all formerly pointed out dangers in its examine, the Committee on Precursor Measurements essential to aid Human Operations at the floor of Mars noted the newest record from NASA's Mars Exploration application/ Payload research team (MEPAG) (Greeley, 2001). The committee concluded that the necessities pointed out within the current NRC file are certainly the single ones crucial for NASA to pursue on the way to mitigate power dangers to the 1st human missions to Mars.

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Additional info for Safe on Mars: Precursor Measurements Necessary to Support Human Operations on the Martian Surface

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The Martian wind, while being a cause of dust deposition, should also help limit the amount of dust that will accumulate on an exposed surface. However, if habitat filters are not designed properly, they could clog from the dust and soil that enter the habitat after an EVA return. Dust accumulation on external communication antennas and solar panel arrays, for instance, could create very hazardous situations by disrupting critical communications or decreasing the efficiency of power generation systems.

The related (and difficult) task of forecasting SPEs at Mars in a timely fashion is important, but it is outside the purview of this committee. Recommendation: In order to validate the radiation transport codes, thereby ensuring the accuracy of radiation dose predictions, NASA should perform experiments to measure the absorbed dose in a tissue-equivalent material on Mars at a location representative of the expected landing site, including altitude and bulk elemental composition of the surface. The experiments should distinguish the radiation dose contribution induced by charged particles from that induced by neutrons.

Schimmerling, “NASA Strategic Program Plan for Space Radiation Health Research,” briefing to the committee, August 2, 2001. situ measurement instrument and experiment intended to verify radiation transport models. The models must be applicable to a three-dimensional structure in a complex three-dimensional environment. This theory and model development will allow NASA to gain confidence in their predictions of astronaut radiation doses. Two classes of simulations (Monte Carlo and analytic) are used to model radiation transport.

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