Controlled particle removal from surfaces by electrodynamic methods for terrestrial, lunar, and Martian environmental conditions

Details Controlled particle removal from surfaces by electrodynamic methods for terrestrial, lunar, and Martian environmental conditions Controlled particle removal from surfaces by electrodynamic methods for terrestrial, lunar, and Martian environmental conditions

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jphcs.142a2073c&link_type=abstract

Journal of Physics: Conference Series, Volume 142, Issue 1, pp. 012073 (2008).

Physics

1

Scientific paper

An Electrodynamic Dust Shield to remove already deposited micron-size particles from surfaces and to prevent the accumulation of such particles on surfaces has been developed. In addition to terrestrial application, our NASA laboratory is adapting this technology for the dusty and harsh environments of the Moon and Mars. The Apollo missions to the moon showed that lunar dust can hamper astronaut surface activities due to its ability to cling to most surfaces. NASA's Mars exploration landers and rovers have also shown that the problem is equally hard if not harder on Mars. In this paper, we show that an appropriate design can prevent the electrostatic breakdown at the low Martian atmospheric pressures. We are also able to show that uncharged dust can be lifted and removed from surfaces under simulated Martian environmental conditions. This technology has many potential benefits for removing dust from visors, viewports and many other surfaces as well as from solar arrays. We have also been able to develop a version of the electrodynamic dust shield working under hard vacuum conditions. This version should work well on the moon. We present data on the design and optimization of both types of dust shields as well substantial data on the clearing factors for transparent dust shields designed to protect solar panels for Martian exploration.

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