PARTICLE ACCELERATION WITH ELECTROSTATIC AND DIELECTROPHORETIC FORCES WITH APPLICATIONS TO DUST REMOVAL DURING LUNAR MISSIONS
Small dust particles that are electrostatically charged can be accelerated from rest by electrostatic and dielectrophoretic forces Pohl 1979. This phenomenon can be used to remove dust particles from surfaces and a method to perform this task was proposed in the 1960s by NASA Tatom 1967. Subsequent work performed by Masuda and collaborators at the University of Tokyo showed that the technique was feasible Masuda 1970. During the last few years, NASAs Electrostatics and Surface Physics Laboratory, in collaboration with several universities, has developed the technology for space applications, in particular, for the lunar environment Calle 2004, 2008; Mazumder 2006. In this paper, we report on our efforts to develop the Dust Shield, a dust removal technology to remove dust from surfaces and to prevent its accumulation on those surfaces at high vacuum conditions. Based on Tatoms idea, the Dust Shield uses electrode patterns designed to generate a electrostatic and dielectrophoretic forces on charged dust particles from under 10 micrometers to several hundred micrometers in diameter. We also include the results of computer simulations of the devices interacting with charge particles of various dimensions..
C.I.Calle S.Trigwell J.L.McFall C.R.Buhler S.J.Snyder E.E.Arens A.Chen M.L.Ritz J.S.Clements C.R.Fortier
NASA Electrostatics and Surface Physics Laboratory Kennedy Space Center,FL 32899 ASRC Aerospace,Kennedy Space Center Department of Physics,Oklahoma Baptist University Department of Physics and Astronomy,Appalachian State University
国际会议
The 6th International Conference on Applied Electrostatics(第六届国际静电应用会议)
上海
英文
59
2008-11-03（万方平台首次上网日期，不代表论文的发表时间）