Device for reducing the impact on a surface section by positively charged ions, and ion accelelerator arrangement
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United States of America Patent
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Feb 3, 2015
Grant Date -
Apr 7, 2011
app pub date -
Sep 12, 2008
filing date -
Sep 14, 2007
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Abstract
The invention relates to a surface section that is exposed to an ion flow, in particular for a drive arrangement in a spacecraft, comprising an electrostatic ion accelerator arrangement. According to the invention, in order to reduce erosion, an intermediate potential energy surface is provided, the surface being advantageous in that it allows a magnetic field that is essentially parallel to the surface section to be formed.
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