DOI: 10.1109/plasma.2004.1340008
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J. Partridge, N.A. Gatsonis

Abstract: A single-orifice Retarding Potential Analyzer (RPA) has been coupled with a microchannel plate (MCP) of 0.315% transparency to produce viable ion energy measurements within plasma plumes of density greater than 1~1 0 '~ nil, Consisting of several variably biased electrodes, an RPA sensor allows ions with sufficient energy access to a collection plate while repelling electrons and low energy ions. This paper addresses the experimental validation of a Directional microRetarding Potential Analyzer (DpRPA) to a s…

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