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ANALYTICAL AND EXPERIMENTAL STUDIES TO DEVELOP ION ENGINE GROUND-TESTING TECHNIQUES
HUGHES RESEARCH LABS MALIBU CA
Techniques for ground-testing of ion engines are reviewed. Procedures for the neutralization of ion beams and the results of experiments measuring the space charge and current neutrality achieved are presented. Results of experiments with the window probe and a new probe for the measurement of beam potential are also presented. Results achieved with the methods described in the first Technical Documentary Report are discussed more recently developed methods and their results are also reviewed.
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