ANALYTICAL AND EXPERIMENTAL STUDIES TO DEVELOP ION ENGINE GROUND-TESTING TECHNIQUES

摘要

Techniques for ground--testing of ion engines obtained since publication of AEDC-TDR-62-152 (Sept. 1962) are reviewed. This report discusses pro¬cedures for the neutralization of ion beams and the re suits of experiments measuring the space charge and current neutrality achieved. Results of experiments with the window probe and a new probe for the meas-urement of beam potential are also presented. Results achieved with the methods described in the first Tech¬nical Documentary Report are discussed;more re¬cently developed methods and their results are also reviewed.