Charging Mitigation Experiments on Sounding Rockets

Details Charging Mitigation Experiments on Sounding Rockets Charging Mitigation Experiments on Sounding Rockets

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998sct..conf..315r&link_type=abstract

Proceedings of the 6th Spacecraft Charging Conference. November 2-6, 1998. AFRL Science Center, Hanscom AFB, MA, USA., p.315-321

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This paper introduces the general means, mitigation and measurement of spacecraft charging. The results from the NASA/ISAS CHARGE and DoD SPEAR sounding rocket programs are used to illustrate the effectiveness of different techniques to mitigate the electrical charge on the spacecraft. The two techniques of neutral gas or plasma release in addition to the emission of electron fluxes are demonstrated in several flights. Due to under-performance of the plasma release devices the results obtained show that, in general, neutral gas release is an effective means of mitigating electrical charge of either polarity. Electron beams are effective if the acceleration is provided by an internal power supply rather than the field produced by the charged spacecraft. Although differential biasing of sections of a spacecraft was employed as a charging technique it is pointed out that this can also be used as a charge mitigation technique for spacecraft charging processes independent of the differential biasing.

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