Laboratory studies of the charge neutralization of a rocket payload during electron beam emission

Details Laboratory studies of the charge neutralization of a rocket payload during electron beam emission Laboratory studies of the charge neutralization of a rocket payload during electron beam emission

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980georl...7...93b&link_type=abstract

Geophysical Research Letters, vol. 7, Jan. 1980, p. 93-96.

Physics

Charge Distribution, Electron Beams, Electron Emission, Plasma Jets, Radio Frequency Discharge, Rocket Exhaust, Electron Guns, Electron Plasma, Neutral Gases, Payloads, Time Dependence, Vacuum Chambers

Scientific paper

The charge neutralization of an electrically-isolated rocket payload emitting an energetic electron beam has been studied in experiments in the large vacuum chamber at Johnson Space Center. The introduction of an RF-discharge-produced ambient plasma density (10,000 to 50,000 per cu cm) reduces the payload potential to 200 V for low current (1 and 10 ma) beams. The ignition of the beam-plasma discharge provides an efficient neutralization process for higher current beams.

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