TY - GEN
T1 - Transient phenomena in Hall thruster ignition and operation
AU - Ellison, C. L.
AU - Raitses, Y.
AU - Fisch, N.
PY - 2011
Y1 - 2011
N2 - High speed imaging of the thruster startup revealed a bright ionization period which settles into steady operation over ~50 μs. The cathode introduces azimuthal asymmetry which persists for ~30 μs into the ignition. In steady-state operation, this azimuthal non-uniformity disappears, while breathing ionization oscillations ~ 11 kHz can be observed. On high speed images, these oscillations manifest themselves as azimuthally symmetric oscillations in visible spectrum. Visual identification of the discharge non-uniformity at the ignition is relevant for practical applications of the Hall thrusters on satellites, and laboratory experiments with fast current interrupters.
AB - High speed imaging of the thruster startup revealed a bright ionization period which settles into steady operation over ~50 μs. The cathode introduces azimuthal asymmetry which persists for ~30 μs into the ignition. In steady-state operation, this azimuthal non-uniformity disappears, while breathing ionization oscillations ~ 11 kHz can be observed. On high speed images, these oscillations manifest themselves as azimuthally symmetric oscillations in visible spectrum. Visual identification of the discharge non-uniformity at the ignition is relevant for practical applications of the Hall thrusters on satellites, and laboratory experiments with fast current interrupters.
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M3 - Conference contribution
AN - SCOPUS:84880693971
SN - 9781600869495
T3 - 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011
BT - 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011
T2 - 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011
Y2 - 31 July 2011 through 3 August 2011
ER -