The University of Michigan
Department of Aerospace Engineering
| Plasmadynamics & Electric Propulsion Laboratory |
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PEPL Thrusters: NEXT LM4

Above: LM4 engine mounted on PEPL thrust stand. A vacuum rated camera mounted on a rotational theta table (shown to the left of the engine) allowed visual monitoring of the discharge cathode during ignition and provided flexibility in diagnosing any operating problems. (From ref. 1).

Above: LM4 operation with beam extraction in PEPL LVTF (chamber lights on). The engine is mounted on the thrust stand. The camera in mounted to an arm (shown in foreground) that is attached to a rotational theta table mounted above the engine. (From ref. 1)

Selected Relevant Publications

  1. Herman, D. A., "The Use of Electrostatic Probes to Characterize the Discharge Plasma Structure and Identify Discharge Cathode Erosion Mechanisms in Ring-Cusp Ion Thrusters," Ph.D. Dissertation, University of Michigan, 2005.
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