Discharge chamber optimization of the Sert II thruster.

Bechtel, R. T.

doi:10.2514/3.29360

Cited by 20 publications

(4 citation statements)

References 3 publications

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“…Integration of a hollow cathode in a thruster requires a parametric effort of the type performed by Bechtel et al 2 The results obtained by Bechtel et al were utilized in this study, and only a limited number of parametric variations were performed. The major effort was devoted to probing and understanding the hollow cathode region.…”

Section: Cathode Location and Typementioning

confidence: 97%

Study and optimization of 15-cm Kaufman thruster discharges

Knauer

Poeschel

Ward

1970

Journal of Spacecraft and Rockets

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Parametric and diagnostic studies of the Kaufman thruster discharge have shown that the transmission of the ion extraction optics and the magnetic field shape are the parameters that most significantly affect thruster performance. A high transmission ion optical system produces unexpected beneficial changes in the discharge plasma; over-all plasma density and electron temperature are lowered and the plasma potential distribution inhibits much of the ion loss to discharge chamber electrodes. A magnetic field configuration that distributes energetic electrons across the entire extraction screen produces a uniform plasma density distribution and thereby significantly improves thruster performance. Several different magnetic configurations have been found to provide such uniformity. In all cases the discharge losses are similar, typically 190 ev/ion at 85% propellant utilization in mercury discharges with hollow cathodes and with ion optics of about 70% transmission.

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Section: Cathode Location and Typementioning

confidence: 97%

Study and optimization of 15-cm Kaufman thruster discharges

Knauer

Poeschel

Ward

1970

Journal of Spacecraft and Rockets

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“…Initially, the magnetic circuit was a SERT II divergent-field configuration (ref. 21). Later, it was modified to a cusp-field geometry.…”

Section: Ion Sourc Esmentioning

confidence: 99%

Ion Beam Technology and Applications

2023

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Ion propulsion research and development yields a mature technology that is transferable to a wide range of nonpropulsive applications, including terrestrial and space manufacturing. In this work a xenon ion source was used for an investigation into potential ion-beam applications, The objectives of the Lewis argon-source-development program are discussed; the results of cathode tests and discharge-chamber experiments are presented. A series of experiments encompassing a wide range of potential applications is discussed. Two types of processes, sputter deposition and erosion, were studied. Some of the potential applications are thin-film Teflon capacitor fabrication, lubrication applications, ion-beam cleaning and polishing, and surface texturing.

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“…The SERTII thruster is a high-performance engine which was / developed during an extensive test program involving over I00 discharge chamber configurations [20]. The goal of the present investigation is The neutral loss rate and propellant flow rate are related to the propellant utilization by the expression…”

Section: Thruster Lifetimementioning

confidence: 99%