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Ion energies in an open-diode hollow cathode discharge

Record type: Conference or Workshop Item (Paper)

Ion energy measurements from a ¼ inch cathode were made with krypton and xenon expellants at a range of flow rates and discharge currents using an electrostatic energy analyzer mounted on axis. High energy ion content scaled strongly with discharge current and inversely with mass flow rate and molecular mass suggesting a possible MDH production mechanism. At high current conditions for krypton and xenon peak ion energies exceeded 130eV (>17kms-1) and 75eV (>10kms-1) with high energy tails extending well beyond 140eV and 200eV respectively. No conclusive correlation was found with discharge noise in the form of high frequency voltage oscillations and high energy ion content

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Citation

Grubisic, A.N., Polk, J.E. and Przybylowski, J.N. (2008) Ion energies in an open-diode hollow cathode discharge In Proceedings of the 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibition. American Institute of Aeronautics and Astronautics. 18 pp.

More information

Published date: 21 July 2008
Venue - Dates: 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibition, 2008-07-21 - 2008-07-23
Keywords: high energy ions, hollow cathode discharge, erosion
Organisations: Aeronautics, Astronautics & Comp. Eng

Identifiers

Local EPrints ID: 72466
URI: http://eprints.soton.ac.uk/id/eprint/72466
PURE UUID: 303f7813-5c86-403a-b57a-bdcda051b20c

Catalogue record

Date deposited: 15 Feb 2010
Last modified: 18 Jul 2017 23:54

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Contributors

Author: A.N. Grubisic
Author: J.E. Polk
Author: J.N. Przybylowski

University divisions


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