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Hollow cathode chemical modelling

Record type: Conference or Workshop Item (Paper)

In this paper the state of hollow cathode life time modelling at the University of Southampton will be reported. Two models have been developed: one for BaO depletion from the hollow cathode insert and another for low work function compounds deposition and desorption. The model developed to predict BaO depletion from hollow cathode insert will be presented together with some comparison between experimental and numerical data to prove its validity.
A model for low work function compounds deposition and desorption will also be presented. This model will be used to simulate the NSTAR cathode showing a very conservative estimate of the cathode life due to conservative character of the hypotheses made in the model development and due to the chosen criteria for the end of life.

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Citation

Coletti, M. and Gabriel, S.B. (2008) Hollow cathode chemical modelling At 5th International Spacecraft Propulsion Conference (Space Propulsion 2008), Greece. 05 - 08 May 2008. 11 pp.

More information

Published date: 7 May 2008
Venue - Dates: 5th International Spacecraft Propulsion Conference (Space Propulsion 2008), Greece, 2008-05-05 - 2008-05-08
Organisations: Astronautics Group

Identifiers

Local EPrints ID: 52082
URI: http://eprints.soton.ac.uk/id/eprint/52082
PURE UUID: fdf5df6e-9e5b-4a76-acf2-30ef4d8b854c

Catalogue record

Date deposited: 18 Jun 2008
Last modified: 17 Jul 2017 14:45

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Contributors

Author: M. Coletti
Author: S.B. Gabriel

University divisions


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