In-FEEP Ion Beam Neutralization with Thermionic and Field Emission Cathodes

Colleen Marrese-Reading; J. Polk; Juergen Mueller; A. Owens; Martin Tajmar; C. Spindt; R. Fink

In-FEEP Ion Beam Neutralization with Thermionic and Field Emission Cathodes

Colleen Marrese-Reading, J. Polk, Juergen Mueller , A. Owens, Martin Tajmar, C. Spindt, R. Fink

Publikation: Beitrag in Buch oder Tagungsband › Vortrag mit Beitrag in Tagungsband › Begutachtung

Abstract

Charge neutralization of an In-FEEP thruster was demonstrated with three different electron sources by zeroing the floating potential of the thruster and neutralizer system. The three cathodes used in the investigation include a mixed metal thermionic cathode, a carbon nanotube field emission cathode, and a Spindt-type Mo field emission array cathode. The field emission cathodes significantly improved the power to thrust ratio of the thruster and neutralizer system. At 10 µN, the power-to-thrust ratio of the ion and electron source FEEP system decreased by 50% when the Spindt-type cathode was used. Measured plasma potential were consistent with theoretical results obtained previously.

Originalsprache	Englisch
Titel	27th International Electric Propulsion Conference
Seiten	15
Seitenumfang	1
Publikationsstatus	Veröffentlicht - 2001
Veranstaltung	27th International Electric Propulsion Conference - Dauer: 1 Jan. 2001 → …

Konferenz

Konferenz	27th International Electric Propulsion Conference
Zeitraum	1/01/01 → …

Research Field

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@inproceedings{e3f84ce75709483e9bd718162dbed613,

title = "In-FEEP Ion Beam Neutralization with Thermionic and Field Emission Cathodes",

abstract = "Charge neutralization of an In-FEEP thruster was demonstrated with three different electron sources by zeroing the floating potential of the thruster and neutralizer system. The three cathodes used in the investigation include a mixed metal thermionic cathode, a carbon nanotube field emission cathode, and a Spindt-type Mo field emission array cathode. The field emission cathodes significantly improved the power to thrust ratio of the thruster and neutralizer system. At 10 µN, the power-to-thrust ratio of the ion and electron source FEEP system decreased by 50% when the Spindt-type cathode was used. Measured plasma potential were consistent with theoretical results obtained previously.",

author = "Colleen Marrese-Reading and J. Polk and Juergen Mueller and A. Owens and Martin Tajmar and C. Spindt and R. Fink",

year = "2001",

language = "English",

pages = "15",

booktitle = "27th International Electric Propulsion Conference",

note = "27th International Electric Propulsion Conference ; Conference date: 01-01-2001",

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TY - GEN

T1 - In-FEEP Ion Beam Neutralization with Thermionic and Field Emission Cathodes

AU - Marrese-Reading, Colleen

AU - Polk, J.

AU - Mueller , Juergen

AU - Owens, A.

AU - Tajmar, Martin

AU - Spindt, C.

AU - Fink, R.

PY - 2001

Y1 - 2001

N2 - Charge neutralization of an In-FEEP thruster was demonstrated with three different electron sources by zeroing the floating potential of the thruster and neutralizer system. The three cathodes used in the investigation include a mixed metal thermionic cathode, a carbon nanotube field emission cathode, and a Spindt-type Mo field emission array cathode. The field emission cathodes significantly improved the power to thrust ratio of the thruster and neutralizer system. At 10 µN, the power-to-thrust ratio of the ion and electron source FEEP system decreased by 50% when the Spindt-type cathode was used. Measured plasma potential were consistent with theoretical results obtained previously.

AB - Charge neutralization of an In-FEEP thruster was demonstrated with three different electron sources by zeroing the floating potential of the thruster and neutralizer system. The three cathodes used in the investigation include a mixed metal thermionic cathode, a carbon nanotube field emission cathode, and a Spindt-type Mo field emission array cathode. The field emission cathodes significantly improved the power to thrust ratio of the thruster and neutralizer system. At 10 µN, the power-to-thrust ratio of the ion and electron source FEEP system decreased by 50% when the Spindt-type cathode was used. Measured plasma potential were consistent with theoretical results obtained previously.

M3 - Conference Proceedings with Oral Presentation

SP - 15

BT - 27th International Electric Propulsion Conference

T2 - 27th International Electric Propulsion Conference

Y2 - 1 January 2001

ER -

In-FEEP Ion Beam Neutralization with Thermionic and Field Emission Cathodes

Abstract

Konferenz

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