Indium FEEP Endurance Test: Preliminary Results

Angelo Genovese; Martin Tajmar; Wolfgang Steiger; Friedrich Rüdenauer

Indium FEEP Endurance Test: Preliminary Results

Angelo Genovese
, Martin Tajmar
, Wolfgang Steiger
, Friedrich Rüdenauer

Research output: Chapter in Book or Conference Proceedings › Conference Proceedings with Oral Presentation › peer-review

Abstract

Three endurance tests have been carried out in order to investigate the long-term behavior of Indium FEEP microthrusters. The thruster tested is based on the Indium Liquid Metal Ion Source (LMIS), space-proven in a number of scientific satellites up to a thrust of 5 µN, developed by the Austrian Research Centers (ARC). The first endurance test was performed at a thrust of about 17 µN consistent with requirements for missions such as SMART2, LISA, DARWIN and TPF. It lasted 820 hours at a mean mass efficiency of 45%, an extractor current of less than 1 µA and no spraks. Two more tests were run using profiles from 0-35 µN (plus calibration periods up to 60 µN) and 0-25 µN lasting for 460 and 470 hours respectively. In addition, a lifetime prediction model was developed and experimentally verified to estimate the behavior of microdroplet deposition on the extractor electrode.

Original language	English
Title of host publication	27th International Electric Propulsion Conference
Pages	16
Number of pages	1
Publication status	Published - 2001
Event	27th International Electric Propulsion Conference - Duration: 1 Jan 2001 → …

Conference

Conference	27th International Electric Propulsion Conference
Period	1/01/01 → …

Research Field

Not defined

Cite this

@inproceedings{fb6c9ec619974e8594066aba162990b8,

title = "Indium FEEP Endurance Test: Preliminary Results",

abstract = "Three endurance tests have been carried out in order to investigate the long-term behavior of Indium FEEP microthrusters. The thruster tested is based on the Indium Liquid Metal Ion Source (LMIS), space-proven in a number of scientific satellites up to a thrust of 5 µN, developed by the Austrian Research Centers (ARC). The first endurance test was performed at a thrust of about 17 µN consistent with requirements for missions such as SMART2, LISA, DARWIN and TPF. It lasted 820 hours at a mean mass efficiency of 45\%, an extractor current of less than 1 µA and no spraks. Two more tests were run using profiles from 0-35 µN (plus calibration periods up to 60 µN) and 0-25 µN lasting for 460 and 470 hours respectively. In addition, a lifetime prediction model was developed and experimentally verified to estimate the behavior of microdroplet deposition on the extractor electrode.",

author = "Angelo Genovese and Martin Tajmar and Wolfgang Steiger and Friedrich R{\"u}denauer",

year = "2001",

language = "English",

pages = "16",

booktitle = "27th International Electric Propulsion Conference",

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

}

TY - GEN

T1 - Indium FEEP Endurance Test: Preliminary Results

AU - Genovese, Angelo

AU - Tajmar, Martin

AU - Steiger, Wolfgang

AU - Rüdenauer, Friedrich

PY - 2001

Y1 - 2001

N2 - Three endurance tests have been carried out in order to investigate the long-term behavior of Indium FEEP microthrusters. The thruster tested is based on the Indium Liquid Metal Ion Source (LMIS), space-proven in a number of scientific satellites up to a thrust of 5 µN, developed by the Austrian Research Centers (ARC). The first endurance test was performed at a thrust of about 17 µN consistent with requirements for missions such as SMART2, LISA, DARWIN and TPF. It lasted 820 hours at a mean mass efficiency of 45%, an extractor current of less than 1 µA and no spraks. Two more tests were run using profiles from 0-35 µN (plus calibration periods up to 60 µN) and 0-25 µN lasting for 460 and 470 hours respectively. In addition, a lifetime prediction model was developed and experimentally verified to estimate the behavior of microdroplet deposition on the extractor electrode.

AB - Three endurance tests have been carried out in order to investigate the long-term behavior of Indium FEEP microthrusters. The thruster tested is based on the Indium Liquid Metal Ion Source (LMIS), space-proven in a number of scientific satellites up to a thrust of 5 µN, developed by the Austrian Research Centers (ARC). The first endurance test was performed at a thrust of about 17 µN consistent with requirements for missions such as SMART2, LISA, DARWIN and TPF. It lasted 820 hours at a mean mass efficiency of 45%, an extractor current of less than 1 µA and no spraks. Two more tests were run using profiles from 0-35 µN (plus calibration periods up to 60 µN) and 0-25 µN lasting for 460 and 470 hours respectively. In addition, a lifetime prediction model was developed and experimentally verified to estimate the behavior of microdroplet deposition on the extractor electrode.

M3 - Conference Proceedings with Oral Presentation

SP - 16

BT - 27th International Electric Propulsion Conference

T2 - 27th International Electric Propulsion Conference

Y2 - 1 January 2001

ER -

Indium FEEP Endurance Test: Preliminary Results

Abstract

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