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Title: Direct thrust measurement of a permanent magnet helicon double layer thruster

Direct thrust measurements of a permanent magnet helicon double layer thruster have been made using a pendulum thrust balance and a high sensitivity laser displacement sensor. At the low pressures used (0.08 Pa) an ion beam is detected downstream of the thruster exit, and a maximum thrust force of about 3 mN is measured for argon with an rf input power of about 700 W. The measured thrust is proportional to the upstream plasma density and is in good agreement with the theoretical thrust based on the maximum upstream electron pressure.
Authors:
; ; ; ;  [1] ; ;  [2] ; ; ; ;  [3]
  1. Space Plasma, Power and Propulsion Group, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200 (Australia)
  2. ASTRIUM-EADS, 6 rue Laurent Pichat, 75016 Paris (France)
  3. Surrey Space Centre, University of Surrey, Guildford GU2 7XH (United Kingdom)
Publication Date:
OSTI Identifier:
21518370
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 98; Journal Issue: 14; Other Information: DOI: 10.1063/1.3577608; (c) 2011 American Institute of Physics
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ARGON; ARGON IONS; BALANCES; ELECTRONS; ION BEAMS; LASER RADIATION; LAYERS; PERMANENT MAGNETS; PLASMA DENSITY; SENSITIVITY; SENSORS; THRUSTERS BEAMS; CHARGED PARTICLES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; EQUIPMENT; FERMIONS; FLUIDS; GASES; IONS; LEPTONS; MAGNETS; MEASURING INSTRUMENTS; NONMETALS; RADIATIONS; RARE GASES; WEIGHT INDICATORS