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Title: Plasma acceleration processes in an ablative pulsed plasma thruster

Abstract

Plasma acceleration processes in an ablative pulsed plasma thruster (APPT) were investigated. APPTs are space propulsion options suitable for microspacecraft, and have recently attracted much attention because of their low electric power requirements and simple, compact propellant system. The plasma acceleration mechanism, however, has not been well understood. In the present work, emission spectroscopy, high speed photography, and magnetic field measurements are conducted inside the electrode channel of an APPT with rectangular geometry. The successive images of neutral particles and ions give us a comprehensive understanding of their behavior under electromagnetic acceleration. The magnetic field profile clarifies the location where the electromagnetic force takes effect. As a result, it is shown that high density, ablated neutral gas stays near the propellant surface, and only a fraction of the neutrals is converted into plasma and electromagnetically accelerated, leaving the residual neutrals behind.

Authors:
; ; ;  [1];  [2];  [2]
  1. Department of Aeronautics and Astronautics, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
20974898
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 3; Other Information: DOI: 10.1063/1.2710454; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ELECTRIC POWER; ELECTROMAGNETIC RADIATION; EMISSION SPECTROSCOPY; IONS; MAGNETIC FIELDS; NEUTRAL PARTICLES; PLASMA; PLASMA ACCELERATION; PLASMA DENSITY; PLASMA DIAGNOSTICS; PLASMA GUNS; PROPULSION; THRUSTERS

Citation Formats

Koizumi, Hiroyuki, Noji, Ryosuke, Komurasaki, Kimiya, Arakawa, Yoshihiro, Department of Advanced Energy, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8561, and Department of Aeronautics and Astronautics, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656. Plasma acceleration processes in an ablative pulsed plasma thruster. United States: N. p., 2007. Web. doi:10.1063/1.2710454.
Koizumi, Hiroyuki, Noji, Ryosuke, Komurasaki, Kimiya, Arakawa, Yoshihiro, Department of Advanced Energy, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8561, & Department of Aeronautics and Astronautics, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656. Plasma acceleration processes in an ablative pulsed plasma thruster. United States. doi:10.1063/1.2710454.
Koizumi, Hiroyuki, Noji, Ryosuke, Komurasaki, Kimiya, Arakawa, Yoshihiro, Department of Advanced Energy, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8561, and Department of Aeronautics and Astronautics, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656. Thu . "Plasma acceleration processes in an ablative pulsed plasma thruster". United States. doi:10.1063/1.2710454.
@article{osti_20974898,
title = {Plasma acceleration processes in an ablative pulsed plasma thruster},
author = {Koizumi, Hiroyuki and Noji, Ryosuke and Komurasaki, Kimiya and Arakawa, Yoshihiro and Department of Advanced Energy, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8561 and Department of Aeronautics and Astronautics, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656},
abstractNote = {Plasma acceleration processes in an ablative pulsed plasma thruster (APPT) were investigated. APPTs are space propulsion options suitable for microspacecraft, and have recently attracted much attention because of their low electric power requirements and simple, compact propellant system. The plasma acceleration mechanism, however, has not been well understood. In the present work, emission spectroscopy, high speed photography, and magnetic field measurements are conducted inside the electrode channel of an APPT with rectangular geometry. The successive images of neutral particles and ions give us a comprehensive understanding of their behavior under electromagnetic acceleration. The magnetic field profile clarifies the location where the electromagnetic force takes effect. As a result, it is shown that high density, ablated neutral gas stays near the propellant surface, and only a fraction of the neutrals is converted into plasma and electromagnetically accelerated, leaving the residual neutrals behind.},
doi = {10.1063/1.2710454},
journal = {Physics of Plasmas},
number = 3,
volume = 14,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}