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Proceedings Paper

Laser-electrostatic hybrid acceleration for high-specific-impulse propulsion systems
Author(s): Hideyuki Horisawa; Itsuro Kimura
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Paper Abstract

A fundamental study on laser-electrostatic hybrid acceleration thruster was conducted, in which laser-induced plasmas were induced through laser beam irradiation on to a solid target and accelerated by an electrostatic field of an acceleration electrode. Also, a fundamental relativistic consideration of thrust performance for the high-specific-impulse thrusters was conducted. For thrust measurements, a calibrated torsion-balance type thrust-stand was developed and utilized. A time-of-flight measurement with a Faraday cup was also conducted for ion current and velocity measurements. It was shown that an acceleration electrode with positive potential was more effective than that with negative potential for positive-ion acceleration in the laser induced plasma, in which ions were induced with the Coulomb explosion.

Paper Details

Date Published: 7 June 2006
PDF: 12 pages
Proc. SPIE 6261, High-Power Laser Ablation VI, 62611X (7 June 2006); doi: 10.1117/12.674639
Show Author Affiliations
Hideyuki Horisawa, Tokai Univ. (Japan)
Itsuro Kimura, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 6261:
High-Power Laser Ablation VI
Claude R. Phipps, Editor(s)

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