Laser-electrostatic hybrid acceleration for high-specific-impulse propulsion systems

Hideyuki Horisawa; Itsuro Kimura

doi:10.1117/12.674639

7 June 2006 Laser-electrostatic hybrid acceleration for high-specific-impulse propulsion systems

Hideyuki Horisawa, Itsuro Kimura

Proceedings Volume 6261, High-Power Laser Ablation VI; 62611X (2006) https://doi.org/10.1117/12.674639
Event: High-Power Laser Ablation 2006, 2006, Taos, NM, United States

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.

Citation Download Citation

Hideyuki Horisawa and Itsuro Kimura "Laser-electrostatic hybrid acceleration for high-specific-impulse propulsion systems", Proc. SPIE 6261, High-Power Laser Ablation VI, 62611X (7 June 2006); https://doi.org/10.1117/12.674639

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