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Proceedings Paper

Numerical and experimental studies of laser propulsion toward micro-airplane
Author(s): Keiichi Aoki; Takashi Yabe; Ryo Nakagawa; Masashi Yamaguchi; Choijil Baasandash
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Paper Abstract

Laser supported propulsion of multi-layered target is investigated by the CIP-CUP (Cubic-Interpolated Pseudoparticle Combined Unified Procedure) based hydrodynamic code PARCIPHAL and experiments by pendulum and semi-conductor load cell. The momentum coupling efficiency of 5000 [N.s/MJ] has been achieved by ORION experiments that agree with the simulation code. Time evolution of ablation process and subsequent acceleration is investigated by load cell experiment and simulation. The double-layered target that consists of transparent tamper (Exotic Target) shows higher acceleration rate even with small laser. A propulsion concept is proposed to drive and control a micro-airplane that can be used for observation of climate and volcanic eruption where no one can access directly. In this concept, it is necessary to irradiate a micro-airplane repetitively. Therefore the double-layered target attached a liquid overlay is useful because the device that supplies the surface with liquid can be simple and light. In this paper, the simple device using water as an overlay is presented. Furthermore, from the results of experiments and simulation, it is clear that the mechanism of ablation process differs between the target attached a water layer and the target attached a solid layer.

Paper Details

Date Published: 13 September 2002
PDF: 11 pages
Proc. SPIE 4760, High-Power Laser Ablation IV, (13 September 2002); doi: 10.1117/12.482047
Show Author Affiliations
Keiichi Aoki, Tokyo Institute of Technology (Japan)
Takashi Yabe, Tokyo Institute of Technology (Japan)
Ryo Nakagawa, Tokyo Institute of Technology (Japan)
Masashi Yamaguchi, Tokyo Institute of Technology (Japan)
Choijil Baasandash, Tokyo Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 4760:
High-Power Laser Ablation IV
Claude R. Phipps, Editor(s)

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