NIFS-735

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Author(s):

T. Yabe, C. Phipps, K. Aoki, M. Yamaguchi, Y. Ogata, M. Shiho, G. Inoue, M. Onda, K. Horioka, I Kajiwara, S. Maehara and K. Yoshida

Title:

Laser-Driven Vehicles - from Inner-Space to Outer -Space -

Date of publication:

June 2002

Key words:

Laser Propulsion, Airplane, Micro-ship, Human body, X-ray laser, Robot

Abstract:

Laser supported propulsion of a micro-airplane with water-covered ablator is demonstrated. The repetitive use of overlay structure is experimentally demonstrated with specially-designed water supply. The various transparent overlay is investigated by the CIP-based hydrodynamic code and experiments by pendulum and semi-conductor load cell. The momentum coupling efficiency of 5000 N¡¦sec/MJ has been achieved by ORION experiments that agree with the simulation code. With the maximum efficiency - 10^5 N¡¦sec/MJ predicted by the simulation, 30 pulses of MJ laser can give the sound speed to 10 tons airplane. The concept can also be used for driving a micro-ship inside human body and a robot under the accidental circumstance of nuclear power reactor in which large amount of neutron source makes electronic device useless.

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