Direct measurement of the impulse in a magnetic thrust chamber system for laser fusion rocket

Akihiro Maeno, Naoji Yamamoto, Hideki Nakashima, Shinsuke Fujioka, Tomoyuki Johzaki, Yoshitaka Mori, Atsushi Sunahara

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

An experiment is conducted to measure an impulse for demonstrating a magnetic thrust chamber system for laser fusion rocket. The impulse is produced by the interaction between plasma and magnetic field. In the experiment, the system consists of plasma and neodymium permanent magnets. The plasma is created by a single-beam laser aiming at a polystyrene spherical target. The impulse is 1.5 to 2.2 μNs by means of a pendulum thrust stand, when the laser energy is 0.7 J. Without magnetic field, the measured impulse is found to be zero. These results indicate that the system for generating impulse is working.

Original languageEnglish
Article number071501
JournalApplied Physics Letters
Volume99
Issue number7
DOIs
Publication statusPublished - Aug 15 2011

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thrust chambers
laser fusion
rockets
impulses
pendulums
neodymium
magnetic fields
permanent magnets
thrust
polystyrene
laser beams
lasers

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Direct measurement of the impulse in a magnetic thrust chamber system for laser fusion rocket. / Maeno, Akihiro; Yamamoto, Naoji; Nakashima, Hideki; Fujioka, Shinsuke; Johzaki, Tomoyuki; Mori, Yoshitaka; Sunahara, Atsushi.

In: Applied Physics Letters, Vol. 99, No. 7, 071501, 15.08.2011.

Research output: Contribution to journalArticle

Maeno, Akihiro ; Yamamoto, Naoji ; Nakashima, Hideki ; Fujioka, Shinsuke ; Johzaki, Tomoyuki ; Mori, Yoshitaka ; Sunahara, Atsushi. / Direct measurement of the impulse in a magnetic thrust chamber system for laser fusion rocket. In: Applied Physics Letters. 2011 ; Vol. 99, No. 7.
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