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Experimental results of a two-stage plasma armature railgun

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3 Author(s)
Yamori, A. ; Inst. of Space & Astronaut. Sci., Kanagawa, Japan ; Kohno, M. ; Kawashima, N.

We have been developing a two-stage plasma armature railgun as the first step to produce a multistage railgun system, which is considered as a promising tool to achieve hypervelocities. For successful operation of the two-stage railgun, three technical problems are addressed: the insulation between the two segmented rails, the formation of, and correct timing of, the ignition of the plasma armature in the second-stage railgun. Of these problems, the correct timing of the ignition of the plasma armature of the second-stage railgun will most significantly affect the performance of the two-stage railgun. A large increase in the projectile velocity has been obtained in the second-stage railgun by solving these technical problems, from 1.7 to 5.8 km/s.

Published in:

Magnetics, IEEE Transactions on  (Volume:39 ,  Issue: 1 )

Date of Publication:

Jan. 2003

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