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Thermal effects on the dynamics of a two-gas gas-puff Ζ–θ pinch

Published online by Cambridge University Press:  13 March 2009

M. H. Nasim ,
M. Salahuddin  and
Arshad M. Mirza
M. H. Nasim
Affiliation:
Pakistan Atomic energy Commission, P.O. Box 1114, Islamabad 44000, Pakistan
M. Salahuddin
Affiliation:
Pakistan Atomic energy Commission, P.O. Box 1114, Islamabad 44000, Pakistan
Arshad M. Mirza
Affiliation:
Pakistan Atomic energy Commission, P.O. Box 1114, Islamabad 44000, Pakistan
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Abstract

The imploding plasma column of a gas-puff Ζ-pinch has been used to compress the target-gas-embedded axial magnetic field in the presence of plasma pressure. The dynamics of a two-gas gas-puff Ζ-θ pinch is studied with different forms of applied current profiles. We find that the inclusion of a kinetic pressure term introduces the usual β–term, which delays and reduces the maximum compression. On the other hand, for fixed β, compression at an earlier time can be achieved for a large density ratio of the test to the driver gas at the interface position. For the pressure-free case, our earlier results are completely recovered.

Type
Research Article
Information
Journal of Plasma Physics , Volume 53 , Issue 2 , April 1995 , pp. 135 - 143
Copyright
Copyright © Cambridge University Press 1995

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