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Experimental study of an argon-hydrogen Z pinch plasma radiation source

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10 Author(s)
A. V. Shishlov ; Inst. of High-Current Electron., Acad. of Sci., Tomsk, Russia ; R. B. Baksht ; A. Yu. Labetsky ; V. I. Oreshkin
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Experiments with Ar-H2 double gas puffs have been conducted on the GIT-12 generator at the current level of 2.1-2.4 MA and 250-350 ns implosion times. The argon-hydrogen mixture was used as a working medium in the outer shell of a double gas puff. The goal of the experiments was to verify whether the use of the argon-hydrogen mixture in the outer shell can improve the stability of a double gas puff implosion and provide increased argon K-shell radiation yields. The experiments showed that hydrogen admixture results in the change of implosion dynamics: decreased implosion velocities and compression ratios. The experimental data does not allow a conclusion that the use of an Ar-H2 mixture in the outer shell of a double gas puff significantly improves the implosion stability. An increase in the hydrogen percentage in the outer shell leads to a decrease in plasma density and temperature, and as a result, reduced K-shell radiation yields and powers.

Published in:

IEEE Transactions on Plasma Science  (Volume:30 ,  Issue: 2 )