Abstract
Experiments on the implosion of both single and double argon gas puffs were carried out in the IMRI-4 (tfr = 1.1 μs and Im = 350 kA) and GIT-4 (tfr = 0.12 μs and Im = 1.7 MA) current generators. Three different sources of gas-puff preionization were used: (i) UV spark radiation, (ii) a cylindrical magnetron discharge in the crossed E × B fields, and (iii) a planar magnetron discharge in the crossed E × B fields. With the use of an optical streak camera, for all three methods of preionization, conditions are found under which the stratification of the current sheet occurs during the implosion of the gas puff. Experimental data show that the dynamics of the gas-puff implosion depends on the preionization method. The use of magnetron preionization results in suppression of the instabilities excited during the gas-puff implosion and allows the obtaining of stable plasma parameters in the final stage of implosion. It is shown that, in a single gas puff, a plasma column with an initial radius of 30 mm can be uniformly compressed to a stable plasma cylinder with a radius less than 2 mm.
| Original language | English |
|---|---|
| Pages (from-to) | 527-539 |
| Number of pages | 13 |
| Journal | Plasma Physics Reports |
| Volume | 25 |
| Issue number | 7 |
| Publication status | Published - Jul 1999 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
Cite this
Effect of preionization on the implosion dynamics of single and double argon gas puffs. / Rousskikh, A. G.; Baksht, R. B.; Labetsky, A. Yu; Shishlov, A. V.; Fedyunin, A. V.
In: Plasma Physics Reports, Vol. 25, No. 7, 07.1999, p. 527-539.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of preionization on the implosion dynamics of single and double argon gas puffs
AU - Rousskikh, A. G.
AU - Baksht, R. B.
AU - Labetsky, A. Yu
AU - Shishlov, A. V.
AU - Fedyunin, A. V.
PY - 1999/7
Y1 - 1999/7
N2 - Experiments on the implosion of both single and double argon gas puffs were carried out in the IMRI-4 (tfr = 1.1 μs and Im = 350 kA) and GIT-4 (tfr = 0.12 μs and Im = 1.7 MA) current generators. Three different sources of gas-puff preionization were used: (i) UV spark radiation, (ii) a cylindrical magnetron discharge in the crossed E × B fields, and (iii) a planar magnetron discharge in the crossed E × B fields. With the use of an optical streak camera, for all three methods of preionization, conditions are found under which the stratification of the current sheet occurs during the implosion of the gas puff. Experimental data show that the dynamics of the gas-puff implosion depends on the preionization method. The use of magnetron preionization results in suppression of the instabilities excited during the gas-puff implosion and allows the obtaining of stable plasma parameters in the final stage of implosion. It is shown that, in a single gas puff, a plasma column with an initial radius of 30 mm can be uniformly compressed to a stable plasma cylinder with a radius less than 2 mm.
AB - Experiments on the implosion of both single and double argon gas puffs were carried out in the IMRI-4 (tfr = 1.1 μs and Im = 350 kA) and GIT-4 (tfr = 0.12 μs and Im = 1.7 MA) current generators. Three different sources of gas-puff preionization were used: (i) UV spark radiation, (ii) a cylindrical magnetron discharge in the crossed E × B fields, and (iii) a planar magnetron discharge in the crossed E × B fields. With the use of an optical streak camera, for all three methods of preionization, conditions are found under which the stratification of the current sheet occurs during the implosion of the gas puff. Experimental data show that the dynamics of the gas-puff implosion depends on the preionization method. The use of magnetron preionization results in suppression of the instabilities excited during the gas-puff implosion and allows the obtaining of stable plasma parameters in the final stage of implosion. It is shown that, in a single gas puff, a plasma column with an initial radius of 30 mm can be uniformly compressed to a stable plasma cylinder with a radius less than 2 mm.
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M3 - Article
VL - 25
SP - 527
EP - 539
JO - Plasma Physics Reports
JF - Plasma Physics Reports
SN - 1063-780X
IS - 7
ER -