Abstract
A double gas puff was used to study the mitigation of the magneto-Rayleigh-Taylor (RT) instabilities for long implosion times (up to 250 ns). The experiments have been performed on the inductive storage GIT-4 (1.7 MA, 120 ns) generator. Current division between the outer and inner shells was controlled using magnetron-discharge preionization. The implosion of the a double gas puff, with the improved preionization, results in the formation of a uniform plasma column. The results of two-dimensional (2-D) radiation-magnetohydrodynamic simulations support the experimental results: a double gas puff implosion mitigates the RT instabilities, leading to the development of only small-amplitude waves. The 2-D simulation allowed us to explain the halo effect seen in the experiments: the use of the low hybrid conductivity in the calculation demonstrated the existence of the high density plasma core surrounded by a low density plasma halo.
| Original language | English |
|---|---|
| Pages (from-to) | 1259-1266 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Plasma Science |
| Volume | 26 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Dec 1998 |
| Externally published | Yes |
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Keywords
- Plasma radiation sources
- Plasma stability
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Condensed Matter Physics
Cite this
On stabilization of gas puff implosion : experiment and simulation. / Baksht, Rina B.; Fedunin, Anatoliy V.; Labetsky, Aleksey Yu; Russkikh, Alexander G.; Shishlov, Alexander V.; Diyankov, Oleg V.; Glazyrin, Igor V.; Koshelev, Serge V.
In: IEEE Transactions on Plasma Science, Vol. 26, No. 4, 01.12.1998, p. 1259-1266.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - On stabilization of gas puff implosion
T2 - experiment and simulation
AU - Baksht, Rina B.
AU - Fedunin, Anatoliy V.
AU - Labetsky, Aleksey Yu
AU - Russkikh, Alexander G.
AU - Shishlov, Alexander V.
AU - Diyankov, Oleg V.
AU - Glazyrin, Igor V.
AU - Koshelev, Serge V.
PY - 1998/12/1
Y1 - 1998/12/1
N2 - A double gas puff was used to study the mitigation of the magneto-Rayleigh-Taylor (RT) instabilities for long implosion times (up to 250 ns). The experiments have been performed on the inductive storage GIT-4 (1.7 MA, 120 ns) generator. Current division between the outer and inner shells was controlled using magnetron-discharge preionization. The implosion of the a double gas puff, with the improved preionization, results in the formation of a uniform plasma column. The results of two-dimensional (2-D) radiation-magnetohydrodynamic simulations support the experimental results: a double gas puff implosion mitigates the RT instabilities, leading to the development of only small-amplitude waves. The 2-D simulation allowed us to explain the halo effect seen in the experiments: the use of the low hybrid conductivity in the calculation demonstrated the existence of the high density plasma core surrounded by a low density plasma halo.
AB - A double gas puff was used to study the mitigation of the magneto-Rayleigh-Taylor (RT) instabilities for long implosion times (up to 250 ns). The experiments have been performed on the inductive storage GIT-4 (1.7 MA, 120 ns) generator. Current division between the outer and inner shells was controlled using magnetron-discharge preionization. The implosion of the a double gas puff, with the improved preionization, results in the formation of a uniform plasma column. The results of two-dimensional (2-D) radiation-magnetohydrodynamic simulations support the experimental results: a double gas puff implosion mitigates the RT instabilities, leading to the development of only small-amplitude waves. The 2-D simulation allowed us to explain the halo effect seen in the experiments: the use of the low hybrid conductivity in the calculation demonstrated the existence of the high density plasma core surrounded by a low density plasma halo.
KW - Plasma radiation sources
KW - Plasma stability
UR - http://www.scopus.com/inward/record.url?scp=0032141503&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032141503&partnerID=8YFLogxK
U2 - 10.1109/27.725158
DO - 10.1109/27.725158
M3 - Article
VL - 26
SP - 1259
EP - 1266
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
SN - 0093-3813
IS - 4
ER -