GDT Device. Recent Results and Future Plans for GDT Upgrade

Ivanov, A. A.; Abdrashitov, G. F.; Anikeev, A. V.; Bagryansky, P. A.; Deichuli, P. P.; Karpushov, A.; Korepanov, S.; Lizunov, A. A.; Maximov, V. V.; Murakhtin, S. V.; Smirnov, A. Yu.; Zouev, A.; Noack, K.; Otto, G.

doi:10.13182/fst03-a11963562

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…In conclusion, we note that experimental verification of the super-Alfvénic detachment concept in laboratory appears to be feasible. For example, the gas-dynamic trap, 13 an axisymmetric mirror machine with large mirror ratio, is particularly suitable for such an experiment.…”

Section: Summary and Discussionmentioning

confidence: 99%

Magnetohydrodynamic scenario of plasma detachment in a magnetic nozzle

Arefiev¹,

Breǐzman²

2005

Physics of Plasmas

123

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Some plasma propulsion concepts rely on a strong magnetic field to guide the plasma flow through the thruster nozzle. The question then arises of how the magnetically confined plasma can detach from the spacecraft. This work presents a magnetohydrodynamic ͑MHD͒ detachment scenario in which the plasma flow stretches the magnetic field lines to infinity. Detachment takes place after the energy density of the expanding magnetic field drops below the kinetic energy density of the plasma. As plasma flows along the magnetic field lines, the originally sub-Alfvénic flow becomes super-Alfvénic; this transition is similar to what occurs in the solar wind. In order to describe the detachment quantitatively, the ideal MHD equations have been solved for a cold plasma flow in a slowly diverging nozzle. The solution exhibits a well-behaved transition from sub-to super-Alfvénic flow inside the nozzle and a rarefaction wave at the edge of the outgoing flow. It is shown that efficient detachment is feasible if the nozzle is sufficiently long.

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Section: Summary and Discussionmentioning

confidence: 99%

Magnetohydrodynamic scenario of plasma detachment in a magnetic nozzle

Arefiev¹,

Breǐzman²

2005

Physics of Plasmas

123

View full text Add to dashboard Cite

show abstract

“…The starting point for the K-S concept is a theoretical analysis by Ryutov [2]. He showed that plasma contained in an axisymmetric mirror cell can be MHD-stabilized by the presence of effluent plasma on the expanding field lines outside the mirrors: This stabilization was conclusively demonstrated in the Gas Dynamic Trap (GDT) experiment at the Budker Institute in Novosibirsk, Russia, up to mirror-cell plasma beta values of 40% [3].…”

Section: Introductionmentioning

confidence: 99%