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Oct 13 – 18, 2014
Hotel Park Inn Pribaltiyskaya
Europe/Moscow timezone

Plasma Confinement in the Trimix-3M Multipole Galatea Trap

Oct 15, 2014, 8:30 AM
4h
Green 8-9 (Hotel Park Inn Pribaltiyskaya)

Green 8-9

Hotel Park Inn Pribaltiyskaya

Saint Petersburg, Russian Federation
Poster EXC - Magnetic Confinement Experiments: Confinement Poster 3

Speaker

Dr Andrey Bishaev (Moscow State Technical University of Radioengineering, Electronics and Automation, Moscow, Russia)

Description

Quasi-stationary plasma confinement with a high β value was implemented in the Trimix-3M multipole magnetic trap. In the trap, magnetic surfaces of complex cross-section delimit a closed toroidal region with zero magnetic field at its center. The lifetime of the plasma in the trap is ~1 ms and the average value of β is ~0.35. The Rogowski loop is used to measure the value of the toroidal current arising after the injection of a plasmoid through the magnetic crust of the Trimix-3M magnetic multipole trap. This current is due to plasma diamagnetism. A relation is established between the value of the diamagnetic current and the maximal plasma pressure realized on the separatrix of the magnetic field of the trap. It is thus shown that magnetic measurements in the multipole trap, for a known concentration value, allow us to determine the plasma temperature in the trap and the energy confinement time. Injection of a plasmoid is implemented through the magnetic crust of the trap. Both theory and experiment have shown that the depth of penetration of the plasmoid into a transverse magnetic field is proportional to the plasmoid energy and is inversely proportional to the magnetic pressure and the cross-section area of the plasmoid. This fact can be used to optimize the process of trapping a plasmoid.
Paper Number PD/P3-2
Country or International Organisation Russian Federation

Primary author

Dr Andrey Bishaev (Moscow State Technical University of Radioengineering, Electronics and Automation, Moscow, Russia)

Co-authors

Mr Aleksey Desytskov (1Moscow State Technica University of Radioengineering, Electronics and Automation, Moscow, Russia) Mr Boris Kopchenkov (1Moscow State Technica University of Radioengineering, Electronics and Automation, Moscow, Russia) Dr Gleb Bugrov (Moscow State Technical University of Radioengineering, Electronics and Automation, Moscow, Russia) Dr Marina Kozintseva (Moscow State Technical University of Radioengineering, Electronics and Automation, Moscow, Russia) Mr Michail Shapovalov (Moscow State Technical University of Radioengineering, Electronics and Automation, Moscow, Russia) Dr Mihail Gavrikov (Keldysh Institute of Applied Mathematics, Мoscow ,Russia) Mrs Tatiana Kolesnikova (Moscow State Technical University of Radioengineering, Electronics and Automation, Moscow, Russia) Dr Vyacheslav Savel'ev (Keldysh Institute of Applied Mathematics, Мoscow ,Russia)

Presentation materials

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