RF plasma production and heating below ion-cyclotron frequencies in Uragan torsatrons

被引：39

作者：

Moiseenko, V. E. ^{[1
]}

Berezhnyj, V. L. ^{[1
]}

Bondarenko, V. N. ^{[1
]}

Burchenko, P. Ya. ^{[1
]}

Castejon, F. ^{[2
]}

Chechkin, V. V. ^{[1
]}

Chernyshenko, V. Ya. ^{[1
]}

Dreval, M. B. ^{[1
]}

Garkusha, I. E. ^{[1
]}

Glazunov, G. P. ^{[1
]}

Grigor'eva, L. I. ^{[1
]}

Hartmann, D. ^{[3
]}

Hidalgo, C. ^{[2
]}

Koch, R. ^{[4
]}

Konovalov, V. G. ^{[1
]}

Kotsubanov, V. D. ^{[1
]}

Kramskoi, Ye. D. ^{[1
]}

Kulaga, A. E. ^{[1
]}

Lozin, A. V. ^{[1
]}

Lyssoivan, A. I. ^{[4
]}

Mironov, V. K. ^{[1
]}

Mysiura, I. N. ^{[1
]}

Pavlichenko, R. O. ^{[1
]}

Pashnev, V. K. ^{[1
]}

Romanov, V. S. ^{[1
]}

Shapoval, A. N. ^{[1
]}

Skibenko, A. I. ^{[1
]}

Slavnyi, A. S. ^{[1
]}

Sorokovoy, E. L. ^{[1
]}

Stadnik, Yu. S. ^{[1
]}

Taran, V. S. ^{[1
]}

Tereshin, V. I. ^{[1
]}

Voitsenya, V. S. ^{[1
]}

机构：

[1] Inst Plasma Phys NSC KIPT, Kharkov, Ukraine

[2] Asociac Euratom CIEMAT, Lab Nacl Fus Confinamiento Magnet, Madrid 28040, Spain

[3] Max Planck Inst Plasma Phys, Greifswald, Germany

[4] Lab Plasma Phys ERM KMS, Brussels, Belgium

来源：

NUCLEAR FUSION | 2011年 / 51卷 / 08期

关键词：

ALFVEN; ABSORPTION; DEVICES;

D O I：

10.1088/0029-5515/51/8/083036

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

In the IPP-Kharkiv there are two torsatrons (stellarators) in operation, and in both of them Alfven resonance heating under high-k(parallel to) conditions is used. This method of heating is advantageous for small-size devices, since in contrast to the minority and second-harmonic heating it can be realized at lower plasma densities. A series of experiments has been performed at the Uragan-3M torsatron with an aim to investigate the features of the discharge with a three-half-turn antenna. Electron temperatures in the (T) over bar (e) = 0.2-0.5 keV range are achieved at plasma densities (n) over bar (e) approximate to (0.5-1.5) x 10(13) cm(-3). The plasma energy content has increased by a factor of 2 with respect to the plasma produced with the frame antenna. A new four-strap shielded antenna has been manufactured and installed in the Uragan-2M. A high-frequency discharge for wall conditioning is introduced in the Uragan-2M torsatron. The discharge is sustained by a specially designed small frame antenna, and efficient hydrogen dissociation is achieved. A self-consistent model has been developed for simulation of plasma production in ICRF. The model includes a set of particle and energy-balance equations for the electrons, and the boundary problem for the Maxwell equations. The first calculation results on RF plasma production in the Uragan-2M stellarator with the frame-type antenna are presented.

引用

页数：8

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