Toroidal Alfvén Modes in the Plasma of the Globus-M Spherical Tokamak
| Autor: | A. V. Petrov, P. B. Shchegolev, V. V. Bulanin, A. A. Martynov, V. K. Gusev, V. B. Minaev, S. Yu. Medvedev, G. S. Kurskiev, M. I. Patrov, A. Yu. Yashin, N. N. Bakharev, S. Yu. Tolstyakov, A. Yu. Telnova, Yu. V. Petrov, N. V. Sakharov |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Physics Toroid Physics and Astronomy (miscellaneous) Plasma parameters Plasma Spherical tokamak Condensed Matter Physics 01 natural sciences Deuterium plasma 010305 fluids & plasmas Magnetic field symbols.namesake Deuterium 0103 physical sciences symbols Atomic physics Doppler effect |
| Zdroj: | Plasma Physics Reports. 45:723-731 |
| ISSN: | 1562-6938 1063-780X |
| Popis: | Results of experimental studies of toroidal Alfven eigenmodes (TAEs) in the Globus-M spherical tokamak (R = 36 cm, a = 24 cm) are reported. The experiments were carried out in a wide range of plasma parameters at a magnetic field of up to 0.5 T and plasma current of up to 250 kA. Auxiliary plasma heating was performed by tangential injection of a deuterium beam with a power of Pb= 0.75 MW and particle energy of Eb = 28 keV into deuterium plasma. The experiments have shown that the TAE-induced loss of fast particles decreases with increasing plasma current and magnetic field. Using multifrequency Doppler backscattering diagnostics, it is established that the TAEs are localized at the plasma periphery. Results of simulations of the Alfven continuum and TAE structure by means of the modified KINX and CAXE codes agree satisfactory with the experimental data on the TAE frequencies and localization. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |