We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Toroidal Alfvén Modes in the Plasma of the Globus-M Spherical Tokamak.
- Authors
Petrov, Yu. V.; Bakharev, N. N.; Bulanin, V. V.; Gusev, V. K.; Kurskiev, G. S.; Martynov, A. A.; Medvedev, S. Yu.; Minaev, V. B.; Patrov, M. I.; Petrov, A. V.; Sakharov, N. V.; Shchegolev, P. B.; Telnova, A. Yu.; Tolstyakov, S. Yu.; Yashin, A. Yu.
- Abstract
Results of experimental studies of toroidal Alfvén 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 Alfvén 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.
- Subjects
PLASMA beam injection heating; PLASMA instabilities; PLASMA currents; PLASMA heating; DEUTERIUM plasma; TOROIDAL plasma; MAGNETIC fields
- Publication
Plasma Physics Reports, 2019, Vol 45, Issue 8, p723
- ISSN
1063-780X
- Publication type
Article
- DOI
10.1134/S1063780X19080075