Back to Search
Start Over
Toroidal Alfvén Modes in the Plasma of the Globus-M Spherical Tokamak
- Source :
- Plasma Physics Reports. 45:723-731
- Publication Year :
- 2019
- Publisher :
- Pleiades Publishing Ltd, 2019.
-
Abstract
- 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.
- Subjects :
- 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
Subjects
Details
- ISSN :
- 15626938 and 1063780X
- Volume :
- 45
- Database :
- OpenAIRE
- Journal :
- Plasma Physics Reports
- Accession number :
- edsair.doi...........485066870c51d6a022e29c162ee4a07a