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- Title
Investigations of Alfvén Modes at the Globus-M2 Tokamak Using a V-Band Multifrequency Doppler Reflectometer.
- Authors
Bulanin, V. V.; Balachenkov, I. M.; Varfolomeev, V. I.; Gusev, V. K.; Kurskiev, G. S.; Minaev, V. B.; Patrov, M. I.; Petrov, A. V.; Petrov, Yu. V.; Ponomarenko, A. M.; Telnova, A. Yu.; Shchegolev, P. B.; Yashin, A. Yu.
- Abstract
We present new information on the development of Alfvén modes on the Globus-M2 spherical tokamak. Data have been obtained using a V-band Doppler reflectometer with probing radiation frequencies from 50 to 75 GHz. Аs a multifrequency source of probing radiation, a microwave harmonic synthesizer has been used. As a result of using the new reflectometer, the toroidal Alfvén mode localization in a magnetic field of 0.5 T has been obtained. The spectral components of the Alfvén mode with Doppler frequency shifts caused by toroidal plasma rotation have been registered. In the central regions of the discharge, so-called "Alfvén cascades" have been investigated.
- Subjects
REFLECTOMETER; PLASMA flow; DOPPLER effect; RADIATION sources; FUSION reactors; TOROIDAL plasma; MAGNETIC fields
- Publication
Technical Physics Letters, 2021, Vol 47, Issue 2, p197
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/S1063785021020206