학술논문
Investigations of Alfvén Modes at the Globus-M2 Tokamak Using a V-Band Multifrequency Doppler Reflectometer.
Document Type
Article
Author
Source
Subject
*REFLECTOMETER
*PLASMA flow
*DOPPLER effect
*RADIATION sources
*FUSION reactors
*TOROIDAL plasma
*MAGNETIC fields
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Language
ISSN
1063-7850
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. [ABSTRACT FROM AUTHOR]