Abstract

Properties of Alfvén waves (AWs) are studied which were excited in ohmic plasma of the TUMAN-3M tokamak. By means of matching the AWs frequency calculated from electron density profile with the experimentally measured one, it was found that the waves are localized in the region of r/a < 0.5. The effect of the impurity carbon ions on AWs frequency has been studied. It has been experimentally confirmed that, in the case of fully ionized carbon ions, when mass-to-charge ratios are equal for both the dominant and impurity ions, the AWs frequency does not depend on the impurity density, and is determined by the plasma electron density and the mass of dominant ions.

Details

Title
Alfvén waves in ohmic plasma of the TUMAN-3M tokamak
Author
Abdullina, G I 1 ; Askinazi, L G 1 ; Belokurov, A A 1 ; Kornev, V A 1 ; Krikunov, S V 1 ; Lebedev, S V 1 ; Razumenko, D V 1 ; Smirnov, A I 1 ; Tukachinsky, A S 1 ; Zhubr, N A 1 

 Ioffe Institute, St. Petersburg, 194021, Russia 
Publication year
2018
Publication date
Sep 2018
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2565704103
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.