학술논문
First Experiments on Reduction the Heat Load on the Divertor Plates of the Globus-M2 Tokamak Using Nitrogen Seeding and Their Comparison with Simulation Results.
Document Type
Article
Author
Khromov, N. A.; Bakharev, N. N.; Vekshina, E. O.; Gusev, V. K.; Dolgova, K. V.; Zhiltsov, N. S.; Kiselev, E. O.; Kurskiev, G. S.; Minaev, V. B.; Miroshnikov, I. V.; Molchanov, P. A.; Novokhatsky, A. N.; Petrov, Yu. V.; Rozhansky, V. A.; Sakharov, N. V.; Telnova, A. Yu.; Timokhin, V. M.; Tkachenko, E. E.; Tokarev, V. A.; Tukhmeneva, E. A.
Source
Subject
*TOKAMAKS
*HEATING load
*PLASMA beam injection heating
*SOWING
*NEUTRAL beams
*NITROGEN
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Language
ISSN
1063-780X
Abstract
At the compact spherical Globus-M2 tokamak, a series of experiments was conducted to study the effect of the injection of nitrogen on the discharge parameters. The experiments were carried out in discharges in deuterium in the divertor configuration, and the auxiliary heating was performed by deuterium neutral beam injection. During the nitrogen seeding, a substantial decrease in electron temperature near the divertor was recorded as well as a sharp decrease of the heat flux onto the divertor plate, while the density and temperature of the main plasma changed insignificantly. Simulations by the SOLPS-ITER showed a satisfactory agreement with the experiment. [ABSTRACT FROM AUTHOR]