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Title: Injection of a High-Density Plasma into the Globus-M Spherical Tokamak

Abstract

A new type of plasma source with titanium hydride granules used as a hydrogen accumulator was employed to inject a dense, highly ionized plasma jet into the Globus-M spherical tokamak. The experiments have shown that the jet penetrates through the tokamak magnetic field and increases the plasma density, without disturbing the stability of the plasma column. It is found that, when the plasma jet is injected before a discharge, more favorable conditions (as compared to those during gas puffing) are created for the current ramp-up at a lower MHD activity in the plasma column. Plasma injection at the instant of maximum current results in a more rapid growth in the plasma density in comparison to gas puffing.

Authors:
; ; ; ; ; ;  [1]
  1. Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021 (Russian Federation)
Publication Date:
OSTI Identifier:
20718259
Resource Type:
Journal Article
Journal Name:
Plasma Physics Reports
Additional Journal Information:
Journal Volume: 31; Journal Issue: 9; Other Information: Translated from Fizika Plazmy, ISSN 0367-2921, 31, 783-791 (No. 9, 2005); DOI: 10.1134/1.2048831; (c) 2005 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); TN:; Journal ID: ISSN 1063-780X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPARATIVE EVALUATIONS; ELECTRIC CURRENTS; HYDROGEN; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; PLASMA; PLASMA CONFINEMENT; PLASMA DENSITY; PLASMA INSTABILITY; PLASMA JETS; SPHERICAL CONFIGURATION; TITANIUM HYDRIDES; TOKAMAK DEVICES

Citation Formats

Abramova, K.B., Voronin, A.V., Gusev, V.K., Mukhin, E.E., Petrov, Yu.V., Sakharov, N.V., and Chernyshev, F.V. Injection of a High-Density Plasma into the Globus-M Spherical Tokamak. United States: N. p., 2005. Web. doi:10.1134/1.2048831.
Abramova, K.B., Voronin, A.V., Gusev, V.K., Mukhin, E.E., Petrov, Yu.V., Sakharov, N.V., & Chernyshev, F.V. Injection of a High-Density Plasma into the Globus-M Spherical Tokamak. United States. doi:10.1134/1.2048831.
Abramova, K.B., Voronin, A.V., Gusev, V.K., Mukhin, E.E., Petrov, Yu.V., Sakharov, N.V., and Chernyshev, F.V. Thu . "Injection of a High-Density Plasma into the Globus-M Spherical Tokamak". United States. doi:10.1134/1.2048831.
@article{osti_20718259,
title = {Injection of a High-Density Plasma into the Globus-M Spherical Tokamak},
author = {Abramova, K.B. and Voronin, A.V. and Gusev, V.K. and Mukhin, E.E. and Petrov, Yu.V. and Sakharov, N.V. and Chernyshev, F.V.},
abstractNote = {A new type of plasma source with titanium hydride granules used as a hydrogen accumulator was employed to inject a dense, highly ionized plasma jet into the Globus-M spherical tokamak. The experiments have shown that the jet penetrates through the tokamak magnetic field and increases the plasma density, without disturbing the stability of the plasma column. It is found that, when the plasma jet is injected before a discharge, more favorable conditions (as compared to those during gas puffing) are created for the current ramp-up at a lower MHD activity in the plasma column. Plasma injection at the instant of maximum current results in a more rapid growth in the plasma density in comparison to gas puffing.},
doi = {10.1134/1.2048831},
journal = {Plasma Physics Reports},
issn = {1063-780X},
number = 9,
volume = 31,
place = {United States},
year = {2005},
month = {9}
}