Alfv´en Plasma Heating in Stellarator Uragan-2M

V. E. Moiseenko; A. V. Lozin; M. M. Kozulia; Yu. K. Mironov; V. S. Romanov; V. G. Konovalov; A. N. Shapoval

doi:10.15407/ujpe62.04.0311

Alfv´en Plasma Heating in Stellarator Uragan-2M

Authors

V. E. Moiseenko Institute of Plasma Physics, National Scientific Center “Kharkiv Institute of Physics and Technology”
A. V. Lozin Institute of Plasma Physics, National Scientific Center “Kharkiv Institute of Physics and Technology”
M. M. Kozulia Institute of Plasma Physics, National Scientific Center “Kharkiv Institute of Physics and Technology”
Yu. K. Mironov Institute of Plasma Physics, National Scientific Center “Kharkiv Institute of Physics and Technology”
V. S. Romanov Institute of Plasma Physics, National Scientific Center “Kharkiv Institute of Physics and Technology”
V. G. Konovalov Institute of Plasma Physics, National Scientific Center “Kharkiv Institute of Physics and Technology”
A. N. Shapoval Institute of Plasma Physics, National Scientific Center “Kharkiv Institute of Physics and Technology”

DOI:

https://doi.org/10.15407/ujpe62.04.0311

Keywords:

radio frequency heating, stellarator, fusion-fission hybrid

Abstract

A new antenna of the crankshaft type is successfully employed in experiments on Uragan-2M. It creates and heats plasma at frequencies below the ion-cyclotron frequency. The discharge created with the antenna is “hot” during few milliseconds and then fades under strong impurity influx into plasma. The radial profiles of OV and CV optical emissions are investigated. Both are concave, especially the OV profile. This can be explained by some burnout of O4+ and
C4+ ions and its transition to O5+ and C5+ ionization states near the magnetic axis. The magnetic field optimisation and the Alfv´en heating allowed burning-out the light impurities prior to the discharge degradation. The experiments in support of the fusion-fission stellarator reactor concept are also carried out. The stellarator-mirror machine is modeled by switching off a toroidal field coil at Uragan-2M. The embedded mirror with lower magnetic field is created in this way. Plasma is successfully produced and heated in such a combined magnetic trap.

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Published

2018-12-15

How to Cite

Moiseenko, V. E., Lozin, A. V., Kozulia, M. M., Mironov, Y. K., Romanov, V. S., Konovalov, V. G., & Shapoval, A. N. (2018). Alfv´en Plasma Heating in Stellarator Uragan-2M. Ukrainian Journal of Physics, 62(4), 311. https://doi.org/10.15407/ujpe62.04.0311

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Issue

Vol. 62 No. 4 (2017)

Section

Plasmas and gases

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