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Альфвенiвський нагрiв плазми в стелараторi Ураган-2М

Альфвенiвський нагрiв плазми в стелараторi Ураган-2М

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. Th...

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Main Authors: Moiseenko, V. E., Lozin, A. V., Kozulia, M. M., Mironov, Yu. K., Romanov, V. S., Konovalov, V. G., Shapoval, A. N.
Format: Article
Language:English
Published: Publishing house "Academperiodika" 2018
Subjects:
radio frequency heating
stellarator
fusion-fission hybrid
-
Online Access:https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018690
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spelling ujp2-article-20186902019-04-23T07:01:49Z Alfv´en Plasma Heating in Stellarator Uragan-2M Альфвенiвський нагрiв плазми в стелараторi Ураган-2М Moiseenko, V. E. Lozin, A. V. Kozulia, M. M. Mironov, Yu. K. Romanov, V. S. Konovalov, V. G. Shapoval, A. N. radio frequency heating stellarator fusion-fission hybrid - 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+ andC4+ 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. Нова антена колiнвального типу успiшно застосовується в експериментах на Ураганi-2М. Вона створює та нагрiває плазму на частотах, нижчих за iонно-циклотронну частоту. Антена створює “гарячий” розряд лише на декiлька мiлiсекунд, який згасає разом з сильним потоком домiшок у плазму. Дослiджено радiальнi профiлi оптичного випромiнювання OV та CV. Обидва профiлi впалi, особливо профiль OV. Це може бути пояснено вигорянням iонiв O4+ i C4+ та їхнiм переходом до станiв iонiзацiї O5+ i C5+ поблизу магнiтної осi. Оптимiзацiя магнiтного поля й альфвенiвський нагрiв дозволили досягти вигоряння легких домiшок до початку деградацiї розряду. Було проведено експерименти щодо пiдтримки концепцiї гiбридного реактора на основi стеларатора. Стелараторно-пробкотронний гiбрид моделюється вимкненням однiєї котушки тороїдального поля Урагана-2М. Таким чином створюється вбудований пробкотрон зi зниженим магнiтним полем. Плазма успiшно створюється та утримується в такiй комбiнованiй пастцi. Publishing house "Academperiodika" 2018-12-15 Article Article Peer-reviewed Рецензована стаття application/pdf https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018690 10.15407/ujpe62.04.0311 Ukrainian Journal of Physics; Vol. 62 No. 4 (2017); 311 Український фізичний журнал; Том 62 № 4 (2017); 311 2071-0194 2071-0186 10.15407/ujpe62.04 en https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018690/816 Copyright (c) 2018 Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine
institution Ukrainian Journal of Physics
collection OJS
language English
topic radio frequency heating
stellarator
fusion-fission hybrid
-
spellingShingle radio frequency heating
stellarator
fusion-fission hybrid
-
Moiseenko, V. E.
Lozin, A. V.
Kozulia, M. M.
Mironov, Yu. K.
Romanov, V. S.
Konovalov, V. G.
Shapoval, A. N.
Альфвенiвський нагрiв плазми в стелараторi Ураган-2М
topic_facet radio frequency heating
stellarator
fusion-fission hybrid
-
format Article
author Moiseenko, V. E.
Lozin, A. V.
Kozulia, M. M.
Mironov, Yu. K.
Romanov, V. S.
Konovalov, V. G.
Shapoval, A. N.
author_facet Moiseenko, V. E.
Lozin, A. V.
Kozulia, M. M.
Mironov, Yu. K.
Romanov, V. S.
Konovalov, V. G.
Shapoval, A. N.
author_sort Moiseenko, V. E.
title Альфвенiвський нагрiв плазми в стелараторi Ураган-2М
title_short Альфвенiвський нагрiв плазми в стелараторi Ураган-2М
title_full Альфвенiвський нагрiв плазми в стелараторi Ураган-2М
title_fullStr Альфвенiвський нагрiв плазми в стелараторi Ураган-2М
title_full_unstemmed Альфвенiвський нагрiв плазми в стелараторi Ураган-2М
title_sort альфвенiвський нагрiв плазми в стелараторi ураган-2м
title_alt Alfv´en Plasma Heating in Stellarator Uragan-2M
description 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+ andC4+ 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.
publisher Publishing house "Academperiodika"
publishDate 2018
url https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018690
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first_indexed 2023-03-24T08:56:38Z
last_indexed 2023-03-24T08:56:38Z
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