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Stochastic loss of alpha particles in a helias reactor

Abstract. It is shown that collisionless orbit transformation of the locally trapped particles to the locally passing ones and vice versa in the Wendelstein-line optimized stellarators results in stochastic diffusion of energetic ions. This diffusion can lead to the loss of an essential fraction of...

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Bibliographic Details
Main Authors:	Kolesnichenko, Ya.I., Beidler, C.D., Marchenko, V.S., Sidorenko, I.N., Wobig, H.
Format:	Article
Language:	English
Published:	Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2000
Series:	Вопросы атомной науки и техники
Subjects:	Magnetic confinement
Online Access:	http://dspace.nbuv.gov.ua/handle/123456789/82355
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id	irk-123456789-82355
record_format	dspace
spelling	irk-123456789-823552015-06-01T08:58:04Z Stochastic loss of alpha particles in a helias reactor Kolesnichenko, Ya.I. Beidler, C.D. Marchenko, V.S. Sidorenko, I.N. Wobig, H. Magnetic confinement Abstract. It is shown that collisionless orbit transformation of the locally trapped particles to the locally passing ones and vice versa in the Wendelstein-line optimized stellarators results in stochastic diffusion of energetic ions. This diffusion can lead to the loss of an essential fraction of energetic ion population from the region where the characteristic diffusion time is small compared to the slowing down time. The loss region and the magnitude of the loss can be minimized by shaping the plasma temperature and density profiles so that they satisfy certain requirements. The predictions of the developed theory are in agreement with the results of numerical modelling of confinementof a-particles in a Helias reactor, which was carried out in this work with the use of the orbit following code. The considered diffusion seems to represent the dominant mechanism of classical losses of a-particles in a Helias reactor. 2000 Article Stochastic loss of alpha particles in a helias reactor / Ya.I. Kolesnichenko, C.D. Beidler, V.S. Marchenko, I.N. Sidorenko, H. Wobig // Вопросы атомной науки и техники. — 2000. — № 3. — С. 22-24. — Бібліогр.: 9 назв. — рос. 1562-6016 http://dspace.nbuv.gov.ua/handle/123456789/82355 533.9 en Вопросы атомной науки и техники Національний науковий центр «Харківський фізико-технічний інститут» НАН України
institution	Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection	DSpace DC
language	English
topic	Magnetic confinement Magnetic confinement
spellingShingle	Magnetic confinement Magnetic confinement Kolesnichenko, Ya.I. Beidler, C.D. Marchenko, V.S. Sidorenko, I.N. Wobig, H. Stochastic loss of alpha particles in a helias reactor Вопросы атомной науки и техники
description	Abstract. It is shown that collisionless orbit transformation of the locally trapped particles to the locally passing ones and vice versa in the Wendelstein-line optimized stellarators results in stochastic diffusion of energetic ions. This diffusion can lead to the loss of an essential fraction of energetic ion population from the region where the characteristic diffusion time is small compared to the slowing down time. The loss region and the magnitude of the loss can be minimized by shaping the plasma temperature and density profiles so that they satisfy certain requirements. The predictions of the developed theory are in agreement with the results of numerical modelling of confinementof a-particles in a Helias reactor, which was carried out in this work with the use of the orbit following code. The considered diffusion seems to represent the dominant mechanism of classical losses of a-particles in a Helias reactor.
format	Article
author	Kolesnichenko, Ya.I. Beidler, C.D. Marchenko, V.S. Sidorenko, I.N. Wobig, H.
author_facet	Kolesnichenko, Ya.I. Beidler, C.D. Marchenko, V.S. Sidorenko, I.N. Wobig, H.
author_sort	Kolesnichenko, Ya.I.
title	Stochastic loss of alpha particles in a helias reactor
title_short	Stochastic loss of alpha particles in a helias reactor
title_full	Stochastic loss of alpha particles in a helias reactor
title_fullStr	Stochastic loss of alpha particles in a helias reactor
title_full_unstemmed	Stochastic loss of alpha particles in a helias reactor
title_sort	stochastic loss of alpha particles in a helias reactor
publisher	Національний науковий центр «Харківський фізико-технічний інститут» НАН України
publishDate	2000
topic_facet	Magnetic confinement
url	http://dspace.nbuv.gov.ua/handle/123456789/82355
citation_txt	Stochastic loss of alpha particles in a helias reactor / Ya.I. Kolesnichenko, C.D. Beidler, V.S. Marchenko, I.N. Sidorenko, H. Wobig // Вопросы атомной науки и техники. — 2000. — № 3. — С. 22-24. — Бібліогр.: 9 назв. — рос.
series	Вопросы атомной науки и техники
work_keys_str_mv	AT kolesnichenkoyai stochasticlossofalphaparticlesinaheliasreactor AT beidlercd stochasticlossofalphaparticlesinaheliasreactor AT marchenkovs stochasticlossofalphaparticlesinaheliasreactor AT sidorenkoin stochasticlossofalphaparticlesinaheliasreactor AT wobigh stochasticlossofalphaparticlesinaheliasreactor
first_indexed	2023-10-18T19:24:52Z
last_indexed	2023-10-18T19:24:52Z
_version_	1796146868599652352

Stochastic loss of alpha particles in a helias reactor

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