Confinement of Hot Ion Plasma with <i>β</i> = 0.6 in the Gas Dynamic Trap

Bagryansky, P. A.; Anikeev, A. V.; Beklemishev, A. D.; Donin, A. S.; Ivanov, A. A.; Korzhavina, M. S.; Kovalenko, Yu. V.; Kruglyakov, E. P.; Lizunov, A. A.; Maximov, V. V.; Murakhtin, S. V.; Prikhodko, V. V.; Pinzhenin, E. I.; Pushkareva, A.N.; Savkin, V. Ya.; Zaytsev, K. V.

doi:10.13182/fst11-a11568

Cited by 55 publications

(49 citation statements)

References 7 publications

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“…Firstly, transverse relative plasma pressure was not to exceed 0.5, i.e. its value had to be under the limit reached in GDT experiments [8]. Beam capture by plasma was constrained by 90 %.…”

Section: Numerical Experiments Setupmentioning

confidence: 99%

Length and power scalings of GDT– and GDMT–based neutron sources

Yurov

Prikhodko

Bagryansky

2016

AIP Conference Proceedings

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Section: Numerical Experiments Setupmentioning

confidence: 99%

Length and power scalings of GDT– and GDMT–based neutron sources

Yurov

Prikhodko

Bagryansky

2016

AIP Conference Proceedings

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“…This is a property that allows a concentration of the neutron production in a well-defined region of the source, see, e.g., Refs. [1,2,3,7]. It proves to be beneficial for controlled periodical axial displacement of a right boundary of a high-flux zone, so that the neutron production at the right end of the "shelf" decreases to a small value and then comes back (we are referring here to the right-hand test zone shown in Fig.…”

Section: Modulating the Neutron Fluxmentioning

confidence: 99%

“…Its design is well supported by the existing experimental data from the on-going mirror experiment at Novosibirsk [2,3]. The flux of 2 MW/m 2 of 14 MeV neutrons would allow performing the life-time tests of critical components of the first wall and blanket.…”

Section: Introductionmentioning

confidence: 99%

Modulating the neutron flux from a mirror neutron source

Ryutov¹

2012

AIP Conference Proceedings

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Abstract. A 14-MeV neutron source based on a Gas-Dynamic Trap will provide a high flux of 14 MeV neutrons for fusion materials and sub-component testing. In addition to its main goal, the source has potential applications in condensed matter physics and biophysics. In this report, the author considers adding one more capability to the GDT-based neutron source, the modulation of the neutron flux with a desired frequency. The modulation may be an enabling tool for the assessment of the role of non-steadystate effects in fusion devices as well as for high-precision, low-signal basic science experiments favoring the use of the synchronous detection technique. A conclusion is drawn that modulation frequency of up to 1 kHz and modulation amplitude of a few percent is achievable. Limitations on the amplitude of modulations at higher frequencies are discussed.

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“…Второй компонент -быстрые ионы с энергией 10-20 кэВ и анизотропной в пространстве скоростей функцией распределения создаётся в результате наклонной инжекции мощных атомарных пучков водорода или дейтерия и удерживается в адиабатическом режиме. Подробное описание установки ГДЛ можно найти, например, в работе [9].…”

Section: установка гдл с двумя амбиполярными ячейкамиunclassified

Electronic Structure Investigations of Hydrocarbon Films Obtained Under Controllable Plasma Conditions of T-10 Tokamak

Svechnikov¹,

Stankevich²,

Arkhipov³

et al. 2012

PAST-TF

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В физике открытых ловушек одной из ключевых проблем является проблема продольного удержания плазмы. В разные годы было предложено несколько эффективных способов ограничения продольных потоков частиц и энергии из пробкотронов: ам-биполярные ячейки, гофрированные ловушки и др. В предлагаемой статье описываются результаты экспериментов по созда-нию эффективных амбиполярных барьеров для подавления продольных потерь из установки Газодинамическая ловушка (ГДЛ). Основной целью выполнения данной работы было экспериментальное исследование влияния амбиполярных электрических полей, создаваемых в двух дополнительных концевых пробкотронах («амбиполярных пробках») популяцией горячих анизо-тропных ионов, на продольное удержание плазмы в газодинамической ловушке. Эти исследования продемонстрировали улуч-шение продольного удержания плазмы в ГДЛ при использовании двух амбиполярных барьеров, в результате чего параметр nτ|| в приосевой области был увеличен более чем в 6 раз.Ключевые слова: плазма, открытые магнитные ловушки, амбиполярное удержание. EXPERIMENTAL STUDY OF THE AMBIPOLAR PLASMA CONFINEMENT AT GDT DEVICE A.V. Anikeev, P.A. Bagryansky, A.S. Donin, K.V. Zaytsev, M.S. Korzhavina, A.A. Lizunov, A.N. Lozhkina, V.V. Maksimov, V.V. Prikhodko, E.I. Soldatkina, A.L. Solomakhin Budker Institute of Nuclear Physics SB RAS, Novosibirsk State University, Novosibirsk, RussiaThe key problem of the mirror traps is the longitudinal plasma confinement. Over the years, several ways how to suppress the longitudinal flow of particles and energy from the mirror cell were suggested: ambipolar plugs, multi-mirror traps, etc. This paper presents the results of plasma experiment with two ambipolar end-plugs at GDT devise in the Budker Institute, Novosibirsk. The main objective of the presented research was influence of electric potential created in end-plugs by neutral beam injection on axial plasma confinement at GDT. The experiment demonstrated effective suppression of longitudinal losses and improvement of plasma confinement nτ up to 6 times.

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Confinement of Hot Ion Plasma with β = 0.6 in the Gas Dynamic Trap

Cited by 55 publications

References 7 publications

Length and power scalings of GDT– and GDMT–based neutron sources

Length and power scalings of GDT– and GDMT–based neutron sources

Modulating the neutron flux from a mirror neutron source

Electronic Structure Investigations of Hydrocarbon Films Obtained Under Controllable Plasma Conditions of T-10 Tokamak

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