Перегляд за темою "Magnetic confinement"

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2-D electron system in the RF-discharge plasma. Part II. similarity of TDES in a solid and in the RF discharge

Berezhnyj, V.L.; Berezhnaya, I.V. (Вопросы атомной науки и техники, 2019)

Comparison studies have been carried out into structural and physical peculiarities of the two-dimensional electron system (TDES) in solids and the RF plasma. The observed similarity points to possible workability and ...
Alfvén wave heating and runaway discharges in the TCABR tokamak

Galvão, R.M.O.; Bellintani Jr., V.; Elfimov, A.G.; Elizondo, J.I.; Fagundes, A.N.; Ferreira, A.A.; Fonseca, A.M.M.; Kuznetsov, Yu.K.; Lerche, E.A.; Nascimento, I.C.; Ozono, E.M.; Ruchko, L.F.; de Sá, W.P.; Saettone, E.A.O.; Sanada, E.K.; Severo, J.H.F.; da Silva, R.P.; Tsypin, V.S.; Usuriaga, O.C.; Vannucci, A. (Вопросы атомной науки и техники, 2002)

Recent results of experiments on Alfvén wave heating and runaway discharges carried out in the TCABR tokamak are presented. A new antenna type has been installed to allow wave excitation with higher RF currents and lower ...
Analysis of drift orbits in closed magnetic configurations with drift rotation transformation

Khvesyuk, V.I.; Chirkov, A.Yu. (Вопросы атомной науки и техники, 2002)

A study is made of the dynamics of particles interacting with electromagnetic field fluctuations in a plasma in the presence of a magnetic field. Possible mechanism of anomalous transport is analyzed. Estimates of the ...
Analytical calculations of the angles of rotational transform specified by different plasma pressure profiles and an external transverse magnetic field in the torsatron

Kuznetsov, Yu.К.; Pinos, I.B.; Tyupa, V.I. (Вопросы атомной науки и техники, 2003)

The authors of the present work have calculated the angles specified by various plasma pressure profiles depending on the parameter α that characterizes the profile of vacuum angles of rotation angles and on the magnetic ...
Angles of rotational transform behavior with plasma pressure variations in the torsatron

Kuznetsov, Yu.K.; Pinos, I.B.; Tyupa, V.I. (Вопросы атомной науки и техники, 2002)
An l=2 torsatron with centered planar magnetic axis

Kotenko, V.G. (Вопросы атомной науки и техники, 2008)

The paper is concerned with properties of magnetic surface configurations that have the planar magnetic axis coincident with the circular geometrical axis of the torus. The calculations were performed for the model of an ...
A numerical model for second harmonic ion cyclotron heating of sloshing ions in mirror trap

Moiseenko, V.E.; Ågren, O. (Вопросы атомной науки и техники, 2006)

A numerical model calculating the distribution of radio-frequency fields and absorption of their energy by sloshing ions is presented. The model solves time-harmonic Maxwell’s equations written in terms of the electric ...
Appearance of neoclassical effects in plasma behavior in torsatron Uragan-3М

Pashnev, V.K.; Sorokovoy, Ed.L. (Вопросы атомной науки и техники, 2008)

At present paper the existence of longitudinal current in plasma and time dependence of plasma density in experiments on torsatron U-3M are explained from the point of neoclassical theory. The time evolution of longitudinal ...
A scenario of pulsed ecrh wall conditioning in hydrogen for the Wendelstein 7-X helias

Moiseenko, V.E.; Beletskii, A.A.; Shapoval, A.M.; Wauters, T.; Goriaev, A.; Brunner, K.J.; Buttenschön, B.; Drewelow, P.; Winters, V.; Brakel, R.; Dinklage, A.; Brezinsek, S.; Stange, T.; Laqua, H.; Lazersson, S.; W7-X Team (Вопросы атомной науки и техники, 2019)

A new wall conditioning scenario in hydrogen atmosphere for the Wendelstein 7-X stellarator-helias (W7-X) has been proposed and tested in part. Feasibility of the proposed scenario has been demonstrated on W7-X at OP1.2b ...
A torsatron with a reversed longitudinal magnetic field as a magnetic system for a research fusion reactor

Kotenko, V.G.; Romanov, S.S.; Besedin, N.T. (Вопросы атомной науки и техники, 2002)
Axisymmetric open magnetic systems for plasma confinement

Kruglyakov, E.P.; Dimov, G.I.; Ivanov, A.A.; Koidan, V.S. (Вопросы атомной науки и техники, 2002)

At present, three modern types of different mirror machines for plasma confinement and heating exist in Novosibirsk (Gas Dynamic Trap, -GDT, Multi-mirror, - GOL-3, Tandem Mirror, -AMBAL-M). All these systems are attractive ...
Behavior dynamics of low-frequency MHD-fluctuations and main plasma parameters in U-3M torsatron in RF-heating mode

Pashnev, V.K.; Sorokovoy, E.L.; Petrushenya, A.A.; Ozherel’ev, F.I.; Baron, D.I. (Вопросы атомной науки и техники, 2016)

A significant decrease in the intensity of low-frequency MHD-activity is accompanied by sharp increase of plasma energy content in U-3M torsatron. Plasma is generated and heated by RF-fields with frequency of w = 0.8w(ci) ...
Behavior features of the ungrounded antenna potential shift in Uragan-2M torsatron

Korovin, V.B.; Tarasov, I.K.; Lozin, A.V.; Kozulia, M.M.; Sorokovoy, E.L.; Kramskoy, E.D.; Gribanov, V.Yu.; Baron, D.I.; Tsybenko, S.A. (Problems of Atomic Science and Technology, 2023)

The potential shift appears at frame antenna during plasma creation in Uragan 2M torsatron. This paper provides experimental study of that potential dynamics (Ump). The measurements showed that Ump value can be both positive ...
Behaviour features of the radiative losses of the torsatron U – 3M plasma

Kotsubanov, V.D.; Kulaga, A.E.; Nikolskij, I.K.; Pashnev, V.K.; Tsybenko, S.A. (Вопросы атомной науки и техники, 2006)

The total bolometrically measured plasma radiation losses on the RF heating power were found. The results of measurements demonstrate a nonmonotonic dependence of radiation losses on RF power. Namely, at low RF power levels ...
Calculation of the magnetic surfaces of the Uragan-2M torsatron with zero current in a single toroidal magnetic field coil

Nemov, V.V.; Kalyuzhnyj, V.N.; Lesnyakov, G.G.; Kozulya, M.M. (Вопросы атомной науки и техники, 2016)

Possibility of existence of closed magnetic surfaces in the Uragan-2M torsatron is analysed in case of zero current in one coil of the set of the toroidal field coils. An influence of the current-feeds and detachable ...
Calculations of the geodesic curvature of a magnetic line for the URAGAN-2M torsatron with taking into account the influence of the current-feeds and detachable joints of the helical winding

Nemov, V.V.; Kalyuzhnyj, V.N.; Kasilov, S.V.; Lesnyakov, G.G.; Besedi, N.T. (Вопросы атомной науки и техники, 2006)

The database for the coils of the U-2M magnetic system which wasformerly used in computations of magnetic surfaces with taking into account the influence of the current-feeds and detachable joints of the helical winding ...
Calculations of the magnetic well determined by different plasma pressure profiles and an external transverse magnetic field in the torsatron

Tyupa, V.I.; Pinos, I.B. (Вопросы атомной науки и техники, 2005)

The present paper deals with the calculations of a relative magnetic-well depth in a torsatron using the formulas of averaging over magnetic surfaces. The calculations were made for different functions of vacuum angles of ...
Characteristics of edge plasma turbulence in spontaneous change of confinement mode in the URAGAN-3M torsatron

Sorokovoy, E.L.; Grigor’eva, L.I.; Chechkin, V.V.; Volkov, Ye.D.; Sorokovoy, Ye.L.; Burchenko, P.Ya.; Tsybenko, S.A.; Lozin, A.V.; Litvinov, A.P.; Masuzaki, S.; Yamazaki, K. (Вопросы атомной науки и техники, 2005)

It is shown that in the Uragan-3M torsatron under conditions of spontaneous change of confinement mode caused by formation of an internal transport barrier, a layer with the E×B velocity shear appears at the boundary of ...
Characteristics of main configurations of Wendelstein 7-X

Andreeva, T.; Kisslinger, J.; Wobig, H. (Вопросы атомной науки и техники, 2002)

For nine main magnetic configurations of Wendelstein 7-X the vacuum magnetic fields, Fourier coefficients, rotational transform profile, magnetic well, helical and effective helical ripple values are computed and results ...
Coil design for the straight field line mirror

Ågren, O.; Moiseenko, V.Е. (Problems of Atomic Science and Technology, 2022)

This paper briefly describes numerical design of 3D super-conduction coils aimed to mimic analytically derived magnetic field for the Straight Field Line Mirror (SFLM) concept. The paper is based on a manuscript for a ...

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