PLASMA PROCESSES ACCOMPANYING FAST CURRENT DECREASE IN THE TUMAN-3 TOKAMAK

被引：5
|
作者：
SAKHAROV, NV
AKATOVA, TY
ASKINAZI, LG
AFANASIEV, WI
BULANIN, VV
GOLANT, VE
GONCHAROV, SG
KRIKUNOV, SV
KORNEEV, DO
KOROTKOV, AA
LIPIN, BM
MINAEV, VB
PODUSHNIKOVA, KA
RAZDOBARIN, GT
ROZHDESTVENSKY, VV
SEMENOV, VV
TUKACHINSKY, AS
CHERNYSHEV, FV
YAROSHEVICH, SP
机构：
[1] A.F. Ioffe Phys. Tech. Inst., St. Petersburg
来源：
PLASMA PHYSICS AND CONTROLLED FUSION | 1993年 / 35卷 / 03期
关键词：
D O I：
10.1088/0741-3335/35/3/010
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We report an investigation of the influence of radial current distribution on the Tuman-3 tokamak plasma parameters under the conditions of ohmic heating with a twofold current decrease for a period 4-6 times shorter than the magnetic field diffusion time-scale. A slight change in the parameters was observed in the current ramp-down phase. The characteristic relaxation time of the plasma parameters after the current drop was considerably larger than the energy confinement time and comparable with the field diffusion time-scale. The influence of the current ramp-down on the boundary plasma is also studied. Narrowing of the current density profile is accompanied by a 1.5-2-fold rise of the energy confinement time compared with its steady-state value.
引用
收藏
页码：411 / 418
页数：8
相关论文
共 50 条
  • [21] A study of maximum β in experiments with a current ramp-down in the TUMAN-3M tokamak
    Askinazi, LG
    Andreiko, MV
    Golant, VE
    Kornev, VA
    Lebedev, SV
    Levin, LS
    Tukachinskii, AS
    PLASMA PHYSICS REPORTS, 1999, 25 (02) : 110 - 114
  • [22] LOCAL MEASUREMENTS OF POLOIDAL MAGNETIC-FIELD AND SAFETY FACTOR-Q NEAR DISCHARGE AXIS BY ACTIVE PARTICLE DIAGNOSTIC METHOD IN THE TUMAN-3 TOKAMAK
    AFANASEV, VI
    KISLYAKOV, AI
    LEBEDEV, SV
    PETROV, SY
    CHERNYSHEV, FV
    SHAKHOVETS, KG
    JETP LETTERS, 1989, 50 (11) : 485 - 490
  • [23] Heavy ion beam probe development for the plasma potential measurement on the TUMAN-3M tokamak
    Askinazi, LG
    Kornev, VA
    Lebedev, SV
    Tukachinsky, AS
    Zhubr, NA
    Dreval, NB
    Krupnik, LI
    REVIEW OF SCIENTIFIC INSTRUMENTS, 2004, 75 (10): : 3517 - 3519
  • [24] Determining Plasma Isotopic Composition from the Alfven Oscillation Frequency in the TUMAN-3M Tokamak
    Abdullina, G. I.
    Askinazi, L. G.
    Belokurov, A. A.
    Zhubr, N. A.
    Kornev, V. A.
    Krikunov, S. V.
    Lebedev, S. V.
    Mel'nik, A. D.
    Razumenko, D. B.
    Smirnov, A. I.
    Tukachinsky, A. S.
    Chernyshev, F. V.
    TECHNICAL PHYSICS LETTERS, 2019, 45 (08) : 790 - 793
  • [25] Determining Plasma Isotopic Composition from the Alfvén Oscillation Frequency in the TUMAN-3M Tokamak
    G. I. Abdullina
    L. G. Askinazi
    A. A. Belokurov
    N. A. Zhubr
    V. A. Kornev
    S. V. Krikunov
    S. V. Lebedev
    A. D. Mel’nik
    D. B. Razumenko
    A. I. Smirnov
    A. S. Tukachinsky
    F. V. Chernyshev
    Technical Physics Letters, 2019, 45 : 790 - 793
  • [26] The Spectrum of Ion Cyclotron Emission from Neutral Beam Injection Heated Plasma on the TUMAN-3M Tokamak
    Askinazi, L. G.
    Abdullina, G. I.
    Belokurov, A. A.
    Blekhshtein, M. D.
    Zhubr, N. A.
    Kornev, V. A.
    Krikunov, S. V.
    Lebedev, S. V.
    Razumenko, D. V.
    Smirnov, A. I.
    Tukachinsky, A. S.
    TECHNICAL PHYSICS LETTERS, 2018, 44 (11) : 1020 - 1023
  • [27] The First Application of the HIBP Diagnostics for co-NBI Plasma Potential Measurement in the TUMAN-3M Tokamak
    A. A. Belokurov
    G. I. Abdullina
    L. G. Askinazi
    N. A. Zhubr
    V. A. Kornev
    S. V. Lebedev
    D. V. Razumenko
    A. I. Smirnov
    A. S. Tukachinskiy
    D. A. Shergin
    Technical Physics Letters, 2023, 49 : 220 - 224
  • [28] Study of plasma fluctuations in the TUMAN-3M tokamak during various types of L-H transitions
    L. G. Askinazi
    V. V. Bulanin
    V. V. D’yachenko
    S. V. Lebedev
    L. S. Levin
    V. S. Roitershtein
    O. N. Shcherbinin
    Plasma Physics Reports, 2002, 28 : 103 - 110
  • [29] First HIBP measurement of plasma potential during the H-mode transition on the TUMAN-3M Tokamak
    Askinazi, LG
    Chmyga, AA
    Dreval, NB
    Golant, VE
    Khrebtov, SM
    Komarov, AS
    Kornev, VA
    Krupnik, LI
    Lebedev, SV
    Van Oost, G
    Shevkin, EA
    Tendler, M
    Tukachinsky, AS
    Zhubr, NA
    PLASMA PHYSICS, 2003, 669 : 175 - 178
  • [30] Study of plasma fluctuations in the Tuman-3M tokamak using microwave reflectometry with an obliquely incident probing beam
    Bulanin, VV
    Lebedev, SV
    Levin, LS
    Roytershteyn, VS
    PLASMA PHYSICS REPORTS, 2000, 26 (10) : 813 - 819
12345