Observation of neoclassical transport in reverse shear plasmas on TFTR

被引:17
作者
Efthimion, PC
Von Goeler, S
Houlberg, WA
Synakowski, EJ
Zarnstorff, MC
Batha, SH
Bell, RE
Bitter, M
Bush, CE
Levinton, FM
Mazzucato, E
McCune, DC
Mueller, D
Park, HK
Ramsey, AT
Roquemore, AL
Taylor, G
机构
[1] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA
[2] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA
[3] Fus Phys & Technol, Torrance, CA 90503 USA
关键词
D O I
10.1088/0029-5515/39/11Y/333
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
Perturbative experiments on TFTR have investigated the transport of multiple ion species in reverse shear (RS) plasmas. The profile evolutions of trace tritium and helium and intrinsic carbon indicate the formation of core particle transport barriers in enhanced reverse shear (ERS) plasmas. There is an order of magnitude reduction in the particle diffusivity inside the RS region. The diffusivities for these species in ERS plasmas agree with neoclassical theory.
引用
收藏
页码:1905 / 1909
页数:5
相关论文
共 10 条
[1]   Observation of particle transport barriers in reverse shear plasmas on the Tokamak Fusion Test Reactor [J].
Efthimion, PC ;
von Goeler, S ;
Houlberg, WA ;
Synakowski, EJ ;
Zarnstorff, MC ;
Batha, SH ;
Bell, RE ;
Bitter, M ;
Bush, CE ;
Levinton, FM ;
Mazzucato, E ;
McCune, D ;
Mueller, D ;
Park, H ;
Ramsey, AT ;
Roquemore, AL ;
Taylor, G .
PHYSICS OF PLASMAS, 1998, 5 (05) :1832-1838
[2]   TRITIUM PARTICLE-TRANSPORT EXPERIMENTS ON TFTR DURING D-T OPERATION [J].
EFTHIMION, PC ;
JOHNSON, LC ;
STRACHAN, JD ;
SYNAKOWSKI, EJ ;
ZARNSTORFF, M ;
ADLER, H ;
BARNES, C ;
BUDNY, RV ;
JOBES, FC ;
LOUGLIN, M ;
MCCUNE, D ;
MUELLER, D ;
RAMSEY, AT ;
REWOLDT, G ;
ROQUEMORE, AL ;
TANG, WM ;
TAYLOR, G .
PHYSICAL REVIEW LETTERS, 1995, 75 (01) :85-88
[3]   Bootstrap current and neoclassical transport in tokamaks of arbitrary collisionality and aspect ratio [J].
Houlberg, WA ;
Shaing, KC ;
Hirshman, SP ;
Zarnstorff, MC .
PHYSICS OF PLASMAS, 1997, 4 (09) :3230-3242
[4]   EVALUATION OF CURRENT DRIVE REQUIREMENTS AND OPERATING CHARACTERISTICS OF A HIGH BOOTSTRAP FRACTION ADVANCED TOKAMAK REACTOR [J].
HOULBERG, WA ;
ATTENBERGER, SE .
FUSION TECHNOLOGY, 1994, 26 (03) :566-571
[6]   IMPROVED CONFINEMENT WITH REVERSED MAGNETIC SHEAR IN TFTR [J].
LEVINTON, FM ;
ZARNSTORFF, MC ;
BATHA, SH ;
BELL, M ;
BELL, RE ;
BUDNY, RV ;
BUSH, C ;
CHANG, Z ;
FREDRICKSON, E ;
JANOS, A ;
MANICKAM, J ;
RAMSEY, A ;
SABBAGH, SA ;
SCHMIDT, GL ;
SYNAKOWSKI, EJ ;
TAYLOR, G .
PHYSICAL REVIEW LETTERS, 1995, 75 (24) :4417-4420
[7]   Turbulent fluctuations in TFTR configurations with reversed magnetic shear [J].
Mazzucato, E ;
Batha, SH ;
Beer, M ;
Bell, M ;
Bell, RE ;
Budny, RV ;
Bush, C ;
Hahm, TS ;
Hammett, GW ;
Levinton, FM ;
Nazikian, R ;
Park, H ;
Rewoldt, G ;
Schmidt, GL ;
Synakowski, EJ ;
Tang, WM ;
Taylor, G ;
Zarnstorff, MC .
PHYSICAL REVIEW LETTERS, 1996, 77 (15) :3145-3148
[8]  
Soldner FX, 1997, PLASMA PHYS CONTR F, V39, pB353, DOI 10.1088/0741-3335/39/12B/027
[9]   ENHANCED CONFINEMENT AND STABILITY IN DIII-D DISCHARGES WITH REVERSED MAGNETIC SHEAR [J].
STRAIT, EJ ;
LAO, LL ;
MAUEL, ME ;
RICE, BW ;
TAYLOR, TS ;
BURRELL, KH ;
CHU, MS ;
LAZARUS, EA ;
OSBORNE, TH ;
THOMPSON, SJ ;
TURNBULL, AD .
PHYSICAL REVIEW LETTERS, 1995, 75 (24) :4421-4424
[10]   Roles of electric field shear and Shafranov shift in sustaining high confinement in enhanced reversed shear plasmas on the TFTR Tokamak [J].
Synakowski, EJ ;
Batha, SH ;
Beer, MA ;
Bell, MG ;
Bell, RE ;
Budny, RV ;
Bush, CE ;
Efthimion, PC ;
Hammett, GW ;
Hahm, TS ;
LeBlanc, B ;
Levinton, F ;
Mazzucato, E ;
Park, H ;
Ramsey, AT ;
Rewoldt, G ;
Scott, SD ;
Schmidt, G ;
Tang, WM ;
Taylor, G ;
Zarnstorff, MC .
PHYSICAL REVIEW LETTERS, 1997, 78 (15) :2972-2975