EFFECTS OF ICRH ON ELECTROSTATIC FLUCTUATIONS AND PARTICLE-TRANSPORT IN THE BOUNDARY PLASMA OF TEXTOR

被引：19

作者：

BORA, D

IVANOV, RS

VANOOST, G

SAMM, U

机构：

[1] INST HIGH TEMP PHYS, MOSCOW, USSR

[2] INST PLASMA RES, GANDHI SAGAR 382424, INDIA

[3] KONINKLIJKE MIL SCH, ASSOC EURATOM, PLASMA PHYS LAB, BRUSSELS, BELGIUM

来源：

NUCLEAR FUSION | 1991年 / 31卷 / 12期

关键词：

D O I：

10.1088/0029-5515/31/12/010

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：

Direct current (DC) driven and turbulence driven cross-field particle fluxes have been deduced from Langmuir probe measurements during discharges with ion cyclotron resonance heating (ICRH) in the TEXTOR tokamak. Spectral analysis of fluctuations of the floating potential at spatially separated probe pins has been used to determine the velocity associated with the poloidal rotation of the boundary plasma. Characteristics of the turbulence spectra of density and potential fluctuations at the edge during ICRH have been measured and compared with the corresponding spectra during standard ohmically heated discharges. It has been observed that both DC driven and turbulence driven fluxes increase significantly during ICRH. The measured high particle fluxes indicate motion in DC convective cells. The DC convective flux and the turbulence driven flux are partly counteracting.

引用

页码：2383 / 2391

页数：9

共 24 条

[11]

NEDOSPASOV AV, 1991, J NUCL MATER, V176, P169

[12] BIASED LIMITER EXPERIMENTS ON TEXT [J].

PHILLIPS, PE ;

WOOTTON, AJ ;

ROWAN, WL ;

RITZ, CP ;

RHODES, TL ;

BENGTSON, RD ;

HODGE, WL ;

DURST, RD ;

MCCOOL, SC ;

RICHARDS, B ;

GENTLE, KW ;

BROWER, DL ;

PEEBLES, WA ;

LUHMANN, NC ;

SCHOCH, P ;

FORSTER, JC ;

HICKOK, RL ;

EVANS, TE .

JOURNAL OF NUCLEAR MATERIALS, 1987, 145 :807-811

[13] TURBULENT STRUCTURE IN THE EDGE PLASMA OF THE TEXT TOKAMAK [J].

RITZ, CP ;

BENGTSON, RD ;

LEVINSON, SJ ;

POWERS, EJ .

PHYSICS OF FLUIDS, 1984, 27 (12) :2956-2959

[14] EVIDENCE FOR CONFINEMENT IMPROVEMENT BY VELOCITY-SHEAR SUPPRESSION OF EDGE TURBULENCE [J].

RITZ, CP ;

LIN, H ;

RHODES, TL ;

WOOTTON, AJ .

PHYSICAL REVIEW LETTERS, 1990, 65 (20) :2543-2546

[15]

ROBINSON DC, 1987, TURBULENCE ANOMALOUS, P21

[16] GLOBAL PARTICLE CONFINEMENT IN THE TEXAS EXPERIMENTAL TOKAMAK [J].

ROWAN, WL ;

KLEPPER, CC ;

RITZ, CP ;

BENGTSON, RD ;

GENTLE, KW ;

PHILLIPS, PE ;

RHODES, TL ;

RICHARDS, B ;

WOOTTON, AJ .

NUCLEAR FUSION, 1987, 27 (07) :1105-1118

[17] EVIDENCE FOR THE INFLUENCE OF RADIAL AND POLOIDAL DRIFT VELOCITIES ON THE SCRAPE-OFF LAYER OF A TOROIDAL LIMITER [J].

SAMM, U ;

BOGEN, P ;

BORA, D ;

CLAASSEN, HA ;

GERHAUSER, H ;

HARTWIG, H ;

HINTZ, E ;

HOTHKER, K ;

IVANOV, RS ;

LIE, YT ;

POSPIESZCZYK, A ;

RUSBULDT, D ;

SCHWEER, B .

NUCLEAR FUSION, 1991, 31 (07) :1386-1389

[18] H-MODE BEHAVIOR INDUCED BY CROSS-FIELD CURRENTS IN A TOKAMAK [J].

TAYLOR, RJ ;

BROWN, ML ;

FRIED, BD ;

GROTE, H ;

LIBERATI, JR ;

MORALES, GJ ;

PRIBYL, P ;

DARROW, D ;

ONO, M .

PHYSICAL REVIEW LETTERS, 1989, 63 (21) :2365-2368

[19]

TYNAN GR, 1991, THESIS U CALIFORNIA

[20] EFFECT OF RF HEATING ON DC ELECTRIC-FIELDS IN THE SOL OF TEXTOR [J].

VANNIEUWENHOVE, R ;

VANOOST, G ;

VANDENPLAS, PE ;

MOYER, RA ;

GRAY, D ;

CONN, RW .

FUSION ENGINEERING AND DESIGN, 1990, 12 (1-2) :231-235

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