MAGNETIC FLUCTUATIONS IN CURRENTLESS PLASMAS IN THE ATF TORSATRON

被引：2

作者：

HARRIS, JH ^{[1
]}

BELL, JD ^{[1
]}

DUNLAP, JL ^{[1
]}

PARE, VK ^{[1
]}

BELL, GL ^{[1
]}

BIGELOW, TS ^{[1
]}

ENGLAND, AC ^{[1
]}

GLOWIENKA, JC ^{[1
]}

HORTON, LD ^{[1
]}

HOWE, HC ^{[1
]}

ISLER, RC ^{[1
]}

MENON, MM ^{[1
]}

MURAKAMI, M ^{[1
]}

MORRIS, RN ^{[1
]}

NEILSON, GH ^{[1
]}

RASMUSSEN, DA ^{[1
]}

WILGEN, JB ^{[1
]}

WING, WR ^{[1
]}

机构：

[1] MARTIN MARIETTA ENERGY SYST INC,DIV COMP & TELECOMMUN,OAK RIDGE,TN 37831

来源：

NUCLEAR FUSION | 1991年 / 31卷 / 06期

关键词：

D O I：

10.1088/0029-5515/31/6/007

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：

Measurements of poloidal magnetic field fluctuations outside currentless, finite-beta (<beta> less-than-or-equal-to 0.5%, beta-0 less-than-or-equal-to 3%) plasmas with peaked pressure profiles in the Advanced Toroidal Facility (ATF) torsatron reveal bands of small (B approximately-theta/B-phi approximately 10(-5), coherent fluctuations in the frequency range 5-60 kHz. The geometrical structure of these fluctuations shows n = 1 toroidal mode symmetry, with inferred poloidal mode numbers of m = 2 and 3. The coherent B approximately-theta amplitudes increase with <beta> for <beta> less-than-or-similar-to 0.3%, and then saturate and begin to decrease with <beta> for <beta> greater-than-or-similar-to 0.3%.

引用

页码：1099 / 1106

页数：8

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