Increasing the beta limit due to neoclassical tearing modes by raising the axial safety factor q(0) > 1

被引：34

作者：

La Haye, RJ ^{[1
]}

Rice, BW ^{[1
]}

Strait, EJ ^{[1
]}

机构：

[1] Gen Atom Co, San Diego, CA 92186 USA

来源：

NUCLEAR FUSION | 2000年 / 40卷 / 01期

关键词：

D O I：

10.1088/0029-5515/40/1/304

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：

Resistive neoclassical tearing modes (NTMs) can cause the stable beta value in long pulse, high confinement plasmas to fall significantly below that predicted by ideal theory. The NTM islands which degrade confinement and limit beta are induced and sustained by helically perturbed bootstrap currents. A combination of shaping and q-profile modification is used in the DIII-D tokamak to increase this beta limit.

引用

页码：53 / 58

页数：6

共 14 条

[1] TRANSPORT EFFECTS OF LOW (M,N) MHD MODES ON TFTR SUPERSHOTS [J].

CHANG, Z ;

FREDRICKSON, ED ;

CALLEN, JD ;

MCGUIRE, KM ;

BELL, MG ;

BUDNY, RV ;

BUSH, CE ;

DARROW, DS ;

JANOS, AC ;

JOHNSON, LC ;

PARK, HK ;

SCOTT, SD ;

STRACHAN, JD ;

SYNAKOWSKI, EJ ;

TAYLOR, G ;

WIELAND, RM ;

ZARNSTORFF, MC ;

ZWEBEN, SJ .

NUCLEAR FUSION, 1994, 34 (10) :1309-1336

[2] OBSERVATION OF NONLINEAR NEOCLASSICAL PRESSURE-GRADIENT-DRIVEN TEARING MODES IN TFTR [J].

CHANG, Z ;

CALLEN, JD ;

FREDRICKSON, ED ;

BUDNY, RV ;

HEGNA, CC ;

MCGUIRE, KM ;

ZARNSTORFF, MC .

PHYSICAL REVIEW LETTERS, 1995, 74 (23) :4663-4666

[3]

GIANAKON TA, 1996, B AM PHYS SOC, V41, P1371

[4]

GIANAKON TA, 1998, B AM PHYS SOC, V43, P1763

[5] β scaling for the onset of neoclassical tearing modes at ASDEX Upgrade [J].

Gunter, S ;

Gude, A ;

Maraschek, M ;

Sesnic, S ;

Zohm, H .

NUCLEAR FUSION, 1998, 38 (10) :1431-1434

[6] Dynamics of seed magnetic island formation due to geometrically coupled perturbations [J].

Hegna, CC ;

Callen, JD ;

LaHaye, RJ .

PHYSICS OF PLASMAS, 1999, 6 (01) :130-136

[7] STABILITY OF TEARING MODES IN TOKAMAK PLASMAS [J].

HEGNA, CC ;

CALLEN, JD .

PHYSICS OF PLASMAS, 1994, 1 (07) :2308-2318

[8]

Huysmans GTA, 1999, NUCL FUSION, V39, P1965

[9] The fishbone instability in ASDEX upgrade [J].

Kass, T ;

Bosch, HS ;

Hoenen, F ;

Lackner, K ;

Maraschek, M ;

Zohm, H .

NUCLEAR FUSION, 1998, 38 (06) :807-819

[10]

La Haye RJ, 1998, NUCL FUSION, V38, P987, DOI 10.1088/0029-5515/38/7/303

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Increasing the beta limit due to neoclassical tearing modes by raising the axial safety factor q(0) &gt; 1

Increasing the beta limit due to neoclassical tearing modes by raising the axial safety factor q(0) > 1