Quiescent double barrier regime in the DIII-D tokamak

被引:142
作者
Greenfield, CM
Burrell, KH
DeBoo, JC
Doyle, EJ
Stallard, BW
Synakowski, EJ
Fenzi, C
Gohil, P
Groebner, RJ
Lao, LL
Makowski, MA
McKee, GR
Moyer, RA
Rettig, CL
Rhodes, TL
Pinsker, RI
Staebler, GM
West, WP
机构
[1] Gen Atom Co, San Diego, CA 92186 USA
[2] Univ Calif Los Angeles, Los Angeles, CA USA
[3] Lawrence Livermore Natl Lab, Livermore, CA USA
[4] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA
[5] Univ Wisconsin, Madison, WI USA
[6] Univ Calif San Diego, San Diego, CA 92103 USA
关键词
D O I
10.1103/PhysRevLett.86.4544
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A new sustained high-performance regime, combining discrete edge and core transport barriers, has been discovered in the DIII-D tokamak. Edge localized modes (ELMs) are replaced by a steady oscillation that increases edge particle transport, thereby allowing particle control with no ELM-induced pulsed divertor heat load. The core barrier resembles those usually seen with a low (L) mode edge, without the degradation often associated with ELMs. The barriers are separated by a narrow region of hi,oh transport associated with a zero crossing in the E x B shearing rate.
引用
收藏
页码:4544 / 4547
页数:4
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