Observations of multiple magnetic islands in the core of a reversed field pinch

被引：34
作者：
Franz, P
Marrelli, L
Piovesan, P
Chapman, BE
Martin, P
Predebon, I
Spizzo, G
White, RB
Xiao, C
机构：
[1] EURATOM, Consorzio RFX, ENEA Fus, I-35127 Padua, Italy
[2] Ist Nazl Fis Mat, UdR Padova, Padua, Italy
[3] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA
[4] Princeton Univ, Plasma Phys Lab, Princeton, NJ 08540 USA
[5] Univ Saskatchewan, Dept Phys & Engn Phys, Saskatoon, SK S7J 3J2, Canada
来源：
PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 12期
关键词：
D O I：
10.1103/PhysRevLett.92.125001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We describe in this Letter the first measurement of multiple islands in the core of a reversed field pinch (RFP). These islands appear with current profile modification leading to magnetic fluctuation reduction in the Madison symmetric torus RFP. Magnetic island widths decrease to an unprecedented level, reducing the overlap of adjacent islands and allowing distinct islands to appear. The structures are observed in multichord measurements of soft-x-ray emissivity. The soft-x-ray data is validated with Poincare reconstructions of the magnetic field structure in the core.
引用
收藏
页码：125001 / 1
页数：4
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