Filaments in the edge confinement region of TJ-II

被引：6

作者：

van Milligen, B. Ph. ^{[1
]}

Nicolau, J. H. ^{[2
]}

Liu, B. ^{[3
]}

Grenfell, G. ^{[1
,4
]}

Losada, U. ^{[1
]}

Carreras, B. A. ^{[2
]}

Garcia, L. ^{[2
]}

Hidalgo, C. ^{[1
]}

机构：

[1] CIEMAT, Lab Nacl Fus, Avda Complutense 40, Madrid 28040, Spain

[2] Univ Carlos III, Madrid 28911, Spain

[3] Southwest Jiao Tong Univ, Sch Phys Sci & Technol, Inst Fus Sci, Chengdu, Sichuan, Peoples R China

[4] Consorzio RFX, Corso Stati Uniti 4, I-35127 Padua, Italy

来源：

NUCLEAR FUSION | 2018年 / 58卷 / 02期

关键词：

filaments; stellarator; magnetic confinement; STELLARATOR PLASMAS; SHEARED FLOW;

D O I：

10.1088/1741-4326/aa9db6

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：

Floating potential measurements from two remote reciprocating probes in the plasma edge region of the TJ-II stellarator are analyzed using the transfer entropy, revealing the spatial dimensions and propagation properties of filamentary structures. The results are corroborated by performing simulations with a resistive MHD model and analyzing data from synthetic diagnostics. The transfer entropy captures the rotation of the filaments and allows the calculating of their rotation velocity. This deduced velocity was compared to the (known) poloidal velocity of the plasma and showed a relatively good agreement.

引用

页数：11

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