2-d phase contrast imaging of turbulence structure on LHD

被引：10

作者：

Vyacheslavov, LN ^{[1
]}

Tanaka, K

Sanin, AL

Kawahata, K

Michael, C

Akiyama, T

机构：

[1] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[2] Natl Inst Fus Sci, Toki 5095292, Japan

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2005年 / 33卷 / 02期

关键词：

anomalous transport; fusion plasma; magnetic confinement; microturbulence; phase contrast;

D O I：

10.1109/TPS.2005.845955

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：

CO2 laser-based phase contrast imaging (PCI) equipped with a 6 by 8 element two-dimensional (2-D) array of photoconductors is used on the large helical device (LHD) for studying plasma density microlluctuations. Observing 2-D structures of turbulence and strong magnetic shear along the viewing line on LHD permit conversion of a 2-D-PCI image to a 2-D picture of the radial distribution of the turbulence k-spectrum. The PCI images are sampled at 1 MHz so the images or associated spectral distributions, when assembled in a movie, present the dynamic radial structure of turbulence.

引用

页码：464 / 465

页数：2

共 4 条

[1] Improvement of the laser phase contrast method for measuring the spatial distribution of electron density fluctuations in Heliotron E [J].