Electron density fluctuation measurements using a multichannel microwave interferometer in GAMMA 10

被引：15

作者：

Yoshikawa, M. ^{[1
]}

Shima, Y. ^{[1
]}

Matsumoto, T. ^{[1
]}

Nakahara, A. ^{[1
]}

Yanagi, N. ^{[1
]}

Itakura, A. ^{[1
]}

Hojo, H. ^{[1
]}

Kobayashi, T. ^{[1
]}

Matama, K. ^{[1
]}

Tatematsu, Y. ^{[1
]}

Imai, T. ^{[1
]}

Kohagura, J. ^{[1
]}

Hirata, M. ^{[1
]}

Nakashima, Y. ^{[1
]}

Cho, T. ^{[1
]}

机构：

[1] Univ Tsukuba, Plasma Res Ctr, Tsukuba, Ibaraki 3058577, Japan

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2006年 / 77卷 / 10期

关键词：

POTENTIAL FORMATION; PLASMA; CONFINEMENT;

D O I：

10.1063/1.2227445

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Measurement of fluctuation in plasma is important for studying the improvement in plasma confinement by the formation of the plasma confinement potential. The density fluctuation is observed by microwaves by methods such as interferometry, reflectometry and Fraunhofer diffraction method. We have constructed a new multichannel microwave interferometer to measure the plasma density and fluctuation radial profiles in a single plasma shot. We successfully measured the time-dependent density and line-integrated density fluctuation radial profiles in a single plasma shot using the multichannel microwave interferometer. Thus, we have developed a useful tool for studying the improvement in plasma confinement by the formation of plasma confinement potential. (c) 2006 American Institute of Physics.

引用

页数：3

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