Electron cyclotron current drive at the second harmonic in the WT-3 tokamak.
Electron cyclotron current drive at the second harmonic in the WT-3 tokamak.
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WT-3 托卡马克中二次谐波的电子回旋电流驱动。
DOI：
10.1103/physrevlett.60.1033
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发表时间：
1988
影响因子：
8.6
通讯作者：
Terumichi
中科院分区：
文献类型：
--
作者：
Tanaka;Ando;Ogura;Ide;Iida;Oho;Ozaki;Iwamura;Yamazaki;Nakamura;Maekawa;Terumichi
二次谐波电子回旋电流驱动（ECCD）欧米茄.. = 2.. cap omega../ sub e/）在WT-3托卡马克装置上对两种类型的等离子体进行了验证。当在关闭欧姆加热（OH）功率之后将微波功率P/sub EC/注入到等离子体中时，等离子体电流仅由EC波维持并斜升。这里2.. cap omega../ sub e/EC驱动电流由2. cap omega../ sub e/ EC加热OH等离子体中存在的高能电子尾。此外，当P/sub EC/被注入到微波放电等离子体中时，2. cap omega../启动sub e/EC驱动的等离子体电流，并且2. cap omega../ sub 3/ ECCD等离子体的形成无需OH电源。2. cap omega../ sub e/ ECCD效率与at.相同数量级。欧米茄.. = .. cap omega../ sub e/，but the 3.. cap omega../与理论预测相反，没有产生sub e/EC驱动电流。
Electron cyclotron current drive (ECCD) at the second harmonic (..omega.. = 2..cap omega../sub e/) is demonstrated for two types of plasma in the WT-3 tokamak. When microwave power P/sub EC/ is injected into a plasma after Ohmic heating (OH) power is shut down, the plasma current is sustained and ramped up by the EC wave only. Here 2..cap omega../sub e/ EC-driven current is generated by 2..cap omega../sub e/ EC heating of an energetic electron tail existing in the OH plasma. Further, when P/sub EC/ is injected into a microwave discharge plasma, 2..cap omega../sub e/ EC-driven plasma current is started up and 2..cap omega../sub 3/ ECCD plasma is formed without OH power. The 2..cap omega../sub e/ ECCD efficiency is the same order as that at ..omega.. = ..cap omega../sub e/, but the 3..cap omega../sub e/ EC-driven current is not generated, in contrast with the theoretical prediction.