Resonant and nonresonant electron cyclotron heating at densities above the plasma cutoff by O-X-B mode conversion at the W7-As stellarator
Resonant and nonresonant electron cyclotron heating at densities above the plasma cutoff by O-X-B mode conversion at the W7-As stellarator
复制标题
DOI：
10.1103/physrevlett.78.3467
复制
发表时间：
1997-05-05
影响因子：
8.6
通讯作者：
Laqua, H
中科院分区：
文献类型：
--
作者：
Laqua, HP;Erckmann, V;Laqua, H
在W7-AS仿星器上，通过从o波到x波，最后到电子伯恩斯坦（O-X-B）波的模式转换加热，研究了电子回旋加速器加热超出等离子体截止密度的实验可达等离子体密度的扩展，并消除了对共振磁场的限制。除了加热效应外，首次发现了两种模式转换步骤的明确证据。
The extension of the experimentally accessible plasma densities with electron cyclotron heating beyond the plasma cutoff density and the removal of the restriction to a resonant magnetic field, both via mode conversion heating from an O-wave to an X-wave and, finally, to an electron Bernstein (O-X-B) wave, was investigated and successfully demonstrated at the W7-AS stellarator. In addition to the heating effect, clear evidence for both mode conversion steps was detected for the first time.