Electron Bernstein wave emission from an overdense plasma at the W7-AS stellarator

被引：69

作者：

Laqua, HP ^{[1
]}

Hartfuss, HJ ^{[1
]}

机构：

[1] EURATOM Assoc, Max Planck Inst Plasma Phys, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.81.2060

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Thermal electron Bernstein wave (EBW) radiation of an overdense plasma (n(e) > n(e,cutoff)) was measured with an oblique viewing angle at the W7-AS stellarator. The spectrum consists of a local cyclotron-emission parr and a nonlocal high-frequency part. Edge-temperature perturbations excited by carbon injection were used to demonstrate the relation between frequency and position of emission. Since for EBW's no density limit exists, the operation window of the electron-cyclotron-emission diagnostic can be extended to densities above the cutoff density.

引用

页码：2060 / 2063

页数：4

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