Electron Bernstein Wave Heating in Heliotron Systems
Electron Bernstein Wave Heating in Heliotron Systems
复制标题
日光管系统中的电子伯恩斯坦波加热
DOI：
10.1142/9789812705082_0047
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
T. Obiki
中科院分区：
文献类型：
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作者：
K. Nagasaki;N. Yanagi;H. Shidara;F. Sano;K. Kondo;T. Mizuuchi;H. Okada;M. Nakasuga;S. Besshou;Y. Manabe;W. Ang;H. Kawazome;S. Maeno;K. Tomiyama;H. Tsuru;T. Takamiya;M. Takeda;T. Obiki
本文从理论和实验两方面研究了电子伯恩斯坦波加热在日光加速器组态下的作用。提出了一种考虑三维磁场结构的普通(O)-特殊(X)-电子伯恩斯坦(B)和X-B转换加热的射线追踪代码。在O-X-B加热过程中，由于磁场的不均匀性导致平行折射率较高，沉积条件发生强烈的多普勒位移。由于特殊的磁场结构，从低场侧发射慢x模式也可能产生慢X-B加热。螺旋轴heliotron J在核心区不存在电磁共振的情况下，发生了有效的加热。所获得的存储能量与传统的二次谐波ECH相当。对这种有效加热的一种可能的解释是使用缓慢的X-B模式转换过程。
Electron Bernstein wave heating is studied theoretically and experimentally in heliotron configurations. A ray tracing code for ordinary (O)-extraordinary (X)-electron Bernstein (B) and X-B conversion heating has been developed, in which the three-dimensional magnetic field structure is taken into account. In the O-X-B heating, the deposition condition is strongly Doppler-shifted because of the high parallel refractive index caused by the inhomogeneity of the magnetic field. The slow X-B heating is also possible by launching the slow X-mode from the low field side because of the peculiar magnetic field structure. An effective heating has been observed in the helical-axis heliotron device, Heliotron J, when no electromagnetic resonance exists in the core region. The obtained stored energy is comparable with that in the conventional second harmonic ECH. A possible explanation for this effective heating is presented using the slow X-B mode conversion process.