Development of Thomson scattering diagnostics for the large helical device
Development of Thomson scattering diagnostics for the large helical device
复制标题
大型螺旋装置汤姆逊散射诊断技术的开发
DOI：
10.1016/s0920-3796(96)00689-8
复制
发表时间：
1997
影响因子：
1.7
通讯作者：
K. Toi
中科院分区：
文献类型：
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作者：
K. Narihara;K. Yamauchi;I. Yamada;T. Minami;K. Adachi;A. Ejiri;Y. Hamada;K. Ida;H. Iguchi;K. Kawahata;T. Ozaki;K. Toi
汤姆逊散射;介绍了大螺旋装置三区域的诊断系统。(1)斜背散射汤姆逊散射系统给出了电子温度（Te）和密度（ne）沿中平面主半径的完整分布图，空间分辨率为1.5 ~ 4.0 cm。一个压电驱动的反射镜是动态定向的，这样从十个50赫兹重复频率Nd:YAG激光器的光束沿着一个主要半径传播一个共同的路径，每2毫秒给出一个和一个轮廓。(2)一个腔汤姆森散射系统将测量沿光束在光学腔内左右离轴传播的二维Teand新剖面。这将诊断外缘区域的岛状结构。(3)光纤汤姆逊散射系统，激光由光纤引导，可以自由移动，方便地探测转移的等离子体。
Thomson scattering; systems diagnosing three regions of the large helical device (LHD) are presented. (1) An obliquely back-scattered Thomson scattering system gives full profiles of electron temperature (Te) and density (ne) along the major radius on the mid-plane with a spatial resolution of 1.5–4.0 cm. A piezo-actuated mirror is dynamically oriented so that the beams from ten 50 Hz repetition rate Nd:YAG lasers propagate a common path along a major radius, giving Teand ne profiles every 2 ms. (2) A cavity Thomson scattering system will measure two-dimensional Teand neprofiles along the laser beam propagating off-axially right and left in an optical cavity. This will diagnose the island structures in the outer edge region. (3) A fiber Thomson scattering system, in which laser light is guided by an optical fiber, is freely movable and conveniently used to probe the diverted plasma.
O.Motojima：《超导大型螺旋装置的工程设计研究》核聚变。
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