Development and initial operation of the pellet charge exchange diagnostic on LHD heliotron
Development and initial operation of the pellet charge exchange diagnostic on LHD heliotron
复制标题
LHD 日光管上颗粒电荷交换诊断的开发和初步运行
DOI：
10.1063/1.1534912
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发表时间：
2003
影响因子：
1.6
通讯作者：
V. Sergeev
中科院分区：
文献类型：
--
作者：
P. Goncharov;T. Saida;N. Tamura;T. Ozaki;M. Sasao;M. Isobe;S. Sudo;K. Khlopenkov;I. LhdExperimentalGroups;A. Krasilnikov;V. Sergeev
在一个大型螺旋装置上，已经开发并测试了一种主动红细胞诊断方法，该方法具有人为创建的用于电荷交换过程的局部目标。该诊断系统结合了杂质颗粒注入器和基于天然金刚石探测器的能量分析仪。当球团穿过等离子体柱时，在球团烧蚀云中和的高能粒子被探测到。时间分辨的原子能谱转换成沿球团轨迹的局部测量值。从而得到了环面非轴对称构型的局部参数。给出了诊断的物理基础、数据解释和技术描述。描述了提供所需空间分辨率所需的分析仪几何、电子和数据采集的要求。初步实验结果与其他诊断数据一起提出。实验范围，与多弦无源电荷交换测量的可能比较…
An active corpuscular diagnostic with an artificially created localized target for the charge-exchange process has been developed and tested on a large helical device. The diagnostic is a combination of an impurity pellet injector and a natural diamond detector-based energy analyzer. High-energy particles neutralized at the pellet ablation cloud are detected while the pellet travels across the plasma column. Time-resolved atomic energy spectra translate into local measurements along the pellet trajectory. Thus, local parameters are obtained in the toroidally non-axis-symmetrical configuration. Physical basis, data interpretation, and the technical description of the diagnostic are given. The requirements to the analyzer geometry, electronics, and data acquisition needed to provide the desired spatial resolution are described. The initial experimental results are presented along with the other diagnostic data. The scope of experiments, possible comparisons with multichord passive charge-exchange measuremen...