A Compact Neutral-Particle Analyzer for Plasma Diagnostics
A Compact Neutral-Particle Analyzer for Plasma Diagnostics
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用于等离子体诊断的紧凑型中性粒子分析仪
DOI：
10.1023/b:inet.0000025204.01783.1a
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发表时间：
2004
影响因子：
0.6
通讯作者：
S. Petrov
中科院分区：
文献类型：
--
作者：
F. Chernyshev;V. Afanasyev;A. Dech;M. Kick;A. Kislyakov;S. S. Kozlovskii;A. Kreter;M. Mironov;M. Petrov;S. Petrov
本文介绍了俄罗斯科学院IOFE物理技术研究所研制的新型紧凑型中性粒子分析仪(CNPA)。该装置用作质谱仪和能谱仪，用于同时分析等离子体发射的氢(0.8-80keV)和氢(0.66-36keV)电荷交换通量。用一种薄的(100？)类金刚石箔来代替传统的气体剥离方法。分析的磁场是由两个功率为1T的NdFeB永磁体代替传统的电磁铁产生的。这两项创新使分析仪的尺寸(169×302×326 mm)和重量(42.5公斤)大大减小。为了提高探测效率，该装置对被剥离箔散射的离子使用了额外的静电加速，并提供了具有两个坐标聚焦的磁场配置。该分析仪已经在德国加兴的马克斯·普朗克等离子体物理研究所的温德尔斯坦7-AS恒星角仪实验中使用。描述了使用该分析仪进行的第一次测量的结果。
A new compact neutral-particle analyzer (CNPA) developed at the Ioffe Physicotechnical Institute, Russian Academy of Sciences, is described. The device is used as a mass and energy spectrometer for the simultaneous analysis of the hydrogen (0.8–80 keV) and deuterium (0.66–36 keV) charge-exchange fluxes emitted by a plasma. A thin (100 Å) diamond-like foil is used for stripping instead of the conventional method of stripping in gas. The analyzing magnetic field is produced by two powerful (1 T) permanent NdFeB magnets instead of conventional electromagnets. These two innovations have made it possible to decrease considerably the size (169 × 302 × 326 mm) and weight (42.5 kg) of the analyzer. To increase detection efficiency, the device uses additional electrostatic acceleration of ions scattered by the stripping foil and provides a magnetic field configuration with two-coordinate focusing. The analyzer has been used in experiments on the Wendelstein 7-AS stellarator at the Max Planck Institute of Plasma Physics (Garching, Germany). The results of the first measurements performed using this analyzer are described.