Gupta Deepak K, Nations Marcel, Sweeney James, Aviles Juan, Leinweber Hannes, Marshall Ryan S
TAE Technologies, Inc., 19631 Pauling, Foothill Ranch, California 92610, USA.
Rev Sci Instrum. 2021 Jul 1;92(7):073508. doi: 10.1063/5.0043826.
A main ion charge exchange recombination spectroscopy (mChERS) diagnostic has been developed to measure the velocity and temperature of the main deuterium ions in the C-2W (also called Norman) field-reversed configuration (FRC) device. A modulated diagnostic neutral beam (DNB) of hydrogen with 40 keV full energy and a nominal current of 8.5 A provides the charge exchange signal. The DNB can achieve a fast modulation frequency of up to 10 kHz, a rare attribute to find on other fusion devices, which defines the time resolution of mChERS. Currently, the mChERS diagnostic provides simultaneous measurements at five spatial locations in the FRC plasma using a high-speed camera. The design and capabilities of the mChERS system are presented along with first experimental data.
已开发出一种主离子电荷交换复合光谱（mChERS）诊断方法，用于测量C-2W（也称为诺曼）场反转配置（FRC）装置中主氘离子的速度和温度。一束全能量为40 keV、标称电流为8.5 A的调制诊断中性氢束提供电荷交换信号。该诊断中性束可实现高达10 kHz的快速调制频率，这在其他聚变装置上很少见，它决定了mChERS的时间分辨率。目前，mChERS诊断方法使用高速相机在FRC等离子体的五个空间位置进行同步测量。介绍了mChERS系统的设计和性能以及首批实验数据。
