Development of a New High-Frequency B-Dot Probes to Detect Electromagnetic Characteristics of Helicon Wave Antenna in the Near Field
Development of a New High-Frequency B-Dot Probes to Detect Electromagnetic Characteristics of Helicon Wave Antenna in the Near Field
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DOI：
10.1109/tim.2023.3334340
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发表时间：
2024
影响因子：
5.6
通讯作者：
Zhi Li;Lingfeng Lu;Lin Nie;Lei Chang;Zhide Zeng;Huaiqing Zhang
中科院分区：
文献类型：
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作者：
Zhi Li;Lingfeng Lu;Lin Nie;Lei Chang;Zhide Zeng;Huaiqing Zhang
一种新的射频（RF）诊断，结合B点探针与静电探针阵列，已被安装在线性实验先进设备（LEAD）的RF波传播和等离子体参数的特征。它可以直观地反映射频波-等离子体的耦合特性，为波动物理的实验研究提供必要的参数信息。开发了探头的信号采集系统，考虑了电磁兼容性，消除了射频干扰，保证了探头数据的可靠性。利用B点探针测量了电极导线天线近场磁场，结果与COMSOL仿真结果吻合，验证了测量结果的正确性。此外，从静电探针的数据的可靠性进行了验证，通过与其他独立的朗缪尔探针测量的数据进行比较。
A new radio frequency (RF) diagnostic, combined B-dot probe with an electrostatic probe array, has been installed on the linear experimental advanced device (LEAD) to characterize the RF wave propagation and plasma parameters. It can directly indicate the RF wave–plasma coupling properties and provide the necessary parametric information for experimental studies of wave physics. The probe’s signal acquisition system has been developed, taking the consideration of electromagnetic compatibility to eliminate RF interference to ensure the reliability of the probe data. The measured magnetic field in the antenna near field in LEAD by B-dot probe coincides with the COMSOL simulation, which validates the measurement. Moreover, the reliability of the data from the electrostatic probe was verified by making a comparison with data measured by other independent Langmuir probes.