利用准光学谐振腔快速实时诊断等离子体的新方法  

A novel method of fast real-time plasma diagnostic with Fabry-Perot resonator

作　　者：陶冰洁[1] 谢冰[1] 李恩[1] 

机构地区：[1]电子科技大学,成都611731

出　　处：《核聚变与等离子体物理》2014年第2期182-186,共5页Nuclear Fusion and Plasma Physics

基　　金：中央高校基本科研业务费专项资金资助(2672011ZYGXJ017)

摘　　要：对准光学谐振腔诊断等离子体的传统诊断方法进行了改进，提出一种可用于诊断瞬态等离子体的实时诊断方法。通过实验证明，矢量网络分析仪点频测试（CW Sweep）对信号相位变化的测量速度足够快，可以跟上等离子体鞘套和尾迹的变化速度，因此利用该方法诊断等离子体鞘套和尾迹是可行的。通过对诊断系统性能的评估，表明诊断装置具有较高的实时性，对等离子体电子浓度有较宽的测量范围，测量范围可达10-1-1015m-3。Improvement of the traditional plasma diagnostic with Fabry-Perot cavity was made. A method that can diagnose the rapidly varying plasma was put forward. The experiment proved that the velocity of measuring the variation of signal phase by the vector network analyzer is fast enough when it works in CW sweep mode, and is comparable to the velocity of plasma sheath and wake variation. So the method can be adopted to diagnose plasma sheath and wake. The performance of the novel diagnostic device was evaluated. The evaluation shows that the device has good real-time performance and the measurable plasma electron density varies between 10-1-1015m-3 which is a wide range.

关 键 词：准光学谐振腔 鞘套和尾迹 实时诊断 等离子体诊断 

分 类 号：TL652[核科学技术—核技术及应用]