A new application of retarding field analyzer for the electron and ion temperature measurement on the J-TEXT tokamak

作者:Liu, Hai; Chen, Zhipeng*; Zhuang, Ge; Chen, Zhongyong; Xiao, Chijin
来源:Review of Scientific Instruments, 2016, 87(11): 11D444.
DOI:10.1063/1.4964441

摘要

A new application of retarding field analyzer for the electron and ion temperature measurement (named eiRFA) has been realized on the J-TEXT tokamak. A novel bias arrangement is adopted for the eiRFA to implement the simultaneous measurement of the electron and ion temperatures in the scrape-off layer, as well as the floating potential, plasma space potential, and sheath potential drop coefficient. It shows that the temperatures measured by eiRFA are reasonable and the plasma space potential obtained by two means is in good self-consistent. Moreover, the calculation of electron temperature can be modified using the eiRFA. Published by AIP Publishing.