title: A new application of retarding field analyzer for the electron and ion temperature measurement on the J-TEXT tokamak.
abstract: 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.
authors.affiliation: Institute of Fusion and Plasma Research, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Hai
authors.initials: H
authors.lastname: Liu
authors.affiliation: Institute of Fusion and Plasma Research, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: Chen
authors.affiliation: Institute of Fusion and Plasma Research, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Ge
authors.initials: G
authors.lastname: Zhuang
authors.affiliation: Institute of Fusion and Plasma Research, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Zhongyong
authors.initials: Z
authors.lastname: Chen
authors.affiliation: Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon S7N 5E2, Canada.
authors.forename: Chijin
authors.initials: C
authors.lastname: Xiao