Understanding hydrogen plasma processes based on the diagnostic results of 2.45 GHz ECRIS at Peking University

Wu Wen-Bin¹, Ren Hai-Tao^{1, †}, Peng Shi-Xiang¹, Xu Yuan¹, Wen Jia-Mei¹, Sun Jiang¹, Zhang Ai-Lin^{1, 2}, Zhang Tao¹, Zhang Jing-Feng¹, Chen Jia-Er^{1, 2}

(color online) The electron density as a function of the electron temperature and ratio of emission rate coefficients for He line at 587.56 nm to 706.52 nm.