Drs. Tetsutarou Oishi and Yasuko Kawamoto from NIFS visited ASIPP and discussed spectroscopic diagnostics for the edge plasmas in EAST and LHD with Drs. Fang Ding and Zhenhua Hu from Sep. 17 to Sep. 20. A vacuum port and spectrometers used for studies on plasma-surface interaction in EAST were also explained by F. Ding and …