[1I01-06] Tritium Migration and Measurement

11:10 AM - 11:25 AM JST(2:10 AM - 2:25 AM UTC)

[1I05] Study on depth profiles of tritium in the LHD plasma-facing wall using a sputtering treatment

*Suguru MASUZAKI^1,2, Mingzhong ZhaoZhao¹, Miyuki YAJIMA^1,2, Masayuki TOKITANI^1,2, Gen MOTOJIMA^1,2 (1. NIFS, 2. SOKENDAI)

Keywords:

tritium depth profile,LHD,sputtering treatment,glow discharge optical emission spectroscopy

In deuterium plasma experiments conducted at LHD, fast tritons produced by the DD reactions impinged on the plasma-facing wall. Tritium depth profiles in the plasma-facing wall and in material samples placed on the wall were measured after the LHD experiments using a sputtering treatment with a glow discharge optical emission spectrometer. The results will be presented.