A new multi-tracer pellet injection for a simultaneous study of low- and mid/high-Z impurities in high-temperature plasmas

A new multi-tracer technique in the Tracer-Encapsulated Solid Pellet (TESPEL) method has been developed order to acquire simultaneously information about behaviors of various impurities, i.e., study concurrently low- and mid/high-Z impurities magnetically confined high-temperature plasmas. In this technique, an inorganic compound (for example, lithium titanate, Li2TiO3) is proposed be used as a tracer embedded core TESPEL, instead pure elements. The results proof-of-principle experiment clearly demonstrate applicability TESPEL for simultaneous