- Conference date: 5-8 October 2004
- Location: Toki (Japan)
The Tracer‐Encapsulated Solid PELlet (TESPEL) injection is one of the simplest new ideas to study the impurity confinement and other plasma properties. The special features of this method are: (a) local deposition inside the plasma, (b) precise knowledge of the deposited tracer amount, (c) wide selection of tracer materials. The achievements of the multi‐functional diagnostics using TESPEL injection on LHD are to measure: (a) impurity transport properties, (b) heat diffusivity, (c) particle flow features in and out of the magnetic island, and (d) fast neutral particle fluxes.
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