Schematic view of configuration of TESPEL.
Schematic view of the whole TESPEL diagnostic system.
TESPEL production procedure: (a) status of the initial polystyrene ball, (b) status of the drilled polystyrene ball, (c) status of the titanium tracer balls inside the drilled polystyrene ball, and (d) status of the completed TESPEL with the closed hole.
TESPEL storage disk.
TESPEL injection system with function of differential pumping.
Flow chart of TESPEL injection system.
The vacuum ultraviolet spectroscopic data before (t = 3.65 s) and after (t = 3.85 s) injection of a TESPEL with triple tracers: V, Mn, and Co. The intensity I (arbitrary unit) versus the wavelength (nm). The time resolution is 50 ms. The base of the spectra before TESPEL injection is shifted downward to avoid overlapping. The TESPEL is injected at t = 3.69 s. Li-like line emissions and also the other lines from these three tracers are clearly observed after TESPEL injection, while these are negligible before TESPEL injection. As Fe is an intrinsic impurity, the Fe line (Fe XXIV) intensity is unchanged before and after TESPEL injection.
Guide tube dimensions.
Tracer atoms used so far in the experiment.
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