Abstract
A divertor reversed field pinch machine, TPE-2M ( R/ r=0.87 m/0.28 m), has been operated at AIST. The wall conditioning is one of key issues for the divertor study in this unique machine. Boronization on the shell inner surface (plasma-facing wall), titanium gettering on the vacuum wall and divertor plate surfaces and pulsed gas injection with glow-discharge pre-ionization are developed and applied successfully. They are indispensable to the analysis of divertor plasma behaviors and to the improved plasma operation
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