An evaluation of kinetic effects in the DIII-D divertor
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چکیده
منابع مشابه
An evaluation of kinetic eects in the DIII-D divertor
Under certain conditions, high temperature electrons diusing across the separatrix near the midplane can propagate to the divertor without collision and produce a high energy tail in the electron distribution function near the separatrix. We evaluate a kinetic criterion along the ®eld using measurements from divertor Thomson scattering and compare temperature measurements from target plate Lan...
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Measurements of the parallel Mach number of background plasma in the DIII-D tokamak divertor @M. A. Mahdavi et al. in Proceedings, 16th International Conference, Montreal, 1996 ~International Atomic Energy Agency, Vienna, 1997! Vol. I, p. 397# were performed using a fast scanning Mach probe. The parallel particle flow shows evidence of complex behavior such as reverse flow, i.e., flow away from...
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DIVERTOR PLASMA PHYSICS EXPERIMENTS ON THE DIII–D TOKAMAK. In this paper we present an overview of the results and conclusions of our most recent divertor physics and development work. Using an array of new divertor diagnostics we have measured the plasma parameters over the entire divertor volume and gained new insights into several divertor physics issues. We present direct experimental evide...
متن کاملAn experimental comparison of gross and net erosion of Mo in the DIII-D divertor
Experimental observation of net erosion of molybdenum being significantly reduced compared to gross erosion in the divertor of DIII-D is reported for well-controlled plasma conditions. For the first time, gross erosion rates were measured by both spectroscopic and non-spectroscopic methods. In one experiment a net erosion rate of 0.73 ± 0.03 nm/s was measured using ion beam analysis (IBA) of a ...
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ژورنال
عنوان ژورنال: Journal of Nuclear Materials
سال: 1999
ISSN: 0022-3115
DOI: 10.1016/s0022-3115(98)00556-x