Fusion Science and Technology / Volume 4 / Number 2P2 / September 1983 / Pages 141-145
Plasma Engineering / dx.doi.org/10.13182/FST83-A22858
Articles are hosted by Taylor and Francis Online.
The temperature profiles resulting from plasma operation on the PDX vertical, large area, inner toroidal limiter have been measured during both ohmic and neutral beam heated discharges using a scanning infrared camera. An asymmetric double peaked temperature profile is seen after neutral beam heated discharges. Disruptions in ohmically heated discharges are found to be preceded by a single peaked deposition and succeeded by a initially symmetric double peaked deposition. The results were compared with the Schmidt model for scrape-off at a toroidal limiter and it was found that the measured double peaked temperature profiles yielded scrape-off lengths consistent with previous measurements.