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Current profile control via a plasma gun array in the rotating wall machine
| Author: | Hannum D.A. |
| Coauthor: | W. Bergerson, G. Fiksel, C. B. Forest, R. D. Kendrick |
| Institution : | UW-Madison |
| Abstract text: | The rotating wall machine is a linear screw-pinch built to study the role of different wall boundary conditions on the Resistive Wall Mode (RWM). Since the RWM is affected by details of the current profile, an array of nineteen plasma guns arranged in a hex or \"honeycomb\" pattern has been constructed to provide a wide variety of q-profiles in the experiment. Each gun supplies 1 kA of current, which terminates on an anode disc at the opposite end of the plasma column. The firing pattern of the guns controls the current profile of the plasma. Initial results on the success of this array will be presented. This work is supported by DoE contract DE-FG02-00ER54603. |
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