Plasma Relaxation in a Reversed Field Pinch Experiment
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Abstract
The time evolutions for the magnetic energy Um, the magnetic helicity K, and the total helicity Ktotal with high pinch factor operation of reversed field pinch experiments on S WIP-RFP device are quantitatively calculated. It is shown that Um and K increase with increasing plasma current but Ktotal decreases. The results are analyzed and valuable information for the operation is obtained.
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