An Energy Recovering Divertor Based on Amplification of Alfven Waves
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A new technique for direct power extraction from a fusion plasma is presented. This technique is designed to operate within a tokamak divertor channel without requiring plasma to cross the toroidal field coils, and is therefore termed an energy recovering divertor. The proposed technique is based on amplification of Alfven waves by ion kinetic energy, using a mechanism analogous to a free-electron laser. Presented here are a detailed description of the technique and analytic calculations of its basic mode of operation.
KeywordsPlasma direct converter Divertor Tokamak Alfven waves Ponderomotive force
This work was supported by the U.S. Department of Energy (DOE) under grant DE-FG02-97ER54392. Such support does not constitute an endorsement by DOE of the views expressed herein.
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