Direct Measurement of Plasma Space Potential on Elmo Bumpy Torus
P.L. Colestock, K. A. Connor, R. L. Hickok, R. A. Dandl
Abstract
P.L. Colestock, K. A. Connor, R. L. Hickok, R. A. Dandl
Abstract
A heavy-ion-beam probe has been used to measure the space-potential distribution on the Elmo bumpy torus. The results indicate that under optimum confinement conditions the ambipolar electric field is nearly axisymmetric, points radially inward, and is of sufficient magnitude to dominate the ion poloidal drifts.
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A heavy-ion-beam probe has been used to measure the space-potential distribution on the Elmo bumpy torus. The results indicate that under optimum confinement conditions the ambipolar electric field is nearly axisymmetric, points radially inward, and is of sufficient magnitude to dominate the ion poloidal drifts.
Key concepts: Ambipolar diffusion, Torus, Physics, Plasma, Electric field, Space (punctuation), Ion, Atomic physics