Internal toroidal field measurements on the helicity injected tokamak using the transient internal probe

Abstract

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A magneto-optic probe for magnetic fluctuation measurements

“…Other magnetic fluctuation measurement techniques, such as laser polarimetry, have been successfully employed in large-scale magnetic fusion plasma experiments, but with considerable cost and infrastructure requirements. 2 A fundamental problem with conventional B-dot probes is their susceptibility to capacitive pickup, especially in rf generated plasmas where large electrostatic fluctuations, on the order of 100 V, are typical. 3 A variety of electrostatic pickup compensation methods have been developed.…”