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Updated: Jul 13, 2026

AC Electrokinetic Phenomena Generated by Microelectrode Structures
Published on: July 29, 2008
Core electrostatic fluctuations and particle transport in a reversed-field pinch
J Lei1, P M Schoch, D R Demers
1ECSE Department, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
Abstract:
Potential and electron-density fluctuation profiles, phi(r) and ñ(e)(r)/n(e), are measured for the first time in the core of a reversed-field pinch using a heavy ion beam probe. It is found that the fluctuations are broadband and correlated with the core resonant m/n=1/6 tearing mode. The electrostatic-fluctuation-induced particle transport in the core of standard RFP plasmas, estimated from measured <ñ(e)phi>, is small compared to the total particle flux. Measurements of fluctuations and estimates of fluctuation induced particle transport in improved confinement RFP discharges are also presented.
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