Edge electrostatic fluctuations and transport in a reversed-field pinch

Electrostatic fluctuations have been measured in a large reversed-field pinch, and are large (n${\mathrm{\ifmmode \tilde{}\else \~{}\fi{}}}_{\mathit{e}}$/n\ensuremath{\sim}20%--40%, T${\mathrm{\ifmmode \tilde{}\else \~{}\fi{}}}_{\mathit{e}}$/T\ensuremath{\sim}10%--25%). Frequency and wave-number spectra are broad (\ensuremath{\Delta}n\ensuremath{\sim}70--150, \ensuremath{\Delta}m\ensuremath{\sim}3--6), and differ from measured magnetic fluctuation spectra. The transport inferred from correlation measurements indicates that electrostatic fluctuations can account for significant particle losses, but contribute 15% to energy loss.