Abstract
A four-channel triple-probe and magnetic-probe array, a complex probe which consists of three types of probes and two eight-channel magnetic-probe (poloidal and toroidal) arrays, has been installed in the revised field pinch University of Tokyo experiment (REPUTE-1) reversed field pinch (RFP) device. Mean and fluctuation parts of plasma parameters, including the three components of magnetic fields, three components of electric fields, electron density, electron temperature, and space potential, are measured in 0.5a≲r≤a region. The triple-probe method and the electric field measurement are described in detail, and effects due to the fast electrons, etc., are discussed. Some experimental examples obtained in the REPUTE-1 RFP plasma are given, and the detailed results will be published elsewhere.
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