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Phys Rev Lett. 2017 Nov 03;119(18):185001. doi: 10.1103/PhysRevLett.119.185001. Epub 2017 Oct 30.

Observation of Electron Bernstein Wave Heating in a Reversed Field Pinch.

Physical review letters

A H Seltzman, J K Anderson, S J Diem, J A Goetz, C B Forest

Affiliations

  1. Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA.
  2. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

PMID: 29219560 DOI: 10.1103/PhysRevLett.119.185001

Abstract

The first observation of rf heating in a reversed field pinch (RFP) using the electron Bernstein wave (EBW) is demonstrated on the Madison Symmetric Torus. Propagation across and heating in a stochastic magnetic field is observed. Novel techniques are required to measure the suprathermal electron tail generated by EBW heating in the presence of intense Ohmic heating. rf-heated electrons directly probe the edge transport properties in the RFP; measured loss rates imply a large noncollisional radial diffusivity.

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