Edge localized mode activity as a limit cycle in tokamak plasmas

Sanae-I. Itoh; Kimitaka Itoh; Atsushi Fukuyama; Yukitoshi Miura

doi:10.1103/PhysRevLett.67.2485

Edge localized mode activity as a limit cycle in tokamak plasmas

Sanae-I. Itoh, Kimitaka Itoh, Atsushi Fukuyama, and Yukitoshi Miura

Phys. Rev. Lett. 67, 2485 – Published 28 October 1991

Abstract

A model of edge localized modes in tokamak plasmas is presented. A limit-cycle solution is found in the transport equation (time-dependent Ginzburg-Landau type), which has a hysteresis curve for the gradient versus the flux. A periodic oscillation of the particle outflux and an L-H intermediate state are predicted near the L-H transition boundary. A mesophase in spatial structure appears near the edge.