Hysteresis Relation Between Turbulence and Temperature Modulation During the Heat Pulse Propagation into a Magnetic Island in DIII-D

Overview

Journal Phys Rev Lett

Publisher American Physical Society

Specialty Biophysics

Date 2018 Jun 30

PMID 29956950

Citations 4

Authors

K Ida

T Kobayashi

M Ono

T E Evans

G R McKee

M E Austin

Affiliations

Soon will be listed here.

Abstract

The hysteresis relation between turbulence and temperature modulation during the heat pulse propagation into a magnetic island is studied for the first time in toroidal plasmas. Lissajous curves of the density fluctuation (n[over ˜]/n) and the electron temperature (T_{e}) modulation show that the (n[over ˜]/n) propagation is faster than the heat pulse propagation near the O point of the magnetic island. This faster n[over ˜]/n propagation is experimental evidence of the turbulence spreading from the X point to the O point of the magnetic island.

Citing Articles

Fast nondiffusive response of heat and turbulence pulse propagation.

Kenmochi N, Ida K, Tokuzawa T, Mizuno Y, Yasuhara R, Funaba H Sci Rep. 2024; 14(1):13006.

PMID: 38844607 PMC: 11156975. DOI: 10.1038/s41598-024-63788-0.

MHD instability dynamics and turbulence enhancement towards the plasma disruption at the HL-2A tokamak.

Li Y, Jiang M, Xu Y, Shi Z, Xu J, Liu Y Sci Rep. 2023; 13(1):4785.

PMID: 36959269 PMC: 10036549. DOI: 10.1038/s41598-023-31304-5.

Preceding propagation of turbulence pulses at avalanche events in a magnetically confined plasma.

Kenmochi N, Ida K, Tokuzawa T, Yasuhara R, Funaba H, Uehara H Sci Rep. 2022; 12(1):6979.

PMID: 35577787 PMC: 9110360. DOI: 10.1038/s41598-022-10499-z.

Effects of plasma turbulence on the nonlinear evolution of magnetic island in tokamak.

Choi M, Bardoczi L, Kwon J, Hahm T, Park H, Kim J Nat Commun. 2021; 12(1):375.

PMID: 33446658 PMC: 7809268. DOI: 10.1038/s41467-020-20652-9.