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Title: The dynamics of core temperature fluctuations during sawtooth oscillations on TEXT-U

Abstract

Core electron temperature fluctuations are measured in a tokamak plasma where some degree of time resolution is achieved. There is a strong correlation between the turbulence level and the phase of the sawtooth oscillation. A global linear relationship between the temperature fluctuation amplitude and the electron temperature gradient scale length is found. The enhancement in fluctuations at the sawtooth crash is correlated to a steepening of the electron temperature gradient created as the sawtooth heat pulse propagates outward.

Authors:
;  [1]
  1. Auburn Univ., AL (United States). Dept. of Physics
Publication Date:
Research Org.:
Texas Univ., Austin, TX (United States). Fusion Research Center
Sponsoring Org.:
USDOE Office of Energy Research, Washington, DC (United States)
OSTI Identifier:
468600
Report Number(s):
DOE/ER/54241-144; FRCR-463
ON: DE97004808; TRN: 97:010170
DOE Contract Number:  
FG03-94ER54241
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 3 May 1995
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; TEXT DEVICES; ELECTRON TEMPERATURE; SAWTOOTH OSCILLATIONS; HEAT TRANSFER; CHARGED-PARTICLE TRANSPORT; TURBULENCE; TEMPERATURE GRADIENTS

Citation Formats

Watts, C, and Gandy, R F. The dynamics of core temperature fluctuations during sawtooth oscillations on TEXT-U. United States: N. p., 1995. Web. doi:10.2172/468600.
Watts, C, & Gandy, R F. The dynamics of core temperature fluctuations during sawtooth oscillations on TEXT-U. United States. doi:10.2172/468600.
Watts, C, and Gandy, R F. Wed . "The dynamics of core temperature fluctuations during sawtooth oscillations on TEXT-U". United States. doi:10.2172/468600. https://www.osti.gov/servlets/purl/468600.
@article{osti_468600,
title = {The dynamics of core temperature fluctuations during sawtooth oscillations on TEXT-U},
author = {Watts, C and Gandy, R F},
abstractNote = {Core electron temperature fluctuations are measured in a tokamak plasma where some degree of time resolution is achieved. There is a strong correlation between the turbulence level and the phase of the sawtooth oscillation. A global linear relationship between the temperature fluctuation amplitude and the electron temperature gradient scale length is found. The enhancement in fluctuations at the sawtooth crash is correlated to a steepening of the electron temperature gradient created as the sawtooth heat pulse propagates outward.},
doi = {10.2172/468600},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {5}
}