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COMPARISON STUDY OF 2D IMAGES OF TEMPERATURE FLUCTUATIONS DURING SAWTOOTH OSCILLATION WITH THEORETICAL MODELS SCIE SCOPUS

Title
COMPARISON STUDY OF 2D IMAGES OF TEMPERATURE FLUCTUATIONS DURING SAWTOOTH OSCILLATION WITH THEORETICAL MODELS
Authors
Park, HKDonne, AJHLuhmann, NCClassen, IGJDomier, CWMazzucato, EMunsat, Tvan de Pol, MJVXia, Z
Date Issued
2006-05-19
Publisher
AMERICAN PHYSICAL SOC
Abstract
High temporal and spatial resolution two-dimensional (2D) images of electron temperature fluctuations were employed to study the sawtooth oscillation in the Toroidal Experiment for Technically Oriented Research tokamak plasmas. The 2D images are directly compared with the expected 2D patterns of the plasma pressure (or electron temperature) from various theoretical models. The observed experimental 2D images are only partially in agreement with the expected patterns from each model: The image of the initial reconnection process is similar to that of the ballooning mode model. The intermediate and final stages of the reconnection process resemble those of the full reconnection model. The time evolution of the images of the hot spot or island is partially consistent to those from the full reconnection model but is not consistent with those from the quasi-interchange model.
URI
https://oasis.postech.ac.kr/handle/2014.oak/12438
DOI
10.1103/PhysRevLett.96.195004
ISSN
0031-9007
Article Type
Article
Citation
PHYSICAL REVIEW LETTERS, vol. 96, no. 19, 2006-05-19
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