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Title: First Observation of the High Field Side Sawtooth Crash and Heat Transfer during Driven Reconnection Processes in Magnetically Confined Plasmas

Abstract

High resolution (temporal and spatial), two-dimensional images of electron temperature fluctuations during sawtooth oscillations were employed to study driven reconnection processes in magnetically confined toroidal plasmas. The combination of kink and local pressure driven instabilities leads to an "X-point" reconnection process that is localized in the toroidal and poloidal planes. The reconnection is not always confined to the magnetic surfaces with minimum energy. The heat transport process from the core is demonstrated to be highly collective rather than stochastic.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
934606
Report Number(s):
PPPL-4135
TRN: US0803877
DOE Contract Number:  
DE-AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Related Information: Published in Phys. Rev. Lett. 96, 195003 (2006)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ELECTRON TEMPERATURE; FLUCTUATIONS; HEAT TRANSFER; MAGNETIC SURFACES; RESOLUTION; SAWTOOTH OSCILLATIONS; TRANSPORT; FUSION TEST REACTOR; TOKAMAK; TOMOGRAPHY; RECONNECTION; JET

Citation Formats

Park, HK, Luhmann, NC, Donne, AJH, Classen, IGJ, Domier, CW, Mazzucato, E, Munsat, T, van de Pol, MJ, and Xia, Z. First Observation of the High Field Side Sawtooth Crash and Heat Transfer during Driven Reconnection Processes in Magnetically Confined Plasmas. United States: N. p., 2005. Web. doi:10.2172/934606.
Park, HK, Luhmann, NC, Donne, AJH, Classen, IGJ, Domier, CW, Mazzucato, E, Munsat, T, van de Pol, MJ, & Xia, Z. First Observation of the High Field Side Sawtooth Crash and Heat Transfer during Driven Reconnection Processes in Magnetically Confined Plasmas. United States. doi:10.2172/934606.
Park, HK, Luhmann, NC, Donne, AJH, Classen, IGJ, Domier, CW, Mazzucato, E, Munsat, T, van de Pol, MJ, and Xia, Z. Thu . "First Observation of the High Field Side Sawtooth Crash and Heat Transfer during Driven Reconnection Processes in Magnetically Confined Plasmas". United States. doi:10.2172/934606. https://www.osti.gov/servlets/purl/934606.
@article{osti_934606,
title = {First Observation of the High Field Side Sawtooth Crash and Heat Transfer during Driven Reconnection Processes in Magnetically Confined Plasmas},
author = {Park, HK and Luhmann, NC and Donne, AJH and Classen, IGJ and Domier, CW and Mazzucato, E and Munsat, T and van de Pol, MJ and Xia, Z},
abstractNote = {High resolution (temporal and spatial), two-dimensional images of electron temperature fluctuations during sawtooth oscillations were employed to study driven reconnection processes in magnetically confined toroidal plasmas. The combination of kink and local pressure driven instabilities leads to an "X-point" reconnection process that is localized in the toroidal and poloidal planes. The reconnection is not always confined to the magnetic surfaces with minimum energy. The heat transport process from the core is demonstrated to be highly collective rather than stochastic.},
doi = {10.2172/934606},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Dec 01 00:00:00 EST 2005},
month = {Thu Dec 01 00:00:00 EST 2005}
}

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