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

HK Park | Zendy; NC Luhmann | Zendy; AJH Donne | Zendy; I. G. J. Classen | Zendy; CW Domier | Zendy; E. Mazzucato | Zendy; T. Munsat | Zendy; M. van de Pol | Zendy; Zhong Xia | Zendy

Open Access

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

Author(s) -

HK Park,

NC Luhmann,

AJH Donne,

I. G. J. Classen,

CW Domier,

E. Mazzucato,

T. Munsat,

M. van de Pol,

Zhong Xia

Publication year - 2005

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/934606

Subject(s) - sawtooth wave , magnetic reconnection , physics , plasma , toroid , core (optical fiber) , mechanics , optics , nuclear physics , computer science , computer vision

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

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