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

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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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Park, HK; Luhmann, NC; Donne, AJH; Classen, IGJ; Domier, CW; Mazzucato, E et al. December 1, 2005.

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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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576 kB

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  • Related Information: Published in Phys. Rev. Lett. 96, 195003 (2006)

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  • Report No.: PPPL-4135
  • Grant Number: DE-AC02-76CH03073
  • DOI: 10.2172/934606 | External Link
  • Office of Scientific & Technical Information Report Number: 934606
  • Archival Resource Key: ark:/67531/metadc894898

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  • December 1, 2005

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 18, 2016, 10:01 p.m.

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Park, HK; Luhmann, NC; Donne, AJH; Classen, IGJ; Domier, CW; Mazzucato, E et al. First Observation of the High Field Side Sawtooth Crash and Heat Transfer during Driven Reconnection Processes in Magnetically Confined Plasmas, report, December 1, 2005; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc894898/: accessed October 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.