Magnetic stochasticity in gyrokinetic simulations of plasma microturbulence

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Analysis of the magnetic field structure from electromagnetic simulations of tokamak ion temperature gradient turbulence demonstrates that the magnetic field can be stochastic even at very low plasma pressure. The degree of magnetic stochasticity is quantified by evaluating the magnetic diffusion coefficient. We find that the magnetic stochasticity fails to produce a dramatic increase in the electron heat conductivity because the magnetic diffusion coefficient remains small.

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Nevins, W M; Wang, E & Candy, J February 12, 2010.

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Analysis of the magnetic field structure from electromagnetic simulations of tokamak ion temperature gradient turbulence demonstrates that the magnetic field can be stochastic even at very low plasma pressure. The degree of magnetic stochasticity is quantified by evaluating the magnetic diffusion coefficient. We find that the magnetic stochasticity fails to produce a dramatic increase in the electron heat conductivity because the magnetic diffusion coefficient remains small.

Physical Description

PDF-file: 6 pages; size: 3.5 Mbytes

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  • Journal Name: Physical Review Letters, vol. 106, no. 6, February 11, 2011, pp. 065003; Journal Volume: 106; Journal Issue: 6

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  • Report No.: LLNL-JRNL-423692
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 1010405
  • Archival Resource Key: ark:/67531/metadc840061

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  • February 12, 2010

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • Dec. 7, 2016, 4:50 p.m.

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Nevins, W M; Wang, E & Candy, J. Magnetic stochasticity in gyrokinetic simulations of plasma microturbulence, article, February 12, 2010; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc840061/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.