skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Scalings of energetic particle transport by ion temperature gradient microturbulence

Abstract

Transport scaling of energetic particles by ion temperature gradient microturbulence in magnetized plasmas is studied in massively paralleled gyrokinetic particle-in-cell simulations. Here, it is found that the diffusivity decreases drastically at high particles energy (E) to plasma temperature (T) ratio because of the averaging effects of the large gyroradius and drift-orbit width, and the fast wave-particle decorrelation. At high energy, the diffusivity follows a (E/T)–1 scaling for purely passing particles, a (E/T)–2 scaling for deeply trapped particles and a (E/T)–1 scaling for particles with an isotropic velocity distribution since the diffusivity therein is contributed mostly by the passing particles.

Authors:
 [1];  [2];  [3];  [3];  [3];  [4]
  1. Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy; Univ. of Science and Technology of China, Anhui (China). CAS Key Lab of Basic Plasma Physics
  2. Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy
  3. Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy
  4. Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy; Zhejiang Univ., Zhejiang (China). Inst. for Fusion Theory and Simulation
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1564693
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 17; Journal Issue: 5; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Physics

Citation Formats

Zhang, Wenlu, Decyk, Viktor, Holod, Ihor, Xiao, Yong, Lin, Zhihong, and Chen, Liu. Scalings of energetic particle transport by ion temperature gradient microturbulence. United States: N. p., 2010. Web. doi:10.1063/1.3379471.
Zhang, Wenlu, Decyk, Viktor, Holod, Ihor, Xiao, Yong, Lin, Zhihong, & Chen, Liu. Scalings of energetic particle transport by ion temperature gradient microturbulence. United States. doi:https://doi.org/10.1063/1.3379471
Zhang, Wenlu, Decyk, Viktor, Holod, Ihor, Xiao, Yong, Lin, Zhihong, and Chen, Liu. Fri . "Scalings of energetic particle transport by ion temperature gradient microturbulence". United States. doi:https://doi.org/10.1063/1.3379471. https://www.osti.gov/servlets/purl/1564693.
@article{osti_1564693,
title = {Scalings of energetic particle transport by ion temperature gradient microturbulence},
author = {Zhang, Wenlu and Decyk, Viktor and Holod, Ihor and Xiao, Yong and Lin, Zhihong and Chen, Liu},
abstractNote = {Transport scaling of energetic particles by ion temperature gradient microturbulence in magnetized plasmas is studied in massively paralleled gyrokinetic particle-in-cell simulations. Here, it is found that the diffusivity decreases drastically at high particles energy (E) to plasma temperature (T) ratio because of the averaging effects of the large gyroradius and drift-orbit width, and the fast wave-particle decorrelation. At high energy, the diffusivity follows a (E/T)–1 scaling for purely passing particles, a (E/T)–2 scaling for deeply trapped particles and a (E/T)–1 scaling for particles with an isotropic velocity distribution since the diffusivity therein is contributed mostly by the passing particles.},
doi = {10.1063/1.3379471},
journal = {Physics of Plasmas},
number = 5,
volume = 17,
place = {United States},
year = {2010},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Alpha particle physics experiments in the Tokamak Fusion Test Reactor
journal, January 2000


Nonlinear gyrokinetic equations for tokamak microturbulence
journal, September 1988


Hamiltonian theory of guiding-center motion
journal, May 2009


Nonlinear theory of collisionless trapped ion modes
journal, January 1996

  • Hahm, T. S.; Tang, W. M.
  • Physics of Plasmas, Vol. 3, Issue 1
  • DOI: 10.1063/1.871851

Nature of Transport across Sheared Zonal Flows in Electrostatic Ion-Temperature-Gradient Gyrokinetic Plasma Turbulence
journal, November 2008


Theory of plasma transport induced by low-frequency hydromagnetic waves
journal, February 1999

  • Chen, Liu
  • Journal of Geophysical Research: Space Physics, Vol. 104, Issue A2
  • DOI: 10.1029/1998JA900051

Effects of Collisional Zonal Flow Damping on Turbulent Transport
journal, November 1999


Object-oriented design patterns in Fortran 90/95: mazev1, mazev2 and mazev3
journal, April 2008


Turbulence spreading and transport scaling in global gyrokinetic particle simulations
journal, March 2004


Mechanisms and scalings of energetic ion transport via tokamak microturbulence
journal, November 2008


Guiding-Center Hamiltonian for Arbitrary Gyration
journal, October 1979


Gyrokinetic particle simulations of toroidal momentum transport
journal, September 2008


Effect of drifts on the diffusion of runaway electrons in tokamak stochastic magnetic fields
journal, January 1992

  • Myra, J. R.; Catto, Peter J.
  • Physics of Fluids B: Plasma Physics, Vol. 4, Issue 1
  • DOI: 10.1063/1.860431

Beam-ion confinement for different injection geometries
journal, October 2009


Test-Particle Transport in Strong Electrostatic Drift Turbulence with Finite Larmor Radius Effects
journal, June 1996


Compressed ion temperature gradient turbulence in diverted tokamak edge
journal, May 2009

  • Chang, C. S.; Ku, S.; Diamond, P. H.
  • Physics of Plasmas, Vol. 16, Issue 5
  • DOI: 10.1063/1.3099329

Drift waves and transport
journal, April 1999


Electron Heat Transport in a Tokamak with Destroyed Magnetic Surfaces
journal, January 1978


Off-axis current drive and real-time control of current profile in JT-60U
journal, February 2008


Quasilinear diffusion in stochastic magnetic fields: Reconciliation of drift‐orbit modification calculations
journal, April 1993

  • Myra, J. R.; Catto, Peter J.; Mynick, H. E.
  • Physics of Fluids B: Plasma Physics, Vol. 5, Issue 4
  • DOI: 10.1063/1.860906

Excitation of zonal flow by drift waves in toroidal plasmas
journal, August 2000

  • Chen, Liu; Lin, Zhihong; White, Roscoe
  • Physics of Plasmas, Vol. 7, Issue 8
  • DOI: 10.1063/1.874222

Shearing rate of time-dependent E×B flow
journal, March 1999

  • Hahm, T. S.; Beer, M. A.; Lin, Z.
  • Physics of Plasmas, Vol. 6, Issue 3
  • DOI: 10.1063/1.873331

Size Scaling of Turbulent Transport in Magnetically Confined Plasmas
journal, April 2002


Interaction of energetic particles with large and small scale instabilities
journal, July 2007


Turbulent transport of alpha particles in reactor plasmas
journal, November 2006

  • Estrada-Mila, C.; Candy, J.; Waltz, R. E.
  • Physics of Plasmas, Vol. 13, Issue 11
  • DOI: 10.1063/1.2364149

Anomalous transport of energetic particles in ITER relevant scenarios
journal, November 2009

  • Albergante, M.; Graves, J. P.; Fasoli, A.
  • Physics of Plasmas, Vol. 16, Issue 11
  • DOI: 10.1063/1.3257913

Evidence for Fast-Ion Transport by Microturbulence
journal, October 2009


Transport of Energetic Particles by Microturbulence in Magnetized Plasmas
journal, August 2008


Generalized banana-drift transport
journal, April 1986


Streamer-induced transport in electron temperature gradient turbulence
journal, October 2009


Gyrokinetic simulations of impurity, He ash and α particle transport and consequences on ITER transport modelling
journal, April 2009


The Transport of Cosmic Rays across a Turbulent Magnetic Field
journal, July 1999

  • Giacalone, J.; Jokipii, J. R.
  • The Astrophysical Journal, Vol. 520, Issue 1
  • DOI: 10.1086/307452

Alpha particle confinement in tokamaks
journal, May 1989

  • White, R. B.; Mynick, H. E.
  • Physics of Fluids B: Plasma Physics, Vol. 1, Issue 5
  • DOI: 10.1063/1.858986

Gyrokinetic calculations of diffusive and convective transport of α particles with a slowing-down distribution function
journal, May 2008

  • Angioni, C.; Peeters, A. G.
  • Physics of Plasmas, Vol. 15, Issue 5
  • DOI: 10.1063/1.2913610

Enhanced fusion performance due to plasma shape modification of simulated ITER discharges in DIII-D
journal, September 1997


Linear comparison of gyrokinetic codes with trapped electrons
journal, November 2007


Foundations of nonlinear gyrokinetic theory
journal, April 2007


Turbulent Transport of Trapped-Electron Modes in Collisionless Plasmas
journal, August 2009


Nonlinear gyrokinetic equations for low-frequency electromagnetic waves in general plasma equilibria
journal, January 1982


A unified theory of tokamak transport via the generalized Balescu–Lenard collision operator
journal, April 1989

  • Mynick, H. E.; Duvall, R. E.
  • Physics of Fluids B: Plasma Physics, Vol. 1, Issue 4
  • DOI: 10.1063/1.859140

The behaviour of fast ions in tokamak experiments
journal, April 1994


Gyrokinetic particle simulation model
journal, September 1987


Turbulent Transport Reduction by Zonal Flows: Massively Parallel Simulations
journal, September 1998


Larmor radius effects on impurity transport in turbulent plasmas
journal, January 2005


Bounce-averaged kinetic equations and neoclassical polarization density
journal, January 1999

  • Fong, B. H.; Hahm, T. S.
  • Physics of Plasmas, Vol. 6, Issue 1
  • DOI: 10.1063/1.873272

Wave-Particle Decorrelation and Transport of Anisotropic Turbulence in Collisionless Plasmas
journal, December 2007


Electrostatic and magnetic transport of energetic ions in turbulent plasmas
journal, February 2009


High-n ideal and resistive shear Alfvén waves in tokamaks
journal, April 1985


Electron fishbones: theory and experimental evidence
journal, October 2007


Generalized gyrokinetics
journal, July 1981


    Works referencing / citing this record:

    Comment on “Electrostatic and Magnetic Transport of Energetic Ions in Turbulent Plasmas”
    journal, November 2011


    Simulation of toroidicity-induced Alfven eigenmode excited by energetic ions in HL-2A tokamak plasmas
    journal, October 2018


    Energetic particle physics in fusion research in preparation for burning plasma experiments
    journal, November 2014


    Analytic slowing-down distributions as modified by turbulent transport
    journal, November 2018


    Physics of Alfvén waves and energetic particles in burning plasmas
    journal, March 2016


    First principles of modelling the stabilization of microturbulence by fast ions
    journal, June 2018


    Gyrokinetic particle simulation of electrostatic microturbulence with impurity ions
    journal, August 2018

    • Wei, Xishuo; Yang, Hongwei; Li, Shengming
    • Physics of Plasmas, Vol. 25, Issue 8
    • DOI: 10.1063/1.5038158