Full-wave simulations of ICRF heating regimes in toroidal plasma with non-Maxwellian distribution functions
Abstract
At the power levels required for significant heating and current drive in magnetically-confined toroidal plasma, modification of the particle distribution function from a Maxwellian shape is likely (Stix 1975 Nucl. Fusion 15 737), with consequent changes in wave propagation and in the location and amount of absorption. In order to study these effects computationally, both the finite-Larmor-radius and the high-harmonic fast wave (HHFW), versions of the full-wave, hot-plasma toroidal simulation code TORIC (Brambilla 1999 Plasma Phys. Control. Fusion 41 1 and Brambilla 2002 Plasma Phys. Control. Fusion 44 2423), have been extended to allow the prescription of arbitrary velocity distributions of the form f(v(parallel to), v(perpendicular to) , psi, theta). For hydrogen (H) minority heating of a deuterium (D) plasma with anisotropic Maxwellian H distributions, the fractional H absorption varies significantly with changes in parallel temperature but is essentially independent of perpendicular temperature. On the other hand, for HHFW regime with anisotropic Maxwellian fast ion distribution, the fractional beam ion absorption varies mainly with changes in the perpendicular temperature. The evaluation of the wave-field and power absorption, through the full wave solver, with the ion distribution function provided by either a Monte-Carlo particle and Fokker-Planck codes is also examined formore »
- Authors:
-
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center
- XCEL Engineering Inc., Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- OSTI Identifier:
- 1353395
- Grant/Contract Number:
- FC02-01ER54648; AC02-CH0911466
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Fusion
- Additional Journal Information:
- Journal Volume: 57; Journal Issue: 5; Related Information: The digital data for this paper can be found following the links from http://arks.princeton.edu/ark:/88435/dsp01g445cg642; Journal ID: ISSN 0029-5515
- Publisher:
- IOP Science
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Tokamak; ICRH; Waves; Plasma; HHFW; Minority heating; Tokamak plasmas; Absorption; Equations; Geometry; Nstx
Citation Formats
Bertelli, N., Valeo, E. J., Green, D. L., Gorelenkova, M., Phillips, C. K., Podestà, M., Lee, J. P., Wright, J. C., and Jaeger, E. F. Full-wave simulations of ICRF heating regimes in toroidal plasma with non-Maxwellian distribution functions. United States: N. p., 2017.
Web. doi:10.1088/1741-4326/aa66db.
Bertelli, N., Valeo, E. J., Green, D. L., Gorelenkova, M., Phillips, C. K., Podestà, M., Lee, J. P., Wright, J. C., & Jaeger, E. F. Full-wave simulations of ICRF heating regimes in toroidal plasma with non-Maxwellian distribution functions. United States. https://doi.org/10.1088/1741-4326/aa66db
Bertelli, N., Valeo, E. J., Green, D. L., Gorelenkova, M., Phillips, C. K., Podestà, M., Lee, J. P., Wright, J. C., and Jaeger, E. F. Mon .
"Full-wave simulations of ICRF heating regimes in toroidal plasma with non-Maxwellian distribution functions". United States. https://doi.org/10.1088/1741-4326/aa66db. https://www.osti.gov/servlets/purl/1353395.
@article{osti_1353395,
title = {Full-wave simulations of ICRF heating regimes in toroidal plasma with non-Maxwellian distribution functions},
author = {Bertelli, N. and Valeo, E. J. and Green, D. L. and Gorelenkova, M. and Phillips, C. K. and Podestà, M. and Lee, J. P. and Wright, J. C. and Jaeger, E. F.},
abstractNote = {At the power levels required for significant heating and current drive in magnetically-confined toroidal plasma, modification of the particle distribution function from a Maxwellian shape is likely (Stix 1975 Nucl. Fusion 15 737), with consequent changes in wave propagation and in the location and amount of absorption. In order to study these effects computationally, both the finite-Larmor-radius and the high-harmonic fast wave (HHFW), versions of the full-wave, hot-plasma toroidal simulation code TORIC (Brambilla 1999 Plasma Phys. Control. Fusion 41 1 and Brambilla 2002 Plasma Phys. Control. Fusion 44 2423), have been extended to allow the prescription of arbitrary velocity distributions of the form f(v(parallel to), v(perpendicular to) , psi, theta). For hydrogen (H) minority heating of a deuterium (D) plasma with anisotropic Maxwellian H distributions, the fractional H absorption varies significantly with changes in parallel temperature but is essentially independent of perpendicular temperature. On the other hand, for HHFW regime with anisotropic Maxwellian fast ion distribution, the fractional beam ion absorption varies mainly with changes in the perpendicular temperature. The evaluation of the wave-field and power absorption, through the full wave solver, with the ion distribution function provided by either a Monte-Carlo particle and Fokker-Planck codes is also examined for Alcator C-Mod and NSTX plasmas. Non-Maxwellian effects generally tend to increase the absorption with respect to the equivalent Maxwellian distribution.},
doi = {10.1088/1741-4326/aa66db},
journal = {Nuclear Fusion},
number = 5,
volume = 57,
place = {United States},
year = {Mon Apr 03 00:00:00 EDT 2017},
month = {Mon Apr 03 00:00:00 EDT 2017}
}
Web of Science
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Full-wave simulations of ICRF heating regimes in toroidal plasmas with non-Maxwellian distribution functions
dataset, January 2017
- Bertelli, N.; Valeo, E. J.; Green, D. L.
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Full-wave simulations of ICRF heating regimes in toroidal plasmas with non-Maxwellian distribution functions
dataset, January 2017
- Bertelli, N.; Valeo, E. J.; Green, D. L.
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Full-wave simulations of ICRF heating regimes in toroidal plasmas with non-Maxwellian distribution functions
dataset, January 2017
- Bertelli, N.; Valeo, E. J.; Green, D. L.
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Full-wave simulations of ICRF heating regimes in toroidal plasmas with non-Maxwellian distribution functions
dataset, January 2017
- Bertelli, N.; Valeo, E. J.; Green, D. L.
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Full-wave simulations of ICRF heating regimes in toroidal plasmas with non-Maxwellian distribution functions
dataset, January 2017
- Bertelli, N.; Valeo, E.; Green, D.
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Full-wave simulations of ICRF heating regimes in toroidal plasmas with non-Maxwellian distribution functions
dataset, January 2017
- Bertelli, N.; Valeo, E.; Green, D.
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Works referencing / citing this record:
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Full-wave simulations of ICRF heating regimes in toroidal plasmas with non-Maxwellian distribution functions
dataset, January 2017
- Bertelli, N.; Valeo, E. J.; Green, D. L.
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Full-wave simulations of ICRF heating regimes in toroidal plasmas with non-Maxwellian distribution functions
dataset, January 2017
- Bertelli, N.; Valeo, E.; Green, D.
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Full-wave simulations of ICRF heating regimes in toroidal plasmas with non-Maxwellian distribution functions
dataset, January 2017
- Bertelli, N.; Valeo, E. J.; Green, D. L.
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)