Response to ""comment on 'magnetic topology effects on alcator C-mod scrape-off layer flow'

Sinakov, Andrei N; Catto, Peter J

doi:10.1088/0741-3335/50/10/105010

Response to ""comment on 'magnetic topology effects on alcator C-mod scrape-off layer flow'

Journal Article · Tue Jan 01 04:00:00 EST 2008 · Plasma Physics and Controlled Fusion

DOI:https://doi.org/10.1088/0741-3335/50/10/105010· OSTI ID:960994

Sinakov, Andrei N ^[1]; Catto, Peter J ^[2]

Los Alamos National Laboratory
MIT

Recent interest in the experimental study of tokamak plasma flow for different magnetic field geometries calls for theoretical understanding of the effects of tokamak magnetic topology changes on the flow. The consequences of total magnetic field reversal and/or X-point reversal on divergence-free plasma flow within magnetic flux surfaces are considered and the results are applied to interpret recent Alcator C-Mod scrape-off layer flow measurements. In his comment to that work, Aydemir asserted that poloidal plasma flow reversal is not a valid response to toroidal magnetic field reversal in an up-down symmetric tokamak, and that the toroidal plasma flow must reverse instead. We show that this assertion is wrong due to his misunderstanding of the corresponding symmetry transformation.

View Journal Article

Research Organization:: Los Alamos National Laboratory (LANL)

Sponsoring Organization:: DOE

DOE Contract Number:: AC52-06NA25396

OSTI ID:: 960994

Report Number(s):: LA-UR-08-06928; LA-UR-08-6928

Journal Information:: Plasma Physics and Controlled Fusion, Journal Name: Plasma Physics and Controlled Fusion; ISSN PPCFET; ISSN 0741-3335

Country of Publication:: United States

Language:: English

References (18)

Plasma-wall interactions in ITER Parker, R.; Janeschitz, G.; Pacher, H. D. Journal of Nuclear Materials, Vol. 241-243 https://doi.org/10.1016/S0022-3115(97)80027-X	journal	February 1997
Sustained Stabilization of the Resistive-Wall Mode by Plasma Rotation in the DIII-D Tokamak Garofalo, A. M.; Strait, E. J.; Johnson, L. C. Physical Review Letters, Vol. 89, Issue 23 https://doi.org/10.1103/PhysRevLett.89.235001	journal	November 2002
Transport-driven Scrape-Off-Layer flows and the boundary conditions imposed at the magnetic separatrix in a tokamak plasma LaBombard, B.; Rice, J. E.; Hubbard, A. E. Nuclear Fusion, Vol. 44, Issue 10 https://doi.org/10.1088/0029-5515/44/10/001	journal	September 2004
Neoclassical transport of impurities in tokamak plasmas Hirshman, S. P.; Sigmar, D. J. Nuclear Fusion, Vol. 21, Issue 9 https://doi.org/10.1088/0029-5515/21/9/003	journal	September 1981
Shear flows at the tokamak edge and their interaction with edge-localized modes Aydemir, A. Y. Physics of Plasmas, Vol. 14, Issue 5 https://doi.org/10.1063/1.2727330	journal	May 2007
Magnetic topology effects on Alcator C-Mod flows Catto, Peter J.; Simakov, Andrei N. Physics of Plasmas, Vol. 13, Issue 5 https://doi.org/10.1063/1.2200292	journal	May 2006
Modelling and consequences of drift effects in the edge plasma of Alcator C-Mod Bonnin, X.; Coster, D.; Schneider, R. Journal of Nuclear Materials, Vol. 337-339 https://doi.org/10.1016/j.jnucmat.2004.10.102	journal	March 2005
Physics of the L-mode to H-mode transition in tokamaks Burrell, K. H.; Carlstrom, T. N.; Doyle, E. J. Plasma Physics and Controlled Fusion, Vol. 34, Issue 13 https://doi.org/10.1088/0741-3335/34/13/014	journal	December 1992
A comparison of experimental measurements and code results to determine flows in the JET SOL Erents, S. K.; Pitts, R. A.; Fundamenski, W. Plasma Physics and Controlled Fusion, Vol. 46, Issue 11 https://doi.org/10.1088/0741-3335/46/11/006	journal	September 2004
Erratum: “Magnetic topology effects on Alcator C-Mod flows” [Phys. Plasmas 13, 052507 (2006)] Catto, Peter J.; Simakov, Andrei N. Physics of Plasmas, Vol. 14, Issue 2 https://doi.org/10.1063/1.2435305	journal	February 2007
Material erosion and migration in tokamaks Pitts, R. A.; Coad, J. P.; Coster, D. P. Plasma Physics and Controlled Fusion, Vol. 47, Issue 12B https://doi.org/10.1088/0741-3335/47/12B/S22	journal	November 2005
Theory of plasma transport in toroidal confinement systems Hinton, F. L.; Hazeltine, R. D. Reviews of Modern Physics, Vol. 48, Issue 2 https://doi.org/10.1103/RevModPhys.48.239	journal	April 1976
Discrete symmetries in axisymmetric toroidal plasma confinement Cohen, R. H.; Ryutov, D. D. Physics of Plasmas, Vol. 8, Issue 5 https://doi.org/10.1063/1.1357217	journal	May 2001
Arbitrary poloidal gyroradius effects in tokamak pedestals and transport barriers Kagan, Grigory; Catto, Peter J. Plasma Physics and Controlled Fusion, Vol. 50, Issue 8 https://doi.org/10.1088/0741-3335/50/8/085010	journal	June 2008
Characteristics of the H-mode pedestal in improved confinement scenarios in ASDEX Upgrade, DIII-D, JET and JT-60U Maggi, C. F.; Groebner, R. J.; Oyama, N. Nuclear Fusion, Vol. 47, Issue 7 https://doi.org/10.1088/0029-5515/47/7/005	journal	June 2007
Multi-Fluid Modeling of Large Parallel Plasma Flows in the Tokamak Scrape-Off Layer Pigarov, A. Yu.; Krasheninnikov, S. I.; LaBombard, B. Contributions to Plasma Physics, Vol. 46, Issue 7-9 https://doi.org/10.1002/ctpp.200610051	journal	September 2006
Parallel SOL flow on TCV Pitts, R. A.; Horacek, J.; Fundamenski, W. Journal of Nuclear Materials, Vol. 363-365 https://doi.org/10.1016/j.jnucmat.2006.12.065	journal	June 2007
Measurement of Natural Plasma Flow along the Field Lines in the Scrape-Off Layer on the JT-60U Divertor Tokamak Asakura, N.; Sakurai, S.; Shimada, M. Physical Review Letters, Vol. 84, Issue 14 https://doi.org/10.1103/PhysRevLett.84.3093	journal	April 2000

Similar Records

Response to ""Comment on ""Magnetic topology effects on alcator c-mod scrape-off layer flow

Journal Article · Mon Dec 31 23:00:00 EST 2007 · Plasma Physics and Controlled Fusion · OSTI ID:960869

Magnetic topology effects on Alcator C-Mod flows

Journal Article · Mon May 15 00:00:00 EDT 2006 · Physics of Plasmas · OSTI ID:20783066

Comparison of Edge Turbulence Imaging at Two Different Poloidal Locations in the Scrape-off Layer of Alcator C-Mod

Technical Report · Fri Mar 29 00:00:00 EDT 2013 · OSTI ID:1072360

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LAYERS
MAGNETIC FIELD REVERSAL
MAGNETIC FIELDS
MAGNETIC FLUX
PLASMA
SURFACES
SYMMETRY
TOKAMAK DEVICES
TOPOLOGY

Response to ""comment on 'magnetic topology effects on alcator C-mod scrape-off layer flow'

Citation Formats

References (18)

Similar Records

Related Subjects