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Carralero D, Manz P, Aho-Mantila L, Birkenmeier G, Brix M, Groth M, Müller HW, Stroth U, Vianello N, Wolfrum E. Experimental Validation of a Filament Transport Model in Turbulent Magnetized Plasmas. PHYSICAL REVIEW LETTERS 2015; 115:215002. [PMID: 26636855 DOI: 10.1103/physrevlett.115.215002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Indexed: 06/05/2023]
Abstract
In a wide variety of natural and laboratory magnetized plasmas, filaments appear as a result of interchange instability. These convective structures substantially enhance transport in the direction perpendicular to the magnetic field. According to filament models, their propagation may follow different regimes depending on the parallel closure of charge conservation. This is of paramount importance in magnetic fusion plasmas, as high collisionality in the scrape-off layer may trigger a regime transition leading to strongly enhanced perpendicular particle fluxes. This work reports for the first time on an experimental verification of this process, linking enhanced transport with a regime transition as predicted by models. Based on these results, a novel scaling for global perpendicular particle transport in reactor relevant tokamaks such as ASDEX-Upgrade and JET is found, leading to important implications for next generation fusion devices.
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Affiliation(s)
- D Carralero
- Max-Planck-Institute for Plasma Physics, Boltzmannstraße 2, Garching, Germany
| | - P Manz
- Physik-Department E28, Technische Universität München, James-Franck-Straße 1, Garching, Germany
| | - L Aho-Mantila
- VTT Technical Research Center of Finland, Helsinki, Finland
| | - G Birkenmeier
- Max-Planck-Institute for Plasma Physics, Boltzmannstraße 2, Garching, Germany
- Physik-Department E28, Technische Universität München, James-Franck-Straße 1, Garching, Germany
| | - M Brix
- EUROfusion Consortium, JET, Culham Science Centre, Abingdon, OX14 3DB, United Kingdom
| | - M Groth
- Aalto University, Espoo, Finland
| | - H W Müller
- Max-Planck-Institute for Plasma Physics, Boltzmannstraße 2, Garching, Germany
- Institute of Materials Chemistry and Research, University of Vienna, Whringerstrasse 42, A-1090 Vienna, Austria
| | - U Stroth
- Max-Planck-Institute for Plasma Physics, Boltzmannstraße 2, Garching, Germany
- Physik-Department E28, Technische Universität München, James-Franck-Straße 1, Garching, Germany
| | - N Vianello
- Consorzio RFX, C.so Stati Uniti 4,I-35127 Padova, Italy
- Ecole Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC), CH-1015 Lausanne, Switzerland
| | - E Wolfrum
- Max-Planck-Institute for Plasma Physics, Boltzmannstraße 2, Garching, Germany
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Kellogg PJ, Goetz K, Howard RL, Monson SJ, Balogh A, Forsyth RJ. Measurement of direct current electric fields and plasma flow speeds in Jupiter's magnetosphere. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/92ja02982] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Selesnick RS, McNutt RL. Voyager 2 plasma ion observations in the magnetosphere of Uranus. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja092ia13p15249] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bagenal F, Delamere PA. Flow of mass and energy in the magnetospheres of Jupiter and Saturn. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010ja016294] [Citation(s) in RCA: 222] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fran Bagenal
- Laboratory for Atmospheric and Space Physics; University of Colorado at Boulder; Boulder Colorado USA
| | - Peter A. Delamere
- Laboratory for Atmospheric and Space Physics; University of Colorado at Boulder; Boulder Colorado USA
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Chen Y, Hill TW, Rymer AM, Wilson RJ. Rate of radial transport of plasma in Saturn's inner magnetosphere. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010ja015412] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Y. Chen
- Department of Physics and Astronomy; Rice University; Houston Texas USA
| | - T. W. Hill
- Department of Physics and Astronomy; Rice University; Houston Texas USA
| | - A. M. Rymer
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - R. J. Wilson
- Laboratory for Atmospheric and Space Physics; University of Colorado at Boulder; Boulder Colorado USA
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Müller AL, Saur J, Krupp N, Roussos E, Mauk BH, Rymer AM, Mitchell DG, Krimigis SM. Azimuthal plasma flow in the Kronian magnetosphere. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009ja015122] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. L. Müller
- Max Planck Institute for Solar System Research; Katlenburg-Lindau Germany
- Institute of Geophysics and Meteorology; University of Cologne; Cologne Germany
| | - J. Saur
- Institute of Geophysics and Meteorology; University of Cologne; Cologne Germany
| | - N. Krupp
- Max Planck Institute for Solar System Research; Katlenburg-Lindau Germany
| | - E. Roussos
- Max Planck Institute for Solar System Research; Katlenburg-Lindau Germany
| | - B. H. Mauk
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - A. M. Rymer
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - D. G. Mitchell
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - S. M. Krimigis
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
- Office of Space Research Technology; Academy of Athens; Athens Greece
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Provan G, Andrews DJ, Arridge CS, Coates AJ, Cowley SWH, Milan SE, Dougherty MK, Wright DM. Polarization and phase of planetary-period magnetic field oscillations on high-latitude field lines in Saturn's magnetosphere. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008ja013782] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- G. Provan
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - D. J. Andrews
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - C. S. Arridge
- Mullard Space Science Laboratory; University College London; Dorking UK
- Centre for Planetary Sciences; University College London; London UK
| | - A. J. Coates
- Mullard Space Science Laboratory; University College London; Dorking UK
| | - S. W. H. Cowley
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - S. E. Milan
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | | | - D. M. Wright
- Department of Physics and Astronomy; University of Leicester; Leicester UK
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Nichols JD, Clarke JT, Cowley SWH, Duval J, Farmer AJ, Gérard JC, Grodent D, Wannawichian S. Oscillation of Saturn's southern auroral oval. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008ja013444] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- J. D. Nichols
- Center for Space Physics; Boston University; Boston Massachusetts USA
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - J. T. Clarke
- Center for Space Physics; Boston University; Boston Massachusetts USA
| | - S. W. H. Cowley
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - J. Duval
- Center for Space Physics; Boston University; Boston Massachusetts USA
| | - A. J. Farmer
- Harvard-Smithsonian Center for Astrophysics; Harvard University; Cambridge Massachusetts USA
| | - J.-C. Gérard
- Institut d'Astrophysique et de Géophysique; Université de Liège; Liege Belgium
| | - D. Grodent
- Institut d'Astrophysique et de Géophysique; Université de Liège; Liege Belgium
| | - S. Wannawichian
- Center for Space Physics; Boston University; Boston Massachusetts USA
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Andrews DJ, Bunce EJ, Cowley SWH, Dougherty MK, Provan G, Southwood DJ. Planetary period oscillations in Saturn's magnetosphere: Phase relation of equatorial magnetic field oscillations and Saturn kilometric radiation modulation. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007ja012937] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- D. J. Andrews
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - E. J. Bunce
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - S. W. H. Cowley
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | | | - G. Provan
- Department of Physics and Astronomy; University of Leicester; Leicester UK
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Chen Y, Hill TW. Statistical analysis of injection/dispersion events in Saturn's inner magnetosphere. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008ja013166] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Y. Chen
- Department of Physics and Astronomy; Rice University; Houston Texas USA
| | - T. W. Hill
- Department of Physics and Astronomy; Rice University; Houston Texas USA
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Menietti JD, Santolik O, Rymer AM, Hospodarsky GB, Persoon AM, Gurnett DA, Coates AJ, Young DT. Analysis of plasma waves observed within local plasma injections seen in Saturn's magnetosphere. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007ja012856] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- J. D. Menietti
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - O. Santolik
- Institute of Atmospheric Physics; ASCR, and Charles University; Prague Czech Republic
| | - A. M. Rymer
- Johns Hopkins University, Applied Physics Laboratory; Laurel Maryland USA
| | - G. B. Hospodarsky
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - A. M. Persoon
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - D. A. Gurnett
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - A. J. Coates
- University College London, Mullard Space Science Laboratory; Dorking UK
| | - D. T. Young
- Southwest Research Institute; San Antonio Texas USA
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Southwood DJ, Kivelson MG. Saturnian magnetospheric dynamics: Elucidation of a camshaft model. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2007ja012254] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- D. J. Southwood
- European Space Agency Headquarters; Paris France
- Physics Department; Imperial College; London UK
- Institute of Geophysics and Planetary Physics; University of California; Los Angeles California USA
| | - M. G. Kivelson
- Institute of Geophysics and Planetary Physics; University of California; Los Angeles California USA
- Department of Earth and Space Sciences; University of California; Los Angeles California USA
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Goldreich P, Farmer AJ. Spontaneous axisymmetry breaking of the external magnetic field at Saturn. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006ja012163] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Alison J. Farmer
- Department of Astronomy; Harvard University; Cambridge Massachusetts USA
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Gurnett DA, Persoon AM, Kurth WS, Groene JB, Averkamp TF, Dougherty MK, Southwood DJ. The Variable Rotation Period of the Inner Region of Saturn's Plasma Disk. Science 2007; 316:442-5. [PMID: 17379775 DOI: 10.1126/science.1138562] [Citation(s) in RCA: 211] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
We show that the plasma and magnetic fields in the inner region of Saturn's plasma disk rotate in synchronism with the time-variable modulation period of Saturn's kilometric radio emission. This relation suggests that the radio modulation has its origins in the inner region of the plasma disk, most likely from a centrifugally driven convective instability and an associated plasma outflow that slowly slips in phase relative to Saturn's internal rotation. The slippage rate is determined by the electrodynamic coupling of the plasma disk to Saturn and by the drag force exerted by its interaction with the Enceladus neutral gas torus.
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Affiliation(s)
- D A Gurnett
- Department of Physics and Astronomy, University of Iowa, Iowa City, IA 52242, USA
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17
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Wu H, Hill TW, Wolf RA, Spiro RW. Numerical simulation of fine structure in the Io plasma torus produced by the centrifugal interchange instability. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006ja012032] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- H. Wu
- Department of Physics and Astronomy; Rice University; Houston Texas USA
| | - T. W. Hill
- Department of Physics and Astronomy; Rice University; Houston Texas USA
| | - R. A. Wolf
- Department of Physics and Astronomy; Rice University; Houston Texas USA
| | - R. W. Spiro
- Department of Physics and Astronomy; Rice University; Houston Texas USA
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18
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Hill TW. Effect of the acceleration current on the centrifugal interchange instability. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005ja011338] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Levitt B, Maslovsky D, Mauel ME. Observation of centrifugally driven interchange instabilities in a plasma confined by a magnetic dipole. PHYSICAL REVIEW LETTERS 2005; 94:175002. [PMID: 15904304 DOI: 10.1103/physrevlett.94.175002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2004] [Indexed: 05/02/2023]
Abstract
Centrifugally driven interchange instabilities are observed in a laboratory plasma confined by a dipole magnetic field. The instabilities appear when an equatorial mesh is biased to drive a radial current that causes rapid axisymmetric plasma rotation. The observed instabilities are quasicoherent in the laboratory frame of reference; they have global radial mode structures and low azimuthal mode numbers, and they are modified by the presence of energetic, magnetically confined electrons. Results from a self-consistent nonlinear simulation reproduce the measured mode structures.
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Affiliation(s)
- B Levitt
- Department of Applied Physics and Applied Mathematics Columbia University, New York, New York 10027, USA.
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20
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Espinosa SA, Southwood DJ, Dougherty MK. How can Saturn impose its rotation period in a noncorotating magnetosphere? ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001ja005084] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - David J. Southwood
- Space and Atmospheric Physics, Blackett Laboratory; Imperial College; London UK
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Frank LA, Paterson WR. Galileo observations of electron beams and thermal ions in Jupiter's magnetosphere and their relationship to the auroras. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001ja009150] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- L. A. Frank
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - W. R. Paterson
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
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Pontius DH, Wolf RA, Hill TW, Spiro RW, Yang YS, Smyth WH. Velocity shear impoundment of the Io plasma torus. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98je00538] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Anglin JD, Burrows JR, Mu JL, Wilson MD. Trapped energetic ions in Jupiter's inner magnetosphere. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/96ja02681] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Cowley SWH, Balogh A, Dougherty MK, Dunlop MW, Edwards TM, Forsyth RJ, Hynds RJ, Laxton NF, Staines K. Plasma flow in the Jovian magnetosphere and related magnetic effects: Ulysses observations. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/96ja00461] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Hawkins SE, Cheng AF, Lanzerotti LJ, Maclennan CG. Rotational anisotropy of the Jovian magnetosphere at high latitudes. ACTA ACUST UNITED AC 1995. [DOI: 10.1029/95ja00730] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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28
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Yang YS, Wolf RA, Spiro RW, Hill TW, Dessler AJ. Numerical simulation of torus-driven plasma transport in the Jovian magnetosphere. ACTA ACUST UNITED AC 1994. [DOI: 10.1029/94ja00142] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Fazakerley AN, Southwood DJ. Drift waves, magnetospheric interchange instability, and plasma transport in the magnetosphere of Jupiter. ACTA ACUST UNITED AC 1992. [DOI: 10.1029/92ja00280] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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30
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Liu WW. Rotating magnetic anomalies as a possible accelerator of charged particles. ACTA ACUST UNITED AC 1992. [DOI: 10.1029/92ja00298] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Liu WW, Hill TW. Convective transport of plasma in the inner Jovian magnetosphere. ACTA ACUST UNITED AC 1990. [DOI: 10.1029/ja095ia04p04017] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Pontius DH, Hill TW. Rotation driven plasma transport: The coupling of macroscopic motion and microdiffusion. ACTA ACUST UNITED AC 1989. [DOI: 10.1029/ja094ia11p15041] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Caudal G. A self-consistent model of Jupiter's magnetodisc including the effects of centrifugal force and pressure. ACTA ACUST UNITED AC 1986. [DOI: 10.1029/ja091ia04p04201] [Citation(s) in RCA: 89] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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37
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Summers D, Siscoe GL. Coupled low-energy - ring current plasma diffusion in the Jovian magnetosphere. ACTA ACUST UNITED AC 1985. [DOI: 10.1029/ja090ia03p02665] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Cheng AF, Paonessa MT, Maclennan CG, Lanzerotti LJ, Armstrong TP. Longitudinal asymmetry in the Io plasma torus. ACTA ACUST UNITED AC 1984. [DOI: 10.1029/ja089ia05p03005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hill TW, Goertz CK, Thomsen MF. Some consequences of corotating magnetospheric convection. ACTA ACUST UNITED AC 1982. [DOI: 10.1029/ja087ia10p08311] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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