Creation of large temperature anisotropies in a laboratory plasma

Beatty, C. B.; Steinberger, T. E.; Aguirre, E. M.; Beatty, R. A.; Klein, K. G.; McLaughlin, J. W.; Neal, L.; Scime, E. E.

doi:10.1063/5.0029315

This content will become publicly available on December 1, 2021

Title: Creation of large temperature anisotropies in a laboratory plasma

Abstract

Ion temperature anisotropy in an expanding magnetized plasma is investigated using laser induced fluorescence. Parallel and perpendicular ion velocity distribution functions (IVDFs) were measured simultaneously with high spatial resolution in the expanding plasma. Large ion temperature anisotropies (T_⊥i/T_∥i ~ 10) are observed in a conical region at the periphery of the expanding plasma plume. A simple 2D Boris stepper model that incorporates the measured electric field structure is able to reproduce the gross features of the measured perpendicular IVDFs. Here, a Nyquist stability analysis of the measured IVDFs suggests that multiple instabilities with k_⊥ρi ~ 1 and k_||ρi ~ 0.2 are likely to be excited in these plasmas.

Authors:

Beatty, C. B. ^[1];

^[1];

^[2]; Beatty, R. A. ^[1];

^[3];

^[4];

^[1];

^[1]

West Virginia Univ., Morgantown, WV (United States)
Auburn Univ., AL (United States)
Univ. of Arizona, Tucson, AZ (United States)
West Virginia Univ., Morgantown, WV (United States); Univ. of Iowa, Iowa City, IA (United States)

Publication Date:: 2020-12-01

Research Org.:: West Virginia Univ., Morgantown, WV (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); National Science Foundation (NSF); National Aeronautics and Space Administration (NASA)

OSTI Identifier:: 1755895

Grant/Contract Number:: SC0020294; PHY-1902111; 80NSSC19K0912

Resource Type:: Accepted Manuscript

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 27; Journal Issue: 12; 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; Laser induced fluorescence; Plasma sources; Plasma properties and parameters; Plasma waves; Plasma sheaths; Plasma instabilities; Plasma heating; Solar wind; Data visualization

Citation Formats


                    Beatty, C. B., Steinberger, T. E., Aguirre, E. M., Beatty, R. A., Klein, K. G., McLaughlin, J. W., Neal, L., and Scime, E. E.. Creation of large temperature anisotropies in a laboratory plasma.  United States: N. p., 2020. 
Web.  https://doi.org/10.1063/5.0029315.

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                    Beatty, C. B., Steinberger, T. E., Aguirre, E. M., Beatty, R. A., Klein, K. G., McLaughlin, J. W., Neal, L., & Scime, E. E.. Creation of large temperature anisotropies in a laboratory plasma.  United States.  https://doi.org/10.1063/5.0029315

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                    Beatty, C. B., Steinberger, T. E., Aguirre, E. M., Beatty, R. A., Klein, K. G., McLaughlin, J. W., Neal, L., and Scime, E. E.. Tue .  
"Creation of large temperature anisotropies in a laboratory plasma".  United States.  https://doi.org/10.1063/5.0029315.  https://www.osti.gov/servlets/purl/1755895.

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@article{osti_1755895,

  title        = {Creation of large temperature anisotropies in a laboratory plasma},

  author       = {Beatty, C. B. and Steinberger, T. E. and Aguirre, E. M. and Beatty, R. A. and Klein, K. G. and McLaughlin, J. W. and Neal, L. and Scime, E. E.},

  abstractNote = {Ion temperature anisotropy in an expanding magnetized plasma is investigated using laser induced fluorescence. Parallel and perpendicular ion velocity distribution functions (IVDFs) were measured simultaneously with high spatial resolution in the expanding plasma. Large ion temperature anisotropies (T⊥i/T∥i ~ 10) are observed in a conical region at the periphery of the expanding plasma plume. A simple 2D Boris stepper model that incorporates the measured electric field structure is able to reproduce the gross features of the measured perpendicular IVDFs. Here, a Nyquist stability analysis of the measured IVDFs suggests that multiple instabilities with k⊥ρi ~ 1 and k||ρi ~ 0.2 are likely to be excited in these plasmas.},

  doi          = {10.1063/5.0029315},

  journal      = {Physics of Plasmas},

  number       = 12,

  volume       = 27,

  place        = {United States},

  year         = {2020},

  month        = {12}

}

Copy to clipboard

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Works referenced in this record:

Ion Kinetics in the Solar Wind: Coupling Global Expansion to Local Microphysics
journal, April 2011

Matteini, Lorenzo; Hellinger, Petr; Landi, Simone
Space Science Reviews, Vol. 172, Issue 1-4
DOI: 10.1007/s11214-011-9774-z

Solar Wind Temperature Anisotropies
conference, January 2003

Kasper, J. C.
SOLAR WIND TEN: Proceedings of the Tenth International Solar Wind Conference, AIP Conference Proceedings
DOI: 10.1063/1.1618653

Ion temperature anisotropy limitation in high beta plasmas
journal, May 2000

Scime, Earl E.; Keiter, Paul A.; Balkey, Matthew M.
Physics of Plasmas, Vol. 7, Issue 5
DOI: 10.1063/1.874036

Magnetic Fluctuation Power Near Proton Temperature Anisotropy Instability Thresholds in the Solar Wind
journal, November 2009

Bale, S. D.; Kasper, J. C.; Howes, G. G.
Physical Review Letters, Vol. 103, Issue 21
DOI: 10.1103/PhysRevLett.103.211101

Multi-Species Measurements of the Firehose and Mirror Instability Thresholds in the Solar wind
journal, July 2016

Chen, C. H. K.; Matteini, L.; Schekochihin, A. A.
The Astrophysical Journal, Vol. 825, Issue 2
DOI: 10.3847/2041-8205/825/2/L26

The multi-scale nature of the solar wind
journal, December 2019

Verscharen, Daniel; Klein, Kristopher G.; Maruca, Bennett A.
Living Reviews in Solar Physics, Vol. 16, Issue 1
DOI: 10.1007/s41116-019-0021-0

Proton temperature anisotropy upper bound
journal, December 1997

Gary, S. Peter; Wang, Joseph; Winske, Dan
Journal of Geophysical Research: Space Physics, Vol. 102, Issue A12
DOI: 10.1029/97JA01726

Solar wind proton temperature anisotropy: Linear theory and WIND/SWE observations
journal, January 2006

Hellinger, Petr; Trávníček, Pavel; Kasper, Justin C.
Geophysical Research Letters, Vol. 33, Issue 9
DOI: 10.1029/2006GL025925

Ensemble Simulations of Proton Heating in the Solar wind via Turbulence and ion Cyclotron Resonance
journal, July 2014

Cranmer, Steven R.
The Astrophysical Journal Supplement Series, Vol. 213, Issue 1
DOI: 10.1088/0067-0049/213/1/16

Ion Heating in Inhomogeneous Expanding Solar wind Plasma: the role of Parallel and Oblique Ion-Cyclotron Waves
journal, January 2015

Ozak, N.; Ofman, L.; Viñas, A. -F.
The Astrophysical Journal, Vol. 799, Issue 1
DOI: 10.1088/0004-637X/799/1/77

Solar Wind Temperature Isotropy
journal, October 2019

Yoon, P. H.; Seough, J.; Salem, C. S.
Physical Review Letters, Vol. 123, Issue 14
DOI: 10.1103/PhysRevLett.123.145101

Collisionless Isotropization of the Solar-Wind Protons by Compressive Fluctuations and Plasma Instabilities
journal, November 2016

Verscharen, Daniel; Chandran, Benjamin D. G.; Klein, Kristopher G.
The Astrophysical Journal, Vol. 831, Issue 2
DOI: 10.3847/0004-637X/831/2/128

Observational test of local proton cyclotron instability in the Earth's magnetosphere
journal, October 1996

Anderson, B. J.; Denton, R. E.; Ho, G.
Journal of Geophysical Research: Space Physics, Vol. 101, Issue A10
DOI: 10.1029/96JA01251

Limit on stably trapped particle fluxes
journal, January 1966

Kennel, C. F.; Petschek, H. E.
Journal of Geophysical Research, Vol. 71, Issue 1
DOI: 10.1029/JZ071i001p00001

Electromagnetic ion cyclotron instability driven by ion energy anisotropy in high-beta plasmas
journal, January 1975

Davidson, R. C.; Ogden, Joan M.
Physics of Fluids, Vol. 18, Issue 8
DOI: 10.1063/1.861253

Alfvén ion-cyclotron instability in tandem-mirror plasmas. I
journal, January 1984

Smith, Gary R.
Physics of Fluids, Vol. 27, Issue 6
DOI: 10.1063/1.864773

MMS Observations of Beta-dependent Constraints on Ion Temperature Anisotropy in Earth’s Magnetosheath
journal, October 2018

Maruca, Bennett A.; Chasapis, A.; Gary, S. P.
The Astrophysical Journal, Vol. 866, Issue 1
DOI: 10.3847/1538-4357/aaddfb

Beta-dependent upper bound on ion temperature anisotropy in a laboratory plasma
journal, March 2000

Keiter, Paul A.; Scime, Earl E.; Balkey, Matthew M.
Physics of Plasmas, Vol. 7, Issue 3
DOI: 10.1063/1.873872

Spatial structure of ion beams in an expanding plasma
journal, December 2017

Aguirre, E. M.; Scime, E. E.; Thompson, D. S.
Physics of Plasmas, Vol. 24, Issue 12
DOI: 10.1063/1.5003722

Neutral density profiles in argon helicon plasmas
journal, September 2007

Keesee, A. M.; Scime, E. E.
Plasma Sources Science and Technology, Vol. 16, Issue 4
DOI: 10.1088/0963-0252/16/4/008

Laser induced fluorescence of Ar-I metastables in the presence of a magnetic field
journal, June 2018

Thompson, D. S.; Steinberger, T. E.; Keesee, A. M.
Plasma Sources Science and Technology, Vol. 27, Issue 6
DOI: 10.1088/1361-6595/aac963

The hot hELicon eXperiment (HELIX) and the large experiment on instabilities and anisotropy (LEIA)
journal, October 2014

Scime, E. E.; Keiter, P. A.; Balkey, M. M.
Journal of Plasma Physics, Vol. 81, Issue 1
DOI: 10.1017/S0022377814000890

Current-free double-layer formation in a high-density helicon discharge
journal, March 2003

Charles, Christine; Boswell, Rod
Applied Physics Letters, Vol. 82, Issue 9
DOI: 10.1063/1.1557319

Ion acceleration in plasmas emerging from a helicon-heated magnetic-mirror device
journal, June 2003

Cohen, S. A.; Siefert, N. S.; Stange, S.
Physics of Plasmas, Vol. 10, Issue 6
DOI: 10.1063/1.1568342

Parallel velocity and temperature of argon ions in an expanding, helicon source driven plasma
journal, May 2004

Sun, Xuan; Biloiu, Costel; Hardin, Robert
Plasma Sources Science and Technology, Vol. 13, Issue 3
DOI: 10.1088/0963-0252/13/3/001

Ion heating and flows in a high power helicon source
journal, June 2017

Thompson, Derek S.; Agnello, Riccardo; Furno, Ivo
Physics of Plasmas, Vol. 24, Issue 6
DOI: 10.1063/1.4985328

Fast, hot electron production and ion acceleration in a helicon inductive plasma
journal, September 2016

Sung, Yung-Ta; Li, Yan; Scharer, John E.
Physics of Plasmas, Vol. 23, Issue 9
DOI: 10.1063/1.4962758

In situ electrostatic characterisation of ion beams in the region of ion acceleration
journal, February 2018

Bennet, Alexander; Charles, Christine; Boswell, Rod
Physics of Plasmas, Vol. 25, Issue 2
DOI: 10.1063/1.5017049

Selective radial release of hot, magnetised electrons downstream of a low-pressure expanding plasma
journal, August 2018

Bennet, Alexander; Charles, Christine; Boswell, Rod
Journal of Physics D: Applied Physics, Vol. 51, Issue 37
DOI: 10.1088/1361-6463/aad74f

Non-local plasma generation in a magnetic nozzle
journal, July 2019

Bennet, Alexander; Charles, Christine; Boswell, Rod
Physics of Plasmas, Vol. 26, Issue 7
DOI: 10.1063/1.5098484

Effect of radial plasma transport at the magnetic throat on axial ion beam formation
journal, August 2016

Zhang, Yunchao; Charles, Christine; Boswell, Rod
Physics of Plasmas, Vol. 23, Issue 8
DOI: 10.1063/1.4960828

Particle-in-cell charged-particle simulations, plus Monte Carlo collisions with neutral atoms, PIC-MCC
journal, April 1991

Birdsall, C. K.
IEEE Transactions on Plasma Science, Vol. 19, Issue 2
DOI: 10.1109/27.106800

Why is Boris algorithm so good?
journal, August 2013

Qin, Hong; Zhang, Shuangxi; Xiao, Jianyuan
Physics of Plasmas, Vol. 20, Issue 8
DOI: 10.1063/1.4818428

On particle movers in cylindrical geometry for Particle-In-Cell simulations
journal, November 2013

Delzanno, G. L.; Camporeale, E.
Journal of Computational Physics, Vol. 253
DOI: 10.1016/j.jcp.2013.07.007

Three-dimensional cross-field flows at the plasma-material interface in an oblique magnetic field
journal, July 2020

Thompson, Derek S.; Khaziev, Rinat; Fortney-Henriquez, Miguel
Physics of Plasmas, Vol. 27, Issue 7
DOI: 10.1063/5.0012442

Majority of Solar Wind Intervals Support Ion-Driven Instabilities
journal, May 2018

Klein, K. G.; Alterman, B. L.; Stevens, M. L.
Physical Review Letters, Vol. 120, Issue 20
DOI: 10.1103/PhysRevLett.120.205102

Linear Stability in the Inner Heliosphere: Helios Re-evaluated
journal, December 2019

Klein, Kristopher G.; Martinović, Mihailo; Stansby, David
The Astrophysical Journal, Vol. 887, Issue 2
DOI: 10.3847/1538-4357/ab5802

Applying Nyquist's method for stability determination to solar wind observations
journal, October 2017

Klein, Kristopher G.; Kasper, Justin C.; Korreck, K. E.
Journal of Geophysical Research: Space Physics, Vol. 122, Issue 10
DOI: 10.1002/2017JA024486

The Dispersion Relations and Instability Thresholds of Oblique Plasma Modes in the Presence of an ion beam
journal, January 2013

Verscharen, Daniel; Chandran, Benjamin D. G.
The Astrophysical Journal, Vol. 764, Issue 1
DOI: 10.1088/0004-637X/764/1/88

Parker Solar Probe Observations of Proton Beams Simultaneous with Ion-scale Waves
journal, April 2020

Verniero, J. L.; Larson, D. E.; Livi, R.
The Astrophysical Journal Supplement Series, Vol. 248, Issue 1
DOI: 10.3847/1538-4365/ab86af

Proton temperature anisotropy instabilities in the solar wind
journal, March 1976

Gary, S. Peter; Montgomery, M. D.; Feldman, W. C.
Journal of Geophysical Research, Vol. 81, Issue 7
DOI: 10.1029/JA081i007p01241

Current-free double layers: A review
journal, December 2011

Singh, Nagendra
Physics of Plasmas, Vol. 18, Issue 12
DOI: 10.1063/1.3664321

Mirror instability thresholds in suprathermal space plasmas
journal, December 2000

Leubner, M. P.; Schupfer, N.
Journal of Geophysical Research: Space Physics, Vol. 105, Issue A12
DOI: 10.1029/1999JA000447

Drift Mirror Instability in the Magnetosphere
journal, January 1969

Hasegawa, Akira
Physics of Fluids, Vol. 12, Issue 12
DOI: 10.1063/1.1692407

Limits for the Firehose Instability in Space Plasmas
journal, July 2009

Lazar, M.; Poedts, S.
Solar Physics, Vol. 258, Issue 1
DOI: 10.1007/s11207-009-9405-y

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This content will become publicly available on December 1, 2021

Title: Creation of large temperature anisotropies in a laboratory plasma

Abstract

Citation Formats

Ion Kinetics in the Solar Wind: Coupling Global Expansion to Local Microphysics journal, April 2011

Solar Wind Temperature Anisotropies conference, January 2003

Ion temperature anisotropy limitation in high beta plasmas journal, May 2000

Magnetic Fluctuation Power Near Proton Temperature Anisotropy Instability Thresholds in the Solar Wind journal, November 2009

Multi-Species Measurements of the Firehose and Mirror Instability Thresholds in the Solar wind journal, July 2016

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Proton temperature anisotropy upper bound journal, December 1997

Solar wind proton temperature anisotropy: Linear theory and WIND/SWE observations journal, January 2006

Ensemble Simulations of Proton Heating in the Solar wind via Turbulence and ion Cyclotron Resonance journal, July 2014

Ion Heating in Inhomogeneous Expanding Solar wind Plasma: the role of Parallel and Oblique Ion-Cyclotron Waves journal, January 2015

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Collisionless Isotropization of the Solar-Wind Protons by Compressive Fluctuations and Plasma Instabilities journal, November 2016

Observational test of local proton cyclotron instability in the Earth's magnetosphere journal, October 1996

Limit on stably trapped particle fluxes journal, January 1966

Electromagnetic ion cyclotron instability driven by ion energy anisotropy in high-beta plasmas journal, January 1975

Alfvén ion-cyclotron instability in tandem-mirror plasmas. I journal, January 1984

MMS Observations of Beta-dependent Constraints on Ion Temperature Anisotropy in Earth’s Magnetosheath journal, October 2018

Beta-dependent upper bound on ion temperature anisotropy in a laboratory plasma journal, March 2000

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Neutral density profiles in argon helicon plasmas journal, September 2007

Laser induced fluorescence of Ar-I metastables in the presence of a magnetic field journal, June 2018

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Current-free double-layer formation in a high-density helicon discharge journal, March 2003

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Particle-in-cell charged-particle simulations, plus Monte Carlo collisions with neutral atoms, PIC-MCC journal, April 1991

Why is Boris algorithm so good? journal, August 2013

On particle movers in cylindrical geometry for Particle-In-Cell simulations journal, November 2013

Three-dimensional cross-field flows at the plasma-material interface in an oblique magnetic field journal, July 2020

Majority of Solar Wind Intervals Support Ion-Driven Instabilities journal, May 2018

Linear Stability in the Inner Heliosphere: Helios Re-evaluated journal, December 2019

Applying Nyquist's method for stability determination to solar wind observations journal, October 2017

The Dispersion Relations and Instability Thresholds of Oblique Plasma Modes in the Presence of an ion beam journal, January 2013

Parker Solar Probe Observations of Proton Beams Simultaneous with Ion-scale Waves journal, April 2020

Proton temperature anisotropy instabilities in the solar wind journal, March 1976

Current-free double layers: A review journal, December 2011

Mirror instability thresholds in suprathermal space plasmas journal, December 2000

Drift Mirror Instability in the Magnetosphere journal, January 1969

Limits for the Firehose Instability in Space Plasmas journal, July 2009

Ion Kinetics in the Solar Wind: Coupling Global Expansion to Local Microphysics
journal, April 2011

Solar Wind Temperature Anisotropies
conference, January 2003

Ion temperature anisotropy limitation in high beta plasmas
journal, May 2000

Magnetic Fluctuation Power Near Proton Temperature Anisotropy Instability Thresholds in the Solar Wind
journal, November 2009

Multi-Species Measurements of the Firehose and Mirror Instability Thresholds in the Solar wind
journal, July 2016

The multi-scale nature of the solar wind
journal, December 2019

Proton temperature anisotropy upper bound
journal, December 1997

Solar wind proton temperature anisotropy: Linear theory and WIND/SWE observations
journal, January 2006

Ensemble Simulations of Proton Heating in the Solar wind via Turbulence and ion Cyclotron Resonance
journal, July 2014

Ion Heating in Inhomogeneous Expanding Solar wind Plasma: the role of Parallel and Oblique Ion-Cyclotron Waves
journal, January 2015

Solar Wind Temperature Isotropy
journal, October 2019

Collisionless Isotropization of the Solar-Wind Protons by Compressive Fluctuations and Plasma Instabilities
journal, November 2016

Observational test of local proton cyclotron instability in the Earth's magnetosphere
journal, October 1996

Limit on stably trapped particle fluxes
journal, January 1966

Electromagnetic ion cyclotron instability driven by ion energy anisotropy in high-beta plasmas
journal, January 1975

Alfvén ion-cyclotron instability in tandem-mirror plasmas. I
journal, January 1984

MMS Observations of Beta-dependent Constraints on Ion Temperature Anisotropy in Earth’s Magnetosheath
journal, October 2018

Beta-dependent upper bound on ion temperature anisotropy in a laboratory plasma
journal, March 2000

Spatial structure of ion beams in an expanding plasma
journal, December 2017

Neutral density profiles in argon helicon plasmas
journal, September 2007

Laser induced fluorescence of Ar-I metastables in the presence of a magnetic field
journal, June 2018

The hot hELicon eXperiment (HELIX) and the large experiment on instabilities and anisotropy (LEIA)
journal, October 2014

Current-free double-layer formation in a high-density helicon discharge
journal, March 2003

Ion acceleration in plasmas emerging from a helicon-heated magnetic-mirror device
journal, June 2003

Parallel velocity and temperature of argon ions in an expanding, helicon source driven plasma
journal, May 2004

Ion heating and flows in a high power helicon source
journal, June 2017

Fast, hot electron production and ion acceleration in a helicon inductive plasma
journal, September 2016

In situ electrostatic characterisation of ion beams in the region of ion acceleration
journal, February 2018

Selective radial release of hot, magnetised electrons downstream of a low-pressure expanding plasma
journal, August 2018

Non-local plasma generation in a magnetic nozzle
journal, July 2019

Effect of radial plasma transport at the magnetic throat on axial ion beam formation
journal, August 2016

Particle-in-cell charged-particle simulations, plus Monte Carlo collisions with neutral atoms, PIC-MCC
journal, April 1991

Why is Boris algorithm so good?
journal, August 2013

On particle movers in cylindrical geometry for Particle-In-Cell simulations
journal, November 2013

Three-dimensional cross-field flows at the plasma-material interface in an oblique magnetic field
journal, July 2020

Majority of Solar Wind Intervals Support Ion-Driven Instabilities
journal, May 2018

Linear Stability in the Inner Heliosphere: Helios Re-evaluated
journal, December 2019

Applying Nyquist's method for stability determination to solar wind observations
journal, October 2017

The Dispersion Relations and Instability Thresholds of Oblique Plasma Modes in the Presence of an ion beam
journal, January 2013

Parker Solar Probe Observations of Proton Beams Simultaneous with Ion-scale Waves
journal, April 2020

Proton temperature anisotropy instabilities in the solar wind
journal, March 1976

Current-free double layers: A review
journal, December 2011

Mirror instability thresholds in suprathermal space plasmas
journal, December 2000

Drift Mirror Instability in the Magnetosphere
journal, January 1969

Limits for the Firehose Instability in Space Plasmas
journal, July 2009