Formation and Structure of a Current Sheet in Pulsed-Power Driven Magnetic Reconnection Experiments

Hare, J. D.; Lebedev, S. V.; Suttle, L. G.; Loureiro, N. F.; Ciardi, A.; Burdiak, G. C.; Chittenden, J. P.; Clayson, T.; Eardley, S. J.; Garcia, C.; Halliday, J. W. D.; Niasse, N.; Robinson, T.; Smith, R. A.; Stuart, N.; Suzuki-Vidal, F.; Swadling, G. F.; Ma, J.; Wu, J.

doi:10.7910/DVN/LS7QMZ

Title: Formation and Structure of a Current Sheet in Pulsed-Power Driven Magnetic Reconnection Experiments

Abstract

We describe magnetic reconnection experiments using a new, pulsed-power driven experimental platform in which the inflows are super-sonic but sub-Alfvenic. The intrinsically magnetised plasma flows are long lasting, producing a well-defined reconnection layer that persists over many hydrodynamic time scales. The layer is diagnosed using a suite of high resolution laser based diagnostics which provide measurements of the electron density, reconnecting magnetic field, inflow and outflow velocities and the electron and ion temperatures. Using these measurements we observe a balance between the power flow into and out of the layer, and we find that the heating rates for the electrons and ions are significantly in excess of the classical predictions. The formation of plasmoids is observed in laser interferometry and optical self-emission, and the magnetic O-point structure of these plasmoids is confrmed using magnetic probes.

Authors:: Hare, J. D.; Lebedev, S. V.; Suttle, L. G.; Loureiro, N. F.; Ciardi, A.; Burdiak, G. C.; Chittenden, J. P.; Clayson, T.; Eardley, S. J.; Garcia, C.; Halliday, J. W. D.; Niasse, N.; Robinson, T.; Smith, R. A.; Stuart, N.; Suzuki-Vidal, F.; Swadling, G. F.; Ma, J.; Wu, J.

Publication Date:: 2019-01-10

DOE Contract Number:: SC0016215; SC0001063

Research Org.:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center; Univ. of Rochester, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

OSTI Identifier:: 1880972

DOI:: https://doi.org/10.7910/DVN/LS7QMZ

Citation Formats


                    Hare, J. D., Lebedev, S. V., Suttle, L. G., Loureiro, N. F., Ciardi, A., Burdiak, G. C., Chittenden, J. P., Clayson, T., Eardley, S. J., Garcia, C., Halliday, J. W. D., Niasse, N., Robinson, T., Smith, R. A., Stuart, N., Suzuki-Vidal, F., Swadling, G. F., Ma, J., and Wu, J. Formation and Structure of a Current Sheet in Pulsed-Power Driven Magnetic Reconnection Experiments.  United States: N. p., 2019. 
        Web.  doi:10.7910/DVN/LS7QMZ.

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                    Hare, J. D., Lebedev, S. V., Suttle, L. G., Loureiro, N. F., Ciardi, A., Burdiak, G. C., Chittenden, J. P., Clayson, T., Eardley, S. J., Garcia, C., Halliday, J. W. D., Niasse, N., Robinson, T., Smith, R. A., Stuart, N., Suzuki-Vidal, F., Swadling, G. F., Ma, J., & Wu, J. Formation and Structure of a Current Sheet in Pulsed-Power Driven Magnetic Reconnection Experiments.  United States.  doi:https://doi.org/10.7910/DVN/LS7QMZ

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                    Hare, J. D., Lebedev, S. V., Suttle, L. G., Loureiro, N. F., Ciardi, A., Burdiak, G. C., Chittenden, J. P., Clayson, T., Eardley, S. J., Garcia, C., Halliday, J. W. D., Niasse, N., Robinson, T., Smith, R. A., Stuart, N., Suzuki-Vidal, F., Swadling, G. F., Ma, J., and Wu, J. 2019.  
"Formation and Structure of a Current Sheet in Pulsed-Power Driven Magnetic Reconnection Experiments".  United States.  doi:https://doi.org/10.7910/DVN/LS7QMZ.  https://www.osti.gov/servlets/purl/1880972. Pub date:Thu Jan 10 00:00:00 EST 2019

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@article{osti_1880972,

  title        = {Formation and Structure of a Current Sheet in Pulsed-Power Driven Magnetic Reconnection Experiments},

  author       = {Hare, J. D. and Lebedev, S. V. and Suttle, L. G. and Loureiro, N. F. and Ciardi, A. and Burdiak, G. C. and Chittenden, J. P. and Clayson, T. and Eardley, S. J. and Garcia, C. and Halliday, J. W. D. and Niasse, N. and Robinson, T. and Smith, R. A. and Stuart, N. and Suzuki-Vidal, F. and Swadling, G. F. and Ma, J. and Wu, J.},

  abstractNote = {We describe magnetic reconnection experiments using a new, pulsed-power driven experimental platform in which the inflows are super-sonic but sub-Alfvenic. The intrinsically magnetised plasma flows are long lasting, producing a well-defined reconnection layer that persists over many hydrodynamic time scales. The layer is diagnosed using a suite of high resolution laser based diagnostics which provide measurements of the electron density, reconnecting magnetic field, inflow and outflow velocities and the electron and ion temperatures. Using these measurements we observe a balance between the power flow into and out of the layer, and we find that the heating rates for the electrons and ions are significantly in excess of the classical predictions. The formation of plasmoids is observed in laser interferometry and optical self-emission, and the magnetic O-point structure of these plasmoids is confrmed using magnetic probes.},

  doi          = {10.7910/DVN/LS7QMZ},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2019},

  month        = {1}

}

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