Implosion of solid liner for compression of field reversed configuration

Degnan, J.H.; Taccetti, J. M.; Cavazos, T.; Clark, David; Coffey, S.K.; Faehl, R.J.; Fresé, Michael; Fulton, Daniel; Gueits, J.C.; Gale, D.; Hussey, T. W.; Intrator, T.; Kirkpatrick, Ronald C.; Kiuttu, G.; Lehr, F.M.; Letterio, J.D.; Lindemuth, I.R.; McCullough, W.F.; Moses, R.W.; Peterkin, R.E.; Reinovsky, R.E.; Roderick, N. F.; Ruden, E.L.; Shlachter, J.S.; Schoenberg, Kurt F.; Siemon, R. E.; Sommars, W.; Turchi, P. J.; Wurden, G. A.; Wysocki, F. J.

doi:10.1109/27.912947

Cited by 45 publications

(23 citation statements)

References 13 publications

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“…Experiments at AFRL's Shiva Star facility during the past two decades have shown that high-current-driven implosions of initially solid shells up to 10 centimeters in diameter can produce sufficiently high pressures to drive targets to a radial compression of 10 times or more without substantial degradation in implosion quality from a class of Rayleigh-Taylor-like fluid instabilities [7,8]. These results provided confidence that MTF is possible in the Shiva Star facility.…”

Section: Plasma Is Intermediate In Density Between Magnetic Fusion Ensupporting

confidence: 58%

“…Like ICF, MTF requires a pulsed high pressure to create a high-density fuel, but because the applied magnetic field suppresses thermal conduction, the high pressure can be created over a longer timescale than that required for ICF, and the compression process can proceed nearly adiabatically. targets to a radial compression of 10 times or more without substantial degradation in implosion quality from a class of Rayleigh-Taylor-like fluid instabilities [7,8]. These results provided confidence that MTF is possible in the Shiva Star facility.…”

supporting

confidence: 56%

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High Energy Research and Applications (HERA) Pulsed Power and Pulsed Power Systems R&D for Magnetized Target Fusion Using Field Reversed Configurations (MTF-FRC)

Kiuttu¹,

Coffey²,

Camacho³

et al. 2013

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Section: Plasma Is Intermediate In Density Between Magnetic Fusion Ensupporting

confidence: 58%

supporting

confidence: 56%

High Energy Research and Applications (HERA) Pulsed Power and Pulsed Power Systems R&D for Magnetized Target Fusion Using Field Reversed Configurations (MTF-FRC)

Kiuttu¹,

Coffey²,

Camacho³

et al. 2013

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“…The scale and number of macron launchers required for the liner can be readily estimated by what was investigated in the MTF liner experiments performed at AFRL [5]. Here a conventional Aluminum shell liner of roughly 300 g mass was imploded using the 4.5 MJ Shiva Star capacitor bank.…”

Section: A Macroparticle (Macron) Formed Liner Conceptmentioning

confidence: 99%

Macron Formed Liner Compression as a Practical Method for Enabling Magneto-Inertial Fusion

Slough¹

2011

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“…1 The existing field reversed experiment liner ͑FRX-L͒ uses a field reversed -pinch to form field reversed configuration ͑FRC͒ plasmas, which will be compressed by an imploding aluminum flux conserver ͑liner͒ to achieve fusion relevant conditions. [2][3][4][5][6][7][8][9][10][11][12] FRC formation for MTF requires ͑1͒ substantial trapping of initial magnetic flux to achieve high pressures and Ohmic heating, with FRC lifetimes sufficient for ͑2͒ FRC translation into a compression region. For these reasons, integrated magnetic system design and FRC formation modeling must include driven magnetic coils, passive magnetic shields, and the plasma in the formation region.…”

Section: Magnetic Design Calculation and Frc Formation Modeling For Tmentioning

confidence: 99%

Magnetic design calculation and FRC formation modeling for the field reversed experiment liner

Dorf

Intrator

Awe

et al. 2008

Journal of Applied Physics

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Integrated magnetic modeling and design are important to meet the requirements for (1) formation, (2) translation, and (3) compression of a field reversed configuration (FRC) for magnetized target fusion. Off-the-shelf solutions do not exist for many generic design issues. A predictive capability for time-dependent magnetic diffusion in realistically complicated geometry is essential in designing the experiment. An eddy-current code was developed and used to compute the mutual inductances between driven magnetic coils and passive magnetic shields (flux excluder plates) to calculate the self-consistent axisymmetric magnetic fields during the first two stages. The plasma in the formation stage was modeled as an immobile solid cylinder with selectable constant resistivity and magnetic flux that was free to readjust itself. It was concluded that (1) use of experimentally obtained anomalously large plasma resistivity in magnetic diffusion simulations is sufficient to predict magnetic reconnection and FRC formation, (2) comparison of predicted and experimentally observed timescales for FRC Ohmic decay shows good agreement, and (3) for the typical range of resistivities, the magnetic null radius decay rate scales linearly with resistivity. The last result can be used to predict the rate of change in magnetic flux outside of the separatrix (equal to the back-emf loop voltage), and thus estimate a minimum θ-coil loop voltage required to form an FRC.

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Implosion of solid liner for compression of field reversed configuration

Cited by 45 publications

References 13 publications

High Energy Research and Applications (HERA) Pulsed Power and Pulsed Power Systems R&D for Magnetized Target Fusion Using Field Reversed Configurations (MTF-FRC)

High Energy Research and Applications (HERA) Pulsed Power and Pulsed Power Systems R&D for Magnetized Target Fusion Using Field Reversed Configurations (MTF-FRC)

Macron Formed Liner Compression as a Practical Method for Enabling Magneto-Inertial Fusion

Magnetic design calculation and FRC formation modeling for the field reversed experiment liner

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