Increasing the magnetic-field capability of the magneto-inertial fusion electrical discharge system using an inductively coupled coil

Barnak, D. H.; Davies, J. R.; Fiksel, G.; Chang, P. -Y.; Zabir, E.; Betti, R.

doi:10.1063/1.5012531

Title: Increasing the magnetic-field capability of the magneto-inertial fusion electrical discharge system using an inductively coupled coil

Journal Article · 02 March 2018 · Review of Scientific Instruments

DOI: https://doi.org/10.1063/1.5012531 · OSTI ID:1540146

^[1]; Davies, J. R. ^[2]; Fiksel, G. ^[3];

^[4]; Zabir, E. ^[5]; Betti, R. ^[2]

Univ. of Rochester, NY (United States). Lab. for Laser Energetics, and Dept. of Physics and Astronomy
Univ. of Rochester, NY (United States). Lab. for Laser Energetics, and Dept. of Mechanical Engineering
Univ. of Michigan, Ann Arbor, MI (United States). Center for Ultrafast Optical Science
National Cheng Kung Univ., Tainan City (Taiwan). Inst. of Space and Plasma Sciences
Univ. of Rochester, NY (United States). Dept. of Mechanical Engineering

Magnetized high energy density physics (HEDP) is a very active and relatively unexplored field that has applications in inertial confinement fusion, astrophysical plasma science, and basic plasma physics. A self-contained device, the Magneto-Inertial Fusion Electrical Discharge System, MIFEDS [G. Fiksel et al., Rev. Sci. Instrum. 86, 016105 (2015)], was developed at the Laboratory for Laser Energetics to conduct magnetized HEDP experiments on both the OMEGA [T. R. Boehly et al., Opt. Commun. 133, 495–506 (1997)] and OMEGA EP [J. H. Kelly et al., J. Phys. IV France 133, 75 (2006) and L. J. Waxer et al., Opt. Photonics News 16, 30 (2005)] laser systems. Extremely high magnetic fields are a necessity for magnetized HEDP, and the need for stronger magnetic fields continues to drive the redevelopment of the MIFEDS device. It is proposed in this paper that a magnetic coil that is inductively coupled rather than directly connecting to the MIFEDS device can increase the overall strength of the magnetic field for HEDP experiments by increasing the efficiency of energy transfer while decreasing the effective magnetized volume. A brief explanation of the energy delivery of the MIFEDS device illustrates the benefit of inductive coupling and is compared to that of direct connection for varying coil size and geometry. Finally, a prototype was constructed to demonstrate a 7-fold increase in energy delivery using inductive coupling.

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Research Organization:: Univ. of Rochester, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC); USDOE

Grant/Contract Number:: SC0016258

OSTI ID:: 1540146

Alternate ID(s):: OSTI ID: 1423501

Journal Information:: Review of Scientific Instruments, Vol. 89, Issue 3; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 10 works

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References (10)

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