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

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.5012531· OSTI ID:1540146
ORCiD logo [1];  [2];  [3]; ORCiD logo [4];  [5];  [2]
  1. Univ. of Rochester, NY (United States). Lab. for Laser Energetics, and Dept. of Physics and Astronomy
  2. Univ. of Rochester, NY (United States). Lab. for Laser Energetics, and Dept. of Mechanical Engineering
  3. Univ. of Michigan, Ann Arbor, MI (United States). Center for Ultrafast Optical Science
  4. National Cheng Kung Univ., Tainan City (Taiwan). Inst. of Space and Plasma Sciences
  5. 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.

Research Organization:
Univ. of Rochester, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
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
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

References (11)

Target material dependence of positron generation from high intensity laser-matter interactions journal December 2016
Note: Experimental platform for magnetized high-energy-density plasma studies at the omega laser facility journal January 2015
Diagnosing laser-preheated magnetized plasmas relevant to magnetized liner inertial fusion journal December 2015
Astrophysical particle acceleration mechanisms in colliding magnetized laser-produced plasmas journal September 2017
Production and Use of High Transient Magnetic Fields. II journal November 1957
Rogowski coil calibration on a capacitive discharge rig without the use of a current reference journal February 1990
Use of external magnetic fields in hohlraum plasmas to improve laser-coupling journal January 2015
Initial performance results of the OMEGA laser system journal January 1997
Laser-driven magnetized liner inertial fusion on OMEGA journal May 2017
Magnetic collimation of relativistic positrons and electrons from high intensity laser–matter interactions journal April 2014
OMEGA EP: High-energy petawatt capability for the OMEGA laser facility journal June 2006

Cited By (3)

Inductively coupled 30 T magnetic field platform for magnetized high-energy-density plasma studies journal August 2018
Portable pulsed magnetic field generator for magnetized laser plasma experiments in low vacuum environments journal July 2019
Pulsed magnetic field device for laser plasma experiments at Shenguang-II laser facility journal January 2020

Figures / Tables (8)


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