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Pulsed-coil magnet systems for applying 10-30 Tesla Fields to cm-scale targets on Sandia's Z facility

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4902566· OSTI ID:1183103

We have successfully integrated the capability to apply uniform, high magnetic fields (10–30 T) to high energy density experiments on the Z facility. This system uses an 8-mF, 15-kV capacitor bank to drive large-bore (5 cm diameter), high-inductance (1–3 mH) multi-turn, multi-layer electromagnets that slowly magnetize the conductive targets used on Z over several milliseconds (time to peak field of 2–7 ms). This system was commissioned in February 2013 and has been used successfully to magnetize more than 30 experiments up to 10 T that have produced exciting and surprising physics results. These experiments used split-magnet topologies to maintain diagnostic lines of sight to the target. We then describe the design, integration, and operation of the pulsed coil system into the challenging and harsh environment of the Z Machine. We also describe our plans and designs for achieving fields up to 20 T with a reduced-gap split-magnet configuration, and up to 30 T with a solid magnet configuration in pursuit of the Magnetized Liner Inertial Fusion concept.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1183103
Report Number(s):
SAND--2014-17070J; 537039
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 12 Vol. 85; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Experimental Demonstration of Fusion-Relevant Conditions in Magnetized Liner Inertial Fusion journal October 2014
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  • Haill, Thomas A.; Alexander, C. Scott; Dalton, Devon G.
  • 2013 IEEE Pulsed Power and Plasma Science Conference (PPPS 2013), 2013 19th IEEE Pulsed Power Conference (PPC) https://doi.org/10.1109/PPC.2013.6627642
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Cited By (13)

Demonstration of thermonuclear conditions in magnetized liner inertial fusion experimentsa) journal May 2015
Seeded and unseeded helical modes in magnetized, non-imploding cylindrical liner-plasmas journal October 2016
Discrete helical modes in imploding and exploding cylindrical, magnetized liners journal December 2016
Minimizing scatter-losses during pre-heat for magneto-inertial fusion targets journal February 2018
Evolution of sausage and helical modes in magnetized thin-foil cylindrical liners driven by a Z-pinch journal May 2018
Megagauss-level magnetic field production in cm-scale auto-magnetizing helical liners pulsed to 500 kA in 125 ns journal May 2018
Scaling of magnetized inertial fusion with drive current rise-time journal August 2018
Enhancing performance of magnetized liner inertial fusion at the Z facility journal November 2018
Origins and effects of mix on magnetized liner inertial fusion target performance journal January 2019
Implosion of auto-magnetizing helical liners on the Z facility journal May 2019
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
Experimental Demonstration of the Stabilizing Effect of Dielectric Coatings on Magnetically Accelerated Imploding Metallic Liners journal February 2016

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