Design and testing of a magnetically driven implosion peak current diagnostic
Abstract
We report that a critical component of the magnetically driven implosion experiments at Sandia National Laboratories is the delivery of high-current, 10s of MA, from the Z pulsed power facility to a target. In order to assess the performance of the experiment, it is necessary to measure the current delivered to the target. Recent Magnetized Liner Inertial Fusion (MagLIF) experiments have included velocimetry diagnostics, such as PDV (Photonic Doppler Velocimetry) or Velocity Interferometer System for Any Reflector, in the final power feed section in order to infer the load current as a function of time. However, due to the nonlinear volumetrically distributed magnetic force within a velocimetry flyer, a complete time-dependent load current unfold is typically a time-intensive process and the uncertainties in the unfold can be difficult to assess. In this paper, we discuss how a PDV diagnostic can be simplified to obtain a peak current by sufficiently increasing the thickness of the flyer. This effectively keeps the magnetic force localized to the flyer surface, resulting in fast and highly accurate measurements of the peak load current. Additionally, we show the results of experimental peak load current measurements from the PDV diagnostic in recent MagLIF experiments.
- Authors:
-
[1];
[1];
[1];
[1];
[1];
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- National Security Technologies, LLC, Albuquerque, NM (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1485837
- Alternate Identifier(s):
- OSTI ID: 1433410
- Report Number(s):
- SAND-2018-3879J
Journal ID: ISSN 1070-664X; 670111
- Grant/Contract Number:
- AC04-94AL85000; NA0003525
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 25; Journal Issue: 4; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Hess, Mark Harry, Peterson, Kyle J., Ampleford, David J., Hutsel, Brian Thomas, Jennings, Christopher Ashley, Gomez, Matthew R., Dolan, Daniel H., Robertson, Grafton Kincannon, Payne, Sheri L., Stygar, William A., Martin, Matthew R., and Sinars, Daniel B. Design and testing of a magnetically driven implosion peak current diagnostic. United States: N. p., 2018.
Web. doi:10.1063/1.5024374.
Hess, Mark Harry, Peterson, Kyle J., Ampleford, David J., Hutsel, Brian Thomas, Jennings, Christopher Ashley, Gomez, Matthew R., Dolan, Daniel H., Robertson, Grafton Kincannon, Payne, Sheri L., Stygar, William A., Martin, Matthew R., & Sinars, Daniel B. Design and testing of a magnetically driven implosion peak current diagnostic. United States. https://doi.org/10.1063/1.5024374
Hess, Mark Harry, Peterson, Kyle J., Ampleford, David J., Hutsel, Brian Thomas, Jennings, Christopher Ashley, Gomez, Matthew R., Dolan, Daniel H., Robertson, Grafton Kincannon, Payne, Sheri L., Stygar, William A., Martin, Matthew R., and Sinars, Daniel B. Tue .
"Design and testing of a magnetically driven implosion peak current diagnostic". United States. https://doi.org/10.1063/1.5024374. https://www.osti.gov/servlets/purl/1485837.
@article{osti_1485837,
title = {Design and testing of a magnetically driven implosion peak current diagnostic},
author = {Hess, Mark Harry and Peterson, Kyle J. and Ampleford, David J. and Hutsel, Brian Thomas and Jennings, Christopher Ashley and Gomez, Matthew R. and Dolan, Daniel H. and Robertson, Grafton Kincannon and Payne, Sheri L. and Stygar, William A. and Martin, Matthew R. and Sinars, Daniel B.},
abstractNote = {We report that a critical component of the magnetically driven implosion experiments at Sandia National Laboratories is the delivery of high-current, 10s of MA, from the Z pulsed power facility to a target. In order to assess the performance of the experiment, it is necessary to measure the current delivered to the target. Recent Magnetized Liner Inertial Fusion (MagLIF) experiments have included velocimetry diagnostics, such as PDV (Photonic Doppler Velocimetry) or Velocity Interferometer System for Any Reflector, in the final power feed section in order to infer the load current as a function of time. However, due to the nonlinear volumetrically distributed magnetic force within a velocimetry flyer, a complete time-dependent load current unfold is typically a time-intensive process and the uncertainties in the unfold can be difficult to assess. In this paper, we discuss how a PDV diagnostic can be simplified to obtain a peak current by sufficiently increasing the thickness of the flyer. This effectively keeps the magnetic force localized to the flyer surface, resulting in fast and highly accurate measurements of the peak load current. Additionally, we show the results of experimental peak load current measurements from the PDV diagnostic in recent MagLIF experiments.},
doi = {10.1063/1.5024374},
journal = {Physics of Plasmas},
number = 4,
volume = 25,
place = {United States},
year = {Tue Apr 17 00:00:00 EDT 2018},
month = {Tue Apr 17 00:00:00 EDT 2018}
}
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Works referenced in this record:
Pulsed-power-driven cylindrical liner implosions of laser preheated fuel magnetized with an axial field
journal, May 2010
- Slutz, S. A.; Herrmann, M. C.; Vesey, R. A.
- Physics of Plasmas, Vol. 17, Issue 5
Practical Improvements to the Lee-More Conductivity Near the Metal-Insulator Transition
journal, March 2001
- Desjarlais, M. P.
- Contributions to Plasma Physics, Vol. 41, Issue 2-3
Experimental Demonstration of Fusion-Relevant Conditions in Magnetized Liner Inertial Fusion
journal, October 2014
- Gomez, M. R.; Slutz, S. A.; Sefkow, A. B.
- Physical Review Letters, Vol. 113, Issue 15
Accuracy and precision in photonic Doppler velocimetry
journal, May 2010
- Dolan, D. H.
- Review of Scientific Instruments, Vol. 81, Issue 5
Laser interferometer for measuring high velocities of any reflecting surface
journal, November 1972
- Barker, L. M.; Hollenbach, R. E.
- Journal of Applied Physics, Vol. 43, Issue 11
Compact system for high-speed velocimetry using heterodyne techniques
journal, August 2006
- Strand, O. T.; Goosman, D. R.; Martinez, C.
- Review of Scientific Instruments, Vol. 77, Issue 8
Shock timing technique for the National Ignition Facility
journal, May 2001
- Munro, David H.; Celliers, Peter M.; Collins, Gilbert W.
- Physics of Plasmas, Vol. 8, Issue 5
Solid liner implosions on Z for producing multi-megabar, shockless compressions
journal, May 2012
- Martin, M. R.; Lemke, R. W.; McBride, R. D.
- Physics of Plasmas, Vol. 19, Issue 5
Magnetically driven hyper-velocity launch capability at the Sandia Z accelerator
journal, June 2011
- Lemke, R. W.; Knudson, M. D.; Davis, J. -P.
- International Journal of Impact Engineering, Vol. 38, Issue 6
An efficient method for unfolding kinetic pressure driven VISAR data
journal, January 2015
- Hess, M.; Peterson, K.; Harvey-Thompson, A.
- High Power Laser Science and Engineering, Vol. 3
Equation of State Measurements in Liquid Deuterium to 70 GPa
journal, November 2001
- Knudson, M. D.; Hanson, D. L.; Bailey, J. E.
- Physical Review Letters, Vol. 87, Issue 22
Electrothermal Instability Mitigation by Using Thick Dielectric Coatings on Magnetically Imploded Conductors
journal, April 2014
- Peterson, Kyle J.; Awe, Thomas J.; Yu, Edmund P.
- Physical Review Letters, Vol. 112, Issue 13
Magnetically driven isentropic compression to multimegabar pressures using shaped current pulses on the Z accelerator
journal, May 2005
- Davis, Jean-Paul; Deeney, Christopher; Knudson, Marcus D.
- Physics of Plasmas, Vol. 12, Issue 5, Article No. 056310
Detection of an anomalous pressure on a magneto-inertial-fusion load current diagnostic
journal, January 2017
- Hess, M. H.; Hutsel, B. T.; Jennings, C. A.
- Physics of Plasmas, Vol. 24, Issue 1
Pulsed-power-driven high energy density physics and inertial confinement fusion research
journal, May 2005
- Matzen, M. Keith; Sweeney, M. A.; Adams, R. G.
- Physics of Plasmas, Vol. 12, Issue 5
Near-absolute Hugoniot measurements in aluminum to 500 GPa using a magnetically accelerated flyer plate technique
journal, October 2003
- Knudson, M. D.; Lemke, R. W.; Hayes, D. B.
- Journal of Applied Physics, Vol. 94, Issue 7
-A load-current -dot monitor: Simulations, design, and performance
journal, April 2010
- Rose, D. V.; Welch, D. R.; Miller, C. L.
- Physical Review Special Topics - Accelerators and Beams, Vol. 13, Issue 4
Transmission-line-circuit model of an 85-TW, 25-MA pulsed-power accelerator
journal, March 2018
- Hutsel, B. T.; Corcoran, P. A.; Cuneo, M. E.
- Physical Review Accelerators and Beams, Vol. 21, Issue 3