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Stagnation Performance Scaling of Magnetized Liner Inertial Fusion

Gomez, Matthew R.; Yager-Elorriaga, David A.; Myers, Clayton E.; Slutz, Stephen A.; Weis, Matthew R.; Jennings, Christopher A.; Lamppa, Derek C.; Harvey-Thompson, Adam J.; Geissel, Matthias G.; Knapp, Patrick K.; Harding, Eric H.; Hansen, Stephanie B.; Mangan, Michael M.; Ruiz, Carlos L.; Chandler, Gordon A.; Hahn, Kelly D.; Webb, Timothy J.; Moore, Thomas M.; Laity, George R.; Ampleford, David A.; Peterson, Kyle J.; Rochau, G.A.; Sinars, Daniel S.

Abstract not provided.

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TYPE Conference Poster YEAR 2019
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Designing And Testing New MagLIF Preheat Protocols

Harvey-Thompson, Adam J.; Geissel, Matthias G.; Weis, Matthew R.; Jennings, Christopher A.; Glinsky, Michael E.; Peterson, Kyle J.; Awe, Thomas J.; Bliss, David E.; Gomez, Matthew R.; Harding, Eric H.; Hansen, Stephanie B.; Kimmel, Mark W.; Knapp, Patrick K.; Lewis, Sean M.; Porter, John L.; Rambo, Patrick K.; Rochau, G.A.; Schollmeier, Marius; Schwarz, Jens S.; Shores, Jonathon S.; Slutz, Stephen A.; Sinars, Daniel S.; Smith, Ian C.; Speas, Christopher S.

Abstract not provided.

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TYPE Conference Poster YEAR 2019
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MagLIF laser preheat update

Harvey-Thompson, Adam J.; Geissel, Matthias G.; Weis, Matthew R.; Jennings, Christopher A.; Glinsky, Michael E.; Peterson, Kyle J.; Awe, Thomas J.; Bliss, David E.; Gomez, Matthew R.; Harding, Eric H.; Hansen, Stephanie B.; Kimmel, Mark W.; Knapp, Patrick K.; Lewis, Sean M.; Schollmeier, Marius; Schwarz, Jens S.; Sefkow, Adam B.; Shores, Jonathon S.; Slutz, Stephen A.; Sinars, Daniel S.; Smith, Ian C.; Speas, Christopher S.; Wei, M.S.; Vesey, Roger A.; Porter, John L.

Abstract not provided.

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TYPE Conference Poster YEAR 2019
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Designing and testing new preheat protocols for MagLIF

Harvey-Thompson, Adam J.; Geissel, Matthias G.; Weis, Matthew R.; Peterson, Kyle J.; Glinsky, Michael E.; Awe, Thomas J.; Bliss, David E.; Gomez, Matthew R.; Harding, Eric H.; Hansen, Stephanie B.; Kimmel, Mark W.; Knapp, Patrick K.; Lewis, Sean M.; Porter, John L.; Rochau, G.A.; Schollmeier, Marius; Schwarz, Jens S.; Shores, Jonathon S.; Slutz, Stephen A.; Sinars, Daniel S.; Smith, Ian C.; Speas, Christopher S.

Abstract not provided.

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TYPE Conference Poster YEAR 2019
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One dimensional imager of neutrons on the Z machine

Review of Scientific Instruments

Ampleford, David A.; Ruiz, Carlos L.; Fittinghoff, David N.; Vaughan, Jeremy V.; Hahn, Kelly D.; Lahmann, Brandon; Gatu-Johnson, Maria; Frenje, Johan; Petrasso, Richard; Ball, Christopher R.; Maurer, A.; Knapp, Patrick K.; Harvey-Thompson, Adam J.; Fisher, John A.; Alberto, Perry; Torres, Jose A.; Cooper, Gary; Jones, Brent M.; Rochau, G.A.; May, Mark J.

We recently developed a one-dimensional imager of neutrons on the Z facility. The instrument is designed for Magnetized Liner Inertial Fusion (MagLIF) experiments, which produce D-D neutrons yields of ∼3 × 1012. X-ray imaging indicates that the MagLIF stagnation region is a 10-mm long, ∼100-μm diameter column. The small radial extents and present yields precluded useful radial resolution, so a one-dimensional imager was developed. The imaging component is a 100-mm thick tungsten slit; a rolled-edge slit limits variations in the acceptance angle along the source. CR39 was chosen as a detector due to its negligible sensitivity to the bright x-ray environment in Z. A layer of high density poly-ethylene is used to enhance the sensitivity of CR39. We present data from fielding the instrument on Z, demonstrating reliable imaging and track densities consistent with diagnosed yields. For yields ∼3 × 1012, we obtain resolutions of ∼500 μm.

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TYPE Journal Article YEAR 2018
ScopusOSTIDOI

Assessing stagnation magnetized liner inertial fusion stagnation conditions and identifying trends

Gomez, Matthew R.; Slutz, Stephen A.; Knapp, Patrick K.; Hahn, Kelly D.; Harding, Eric H.; Ampleford, David A.; Awe, Thomas J.; Geissel, Matthias G.; Hansen, Stephanie B.; Harvey-Thompson, Adam J.; Jennings, Christopher A.; Myers, Clayton E.; Peterson, Kyle J.; Rochau, G.A.; Sinars, Daniel S.; Weis, Matthew R.; Yager-Elorriaga, David A.

Abstract not provided.

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TYPE Conference Poster YEAR 2018
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Assessing Magnetized Liner Inertial Fusion stagnation conditions and identifying trends

Gomez, Matthew R.; Slutz, Stephen A.; Knapp, Patrick K.; Hahn, Kelly D.; Harding, Eric H.; Ampleford, David A.; Awe, Thomas J.; Geissel, Matthias G.; Hansen, Stephanie B.; Harvey-Thompson, Adam J.; Jennings, Christopher A.; Myers, Clayton E.; Peterson, Kyle J.; Rochau, G.A.; Sinars, Daniel S.; Weis, Matthew R.; Yager-Elorriaga, David A.

Abstract not provided.

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TYPE Conference Poster YEAR 2018
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Minimizing scatter-losses during pre-heat for magneto-inertial fusion targets

Physics of Plasmas

Geissel, Matthias G.; Harvey-Thompson, Adam J.; Awe, Thomas J.; Bliss, David E.; Glinsky, Michael E.; Gomez, Matthew R.; Harding, Eric H.; Hansen, Stephanie B.; Jennings, Christopher A.; Kimmel, Mark W.; Knapp, Patrick K.; Lewis, Sean M.; Peterson, Kyle J.; Schollmeier, Marius; Schwarz, Jens S.; Shores, Jonathon S.; Slutz, Stephen A.; Sinars, Daniel S.; Smith, Ian C.; Speas, C.S.; Vesey, Roger A.; Weis, Matthew R.; Porter, John L.

The size, temporal and spatial shape, and energy content of a laser pulse for the pre-heat phase of magneto-inertial fusion affect the ability to penetrate the window of the laser-entrance-hole and to heat the fuel behind it. High laser intensities and dense targets are subject to laser-plasma-instabilities (LPI), which can lead to an effective loss of pre-heat energy or to pronounced heating of areas that should stay unexposed. While this problem has been the subject of many studies over the last decades, the investigated parameters were typically geared towards traditional laser driven Inertial Confinement Fusion (ICF) with densities either at 10% and above or at 1% and below the laser's critical density, electron temperatures of 3-5 keV, and laser powers near (or in excess of) 1 × 1015 W/cm2. In contrast, Magnetized Liner Inertial Fusion (MagLIF) [Slutz et al., Phys. Plasmas 17, 056303 (2010) and Slutz and Vesey, Phys. Rev. Lett. 108, 025003 (2012)] currently operates at 5% of the laser's critical density using much thicker windows (1.5-3.5 μm) than the sub-micron thick windows of traditional ICF hohlraum targets. This article describes the Pecos target area at Sandia National Laboratories using the Z-Beamlet Laser Facility [Rambo et al., Appl. Opt. 44(12), 2421 (2005)] as a platform to study laser induced pre-heat for magneto-inertial fusion targets, and the related progress for Sandia's MagLIF program. Forward and backward scattered light were measured and minimized at larger spatial scales with lower densities, temperatures, and powers compared to LPI studies available in literature.

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TYPE Journal Article YEAR 2018
ScopusOSTIDOI

Plasma and radiation detection via fiber interferometry

Journal of Applied Physics

Dolan, Daniel H.; Bell, K.; Fox, B.; Jones, Scott C.; Knapp, Patrick K.; Gomez, Matthew R.; Martin, M.; Porwitzky, Andrew J.; Laity, G.

Photonic Doppler velocimetry tracks motion during high-speed, single-event experiments using telecommunication fiber components. The same technology can be applied in situations where there is no actual motion, but rather a change in the optical path length. Migration of plasma into vacuum alters the refractive index near a fiber probe, while intense radiation modifies the refractive index of the fiber itself. These changes can diagnose extreme environments in a flexible, time-resolved manner.

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TYPE Journal Article YEAR 2018
ScopusOSTIDOI

Stagnation Morphology in Magnetized Liner Inertial Fusion Experiments

Gomez, Matthew R.; Harding, Eric H.; Ampleford, David A.; Jennings, Christopher A.; Awe, Thomas J.; Chandler, Gordon A.; Glinsky, Michael E.; Hahn, Kelly D.; Hansen, Stephanie B.; Jones, Brent M.; Knapp, Patrick K.; Martin, Matthew; Peterson, Kyle J.; Rochau, G.A.; Ruiz, Carlos L.; Schmit, Paul S.; Sinars, Daniel S.; Slutz, Stephen A.; Weis, Matthew R.; Yu, Edmund Y.

Abstract not provided.

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TYPE Conference Poster YEAR 2017
OSTI

MagLIF Pre-Heat Optimization on the PECOS Surrogacy Platform

Geissel, Matthias G.; Harvey-Thompson, Adam J.; Awe, Thomas J.; Ampleford, David A.; Bliss, David E.; Glinsky, Michael E.; Gomez, Matthew R.; Harding, Eric H.; Hansen, Stephanie B.; Jennings, Christopher A.; Kimmel, Mark W.; Knapp, Patrick K.; Lewis, Sean M.; Peterson, Kyle J.; Rambo, Patrick K.; Rochau, G.A.; Schollmeier, Marius; Shores, Jonathon S.; Sinars, Daniel S.; Slutz, Stephen A.; Smith, Ian C.; Speas, Christopher S.; Vesey, Roger A.; Weis, Matthew R.; Porter, John L.

Abstract not provided.

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TYPE Conference Poster YEAR 2017
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Pre-Heat Optimization for Magnetized Liner Inertial Fusion at Sandia

Geissel, Matthias G.; Harvey-Thompson, Adam J.; Awe, Thomas J.; Bliss, David E.; Glinsky, Michael E.; Gomez, Matthew R.; Harding, Eric H.; Hansen, Stephanie B.; Jennings, Christopher A.; Kimmel, Mark W.; Knapp, Patrick K.; Lewis, Sean M.; Peterson, Kyle J.; Schollmeier, Marius; Shores, Jonathon S.; Sinars, Daniel S.; Slutz, Stephen A.; Smith, Ian C.; Speas, Christopher S.; Vesey, Roger A.; Weis, Matthew R.; Porter, John L.

Abstract not provided.

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TYPE Conference Poster YEAR 2017
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Utilization of Neutron Bang-time CVD diamond detectors at the Z Accelerator

Chandler, Gordon A.; Hahn, Kelly D.; Ruiz, Carlos L.; Jones, Brent M.; Alberto, Perry J.; Torres, Jose A.; Gomez, Matthew R.; Harding, Eric H.; Harvey-Thompson, Adam J.; Hess, Mark H.; Knapp, Patrick K.; Cooper, Gary C.; Styron, Jedediah S.; Moy, Ken M.; Mckenna, Ian M.; Glebov, Vladimir Y.; Fittinghoff, David N.; May, Mark J.; Snyder, Lucas S.; Bowers, Dan B.

Abstract not provided.

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TYPE Conference Poster YEAR 2017
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Magnetically-Driven Convergent Instability Growth platform on Z

Knapp, Patrick K.; Mattsson, Thomas M.; Martin, Matthew; Benage, John F.

Hydrodynamic instability growth is a fundamentally limiting process in many applications. In High Energy Density Physics (HEDP) systems such as inertial confinement fusion implosions and stellar explosions, hydro instabilities can dominate the evolution of the object and largely determine the final state achievable. Of particular interest is the process by which instabilities cause perturbations at a density or material interface to grow nonlinearly, introducing vorticity and eventually causing the two species to mix across the interface. Although quantifying instabilities has been the subject of many investigations in planar geometry, few have been done in converging geometry. During FY17, the team executed six convergent geometry instability experiments. Based on earlier results, the platform was redesigned and improved with respect to load centering at installation making the installation reproducible and development of a new 7.2 keV, Co He-a backlighter system to better penetrate the liner. Together, the improvements yielded significantly improved experimental results. The results in FY17 demonstrate the viability of using experiments on Z to quantify instability growth in cylindrically convergent geometry. Going forward, we will continue the partnership with staff and management at LANL to analyze the past experiments, compare to hydrodynamics growth models, and design future experiments.

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TYPE SAND Report YEAR 2017
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A Path to Increased Performance in Magnetized Liner Inertial Fusion

Gomez, Matthew R.; Slutz, Stephen A.; Jennings, Christopher A.; Harvey-Thompson, Adam J.; Weis, Matthew R.; Lamppa, Derek C.; Hutsel, Brian T.; Ampleford, David A.; Awe, Thomas J.; Bliss, David E.; Chandler, Gordon A.; Geissel, Matthias G.; Hahn, Kelly D.; Hansen, Stephanie B.; Harding, Eric H.; Hess, Mark H.; Knapp, Patrick K.; Laity, George R.; Martin, Matthew; Nagayama, Taisuke N.; Rovang, Dean C.; Ruiz, Carlos L.; Savage, Mark E.; Schmit, Paul S.; Schwarz, Jens S.; Smith, Ian C.; Vesey, Roger A.; Yu, Edmund Y.; Cuneo, M.E.; Jones, Brent M.; Peterson, Kyle J.; Porter, John L.; Rochau, G.A.; Sinars, Daniel S.; Stygar, William A.

Abstract not provided.

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TYPE Conference Poster YEAR 2017
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Pre-Heat Optimization for Magnetized Liner Inertial Fusion at Sandia

Geissel, Matthias G.; Harvey-Thompson, Adam J.; Awe, Thomas J.; Bliss, David E.; Glinsky, Michael E.; Gomez, Matthew R.; Harding, Eric H.; Hansen, Stephanie B.; Jennings, Christopher A.; Kimmel, Mark W.; Knapp, Patrick K.; Peterson, Kyle J.; Schollmeier, Marius; Schwarz, Jens S.; Shores, Jonathon S.; Slutz, Stephen A.; Sinars, Daniel S.; Smith, Ian C.; Speas, Christopher S.; Vesey, Roger A.; Weis, Matthew R.; Porter, John L.

Abstract not provided.

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TYPE Conference Poster YEAR 2017
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Progress in Preconditioning MagLIF fuel and its Impact on Performance

Peterson, Kyle J.; Harvey-Thompson, Adam J.; Awe, Thomas J.; Bliss, David E.; Geissel, Matthias G.; Glinsky, Michael E.; Gomez, Matthew R.; Harding, Eric H.; Hansen, Stephanie B.; Jennings, Christopher A.; Kimmel, Mark W.; Knapp, Patrick K.; Lewis, Sean M.; Schollmeier, Marius; Schwarz, Jens S.; Sefkow, Adam B.; Shores, Jonathon S.; Slutz, Stephen A.; Sinars, Daniel S.; Smith, Ian C.; Speas, Christopher S.; Vesey, Roger A.; Weis, Matthew R.; Porter, John L.

Abstract not provided.

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TYPE Presentation YEAR 2017
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Results 51–100 of 171
Results 51–100 of 171