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Pushing Laser Pre-Heat in MagLIF

Geissel, Matthias G.; Geissel, Matthias G.; Harvey-Thompson, Adam J.; Fein, Jeffrey R.; Woodbury, Daniel W.; Davis, Daniel R.; Bliss, David E.; Scoglietti, Daniel S.; Gomez, Matthew R.; Ampleford, David A.; Awe, Thomas J.; Colombo, Anthony P.; Weis, Matthew R.; Jennings, Christopher A.; Glinsky, Michael E.; Slutz, Stephen A.; Ruiz, Daniel E.; Peterson, Kyle J.; Smith, Ian C.; Shores, Jonathon S.; Kimmel, Mark W.; Rambo, Patrick K.; Schwarz, Jens S.; Galloway, B.R.; Speas, Christopher S.; Porter, John L.

Abstract not provided.

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TYPE Conference Poster YEAR 2018
OSTI

A Window-less Target for Magnetized Liner Inertial Fusion Characterized using High-Speed Solid-State Framing Cameras

Colombo, Anthony P.; Schwarz, Jens S.; Rambo, Patrick K.; Galloway, B.R.; Kimmel, Mark W.; Slutz, Stephen A.; Weis, Matthew R.; Claus, Liam D.; England, Troy D.; Fang, Lu F.; Looker, Quinn M.; Mitchell, Brandon M.; Montoya, Andrew M.; Robertson, Gideon R.; Rochau, G.A.; Sanchez, Marcos O.; Stahoviak, John W.; Hund, Jared H.; Sin, Justin S.; Porter, John L.

Abstract not provided.

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TYPE Conference Poster YEAR 2018
OSTI

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

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
OSTI

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
OSTI

A 7.2 keV spherical x-ray crystal backlighter for two-frame, two-color backlighting at Sandia's Z Pulsed Power Facility

Review of Scientific Instruments

Schollmeier, Marius; Knapp, P.F.; Ampleford, David A.; Harding, Eric H.; Jennings, C.A.; Lamppa, Derek C.; Loisel, G.P.; Martin, M.R.; Robertson, Grafton K.; Shores, J.E.; Smith, Ian C.; Speas, C.S.; Weis, M.R.; Porter, John L.; McBride, Ryan D.

Many experiments on Sandia National Laboratories' Z Pulsed Power Facility - a 30 MA, 100 ns rise-time, pulsed-power driver - use a monochromatic quartz crystal backlighter system at 1.865 keV (Si Heα) or 6.151 keV (Mn Heα) x-ray energy to radiograph an imploding liner (cylindrical tube) or wire array z-pinch. The x-ray source is generated by the Z-Beamlet laser, which provides two 527-nm, 1 kJ, 1-ns laser pulses. Radiographs of imploding, thick-walled beryllium liners at convergence ratios CR above 15 [CR=ri(0)/ri(t)] using the 6.151-keV backlighter system were too opaque to identify the inner radius ri of the liner with high confidence, demonstrating the need for a higher-energy x-ray radiography system. Here, we present a 7.242 keV backlighter system using a Ge(335) spherical crystal with the Co Heα resonance line. This system operates at a similar Bragg angle as the existing 1.865 keV and 6.151 keV backlighters, enhancing our capabilities for two-color, two-frame radiography without modifying the system integration at Z. The first data taken at Z include 6.2-keV and 7.2-keV two-color radiographs as well as radiographs of low-convergence (CR about 4-5), high-areal-density liner implosions.

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TYPE Journal Article YEAR 2017
ScopusOSTIDOI

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
OSTI

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
OSTI

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
OSTI

Design and characterization of an improved, 2 ns, multi-frame imager for the Ultra-Fast X-ray Imager (UXI) program at Sandia National Laboratories

Proceedings of SPIE - The International Society for Optical Engineering

Claus, L.; England, T.; Fang, Lu F.; Robertson, Gideon R.; Sanchez, Marcos O.; Trotter, D.; Carpenter, A.; Dayton, M.; Patel, P.; Porter, John L.

The Icarus camera is an improvement on past imagers (Furi and Hippogriff) designed for the Ultra-Fast X-ray Imager (UXI) program to deliver ultra-fast, time-gated, multi-frame image sets for High Energy Density Physics (HEDP) experiments. Icarus is a 1024 × 512 pixel array with 25 μm spatial resolution containing 4 frames of storage per pixel. It has improved timing generation and distribution components and has achieved 2 ns time gating. Design improvements and initial characterization and performance results will be discussed. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA0003525.

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TYPE Conference Poster YEAR 2017
ScopusOSTI

Developing a Pre-Heat Platform for MagLIF with Z-Beamlet

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

Abstract not provided.

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TYPE Conference Poster YEAR 2016
OSTI

Daily operation of Z: an 80 TW 36-module pulsed power driver

Savage, Mark E.; Cuneo, M.E.; Davis, Jean-Paul D.; Hutsel, Brian T.; Jones, Michael J.; Jones, Peter A.; Kamm, Ryan J.; Lopez, Michael R.; Matzen, M.K.; McDaniel, D.H.M.; McKee, George R.; Maenchen, J.E.M.; Owen, A.C.O.; Porter, John L.; Prestwich, K.R.P.; Schwarz, Jens S.; Sinars, Daniel S.; Stoltzfus, Brian S.; Struve, Kenneth W.; Stygar, William A.; Wakeland, P.; White, William M.

Abstract not provided.

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TYPE Conference Poster YEAR 2016
OSTI
Results 51–75 of 127
Results 51–75 of 127