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Adaptive Beam Smoothing with Plasma-Pinholes for Laser-Entrance-Hole Transmission Studies

Geissel, Matthias G.; Awe, Thomas J.; Campbell, Edward M.; Gomez, Matthew R.; Harding, Eric H.; Harvey-Thompson, Adam J.; Jennings, Christopher A.; Kimmel, Mark W.; Lewis, Sean M.; McBride, Ryan D.; Peterson, Kyle J.; Schollmeier, Marius; Sefkow, Adam B.; Shores, Jonathon S.; Sinars, Daniel S.; Slutz, Stephen A.; Smith, Ian C.; Speas, Christopher S.; Stahoviak, John W.; Porter, John L.

Abstract not provided.

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TYPE Conference Poster YEAR 2014
OSTI

Experimental demonstration of fusion-relevant conditions in magnetized liner inertial fusion

Physical Review Letters

Gomez, Matthew R.; Jennings, Christopher A.; Awe, Thomas J.; Geissel, Matthias G.; Rovang, Dean C.; Chandler, Gordon A.; Cuneo, M.E.; Harvey-Thompson, Adam J.; Herrmann, Mark H.; Hess, Mark H.; Slutz, Stephen A.; Johns, Owen J.; Lamppa, Derek C.; Martin, Matthew; McBride, Ryan D.; Peterson, Kyle J.; Robertson, Grafton K.; Rochau, G.A.; Ruiz, Carlos L.; Savage, Mark E.; Sefkow, Adam B.; Smith, Ian C.; Stygar, William A.; Vesey, Roger A.; Sinars, Daniel S.; Hahn, Kelly D.; Hansen, Stephanie B.; Harding, Eric H.; Knapp, Patrick K.; Schmit, Paul S.

This Letter presents results from the first fully integrated experiments testing the magnetized liner inertial fusion concept [S.A. Slutz et al., Phys. Plasmas 17, 056303 (2010)], in which a cylinder of deuterium gas with a preimposed axial magnetic field of 10 T is heated by Z beamlet, a 2.5 kJ, 1 TW laser, and magnetically imploded by a 19 MA current with 100 ns rise time on the Z facility. Despite a predicted peak implosion velocity of only 70 km/s, the fuel reaches a stagnation temperature of approximately 3 keV, with Te ≈ Ti, and produces up to 2e12 thermonuclear DD neutrons. In this study, X-ray emission indicates a hot fuel region with full width at half maximum ranging from 60 to 120 μm over a 6 mm height and lasting approximately 2 ns. The number of secondary deuterium-tritium neutrons observed was greater than 1010, indicating significant fuel magnetization given that the estimated radial areal density of the plasma is only 2 mg/cm2.

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TYPE Journal Article YEAR 2014
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Demonstration of fusion relevant conditions in Magnetized Liner Inertial Fusion experiments on the Z facility

Gomez, Matthew R.; Slutz, Stephen A.; Sefkow, Adam B.; Sinars, Daniel S.; Hahn, Kelly D.; Hansen, Stephanie B.; Harding, Eric H.; Knapp, Patrick K.; Schmit, Paul S.; Jennings, Christopher A.; Awe, Thomas J.; Geissel, Matthias G.; Rovang, Dean C.; Chandler, Gordon A.; Cuneo, M.E.; Harvey-Thompson, Adam J.; Herrmann, Mark H.; Lamppa, Derek C.; Martin, Matthew; McBride, Ryan D.; Peterson, Kyle J.; Porter, John L.; Rochau, G.A.; Ruiz, Carlos L.; Savage, Mark E.; Smith, Ian C.; Vesey, Roger A.

Abstract not provided.

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TYPE Presentation YEAR 2014
OSTI

Demonstration of fusion relevant conditions in Magnetized Liner Inertial Fusion Experiments on the Z Facility

Gomez, Matthew R.; Slutz, Stephen A.; Sefkow, Adam B.; Sinars, Daniel S.; Hahn, Kelly D.; Hansen, Stephanie B.; Harding, Eric H.; Knapp, Patrick K.; Schmit, Paul S.; Jennings, Christopher A.; Awe, Thomas J.; Geissel, Matthias G.; Rovang, Dean C.; Chandler, Gordon A.; Cuneo, M.E.; Harvey-Thompson, Adam J.; Herrmann, Mark H.; Lamppa, Derek C.; Martin, Matthew; McBride, Ryan D.; Peterson, Kyle J.; Porter, John L.; Rochau, G.A.; Ruiz, Carlos L.; Savage, Mark E.; Smith, Ian C.; Vesey, Roger A.

Abstract not provided.

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TYPE Presentation YEAR 2014
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Modified 3D-helix-like instability structure for imploding Z-pinch liners that are premagnetized with a uniform axial field

Awe, Thomas J.; Jennings, Christopher A.; McBride, Ryan D.; Cuneo, M.E.; Lamppa, Derek C.; Martin, Matthew; Rovang, Dean C.; Sinars, Daniel S.; Slutz, Stephen A.; Owen, Albert C.; Gomez, Matthew R.; Hansen, Stephanie B.; Harding, Eric H.; Herrmann, Mark H.; Jones, Michael J.; Knapp, Patrick K.; Mckenney, John M.; Peterson, Kyle J.; Robertson, Grafton K.; Rochau, G.A.; Savage, Mark E.; Schmit, Paul S.; Sefkow, Adam B.; Stygar, William A.; Vesey, Roger A.; Yu, Edmund Y.; Tomlinson, Kurt T.; Schroen, Diana G.

Abstract not provided.

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TYPE Presentation YEAR 2014
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Results Progress and Plans for Magnetized Liner Inertial Fusion (MagLIF) on Z

Peterson, Kyle J.; Slutz, Stephen A.; Sinars, Daniel S.; Sefkow, Adam B.; Gomez, Matthew R.; Awe, Thomas J.; Harvey-Thompson, Adam J.; Geissel, Matthias G.; Schmit, Paul S.; Smith, Ian C.; McBride, Ryan D.; Rovang, Dean C.; Knapp, Patrick K.; Hansen, Stephanie B.; Jennings, Christopher A.; Harding, Eric H.; Porter, John L.; Vesey, Roger A.; Blue, Brent B.; Schroen, Diana G.; Tomlinson, Kurt T.

Abstract not provided.

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TYPE Presentation YEAR 2014
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Modified helix-like instability structure on imploding z-pinch liners that are pre-imposed with a uniform axial magnetic field

Physics of Plasmas

Awe, Thomas J.; Owen, Albert C.; Gomez, Matthew R.; Hansen, Stephanie B.; Herrmann, Mark H.; Jones, Michael J.; Mckenney, John M.; Robertson, Grafton K.; Rochau, G.A.; Savage, Mark E.; Stygar, William A.; Jennings, Christopher A.; McBride, Ryan D.; Lamppa, Derek C.; Martin, Matthew; Rovang, Dean C.; Sinars, Daniel S.; Slutz, Stephen A.; Cuneo, M.E.

Abstract not provided.

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TYPE Journal Article YEAR 2014
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Observations of Modified Three-Dimensional Instability Structure for Imploding z -Pinch Liners that are Premagnetized with an Axial Field

Physical Review Letters

McBride, Ryan D.; Gomez, Matthew R.; Hansen, Stephanie B.; Herrmann, Mark H.; Mckenney, John M.; Robertson, Grafton K.; Rochau, G.A.; Savage, Mark E.; Stygar, William A.; Jennings, Christopher A.; Lamppa, Derek C.; Martin, Matthew; Rovang, Dean C.; Slutz, Stephen A.; Cuneo, M.E.; Owen, Albert C.; Sinars, Daniel S.

Novel experimental data are reported that reveal helical instability formation on imploding z -pinch liners that are premagnetized with an axial field. Such instabilities differ dramatically from the mostly azimuthally symmetric instabilities that form on unmagnetized liners. The helical structure persists at nearly constant pitch as the liner implodes. This is surprising since, at the liner surface, the azimuthal drive field presumably dwarfs the axial field for all but the earliest stages of the experiment. These fundamentally 3D results provide a unique and challenging test for 3D-magnetohydrodynamics simulations.

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TYPE Journal Article YEAR 2013
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Results 101–125 of 215
Results 101–125 of 215