Publications

Results 51–75 of 369

Search results

Jump to search filters

Investigating the energy balance in MagLIF preheat experiments

Harvey-Thompson, Adam J.; Geissel, Matthias; Crabtree, Jerry A.; Ampleford, David; Awe, Thomas J.; Beckwith, Kristian; Fein, Jeffrey R.; Gomez, Matthew R.; Hanson, Joseph C.; Jennings, Christopher A.; Kimmel, Mark; Maurer, Andrew J.; Shores, Jonathon; Smith, Ian C.; Speas, Robert J.; Speas, Christopher S.; York, A.; Porter, John L.; Paguio, Reny; Smith, Gary

Abstract not provided.

More Details
TYPE Conference Presentation YEAR 2021
DOIOSTI

Lasergate: A windowless gas target for enhanced laser preheat in magnetized liner inertial fusion

Physics of Plasmas

Galloway, Benjamin R.; Slutz, Stephen A.; Kimmel, Mark; Rambo, Patrick K.; Schwarz, Jens; Geissel, Matthias; Harvey-Thompson, Adam J.; Weis, Matthew R.; Jennings, Christopher A.; Field, Ella; Kletecka, Damon; Looker, Quinn M.; Colombo, Anthony; Edens, Aaron; Smith, Ian C.; Shores, Jonathon; Speas, Christopher S.; Speas, Robert J.; Spann, A.P.; Sin, J.; Gautier, S.; Sauget, V.; Treadwell, P.A.; Rochau, Gregory A.; Porter, John L.

At the Z Facility at Sandia National Laboratories, the magnetized liner inertial fusion (MagLIF) program aims to study the inertial confinement fusion in deuterium-filled gas cells by implementing a three-step process on the fuel: premagnetization, laser preheat, and Z-pinch compression. In the laser preheat stage, the Z-Beamlet laser focuses through a thin polyimide window to enter the gas cell and heat the fusion fuel. However, it is known that the presence of the few μm thick window reduces the amount of laser energy that enters the gas and causes window material to mix into the fuel. These effects are detrimental to achieving fusion; therefore, a windowless target is desired. The Lasergate concept is designed to accomplish this by "cutting"the window and allowing the interior gas pressure to push the window material out of the beam path just before the heating laser arrives. In this work, we present the proof-of-principle experiments to evaluate a laser-cutting approach to Lasergate and explore the subsequent window and gas dynamics. Further, an experimental comparison of gas preheat with and without Lasergate gives clear indications of an energy deposition advantage using the Lasergate concept, as well as other observed and hypothesized benefits. While Lasergate was conceived with MagLIF in mind, the method is applicable to any laser or diagnostic application requiring direct line of sight to the interior of gas cell targets.

More Details
TYPE Journal Article YEAR 2021
DOIOSTIScopus

Development of the MARZ platform (Magnetically Ablated Reconnection on Z) to study astrophysically relevant radiative magnetic reconnection in the laboratory

Myers, Clayton; Hare, Jack; Ampleford, David; Aragon, Carlos; Chittenden, Jeremy; Colombo, Anthony; Crilly, Aidan; Datta, Rishabh; Edens, Aaron; Fox, Will; Gomez, Matthew R.; Halliday, Jack; Hansen, Stephanie B.; Harding, Eric; Harmon, Roger; Jones, Michael; Jennings, Christopher A.; Ji, Hantao; Kuranz, Carolyn; Lebedev, Sergey; Looker, Quinn M.; Melean, Raul; Uzdensky, Dmitri; Webb, Timothy J.

Abstract not provided.

More Details
TYPE Conference Poster YEAR 2021
DOIOSTI

Increased preheat energy to MagLIF targets with cryogenic cooling

Harvey-Thompson, Adam J.; Geissel, Matthias; Crabtree, Jerry A.; Weis, Matthew R.; Gomez, Matthew R.; Fein, Jeffrey R.; Ampleford, David; Awe, Thomas J.; Chandler, Gordon A.; Galloway, Benjamin R.; Hansen, Stephanie B.; Hanson, Jeffrey; Harding, Eric; Jennings, Christopher A.; Kimmel, Mark; Knapp, P.F.; Lamppa, Derek C.; Bays, Nathan R.; Mangan, Michael A.; Maurer, Andrew J.; Perea, Lawrence; Peterson, Kara J.; Porter, John L.; Rambo, Patrick K.; Robertson, G.K.; Rochau, Gregory A.; Ruiz, Daniel E.; Shores, Jonathon; Slutz, Stephen A.; Smith, Ian C.; Speas, Christopher S.; Yager-Elorriaga, David A.; York, A.; Paguio, R.R.; Smith, G.E.

Abstract not provided.

More Details
TYPE Conference Presentation YEAR 2021
DOIOSTI

Developing a platform to enable parameter scaling studies in Magnetized Liner Inertial Fusion experiments

Gomez, Matthew R.; Slutz, Stephen A.; Jennings, Christopher A.; Weis, Matthew R.; Lamppa, Derek C.; Harvey-Thompson, Adam J.; Geissel, Matthias; Awe, Thomas J.; Chandler, Gordon A.; Crabtree, Jerry A.; Fein, Jeffrey R.; Hansen, Stephanie B.; Harding, Eric; Bays, Nathan R.; Mangan, Michael A.; Ruiz, Daniel E.; Smith, Ian C.; Yager-Elorriaga, David A.; Ampleford, David; Beckwith, Kristian

Abstract not provided.

More Details
TYPE Conference Presentation YEAR 2021
DOIOSTI

An overview of magneto-inertial fusion on the Z Machine at Sandia National Laboratories

Yager-Elorriaga, David A.; Gomez, Matthew R.; Ruiz, Daniel E.; Slutz, Stephen A.; Harvey-Thompson, Adam J.; Jennings, Christopher A.; Weis, Matthew R.; Awe, Thomas J.; Chandler, Gordon A.; Myers, Clayton; Fein, Jeffrey R.; Geissel, Matthias; Glinsky, Michael E.; Hansen, Stephanie B.; Harding, Eric; Lamppa, Derek C.; Bays, Nathan R.; Robertson, G.K.; Savage, Mark E.; Ampleford, David; Beckwith, Kristian; Peterson, K.J.; Porter, John L.; Rochau, Gregory A.

Abstract not provided.

More Details
TYPE Conference Paper YEAR 2021
OSTI

An overview of magneto-inertial fusion on the Z Machine at Sandia National Laboratories

Yager-Elorriaga, David A.; Gomez, Matthew R.; Ruiz, Daniel E.; Slutz, Stephen A.; Harvey-Thompson, Adam J.; Jennings, Christopher A.; Knapp, P.F.; Schmit, Paul; Weis, Matthew R.; Awe, Thomas J.; Chandler, Gordon A.; Mangan, Michael A.; Myers, Clayton; Fein, Jeffrey R.; Geissel, Matthias; Glinsky, Michael E.; Hansen, Stephanie B.; Harding, Eric; Lamppa, Derek C.; Webster, Evelyn; Rambo, Patrick K.; Robertson, G.K.; Savage, Mark E.; Smith, Ian C.; Ampleford, David; Beckwith, Kristian; Peterson, Kara J.; Porter, John L.; Rochau, Gregory A.; Sinars, Daniel

Abstract not provided.

More Details
TYPE Conference Poster YEAR 2021
DOIOSTI

The inductively driven transmission line: A passively coupled device for diagnostic applications on the Z pulsed power facility

Review of Scientific Instruments

Myers, Clayton; Lamppa, Derek C.; Jennings, Christopher A.; Gomez, Matthew R.; Knapp, P.F.; Kossow, Michael R.; Lucero, Larry; Yager-Elorriaga, David A.

The inductively driven transmission line (IDTL) is a miniature current-carrying device that passively couples to fringe magnetic fields in the final power feed on the Z Pulsed Power Facility. The IDTL redirects a small amount of Z's magnetic energy along a secondary path to ground, thereby enabling pulsed power diagnostics to be driven in parallel with the primary load for the first time. IDTL experiments and modeling presented here indicate that IDTLs operate non-perturbatively on Z and that they can draw in excess of 150 kA of secondary current, which is enough to drive an X-pinch backlighter. Additional experiments show that IDTLs are also capable of making cleaner, higher-fidelity measurements of the current flowing in the final feed.

More Details
TYPE Journal Article YEAR 2021
DOIOSTIScopus

IMPROVED PERFORMANCE OF MAGNETIZED LINER INERTIAL FUSION EXPERIMENTS WITH HIGH-ENERGY LOW-MIX LASER PREHEAT CONFIGURATIONS

Harvey-Thompson, Adam J.; Geissel, Matthias; Weis, Matthew R.; Jennings, Christopher A.; Gomez, Matthew R.; Fein, Jeffrey R.; Ampleford, David; Bliss, David E.; Chandler, Gordon A.; Glinsky, Michael E.; Hahn, Kelly; Hansen, Stephanie B.; Hanson, Joseph C.; Harding, Eric; Knapp, P.F.; Mangan, Michael A.; Perea, Lawrence; Peterson, K.J.; Porter, John L.; Rambo, Patrick K.; Robertson, G.K.; Rochau, Gregory A.; Ruiz, Carlos; Schwarz, Jens; Shores, Jonathon; Sinars, Daniel; Slutz, Stephen A.; Smith, Ian C.; Speas, Christopher S.; Whittemore, Kelly A.; Paguio, Reny; Smith, Gary L.; York, A.

Abstract not provided.

More Details
TYPE Conference Presentation YEAR 2020
DOIOSTI
Results 51–75 of 369
Results 51–75 of 369
Top