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Sandia journal manuscript; Not yet accepted for publication
Slutz, Stephen A. ; Gomez, Matthew R. ; 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. ; Herrmann, M.C.H.; Hess, Mark H. ; Johns, Owen J. ; Lamppa, Derek C. ; Martin, Matthew ; McBride, Ryan D. ; Geissel, Matthias G. ; Rovang, Dean C. ; Chandler, Gordon A. ; Cooper, Gary W. ; Cuneo, M.E. ; Harvey-Thompson, Adam J. ; Peterson, Kyle J. ; Porter, John L. ; Robertson, Grafton K. ; Rochau, G.A. ; Ruiz, Carlos L. ; Savage, Mark E. ; Smith, Ian C. ; Stygar, William A. ; Vesey, Roger A.
The standard approaches to inertial confinement fusion (ICF) rely on implosion velocities greater than 300 km/s and spherical convergence to achieve the high fuel temperatures (T > 4 keV) and areal densities (ρr > 0.3 g/cm2) required for ignition1. Such high velocities are achieved by heating the outside surface of a spherical capsuleeither directly with a large number of laser beams (Direct Drive) or with x-rays generated within a hohlraum (Indirect Drive). A much more energetically efficient approach is to use the magnetic pressure generated by a pulsed power machine to directly drive an implosion. In this approach 5-10% of the stored energy can be converted to the implosion of a metal tube generally referred to as a “liner”. However, the implosion velocity is not very high 70-100 km/s and the convergence is cylindrical (rather than spherical) making it more difficult to achieve the high temperatures and areal densities needed for ignition.
Physics of Plasmas
Jones, Brent M. ; Apruzese, J.P.; Harvey-Thompson, Adam J. ; Ampleford, David A. ; Jennings, C.A.; Hansen, Stephanie B. ; Moore, Nathan W. ; Lamppa, Derek C. ; Johnson, Drew J. ; Jones, Brent M. ; Waisman, Eduardo M. ; Coverdale, Christine A. ; Cuneo, M.E. ; Rochau, G.A. ; Giuliani, J.L.; Thornhill, J.W.; Ouart, N.D.; Chong, Y.K.; Velikovich, A.L.; Dasgupta, A.; Krishnan, M.; Coleman, P.L.
Argon gas puffs have produced 330kJ ± 9% of x-ray radiation above 3keV photon energy in fast z-pinch implosions, with remarkably reproducible K-shell spectra and power pulses. This reproducibility in x-ray production is particularly significant in light of the variations in instability evolution observed between experiments. Soft x-ray power measurements and K-shell line ratios from a time-resolved spectrum at peak x-ray power suggest that plasma gradients in these high-mass pinches may limit the K-shell radiating mass, K-shell power, and K-shell yield from high-current gas puffs.
Harding, Eric H. ; Ao, Tommy A. ; Bailey, James E. ; Shulenburger, Luke N. ; Seagle, Christopher T. ; Sinars, Daniel S. ; Rochau, G.A. ; Hansen, Stephanie B. ; Loisel, Guillaume P. ; Desjarlais, Michael P. ; Lemke, Raymond W.
ICOPS/BEAMS 2014 - 41st IEEE International Conference on Plasma Science and the 20th International Conference on High-Power Particle Beams
Gomez, Matthew R. ; Slutz, S.A.; Sefkow, Adam B. ; Awe, T.J.; Chandler, Gordon A. ; Cuneo, M.E. ; Geissel, Matthias G. ; Hahn, K.D.; Hansen, Stephanie B. ; Harding, Eric H. ; Harvey-Thompson, Adam J. ; Herrmann, Mark H. ; Jennings, C.A.; Knapp, P.F.; Lamppa, Derek C. ; Martin, M.R.; McBride, Ryan D. ; Peterson, Kyle J. ; Porter, J.L.; Rochau, G.A. ; Rovang, Dean C. ; Ruiz, Carlos L. ; Schmit, Paul S. ; Sinars, Daniel S. ; Smith, Ian C.
ICOPS/BEAMS 2014 - 41st IEEE International Conference on Plasma Science and the 20th International Conference on High-Power Particle Beams
Ouart, N.D.; Giuliani, J.L.; Dasgupta, A.; Petrov, G.M.; Safronova, A.S.; Kantsyrev, V.L.; Esaulov, A.A.; Shrestha, I.; Weller, M.E.; Shlyaptseva, V.; Schultz, K.; Stafford, A.; Cooper, M.; Ampleford, David A. ; Hansen, Stephanie B. ; Apruzese, J.P.; Clark, R.W.
Hansen, Stephanie B.
Jennings, Christopher A. ; Gomez, Matthew R. ; Hansen, Stephanie B. ; Harding, Eric H. ; McBride, Ryan D. ; Sinars, Daniel S. ; Awe, Thomas J. ; Slutz, Stephen A. ; Sefkow, Adam B. ; Peterson, Kyle J. ; Chittenden, J.P.C.
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 .
Ao, Tommy A. ; Harding, Eric H. ; Bailey, James E. ; Desjarlais, Michael P. ; Hansen, Stephanie B. ; Lemke, Raymond W. ; Sinars, Daniel S. ; Rochau, G.A. ; Smith, Ian C. ; Reneker, Joseph R. ; Romero, Dustin H. ; Benage, John F. ; Golovkin, Igor G.; Gregori, G G.
Loisel, Guillaume P. ; Bailey, James E. ; Rochau, G.A. ; Hansen, Stephanie B. ; Nagayama, Taisuke N. ; Liedahl, D.L.; Mancini, R.M.; Koepke, M.K.
Jones, Brent M. ; Ruiz, Carlos L. ; Chandler, Gordon A. ; Hahn, Kelly D. ; Fehl, David L. ; Nelson, Alan J. ; Torres, Jose A. ; Coverdale, Christine A. ; Lash, Joel S. ; Knapp, Patrick K. ; Gomez, Matthew R. ; Hansen, Stephanie B. ; Harding, Eric H. ; McPherson, Leroy A. ; Rochau, G.A. ; Schmit, Paul S. ; Sefkow, Adam B. ; Sinars, Daniel S. ; Cooper, Gary W.
McBride, Ryan D. ; Gomez, Matthew R. ; Hansen, Stephanie B. ; Jennings, Christopher A. ; Bliss, David E. ; Knapp, Patrick K. ; Schmit, Paul S. ; Awe, Thomas J. ; Martin, Matthew ; Sinars, Daniel S. ; Greenly, John B.; Intrator, Tom P.; Weber, Tom E.
Schmit, Paul S. ; Knapp, Patrick K. ; Hansen, Stephanie B. ; Gomez, Matthew R. ; Hahn, Kelly D. ; Sinars, Daniel S. ; Peterson, Kyle J. ; Slutz, Stephen A. ; Sefkow, Adam B. ; Awe, Thomas J. ; Harding, Eric H. ; Jennings, Christopher A.
Nature
Bailey, James E. ; Nagayama, Taisuke N. ; Loisel, Guillaume P. ; Rochau, G.A. ; Blancard, C.B.; Colgan, J.C.; Cosse, Ph.C.; Faussurier, G.F.; Fontes, C.J.F.; Gilleron, F.G.; Golovkin, I.G.; Hansen, Stephanie B. ; Iglesias, C.A.I.; Kilcrease, D.P.K.; MacFarlane, J.J.M.; Mancini, R.C.M.; Orban, C.O.; Pain, J.-CP.; Pradhan, A.K.P.; Sherrill, M.S.; Wilson, B.G.W.
Jones, Brent M. ; Apruzese, J.P.A.; Giuliani, J.L.G.; Thornhill, J.W.T.; Harvey-Thompson, Adam J. ; Ampleford, David A. ; Jennings, Christopher A. ; Hansen, Stephanie B. ; Moore, Nathan W. ; Lamppa, Derek C. ; Coverdale, Christine A. ; Cuneo, M.E. ; Rochau, G.A.
Ampleford, David A. ; Hansen, Stephanie B. ; Coverdale, Christine A. ; Knapp, Patrick K. ; Bell, Kate S. ; Harper-Slaboszewicz, V.H. ; McPherson, Leroy A. ; Jones, Brent M. ; Rochau, G.A. ; Cuneo, M.E.
Hansen, Stephanie B.
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.
Hansen, Stephanie B.
Harvey-Thompson, Adam J. ; Jennings, Christopher A. ; Jones, Brent M. ; Ampleford, David A. ; Hansen, Stephanie B. ; Lamppa, Derek C. ; Cuneo, M.E. ; Reneker, Joseph R. ; Johnson, Drew J. ; Jones, Michael J. ; Moore, N.W.M.; Flanagan, Timothy M. ; Mckenney, John M. ; Rochau, G.A. ; Waisman, E.M.W.; Coverdale, Christine A. ; Thornhill, J.W.T.; Giuliani, J.L.G.; Chong, Y.K.C.; Velikovich, A.L.V.; Dasgupta, A.D.; Apruzese, J.P.A.
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.
Ampleford, David A. ; Jennings, Christopher A. ; Jones, Brent M.; Hansen, Stephanie B. ; Lake, Patrick W. ; Rochau, G.A. ; Bailey, James E. ; Dunham, Gregory S. ; Cuneo, M.E. ; Coverdale, Christine A. ; Bernshtam, V.B.; Fisher, V.F.; Zarnitsky, Y.Z.; Starobinets, A.S.; Weingarten, L.W.; Doron, R.D.
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.
Ampleford, David A. ; Chittenden, J.P.C.; Appelbe, B.D.A.; Niasse, N.P.L.N.; Jennings, Christopher A. ; Hansen, Stephanie B.
Hansen, Stephanie B. ; Rochau, G.A. ; Harding, Eric H. ; Ao, Tommy A. ; Gomez, Matthew R.
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