Magnetically Driven Implosions for Inertial Confinement Fusion at Sandia National Laboratories

Cuneo, M. E.; Herrmann, Mark; Sinars, D.B.; Slutz, Stephen A.; Stygar, W. A.; Vesey, R. A.; Sefkow, A. B.; Rochau, G. A.; Chandler, G. A.; Bailey, J. E.; Porter, J. L.; McBride, R. D.; Rovang, Dean C.; Mazarakis, M.G.; Yu, Edmund; Lamppa, Derek C.; Peterson, Kyle; Nakhleh, Charles; Hansen, Stephanie B.; Lopez, Andrew; Savage, M. E.; Jennings, Christopher; Martin, Matthew; Lemke, R.W.; Atherton, Briggs W.; Smith, I. C.; Rambo, Patrick K.; Jones, M. C.; López, M. R.; Christenson, P. J.; Sweeney, M. A.; Jones, B.; McPherson, Leroy A.; Harding, Eric; Gómez, M. R.; Knapp, Patrick; Awe, T. J.; Leeper, R. J.; Ruiz, C. L.; Cooper, G. W.; Hahn, Kelly; McKenney, J. L.; Owen, A.; McKee, G. R.; Leifeste, G.T.; Ampleford, D. J.; Waisman, E.; Harvey‐Thompson, A. J.; Kaye, R.J.; Hess, Mark; Rosenthal, S.E.; Matzen, M. K.

doi:10.1109/tps.2012.2223488

Cited by 123 publications

(36 citation statements)

References 111 publications

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“…Yet, in order to assess the general effect of collisions on the dynamically screened ion potential we include a separate subsection IV D where we use values of the collision frequency ν that are deliberately chosen larger than those of Eq. (4).…”

Section: Mermin Dielectric Function Collision Frequency and Permentioning

confidence: 99%

“…Examples of recent experimental studies include the ultrafast thermalization of laser plasmas [1] or free electron laser excited plasmas [2], inertial confinement fusion experiments at the National Ignition Facility [3] and magnetized Z-pinch experiments at Sandia [4,5]. Questions of fundamental theoretical importance are the energy loss of energetic particles (stopping poser) in such a plasma, e.g.…”

Section: Introductionmentioning

confidence: 99%

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Ion potential in warm dense matter: Wake effects due to streaming degenerate electrons

et al. 2015

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The effective dynamically screened potential of a classical ion in a stationary flowing quantum plasma at finite temperature is investigated. This is a key quantity for thermodynamics and transport of dense plasmas in the warm dense matter regime. This potential has been studied before within hydrodynamic approaches or based on the zero temperature Lindhard dielectric function. Here we extend the kinetic analysis by including the effects of finite temperature and of collisions based on the Mermin dielectric function. The resulting ion potential exhibits an oscillatory structure with attractive minima (wakes) and, thus, strongly deviates from the static Yukawa potential of equilibrium plasmas. This potential is analyzed in detail for high-density plasmas with values of the Brueckner parameter in the range 0.1 ≤ rs ≤ 1, for a broad range of plasma temperature and electron streaming velocity. It is shown that wake effects become weaker with increasing temperature of the electrons. Finally, we obtain the minimal electron streaming velocity for which attraction between ions occurs. This velocity turns out to be less than the electron Fermi velocity. Our results allow, for the first time, for reliable predictions of the strength of wake effects in nonequilibrium quantum plasmas with fast streaming electrons showing that these effects are crucial for transport under warm dense matter conditions, in particular for laser-matter interaction, electron-ion temperature equilibration and for stopping power.

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Section: Mermin Dielectric Function Collision Frequency and Permentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ion potential in warm dense matter: Wake effects due to streaming degenerate electrons

et al. 2015

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“…Direct magnetically-driven implosions for inertial confinement fusion (ICF) are an interesting subclass of magneto-inertial fusion (also called magnetized target fusion) approaches 3,4 because the absorbed target energies and coupling efficiencies are both significantly enhanced 5 compared with indirect radiation-driven ICF approaches. [5][6][7][8] The MagLIF (Magnetized Liner Inertial Fusion) concept has been presented as a path toward economically obtaining substantial thermonuclear fusion yields on pulsed-power accelerators via the implosion of cylindrical metal liners containing pre-magnetized and laser-preheated fuel. 9 The first neutronproducing experiments of the concept have occurred with encouraging preliminary results.…”

Section: Introductionmentioning

confidence: 99%

Design of magnetized liner inertial fusion experiments using the Z facility

et al. 2014

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The magnetized liner inertial fusion concept has been presented as a path toward obtaining substantial thermonuclear fusion yields using the Z accelerator [S. A. Slutz et al., Phys. Plasmas 17, 056303 (2010)]. We present the first integrated magnetohydrodynamic simulations of the inertial fusion targets, which self-consistently include laser preheating of the fuel, the presence of electrodes, and end loss effects. These numerical simulations provided the design for the first thermonuclear fusion neutron-producing experiments on Z using capabilities that presently exist: peak currents of Imax = 18–20 MA, pre-seeded axial magnetic fields of Bz0=10 T, laser preheat energies of about Elas = 2 kJ delivered in 2 ns, DD fuel, and an aspect ratio 6 solid Be liner imploded to 70 km/s. Specific design details and observables for both near-term and future experiments are discussed, including sensitivity to laser timing and absorbed preheat energy. The initial experiments measured stagnation radii rstag<75 μm, temperatures around 3 keV, and isotropic neutron yields up to YnDD=2×1012, with inferred alpha-particle magnetization parameters around rstag/rLα=1.7 [M. R. Gomez et al., Phys. Rev. Lett. (submitted)].

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“…Magnetically driven experiments effectively examine various dynamic material properties such as equations of state [1], strength [2], and opacity [3]. They also enable studies of radiation-driven hydrodynamic phenomena [4,5], and inertial confinement fusion (ICF) [6].…”

mentioning

confidence: 99%

Experimental Demonstration of the Stabilizing Effect of Dielectric Coatings on Magnetically Accelerated Imploding Metallic Liners

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Peterson

et al. 2016

Phys. Rev. Lett.

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Magnetically Driven Implosions for Inertial Confinement Fusion at Sandia National Laboratories

Cited by 123 publications

References 111 publications

Ion potential in warm dense matter: Wake effects due to streaming degenerate electrons

Ion potential in warm dense matter: Wake effects due to streaming degenerate electrons

Design of magnetized liner inertial fusion experiments using the Z facility

Experimental Demonstration of the Stabilizing Effect of Dielectric Coatings on Magnetically Accelerated Imploding Metallic Liners

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