Search Results - "HEETER, R. F"

Demonstration of Geometric Effects and Resonant Scattering in the X-Ray Spectra of High-Energy-Density Plasmas by Pérez-Callejo, G, Marley, E V, Liedahl, D A, Jarrott, L C, Kemp, G E, Heeter, R F, Emig, J A, Foord, M E, Schneider, M B, Rose, S J, Wark, J S

“…In a plasma of sufficient size and density, photons emitted within the system have a probability of being reabsorbed and reemitted multiple times-a phenomenon…”
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Charge-state distribution and doppler effect in an expanding photoionized plasma by FOORD, M. E, HEETER, R. F, JONAUSKAS, V, KISIELIUS, R, MIX, L. P, RAMSBOTTOM, C, SPRINGER, P. T, KEENAN, F. P, ROSE, S. J, GOLDSTEIN, W. H, VAN HOOF, P. A. M, THOE, R. S, BAILEY, J. E, CUNEO, M. E, CHUNG, H.-K, LIEDAHL, D. A, FOURNIER, K. B, CHANDLER, G. A

“…The charge state distributions of Fe, Na, and F are determined in a photoionized laboratory plasma using high resolution x-ray spectroscopy. Independent…”
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Benchmark measurements of the ionization balance of non-local-thermodynamic-equilibrium gold plasmas by Heeter, R F, Hansen, S B, Fournier, K B, Foord, M E, Froula, D H, Mackinnon, A J, May, M J, Schneider, M B, Young, B K F

“…We present a series of benchmark measurements of the ionization balance of well-characterized gold plasmas with and without external radiation fields at…”
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Chaotic regime of Alfvén Eigenmode wave-particle interaction by Heeter, R F, Fasoli, A F, Sharapov, S E

“…The chaotic regime in Alfvén eigenmode wave-particle interaction is identified for the first time in the tokamak plasma of the Joint European Torus. The Alfvén…”
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Nonlinear Splitting of Fast Particle Driven Waves in a Plasma: Observation and Theory by Fasoli, A., Breizman, B. N., Borba, D., Heeter, R. F., Pekker, M. S., Sharapov, S. E.

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A proposal to measure iron opacity at conditions close to the solar convective zone-radiative zone boundary by Hoarty, D J, Morton, J, Jeffery, M, Pattison, L K, Wardlow, A, Mangles, S P D, Rose, S J, Iglesias, C, Opachich, K, Heeter, R F, Perry, T S

“…A major problem in stellar modelling is the discrepancy between solar models and helioseismology data in the position of the convective zone-radiative zone…”
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Energy levels, radiative rates and electron impact excitation rates for transitions in He-like N VI, F VIII and Na X by Aggarwal, K M, Keenan, F P, Heeter, R F

“…In this paper, we report calculations for energy levels, radiative rates and electron impact excitation rates for transitions in He-like N VI, F VIII and Na X…”
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Energy levels, radiative rates and electron impact excitation rates for transitions in Li-like N V, F VII, Ne VIII and Na IX by Aggarwal, K M, Keenan, F P, Heeter, R F

“…In this paper, we report calculations of energy levels, radiative rates and electron impact excitation rates for transitions in Li-like N V, F VII, Ne VIII and…”
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Energy levels, radiative rates and electron impact excitation rates for transitions in H-like N VII, O VIII, F IX, Ne X and Na XI by Aggarwal, K M, Keenan, F P, Heeter, R F

“…We report calculations of energy levels, radiative rates and electron impact excitation rates for transitions in H-like N VII, O VIII, F IX, Ne X and Na XI…”
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Modeling X-Ray Photoionized Plasmas Produced at the Sandia Z-Facility by Hoof, PAM, Foord, ME, Heeter, R F, Bailey, JE, Chung, H-K, Cuneo, ME, Goldstein, W H, Jonauskas, V, Keenan, F P, Kisielius, R, Liedahl, DA, Ramsbottom, C, Rose, S J, Springer, P T, Thoe, R S

“…In experiments at the high-power Z-facility at Sandia National Laboratory in Albuquerque, New Mexico, we have been able to produce a low density photoionized…”
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MHD spectroscopy through detecting toroidal Alfvén eigenmodes and Alfvén wave cascades by Sharapov, S.E, Testa, D, Alper, B, Borba, D.N, Fasoli, A, Hawkes, N.C, Heeter, R.F, Mantsinen, M, Von Hellermann, M.G

“…Toroidal Alfvén eigenmodes and a new class of modes, the Alfvén cascades, excited by energetic ions are observed in the JET tokamak. Measurements of these…”
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Modelling, design and diagnostics for a photoionised plasma experiment by Hall, I. M., Durmaz, T., Mancini, R. C., Bailey, J. E., Rochau, G. A., Rosenberg, M. J., Cohen, D. H., Golovkin, I. E., MacFarlane, J. J., Sherril, M. E., Abdallah, J., Heeter, R. F., Foord, M. E., Glenzer, S. H., Scott, H. A.

“…Photoionised plasmas are common in astrophysical environments and new high resolution spectra from such sources have been recorded in recent years by the…”
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Study of X-ray photoionized Fe plasma and comparisons with astrophysical modeling codes by Foord, M.E., Heeter, R.F., Chung, H.-K., van Hoof, P.A.M., Bailey, J.E., Cuneo, M.E., Liedahl, D.A., Fournier, K.B., Jonauskas, V., Kisielius, R., Ramsbottom, C., Springer, P.T., Keenan, F.P., Rose, S.J., Goldstein, W.H.

“…The charge state distributions of Fe, Na and F are determined in a photoionized laboratory plasma using high-resolution X-ray spectroscopy. Independent…”
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Neon photoionization experiments driven by Z-pinch radiation by Bailey, J.E., Cohen, D., Chandler, G.A., Cuneo, M.E., Foord, M.E., Heeter, R.F., Jobe, D., Lake, P., Liedahl, D.A., MacFarlane, J.J., Nash, T.J., Nielson, D., Smelser, R., Stygar, W.A.

“…Present-day Z-pinch experiments generate ∼2×10 21 erg/ s peak power, ∼6 ns full-width at half-maximum X-ray bursts that provide new possibilities to study…”
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Progress toward NIF opacity measurements by Perry, T.S., Heeter, R.F., Opachich, Y.P., Johns, H.M., King, J.A., Dodd, E.S., DeVolder, B.G., Sherrill, M.E., Wilson, B.G., Iglesias, C.A., Kline, J.L., Flippo, K.A., Cardenas, T., Schneider, M.B., Liedahl, D.A., Urbatsch, T.J., Douglas, M.R., Bailey, J.E., Rochau, G.A.

“…The opacities of iron and other mid-Z elements help to regulate the transport of energy in the sun. Recent experiments on the Sandia National Laboratories Z…”
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Progress toward NIF opacity measurements by Perry, T. S., Heeter, R. F., Opachich, Y. P., Johns, H. M., King, J. A., Dodd, E. S., DeVolder, B. G., Sherrill, M. E., Wilson, B. G., Iglesias, C. A., Kline, J. L., Flippo, K. A., Cardenas, T., Schneider, M. B., Liedahl, D. A., Urbatsch, T. J., Douglas, M. R., Bailey, J. E., Rochau, G. A.

“…The opacities of iron and other mid-Z elements help to regulate the transport of energy in the sun. Recent experiments on the Sandia National Laboratories Z…”
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Progress toward NIF opacity measurements by Perry, T. S., Heeter, R. F., Opachich, Y. P., Johns, H. M., King, J. A., Dodd, E. S., DeVolder, B. G., Sherrill, M. E., Wilson, B. G., Iglesias, C. A., Kline, J. L., Flippo, K. A., Cardenas, T., Schneider, M. B., Liedahl, D. A., Urbatsch, T. J., Douglas, M. R., Bailey, J. E., Rochau, G. A.

“…The opacities of iron and other mid-Z elements help to regulate the transport of energy in the sun. Recent experiments on the Sandia National Laboratories Z…”
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Replicating the Z iron opacity experiments on the NIF by Perry, T.S., Heeter, R.F., Opachich, Y.P., Ross, P.W., Kline, J.L., Flippo, K.A., Sherrill, M.E., Dodd, E.S., DeVolder, B.G., Cardenas, T., Archuleta, T.N., Craxton, R.S., Zhang, R., McKenty, P.W., Garcia, E.M., Huffman, E.J., King, J.A., Ahmed, M.F., Emig, J.A., Ayers, S.L, Barrios, M.A., May, M.J., Schneider, M.B., Liedahl, D.A., Wilson, B.G., Urbatsch, T.J., Iglesias, C.A., Bailey, J.E., Rochau, G.A.

“…X-ray opacity is a crucial factor of all radiation-hydrodynamics calculations, yet it is one of the least validated of the material properties in the…”
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Characterization of a hybrid target multi-keV x-ray source by a multi-parameter statistical analysis of titanium K-shell emission by Primout, M., Babonneau, D., Jacquet, L., Gilleron, F., Peyrusse, O., Fournier, K.B., Marrs, R., May, M.J., Heeter, R.F., Wallace, R.J.

“…We have studied the titanium K-shell emission spectra from multi-keV x-ray source experiments with hybrid targets on the OMEGA laser facility. Using the…”
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Long duration X-ray drive hydrodynamics experiments relevant for laboratory astrophysics by Casner, A., Martinez, D., Smalyuk, V., Masse, L., Kane, J.O., Villette, B., Fariaut, J., Oudot, G., Liberatore, S., Mancini, R.C., Remington, B.A., Heeter, R.F.

“…The advent of high-power lasers facilities such as the National Ignition Facility (NIF), and the Laser Megajoule (LMJ) in the near future, opens a new era in…”
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