Search Results - "Beg, F. N"

Optical diagnostics of laser-produced plasmas by Harilal, S. S., Phillips, M. C., Froula, D. H., Anoop, K. K., Issac, R. C., Beg, F. N.

“…Laser-produced plasmas (LPPs) engulf exotic and complex conditions ranging in temperature, density, pressure, magnetic and electric fields, charge states,…”
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Gigabar spherical shock generation on the OMEGA laser by Nora, R, Theobald, W, Betti, R, Marshall, F J, Michel, D T, Seka, W, Yaakobi, B, Lafon, M, Stoeckl, C, Delettrez, J, Solodov, A A, Casner, A, Reverdin, C, Ribeyre, X, Vallet, A, Peebles, J, Beg, F N, Wei, M S

“…This Letter presents the first experimental demonstration of the capability to launch shocks of several-hundred Mbar in spherical targets--a milestone for…”
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Focussing Protons from a Kilojoule Laser for Intense Beam Heating using Proximal Target Structures by McGuffey, C., Kim, J., Wei, M. S., Nilson, P. M., Chen, S. N., Fuchs, J., Fitzsimmons, P., Foord, M. E., Mariscal, D., McLean, H. S., Patel, P. K., Stephens, R. B., Beg, F. N.

“…Proton beams driven by chirped pulse amplified lasers have multi-picosecond duration and can isochorically and volumetrically heat material samples,…”
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Self-Consistent Simulation of Transport and Energy Deposition of Intense Laser-Accelerated Proton Beams in Solid-Density Matter by Kim, J, Qiao, B, McGuffey, C, Wei, M S, Grabowski, P E, Beg, F N

“…The first self-consistent hybrid particle-in-cell (PIC) simulation of intense proton beam transport and energy deposition in solid-density matter is presented…”
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Generation of Superponderomotive Electrons in Multipicosecond Interactions of Kilojoule Laser Beams with Solid-Density Plasmas by Sorokovikova, A, Arefiev, A V, McGuffey, C, Qiao, B, Robinson, A P L, Wei, M S, McLean, H S, Beg, F N

“…The interaction of a multipicosecond, kilojoule laser pulse with a surface of a solid target has been shown to produce electrons with energies far beyond the…”
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Self-Generated Magnetic and Electric Fields at a Mach-6 Shock Front in a Low Density Helium Gas by Dual-Angle Proton Radiography by Hua, R, Kim, J, Sherlock, M, Bailly-Grandvaux, M, Beg, F N, McGuffey, C, Wilks, S, Wen, H, Joglekar, A, Mori, W, Ping, Y

“…Shocks are abundant both in astrophysical and laboratory systems. While the electric fields generated at shock fronts have recently attracted great attention,…”
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Hot-electron temperature and laser-light absorption in fast ignition by Haines, M G, Wei, M S, Beg, F N, Stephens, R B

“…Experimental data [F. N. Beg, Phys. Plasmas 4, 447 (1997)10.1063/1.872103] indicate that for intense short-pulse laser-solid interactions at intensities up to…”
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Experimental evidence for the enhanced and reduced stopping regimes for protons propagating through hot plasmas by Chen, S. N., Atzeni, S., Gangolf, T., Gauthier, M., Higginson, D. P., Hua, R., Kim, J., Mangia, F., McGuffey, C., Marquès, J.-R., Riquier, R., Pépin, H., Shepherd, R., Willi, O., Beg, F. N., Deutsch, C., Fuchs, J.

“…Our understanding of the dynamics of ion collisional energy loss in a plasma is still not complete, in part due to the difficulty and lack of high-quality…”
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Computational study of laser-produced plasma, EUV generation, and the impact of magnetic fields by Kim, J., Bally-Grandvaux, M., Beg, F. N.

“…Efficient generation of 13.5 nm light with increased conversion efficiency and output power is important for Extreme Ultraviolet (EUV) lithography…”
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Thermal conductivity measurements of proton-heated warm dense aluminum by McKelvey, A., Kemp, G. E., Sterne, P. A., Fernandez-Panella, A., Shepherd, R., Marinak, M., Link, A., Collins, G. W., Sio, H., King, J., Freeman, R. R., Hua, R., McGuffey, C., Kim, J., Beg, F. N., Ping, Y.

“…Thermal conductivity is one of the most crucial physical properties of matter when it comes to understanding heat transport, hydrodynamic evolution, and energy…”
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Collimated Propagation of Fast Electron Beams Accelerated by High-Contrast Laser Pulses in Highly Resistive Shocked Carbon by Vaisseau, X, Morace, A, Touati, M, Nakatsutsumi, M, Baton, S D, Hulin, S, Nicolaï, Ph, Nuter, R, Batani, D, Beg, F N, Breil, J, Fedosejevs, R, Feugeas, J-L, Forestier-Colleoni, P, Fourment, C, Fujioka, S, Giuffrida, L, Kerr, S, McLean, H S, Sawada, H, Tikhonchuk, V T, Santos, J J

“…Collimated transport of ultrahigh intensity electron current was observed in cold and in laser-shocked vitreous carbon, in agreement with simulation…”
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Rayleigh-Taylor instability of an ultrathin foil accelerated by the radiation pressure of an intense laser by Palmer, C A J, Schreiber, J, Nagel, S R, Dover, N P, Bellei, C, Beg, F N, Bott, S, Clarke, R J, Dangor, A E, Hassan, S M, Hilz, P, Jung, D, Kneip, S, Mangles, S P D, Lancaster, K L, Rehman, A, Robinson, A P L, Spindloe, C, Szerypo, J, Tatarakis, M, Yeung, M, Zepf, M, Najmudin, Z

“…We report experimental evidence for a Rayleigh-Taylor-like instability driven by radiation pressure of an ultraintense (10(21) W/cm(2)) laser pulse. The…”
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Investigation of laser pulse length and pre-plasma scale length impact on hot electron generation on OMEGA-EP by Peebles, J, Wei, M S, Arefiev, A V, McGuffey, C, Stephens, R B, Theobald, W, Haberberger, D, Jarrott, L C, Link, A, Chen, H, McLean, H S, Sorokovikova, A, Krasheninnikov, S, Beg, F N

“…A series of experiments studying pre-plasma's effect on electron generation and transport due to a high intensity laser were conducted on the OMEGA-EP laser…”
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Comparison of excitation temperature of a laser-produced plasma by combining emission and absorption spectroscopy by Polek, M. P., Phillips, M. C., Beg, F. N., Harilal, S. S.

“…Measurement of the temporal evolution of laser-produced plasma temperature is very important for many of its applications, and several plasma diagnostic tools…”
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Dynamic focusing of laser driven positron jets by self-generated fields by Kim, J, Link, A, Canning, D, Fitzsimmons, P, Fooks, J A, Kerr, S, Ma, T, Manuel, M J-E, Mariscal, D, Wallace, R, Williams, G J, Willingale, L, Beg, F N, Chen, H

“…Focusing effect of laser-driven positron jets by self-generated target sheath fields has been observed for the first time experimentally and the results are…”
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MA-class linear transformer driver for Z -pinch research by Conti, F., Valenzuela, J. C., Fadeev, V., Aybar, N., Reisman, D. B., Williams, A., Collins, G., Narkis, J., Ross, M. P., Beg, F. N., Spielman, R. B.

“…A linear transformer driver (LTD) generator capable of delivering up to 0.9 MA current pulses with 160 ns rise time has been assembled and commissioned at…”
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Enhanced relativistic-electron-beam energy loss in warm dense aluminum by Vaisseau, X, Debayle, A, Honrubia, J J, Hulin, S, Morace, A, Nicolaï, Ph, Sawada, H, Vauzour, B, Batani, D, Beg, F N, Davies, J R, Fedosejevs, R, Gray, R J, Kemp, G E, Kerr, S, Li, K, Link, A, McKenna, P, McLean, H S, Mo, M, Patel, P K, Park, J, Peebles, J, Rhee, Y J, Sorokovikova, A, Tikhonchuk, V T, Volpe, L, Wei, M, Santos, J J

“…Energy loss in the transport of a beam of relativistic electrons in warm dense aluminum is measured in the regime of ultrahigh electron beam current density…”
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Laser-driven acceleration of quasi-monoenergetic, near-collimated titanium ions via a transparency-enhanced acceleration scheme by Li, J, Forestier-Colleoni, P, Bailly-Grandvaux, M, McGuffey, C, Arefiev, A V, Bulanov, S S, Peebles, J, Krauland, C, Hussein, A E, Batson, T, Fernandez, J C, Palaniyappan, S, Johnson, R P, Petrov, G M, Beg, F N

“…Laser-driven ion acceleration has been an active research area in the past two decades with the prospects of designing novel and compact ion accelerators. Many…”
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Transport of kJ-laser-driven relativistic electron beams in cold and shock-heated vitreous carbon and diamond by Bailly-Grandvaux, M, Kim, J, Krauland, C M, Zhang, S, Dozières, M, Wei, M S, Theobald, W, Grabowski, P E, Santos, J J, Nicolaï, Ph, McKenna, P, Desjarlais, M P, Beg, F N

“…We report experimental results on relativistic electron beam (REB) transport in a set of cold and shock-heated carbon samples using the high-intensity…”
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Effect of target material on fast-electron transport and resistive collimation by Chawla, S, Wei, M S, Mishra, R, Akli, K U, Chen, C D, McLean, H S, Morace, A, Patel, P K, Sawada, H, Sentoku, Y, Stephens, R B, Beg, F N

“…The effect of target material on fast-electron transport is investigated using a high-intensity (0.7 ps, 10(20)  W/cm2) laser pulse irradiated on multilayered…”
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