Search Results - "Higginson, D. P."

Electron acceleration in laboratory-produced turbulent collisionless shocks by Fiuza, F., Swadling, G. F., Grassi, A., Rinderknecht, H. G., Higginson, D. P., Ryutov, D. D., Bruulsema, C., Drake, R. P., Funk, S., Glenzer, S., Gregori, G., Li, C. K., Pollock, B. B., Remington, B. A., Ross, J. S., Rozmus, W., Sakawa, Y., Spitkovsky, A., Wilks, S., Park, H.-S.

“…Astrophysical collisionless shocks are among the most powerful particle accelerators in the Universe. Generated by violent interactions of supersonic plasma…”
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Measurement of Kinetic-Scale Current Filamentation Dynamics and Associated Magnetic Fields in Interpenetrating Plasmas by Swadling, G. F., Bruulsema, C., Fiuza, F., Higginson, D. P., Huntington, C. M., Park, H-S., Pollock, B. B., Rozmus, W., Rinderknecht, H. G., Katz, J., Birkel, A., Ross, J. S.

“…We present the first local, quantitative measurements of ion current filamentation and magnetic field amplification in interpenetrating plasmas, characterizing…”
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Transition from Collisional to Collisionless Regimes in Interpenetrating Plasma Flows on the National Ignition Facility by Ross, J S, Higginson, D P, Ryutov, D, Fiuza, F, Hatarik, R, Huntington, C M, Kalantar, D H, Link, A, Pollock, B B, Remington, B A, Rinderknecht, H G, Swadling, G F, Turnbull, D P, Weber, S, Wilks, S, Froula, D H, Rosenberg, M J, Morita, T, Sakawa, Y, Takabe, H, Drake, R P, Kuranz, C, Gregori, G, Meinecke, J, Levy, M C, Koenig, M, Spitkovsky, A, Petrasso, R D, Li, C K, Sio, H, Lahmann, B, Zylstra, A B, Park, H-S

“…A study of the transition from collisional to collisionless plasma flows has been carried out at the National Ignition Facility using high Mach number (M>4)…”
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Laboratory formation of a scaled protostellar jet by coaligned poloidal magnetic field by Albertazzi, B., Ciardi, A., Nakatsutsumi, M., Vinci, T., Béard, J., Bonito, R., Billette, J., Borghesi, M., Burkley, Z., Chen, S. N., Cowan, T. E., Herrmannsdörfer, T., Higginson, D. P., Kroll, F., Pikuz, S. A., Naughton, K., Romagnani, L., Riconda, C., Revet, G., Riquier, R., Schlenvoigt, H.-P., Skobelev, I. Yu, Faenov, A.Ya, Soloviev, A., Huarte-Espinosa, M., Frank, A., Portugall, O., Pépin, H., Fuchs, J.

“…Although bipolar jets are seen emerging from a wide variety of astrophysical systems, the issue of their formation and morphology beyond their launching is…”
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Sustained Neutron Production from a Sheared-Flow Stabilized Z Pinch by Zhang, Y, Shumlak, U, Nelson, B A, Golingo, R P, Weber, T R, Stepanov, A D, Claveau, E L, Forbes, E G, Draper, Z T, Mitrani, J M, McLean, H S, Tummel, K K, Higginson, D P, Cooper, C M

“…The sheared-flow stabilized Z pinch has demonstrated long-lived plasmas with fusion-relevant parameters. We present the first experimental results…”
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Temporal Narrowing of Neutrons Produced by High-Intensity Short-Pulse Lasers by Higginson, D P, Vassura, L, Gugiu, M M, Antici, P, Borghesi, M, Brauckmann, S, Diouf, C, Green, A, Palumbo, L, Petrascu, H, Sofia, S, Stardubtsev, M, Willi, O, Kar, S, Negoita, F, Fuchs, J

“…The production of neutron beams having short temporal duration is studied using ultraintense laser pulses. Laser-accelerated protons are spectrally filtered…”
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Electron Injection via Modified Diffusive Shock Acceleration in High-Mach-number Collisionless Shocks by Grassi, A., Rinderknecht, H. G., Swadling, G. F., Higginson, D. P., Park, H.-S., Spitkovsky, A., Fiuza, F.

“…Abstract The ability of collisionless shocks to efficiently accelerate nonthermal electrons via diffusive shock acceleration (DSA) is thought to require an…”
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Highly Resolved Measurements of a Developing Strong Collisional Plasma Shock by Rinderknecht, Hans G, Park, H-S, Ross, J S, Amendt, P A, Higginson, D P, Wilks, S C, Haberberger, D, Katz, J, Froula, D H, Hoffman, N M, Kagan, G, Keenan, B D, Vold, E L

“…The structure of a strong collisional shock front forming in a plasma is directly probed for the first time in laser-driven gas-jet experiments. Thomson…”
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Elevated Electron Temperature Coincident with Observed Fusion Reactions in a Sheared-Flow-Stabilized Z Pinch by Levitt, B, Goyon, C, Banasek, J T, Bott-Suzuki, S C, Liekhus-Schmaltz, C, Meier, E T, Morton, L A, Taylor, A, Young, W C, Nelson, B A, Sutherland, D A, Quinley, M, Stepanov, A D, Barhydt, J R, Tsai, P, Morgan, K D, van Rossum, N, Hossack, A C, Weber, T R, McGehee, W A, Nguyen, P, Shah, A, Kiddy, S, Van Patten, M, Youmans, A E, Higginson, D P, McLean, H S, Wurden, G A, Shumlak, U

“…The sheared-flow-stabilized Z pinch concept has been studied extensively and is able to produce fusion-relevant plasma parameters along with neutron production…”
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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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Laboratory disruption of scaled astrophysical outflows by a misaligned magnetic field by Revet, G., Khiar, B., Filippov, E., Argiroffi, C., Béard, J., Bonito, R., Cerchez, M., Chen, S. N., Gangolf, T., Higginson, D. P., Mignone, A., Olmi, B., Ouillé, M., Ryazantsev, S. N., Skobelev, I. Yu, Safronova, M. I., Starodubtsev, M., Vinci, T., Willi, O., Pikuz, S., Orlando, S., Ciardi, A., Fuchs, J.

“…The shaping of astrophysical outflows into bright, dense, and collimated jets due to magnetic pressure is here investigated using laboratory experiments. Here…”
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Enhancement of Quasistationary Shocks and Heating via Temporal Staging in a Magnetized Laser-Plasma Jet by Higginson, D P, Khiar, B, Revet, G, Béard, J, Blecher, M, Borghesi, M, Burdonov, K, Chen, S N, Filippov, E, Khaghani, D, Naughton, K, Pépin, H, Pikuz, S, Portugall, O, Riconda, C, Riquier, R, Rodriguez, R, Ryazantsev, S N, Skobelev, I Yu, Soloviev, A, Starodubtsev, M, Vinci, T, Willi, O, Ciardi, A, Fuchs, J

“…We investigate the formation of a laser-produced magnetized jet under conditions of a varying mass ejection rate and a varying divergence of the ejected plasma…”
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Dynamics of relativistic laser-plasma interaction on solid targets by Ping, Y, Kemp, A J, Divol, L, Key, M H, Patel, P K, Akli, K U, Beg, F N, Chawla, S, Chen, C D, Freeman, R R, Hey, D, Higginson, D P, Jarrott, L C, Kemp, G E, Link, A, McLean, H S, Sawada, H, Stephens, R B, Turnbull, D, Westover, B, Wilks, S C

“…A novel time-resolved diagnostic is used to record the critical surface motion during picosecond-scale relativistic laser interaction with a solid target…”
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X-ray spectroscopy evidence for plasma shell formation in experiments modeling accretion columns in young stars by Filippov, E. D., Skobelev, I. Yu, Revet, G., Chen, S. N., Khiar, B., Ciardi, A., Khaghani, D., Higginson, D. P., Pikuz, S. A., Fuchs, J.

“…Recent achievements in laboratory astrophysics experiments with high-power lasers have allowed progress in our understanding of the early stages of star…”
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Magnetically guided fast electrons in cylindrically compressed matter by Pérez, F, Debayle, A, Honrubia, J, Koenig, M, Batani, D, Baton, S D, Beg, F N, Benedetti, C, Brambrink, E, Chawla, S, Dorchies, F, Fourment, C, Galimberti, M, Gizzi, L A, Gremillet, L, Heathcote, R, Higginson, D P, Hulin, S, Jafer, R, Koester, P, Labate, L, Lancaster, K L, MacKinnon, A J, MacPhee, A G, Nazarov, W, Nicolai, P, Pasley, J, Ramis, R, Richetta, M, Santos, J J, Sgattoni, A, Spindloe, C, Vauzour, B, Vinci, T, Volpe, L

“…Fast electrons produced by a 10 ps, 160 J laser pulse through laser-compressed plastic cylinders are studied experimentally and numerically in the context of…”
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Laboratory investigation of particle acceleration and magnetic field compression in collisionless colliding fast plasma flows by Higginson, D. P., Korneev, Ph, Ruyer, C., Riquier, R., Moreno, Q., Béard, J., Chen, S. N., Grassi, A., Grech, M., Gremillet, L., Pépin, H., Perez, F., Pikuz, S., Pollock, B., Riconda, C., Shepherd, R., Starodubtsev, M., Tikhonchuk, V., Vinci, T., d’Humières, E., Fuchs, J.

“…In many natural phenomena in space (cosmic-rays, fast winds), non-thermal ion populations are produced, with wave-particle interactions in self-induced…”
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Hot electron temperature and coupling efficiency scaling with prepulse for cone-guided fast ignition by Ma, T, Sawada, H, Patel, P K, Chen, C D, Divol, L, Higginson, D P, Kemp, A J, Key, M H, Larson, D J, Le Pape, S, Link, A, MacPhee, A G, McLean, H S, Ping, Y, Stephens, R B, Wilks, S C, Beg, F N

“…The effect of increasing prepulse energy levels on the energy spectrum and coupling into forward-going electrons is evaluated in a cone-guided fast-ignition…”
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Impact of extended preplasma on energy coupling in kilojoule energy relativistic laser interaction with cone wire targets relevant to fast ignition by Yabuuchi, T, Mishra, R, McGuffey, C, Qiao, B, Wei, M S, Sawada, H, Sentoku, Y, Ma, T, Higginson, D P, Akli, K U, Batani, D, Chen, H, Gizzi, L A, Key, M H, Mackinnon, A J, McLean, H S, Norreys, P A, Patel, P K, Stephens, R B, Ping, Y, Theobald, W, Stoeckl, C, Beg, F N

“…Cone-guided fast ignition laser fusion depends critically on details of the interaction of an intense laser pulse with the inside tip of a cone. Generation of…”
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First Experiments and Radiographs on the MegaJOuLe Neutron Imaging Radiography (MJOLNIR) Dense Plasma Focus by Schmidt, A., Anaya, E., Anderson, M., Angus, J., Chapman, S., Cooper, C., Drury, O., Goyon, C., Hawkins, S., Higginson, D. P., Holod, I., Koh, E., Link, A., Max, D., McMahon, M., Mitrani, J., Podpaly, Y., Povilus, A., Van Lue, D.

“…A dense plasma focus (DPF) is a relatively compact coaxial plasma gun, which completes its discharge as a Z-pinch. These devices are designed to operate at a…”
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Improving quantitative measurements for the evaporative light scattering detector by MATHEWS, B. T, HIGGINSON, P. D, LYONS, R, MITCHELL, J. C, SACH, N. W, SNOWDEN, M. J, TAYLOR, M. R, WRIGHT, A. G

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