Zobrazeno 1 - 10
of 239
pro vyhledávání: '"M. H. Key"'
Autor:
T Yabuuchi, R Mishra, C McGuffey, B Qiao, M S Wei, H Sawada, Y Sentoku, T Ma, D P Higginson, K U Akli, D Batani, H Chen, L A Gizzi, M H Key, A J Mackinnon, H S McLean, P A Norreys, P K Patel, R B Stephens, Y Ping, W Theobald, C Stoeckl, F N Beg
Publikováno v:
New Journal of Physics, Vol 15, Iss 1, p 015020 (2013)
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 relativistic electrons in the laser plasma interaction (LPI) with a gold cone and their sub
Externí odkaz:
https://doaj.org/article/8025d727c93b4fea978445d262e06a93
Autor:
T. Iwawaki, F. J. Marshall, W. Theobald, Harry McLean, A. A. Solodov, Vladimir Glebov, Riccardo Betti, H. Chen, Christopher McGuffey, J. A. Delettrez, Farhat Beg, P. K. Patel, Mingsheng Wei, Hiroshi Sawada, Chad Mileham, R.W. Luo, Tilo Döppner, Bin Qiao, Richard B. Stephens, Leonard Jarrott, Hideaki Habara, Christian Stoeckl, M. H. Key, Joao Santos, E. M. Giraldez, Toshinori Yabuuchi
Publikováno v:
Nature Physics. 12:499-504
Fast-ignition laser fusion involves directing an intense relativistic electron beam onto a fuel target. Experiments and simulations now enable a visualization of the location of fast electrons and the energy-coupling mechanisms at play.
Autor:
James Green, L. D. Van Woerkom, J. King, Andrew MacPhee, Peter Hakel, Sophia Chen, A. J. Mackinnon, R. Kodama, Alexander Robinson, Richard B. Stephens, Motoaki Nakatsutsumi, Hirotaka Nakamura, John Pasley, F. N. Beg, Tammy Ma, Hideaki Habara, Peter Norreys, Richard R. Freeman, K. Highbarger, M. H. Key, Kate Lancaster, R. L. Daskalova, Karl Krushelnick, Paul A. Jaanimagi
Understanding hydrodynamic phenomena driven by fast electron heating is important for a range of applications including fast electron collimation schemes for fast ignition and the production and study of hot, dense matter. In this work, detailed nume
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcc7bd1397743ee056fdc9d8c97f9a13
https://ora.ox.ac.uk/objects/uuid:366e0148-5ea3-4d51-a45d-b2408158ce70
https://ora.ox.ac.uk/objects/uuid:366e0148-5ea3-4d51-a45d-b2408158ce70
Autor:
Gilbert Collins, T. Ma, M. H. Key, A. J. Mackinnon, A. V. Hamza, Nobuhiko Izumi, Roberto Mancini, J. D. Kilkenny, Tilo Döppner, O. S. Jones, Joseph Ralph, Debra Callahan, Otto Landen, M. A. Barrios, Reuben Epstein, L. J. Suter, D. K. Bradley, David R. Farley, V. A. Smalyuk, D. D. Meyerhofer, H-S Park, P K Patel, S. H. Glenzer, Joseph J. MacFarlane, R. L. McCrory, B. A. Hammel, T. C. Sangster, C. J. Cerjan, S. M. Glenn, Bruce Remington, Howard A. Scott, Richard Town, Damien Hicks, K. B. Fournier, Nathan Meezan, G. A. Kyrala, Igor Golovkin, John Kline, S. N. Dixit, Susan Regan, J. L. Tucker, Melissa Edwards, A. Nikroo, P. T. Springer
Publikováno v:
AIP Conference Proceedings.
Current inertial confinement fusion experiments on the National Ignition Facility (NIF) [G. H. Miller, E. I. Moses, and C. R. Wuest, Opt. Eng. 43, 2841 (2004)] are attempting to demonstrate thermonuclear ignition using x-ray drive by imploding spheri
A simple analytic model is developed to describe the plasma parameters produced at peak compression when gas‐filled spherical shell targets are imploded by the ablation pressure produced by irradiation with constant laser power. The range of validi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cece15e659163bc5d374abd483b5bb3f
https://doi.org/10.1063/1.863769
https://doi.org/10.1063/1.863769
Autor:
Hiroshi Sawada, Chad Mileham, Gianluca Gregori, Jaroslav Kuba, H.-S. Park, James Green, A. J. Mackinnon, Richard B. Stephens, T. C. Sangster, R. A. Snavely, Ronnie Shepherd, B. Zhang, Robert Clarke, Nobuhiko Izumi, P. K. Patel, J.F. Myatt, M. H. Key, Kramer Akli, Christian Stoeckl, John Pasley, Richard R. Freeman, Kate Lancaster, D. Neely, J. A. Koch, M. Storm, Siegfried Glenzer, J. A. King, W. Theobald, J. A. Delettrez, Sean Regan, Peter Norreys, R. Heathcote
A hot, 2 to 3 keV electron temperature surface plasma was observed in the interaction of a 0.7 ps petawatt laser beam with solid copper-foil targets at intensities > 10(20) W/cm(2). Copper K-shell spectra were measured in the range of 8 to 9 keV usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f276f0e437b3713cb5ba0203829643fe
https://ora.ox.ac.uk/objects/uuid:f54633e8-f74e-44e7-93b3-779fab64d876
https://ora.ox.ac.uk/objects/uuid:f54633e8-f74e-44e7-93b3-779fab64d876
Autor:
A Dyson, M. H. Key, S.G. Preston, Peter Norreys, D. Neely, D.M. Chambers, Justin Wark, M. Castro-Colin, Matthew Zepf, A. E. Dangor
We present images of the source of extreme ultraviolet (XUV) harmonic emission at a wavelength of 220 Å from the interaction of a 20 TW, 1.053 μm Nd:glass laser beam focused to intensities up to 4X10 W cm-2 onto a solid target. From these measureme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::088059aa671a23ef4ac47b096c33dde9
https://doi.org/10.1063/1.364362
https://doi.org/10.1063/1.364362
Autor:
B. Zhang, M. H. Key, Stefan Karsch, Christian Stoeckl, R. J. Clarke, T. C. Sangster, Peter Norreys, P. K. Patel, W. Theobald
The use of a single-photon-counting x-ray charge-coupled device (CCD) camera as an x-ray spectrometer is a well-established technique in ultrashort-pulse laser experiments. In single-photon-counting mode, the pixel value of each readout pixel is prop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41bc1189e8fbb09e0c7d16852fabffdd
https://ora.ox.ac.uk/objects/uuid:fe85c1e8-b7cf-4230-b815-0467b888fa26
https://ora.ox.ac.uk/objects/uuid:fe85c1e8-b7cf-4230-b815-0467b888fa26
Autor:
R. G. Evans, Robbie Scott, Motoaki Nakatsutsumi, Tammy Ma, M. H. Key, Richard B. Stephens, K. L. Lancaster, Farhat Beg, J. King, Hiroshi Azechi, Takayoshi Norimatsu, R. Kodama, T. Yabuuchi, Peter Norreys, P. M. Nilson, James Green, Matthew Zepf, M. G. Haines, Mingsheng Wei, K. Takeda, Satyabrata Kar, T. Tanimoto, João Valente, Keiji Nagai, Kazuo Tanaka, H. Habara, J. R. Davies, Mark Sherlock
Publikováno v:
Tanimoto, T, Habara, H, Kodama, R, Nakatsutsumi, M, Tanaka, K A, Lancaster, K L, Green, J S, Scott, R H H, Sherlock, M, Norreys, P A, Evans, R G, Haines, M G, Kar, S, Zepf, M, King, J, Ma, T, Wei, M S, Yabuuchi, T, Beg, F N, Key, M H, Nilson, P, Stephens, R B, Azechi, H, Nagai, K, Norimatsu, T, Takeda, K, Valente, J & Davies, J R 2009, ' Measurements of fast electron scaling generated by petawatt laser systems ', Physics of Plasmas, vol. 16, no. 6, 062703 . https://doi.org/10.1063/1.3155086
Fast electron energy spectra have been measured for a range of intensities between 1018 and 1021 W cm-2 and for different target materials using electron spectrometers. Several experimental campaigns were conducted on petawatt laser facilities at the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d24df85b2fe45e4526da41e4a105d70
https://doi.org/10.1063/1.3155086
https://doi.org/10.1063/1.3155086