Publications

2015

"Selective deuterium ion acceleration using the Vulcan petawatt laser"
A. G. Krygier, J. T. Morrison, S. Kar, H. Ahmed, A. Alejo, R. Clarke, J. Fuchs, A. Green, D. Jung, A. Kleinschmidt, Z. Najmudin, H. Nakamura, P. Norreys, M. Notley, M. Oliver, M. Roth, L. Vassura, M. Zepf, M. Borghesi, and R. R. Freeman; Phys. Plasmas 22, 053102 (2015)

"Backward-propagating MeV electrons from 10^18 W/cm^2 laser interactions with water"
J. T. Morrison, E. A. Chowdhury, K. D. Frische, S. Feister, V. M. Ovchinnikov, J. A. Nees, C. Orban, R. R. Freeman and W. M. Roquemore; Phys. Plasmas 22, 043101 (2015)

"Backward-propagating MeV electrons in ultra-intense laser interactions: Standing wave acceleration and coupling to the reflected laser pulse"
Chris Orban, John T. Morrison, Enam A. Chowdhury, John A. Nees, Kyle Frische, Scott Feister, and W. M. Roquemore; Phys. Plasmas 22, 023110 (2015)

"Temporal resolution criterion for correctly simulating relativistic electron motion in a high-intensity laser field"
Alexey V. Arefiev, Ginevra E. Cochran, Douglass W. Schumacher, Alexander P.L. Robinson, and Guangye Chen; Phys. Plasmas 22, 013103 (08 January 2015)

"A higher-than-predicted measurement of iron opacity at solar interior temperatures"
J. E. Bailey, T. Nagayama, G. P. Loisel, G. A. Rochau, C. Blancard, J. Colgan, Ph. Cosse, G. Faussurier, C. J. Fontes, F. Gilleron, I. Golovkin, S. B. Hansen, C. A. Iglesias, D. P. Kilcrease, J. J. MacFarlane, R. C. Mancini, S. N. Nahar, C. Orban, J.-C. Pain, A. K. Pradhan, M. Sherrill, and B. G. Wilson; Nature 517, 56–59 (01 January 2015)


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2014

"Characterisation of deuterium spectra from laser driven multi-species sources by employing differentially filtered image plate detectors in Thomson spectrometers"
A. Alejo, S. Kar, H. Ahmed, A. G. Krygier, D. Doria, R. Clarke, J. Fernandez, R. R. Freeman, J. Fuchs, A. Green, J. S. Green, D. Jung, A. Kleinschmidt, C. L. S. Lewis, J. T. Morrison, Z. Najmudin, H. Nakamura, G. Nersisyan, P. Norreys, M. Notley, M. Oliver, M. Roth, J. A. Ruiz, L. Vassura, M. Zepf, and M. Borghesi; Rev. Sci. Instrum. 85, 093303 (2014)

"Enhancing Bremsstrahlung Production From Ultraintense Laser-Solid Interactions With Front Surface Structures"
S. Jiang, A. G. Krygier, D. W. Schumacher, K. U. Akli, R. R. Freeman; (2014)

"Modeling femtosecond-pulse laser damage using Particle-In-Cell simulations"
R. A. Mitchell, D. W. Schumacher, E. A. Chowdhury; Optical Engineering 53, 122507 (2014)

"Radiation-Reaction Trapping of Electrons in Extreme Laser Fields"
L. L. Ji, A. Pukhov, I. Yu. Kostyukov, B. F. Shen, and K. Akli; Phys. Rev. Lett. 112, 145003 (2014)

"Kα x-ray imaging of laser-irradiated, limited-mass zirconium foils"
M. Storm, B. Eichman, C. Orban, S. Jiang, G. Fiksel, C. Stoeckl, G. Dyer, T. Ditmire, R. Stephens, W. Theobald, J. A. Delettrez, R. R. Freeman, K. Akli; Phys. Plasmas 21, 072704 (2014)

"A novel femtosecond-fated, high-resolution, frequency-shifted shearing interferometry technique for probing pre-plasma expansion in ultra-intense laser experiments"
S. Feister, J. A. Nees, J. T. Morrison, K. D. Frische, C. Orban, E. A. Chowdhury, W. M. Roquemore; Rev. Sci. Inst. (2014)

"Liquid crystal films as on-demand, variable thickness (50-5000 nm) targets for intense lasers"
P. L. Poole, C. D. Andereck, D. W. Schumacher, R. L. Daskalova, S. Feister, K. M. George, C. Willis, K. U. Akli, E. A. Chowdhury; Phys. Plasmas (2014)

"Energy partition, gamma ray emission, and radiation reaction in the near-quantum electrodynamics regime of laser-plasma interaction"
L. L. Ji, A. Pukhov, E. N. Nerush, I. Yu. Kostyukov, B. F. Shen, and K. U. Akli; Phys. Plasmas 21, 023109 (2014)

"Effects of front-surface target structures on properties of relativistic laser-plasma electrons"
S. Jiang, A. G. Krygier, D. W. Schumacher, K. U. Akli, and R. R. Freeman; Phys. Rev. E 89, 013106 (2014)

"On the origin of super hot electrons from intense laser interactions with solid targets"
A. G. Krygier, D. W. Schumacher, and R. R. Freeman; Phys. Plasmas 21, 023112 (2014)


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2013

"Femtosecond laser damage threshold of pulse compression gratings for petawatt scale laser systems"
P. Poole, S. Trendafilov, G. Shvets, D. Smith, and E. Chowdhury; Optics Express 21, 026341 (2013)

"Fast Neutron production from lithium converters and laser-driven protons"
M. Storm, S. Jiang, D. Wertepny, C. Orban, J. Morrison, C. Willis, E. McCary, P. Belancourt, J. Snyder, E. Chowdhury, W. Bang, E. Gaul, G. Dyer, T. Ditmire, R. R. Freeman, and K. Akli; Phys. Plasmas 20, 053106 (2013)

"Coupling of laser energy into hot-electrons in high-contrast relativistic laser-plasma interactions"
G. E. Kemp, A. Link, Y. Ping, D. W. Schumacher, R. R. Freeman, and P. K. Patel; Phys. Plasmas 20, 033104 (2013)

"Effects of preplasma scale length and laser intensity on the divergence of laser-generated hot electrons"
V. M. Ovchinnikov, D. W. Schumacher, M. McMahon, E. A. Chowdhury, C. D. Chen, A. Morace, and R. R. Freeman; PRL 110, 065007 (2013)

"Effect of target material on fast-electron transport and resistive collimation"
S. Chawla, M. S. Wei, R. Mishra, K. U Akli, C. D. Chen, H. S. McLean, A. Morace, P. K. Patel, H. Sawada, Y. Sentoku, R. B. Stephens and F. N. Beg; PRL 110, 025001 (2013)


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2012

"Coupling of high-intensity laser light to fast electrons in cone-guided fast ignition"
K. U. Akli, C. Orban, D. Schumacher, M. Storm, M. Fatenejad, D. Lamb, and R. R. Freeman; Phys. Rev. E 86, 065402(R) (2012)

"Dynamics of Relativistic Laser-Plasma Interactions on Solid Targets"
Y. Ping, A. J. Kemp, L. Divol, M. H. Key, P. K. Patel, K. U. Akli, F. N. Beg, S. Chawla, C. D. Chen, R. R. Freeman, D. Hey, D. P. Higginson, L. C. Jarrott, G. E. Kemp, A. Link, H. S. McLean, H. Sawada, R. B. Stephens, D. Turnbull, B. Westover, and S. C. Wilks; Phys. Rev. Lett. 109, 145006 (2012)

"Time dependence of fast electron beam divergence in ultraintense laser-plasma interactions"
K. U. Akli, M. J. Storm, M. McMahon, S. Jiang, V. Ovchinnikov, D. W. Schumacher, R. R. Freeman, G. Dyer, T. Ditmire; Phys. Rev. E 86, 026404 (2012)

"Selective Deuteron Production using Target Normal Sheath Acceleration"
J. T. Morrison, M. Storm, K. U. Akli, S. Feldman, C. Willis, E. Chowdhury, R. L. Daskalova, T. Ditmire, L. Van Woerkom, R. R. Freeman; Phys. Plasmas 19, 030707 (2012)

"Hot Electron Temperature and Coupling Efficiency Scaling with Prepulse for Cone-Guided Fast Ignition"
T. Ma, H. Sawada, P. K. Patel, C. D. Chen, L. Divol, D. P. Higginson1, A. J. Kemp, M. H. Key, D. J. Larson, S. Le Pape, A. Link, A. G. MacPhee, H. S. McLean, Y. Ping, R. B. Stephens, S. C. Wilks, and F. N. Beg ; Phys. Rev. Lett. 108, 115004 (2012)


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2011

"A novel zirconium Kα imager for high energy density physics research"
K. U. Akli, M. Sanchez del Rio, S. Jiang, M. S. Storm, A. Krygier, R. B. Stephens, N. R. Pereira, E. O. Baronova, W. Theobald, Y. Ping, H. S. McLean, P. K. Patel, M. H. Key, and R. R. Freeman; Rev. Sci. Instrum. 82, 123503 (2011)

"Using time-integrated Ka images to study refluxing and the extent of pre-plasmas in LPI Experiments"
V. M. Ovchinnikov, D. W. Schumacher, G. E. Kemp, A. G. Krygier, L. D. Van Woerkom, K. U. Akli, R. R. Freeman, R. B. Stephens, and A. Link; Phys. Plasmas 18, 112702 (2011)

"Comparison of bulk and pitcher-catcher targets for laser-driven neutron production"
L. Willingale, G. M. Petrov, A. Maksimchuk, J. Davis, R. R. Freeman, A. S. Joglekar, T. Matsuoka, C. D. Murphy, V. M. Ovchinnikov, A. G. R. Thomas, L. Van Woerkom, and K. Krushelnick; Phys. Plasmas 18, 083106 (2011)

"How well do time-integrated Kα images represent hot electron spatial distributions?"
V. M. Ovchinnikov, G. E. Kemp, D. W. Schumacher, R. R. Freeman, and L. D. Van Woerkom; Physics of Plasmas 18, 072704 (2011)

"The shaped critical surface in high intensity laser plasma interaction"
D. W. Schumacher, G. E. Kemp, A. Link, R. R. Freeman, and L. D. Van Woerkom; Physics of Plasmas 18, 013102 2011 (2011)

"Effects of target charging and ion emission on the energy spectrum of emitted electrons"
A. Link, R. R. Freeman, D. W. Schumacher, and L. D. Van Woerkom; Physics of Plasmas 18, 053107 (2011)

"Design of and data reduction from compact Thomson parabola spectrometers"
J. T. Morrison, C. Willis, R. R. Freeman, and L. Van Woerkom; Rev. Sci. Instrum. 82, 033506 (2011); doi:10.1063/1.3556444

"Front vs. Rear Side Light-Ion Acceleration from High-Intensity Laser-solid Interactions"
L. Willingale, R.R. Freeman, V.Ovchinnikov, L Van Woerkom, et al., Plasma Physics and Controlled Fusion, 53 (1) 014011 (2011)


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2010

"A dual channel X-ray spectrometer for fast ignition research"
K. U. Akli, P. K. Patel, R. Van Maren, R. B. Stephens, M. H. Key, D. P. Higginson, B. Westover, C. D. Chen, A. J. Mackinnon, T. Bartal, F. N. Beg, S. Chawla, R. Fedosejevs, R. R. Freeman, D. S. Hey, G. E. Kemp, S. LePape, A. Link, T. Ma, A. G. MacPhee, H. S. McLean, Y. Ping, Y. Y. Tsui, L. D. Van Woerkom, M. S. Wei, T. Yabuuchi , S. Yuspeh; Journal of Instrumentation, 5, 7008 (2010)

"Single-shot divergence measurements of a laser-generated relativistic electron beam"
F. Perez, S. D. Baton, M. Koenig, C. D. Chen, D. Hey, M. H. Key, S. Le Pape, T. Ma, H. S. McLean, A. G. MacPhee, P. K. Patel, Y. Ping, F. N. Beg, D. P. Higginson, C. W. Murphy, H. Sawada, B. Westover, T. Yabuuchi, K. U. Akli4, E. Giraldez4, M. Hoppe, Jr.4, C. Shearer4, R. B. Stephens4, L. Gremillet5, E. Lefebvre5, R. R. Freeman6, G. E. Kemp, A. G. Krygier, L. D. Van Woerkom, R. Fedosejevs, R. H. Friesen, Y. Y. Tsui, and D. Turnbull; Phys. Plasmas 17, 113106 (2010); doi:10.1063/1.3514595

"Hot electron generation and transport using Ka Emission"
K. U. Akli, R. B. Stephens, M. H. Key, T. Bartal, F. N. Beg, S. Chawla, C. D. Chen, R. Fedosejevs, R. R. Freeman, H. Friesen, E. Giraldez, J. S. Green, D. S. Hey, D. P. Higginson, J. Hund, L. C. Jarrott, G. E. Kemp, J. A. King, A. Kryger, K. Lancaster, S. LePape, A. Link5 T. Ma, A. J. Mackinnon, A. G. MacPhee, H. S. McLean, C. Murphy, P. A. Norreys, V. Ovchinnikov, P. K. Patel, Y. Ping, H. Sawada, D. Schumacher, W. Theobald, Y. Y. Tsui, L. D. Van Woerkom, M. S. Wei, B. Westover, T. Yabuuchi J.; Phys: Conf. Ser. 244, 022026 (2010).

"Limitation on Prepulse Level for Cone-Guided Fast Ignition Inertial Confinement Fusion"
A.G. MacPhee, L. Divol, A.J. Kemp, K.U. Akli, F.N. Beg, C.D. Chen, H. Chen, D.S. Hey, R.J. Fedosejevs, R.R. Freeman, M. Henesian, M.H. Key, S. Le Pape, A. Link, T. Ma, A.J. MacKinnon, V.M. Ovchinnikov, P.K. Patel, T.W. Phillips, R.B. Stephens, M. Tabak, R. Town, Y.Y. Tsui, L.D. Van Woerkom, M.S. Wei, and S.C. Wilks; Physical Review Letters, 104 055002 (2010).

"High Intensity Laser-Plasma Interaction with Wedge-Shaped-Cavity Targets"
W. Theobald, V. Ovchinnikov, L. Van Woerkom, K. Akli, R. R. Freeman, “Physics Of Plasmas 17 (10) 103101 (2010)


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2009

"Studies on the transport of high intensity laser-generated hot electrons in cone coupled wire targets"
J.A. King, M.H. Key, K.U. Akli, R.R. Freeman, J. Green, S.P. Hatchett, D. Hey, P. Jamangi, J. Koch, K.L. Lancaster, T. Ma, A.J. MacKinnon, A. MacPhee, R. Mason, P.A. Norreys, P.K. Patel, T. Phillips, R. Stephens, W. Theobald, R.P.J. Town, L. Van Woerkom, B. Zhang, F.N. Beg; Physics of Plasmas, 16 020701 (2009)

"Bremsstrahlung and Ka fluorescence measurements for inferring conversion efficiencies into fast ignition relevant hot electrons"
C. D. Chen, P. K. Patel, D. S. Hey, A. J. Mackinnon, M. H. Key, K. U. Akli, T. Bartal, F. N. Beg, S. Chawla, H. Chen, R. R. Freeman, D. P. Higginson, A. Link, T. Y. Ma,  A. G. MacPhee,  R. B. Stephens, L. D. Van Woerkom, B. Westover, and M. Porkolab; Physics of Plasmas, 16 082705 (2009).

"A dual-channel, curved-crystal spectrograph for petawatt laser, x-ray backlighter source studies"
W. Theobald, C. Stoeckl, P.A. Jaanimagi, P.M. Nilson, M. Storm, D.D. Meyerhofer, T.C. Sangster, D. Hey, A.J. MacKinnon, H.S. Park, P.K. Patel, R. Shepherd, R.A. Sanvely, M.H. Key, J.A. King, B. Zhang, R.B. Stephens, K.U. Akli, K. Highbarger, R.L. Daskalova, L. Van Woerkom, R.R. Freeman, J.S. Green, G. Gregori, K. Lancaster, and P.A. Norreys; Review of Scientific Instruments, 80, 083501 (2009)

"Characterization of the preformed plasma for high-intensity laser-plasma interaction"
S. Le Pape, Y.Y. Tsui, A. MacPhee, D. Hey, P. Patel, A. MacKinnon, M. Key, M.S. Wei, T. Ma, F.N. Beg, R. Stephens, K. Akli, T. Link, L. Van Woerkom, and R.R. Freeman; Optics Letters, 34, 2997 (2009).

"Observations of proton beam enhancement due to erbium hydride on gold foil targets"
D.T. Offermann, R.R. Freeman, L.D. Van Woerkom, M.E. Foord, D. Hey, M.H. Key, A.J. Mackinnon, A.G. MacPhee, P.K. Patel, Y. Ping, J.J. Sanchez, N. Shen, T. Bartal, F.N. Beg, L. Espada, and C.D. Chen; Physics of Plasmas, 16, 093113 (2009).

"Radiation and hot electron temperature measurements of short-pulse laser driven hohlraums"
C.R.D. Brown, S.F. James, F.N. Beg, C. Constantin, R.L. Daskalova, R. Edwards, R.R. Freeman, D.P. Higginson, J.W. Morton, C. Niemann, D. Riley, B.R. Thomas, L. Van Woerkom, D.J. Hoarty, S.J. Rose, and G. Gregori; High Energy Density Physics, 5, 212 (2009)

"Effect of reentrant cone geometry on energy transport in intense laser-plasma interactions"
K.L. Lancaster, M. Sherlock, J.S. Green, C.D. Gregory, P. Hakel, K.U. Akli, F.N. Beg, S.N. Chen, R.R. Freeman, H. Habara, R. Heathcote, D.S. Hey, K. Highbarger, M.H. Key, R. Kodama, K. Krushelnick, H. Nakamura, M. Nakatsutsumi, J. Pasley, R.B. Stephens, M. Storm, M. Tampo, W. Theobald, L. Van Woerkom, R.L. Weber, M.S. Wei, N.C. Woolsey, T. Yabuuchi, and P.A. Norreys; Physical Review E, 80, 045401 (2009).

"Transport of energy by ultraintense laser-generated electrons in nail-wire targets"
T. Ma, M.H. Key, R.J. Mason, K.U. Akli, R.L. Daskalova, R.R. Freeman, J.S. Green, K. Highbarger, P.A. Jaanimagi, J.A. King, K.L. Lancaster, S.P. Hatchett, A.J. MacKinnon, A.G. MacPhee, P.A. Norreys, P.K. Patel, R.B. Stephens, W. Theobald, L.D. Van Woerkom, M.S. Wei, S.C. Wilks, F.N. Beg; Physics of Plasmas 16 112702 (2009).

"Progress in Fast Ignition Studies with Electrons and Protons"
A.J. Mckinnon, K. Akli, R.R. Freeman, A. Link, D. Offermann, V. Ovehinnikov, L. Van Woerkom, Atomic Processes in Plasmas, AIP Conference Proceedings, 1161, 25 (2009)


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2008

"Probing warm dense lithium by inelastic X-ray scattering"
E. García Saiz, G. Gregori, D. O. Gericke, J. Vorberger, B. Barbrel, R. J. Clarke, R. R. Freeman, S. H. Glenzer, F. Y. Khattak, M. Koenig, O. L. Landen, D. Neely, P. Neumayer, M. M. Notley, A. Pelka, D. Price, M. Roth, M. Schollmeier, C. Spindloe, R. L. Weber, L. van Woerkom, K. Wünsch, & D. Riley; Nature Physics, 4 940 (2008)

"Electron heated target temperature measurements in petawatt laser experiments based on extreme ultraviolet imaging and spectroscopy"
Ma, T., F. N. Beg, A. G. MacPhee, H. K. Chung, M. H. Key, A. J. Mackinnon, P. K. Patel, S. Hatchett, K. U. Akli, R. B. Stephens, C. D. Chen, R. R. Freeman, A. Link, D. T. Offermann, V. Ovchinnikov and L. D. Van Woerkom; Review of Scientific Instruments, 79 10E312-10E312-3 (2008)

"Density measurement of shock compressed foam using two-dimensional x-ray radiography"
S. Le Pape, A. MacPhee, D. Hey, P. Patel, A. MacKinnon, M. Key, J. Pasley, M. Wei, S. Chen, T. Ma, F. Beg, N. Alexander, R. Stephens, D. Offermann, A. Link, Linn Van Woerkom, and R. Freeman; Review of Scientific Instruments 79 106104 (2008). 

"A Bremsstrahlung spectrometer using k-edge and differential filters with image plate dosimeters"
Chen, C. D., J. A. King, M. H. Key, K. U. Akli, F. N. Beg, H. Chen, R. R. Freeman, A. Link, A. J. Mackinnon, A. G. MacPhee, P. K. Patel, M. Porkolab, R. B. Stephens and L. D. Van Woerkom; Review of Scientific Instruments 79 10E305-3 (2008)

"Diagnostics for fast ignition science (invited)"
MacPhee, A. G., K. U. Akli, F. N. Beg, C. D. Chen, H. Chen, R. Clarke, D. S. Hey, R. R. Freeman, A. J. Kemp, M. H. Key, J. A. King, S. L. Pape, A. Link, T. Y. Ma, H. Nakamura, D. T. Offermann, V. M. Ovchinnikov, P. K. Patel, T. W. Phillips, R. B. Stephens, R. Town, Y. Y. Tsui, M. S. Wei, L. D. Van Woerkom and A. J. Mackinnon;  Review of Scientific Instruments 79 10F302-5 (2008)

"Determination of electron-heated temperatures of petawatt laser-irradiated foil targets with 256 and 68 eV extreme ultraviolet imaging"
T. Ma, A. G. MacPhee, M. H. Key, S. P. Hatchett, K. U. Akli, T. W. Barbee, C. D. Chen, R. R. Freeman, J. A. King, A. Link, A. J. Mackinnon, D. T. Offermann, V. Ovchinnikov, P. K. Patel, R. B. Stephens, L. D. Van Woerkom, B. Zhang, and F. N. Beg; Review of Scientific Instruments, 79 093507 (2008)

"Extreme Ultraviolet Imaging of Electron-Heated Targets in Petawatt Laser Experiments" (Page not found)
T. Ma, A.G. MacPhee, M.H. Key, K.U. Akli, T.W. Barbee Jr., A.J. MacKinnon, R.B. Stephens, L.D. Van Woerkom, B. Zhang, F.N. Beg; IEEE Transactions on Plasma Science, 36 1126 (2008)

"Nail-Like Targets for Laser-Plasma Interaction Experiments"
J. Pasley, M. Wei, E. Shipton, S. Chen, T. Ma, F. N. Beg, N. Alexander, R. Stephens, A. G. MacPhee, D. Hey, S. Le Pape, P. Patel, A. Mackinnon, M. Key, D. Offermann, A. Link, E. Chowdhury, L. Van Woerkom, and R. R. Freeman; IEEE Transactions on Plasma Science, 36 1128 (2008)

"Use of GafChromic Film to Diagnose Laser Generated Proton Beams"
D.S. Hey, M.H. Key, A.J. Mackinnon, A.G. MacPhee, P.K. Patel, R.R. Freeman, L.D. Van Woerkom and C.M. Castaneda; Review of Scientific Instruments, 79 053501 (2008)

"Space and time resolved measurements of the heating of solids to ten million Kelvin by a petawatt laser"
M. Nakatsutsumi, J.R. Davies, R. Kodama, J.S. Green, K.L. Lancaster, K.U. Akli, F.N. Beg, S.N. Chen, D. Clark, R.R. Freeman, C.D. Gregory, H. Habara, R. Heathcote, D.S. Hey, K. Highbarger, P. Jaaninmagi, M.H. Key, K. Krushelnick, T. Ma, A. MacPhee, A. J. MacKinnon, H. Nakamura, R.B. Stephens, M. Storm, M. Tampo, W. Theobald, L. Van Woerkom, R.L. Weber, M.S. Wei, N.C. Woolsey, and P.A. Norreys; New Journal of Physics, 10 043046 (2008)

"Laser heating of solid matter by light-pressure-driven shocks at ultra-relativistic intensities"
K. U. Akli, S. B. Hansen, A. J. Kemp, R. R. Freeman, F. N. Beg, D. C. Clark, S. Chen, D. Hey, S. Hatchett, K. Highbarger, E. Giraldez, J. Green, G. Gregori, K. Lancaster, T. Ma, A. J. MacKinnon, P. Norreys, N. Patel, P. K. Patel, C. Shearer, R. B. Stephens, C. Stoeckl, M. Storm, W. Theobald, L. Van Woerkom, R. Weber, and M. H. Key; Physical Review Letters, 100 165002 (2008)

"Fast Electron Generation In Cones With Ultra-Intense Laser Pulses"
L. Van Woerkom, K.U. Akli, T. Bartal, F.N. Beg, S. Chawla, C.D. Chen, E. Chowdhury, R.R. Freeman, D. Hey, M.H. Key, J.A. King, A. Link, T. Ma, A.J. MacKinnon, A.G. MacPhee, D. Offermann, V. Ovchinnikov, P.K Patel, D.W. Schumacher, R.B. Stephens, Y.Y. Tsui; Physics of Plasmas, 15 056304 (2008)

"Effect of Laser Intensity on Fast-Electron-Beam Divergence in Solid-Density Plasmas"
Green, J. S., V. M. Ovchinnikov, R. G. Evans, K. U. Akli, H. Azechi, F. N. Beg, C. Bellei, R. R. Freeman, H. Habara, R. Heathcote, M. H. Key, J. A. King, K. L. Lancaster, N. C. Lopes, T. Ma, A. J. MacKinnon, K. Markey, A. McPhee, Z. Najmudin, P. Nilson, R. Onofrei, R. Stephens, K. Takeda, K. A. Tanaka, W. Theobald, T. Tanimoto, J. Waugh, L. Van Woerkom, N. C. Woolsey, M. Zepf, J. R. Davies and P. A. Norreys; Physical Review Letters, 100 015003 (2008)

"Absolute calibration of image plates for electrons at energy between 100 keV and 4 MeV"
H. Chen, N.L. Back, T. Bartal, F.N. Beg, D.C. Eder, A.J. Link, A.G. MacPhee, Y. Ping, P.M. Song, A. Throop, and L. Van Woerkom; Review of Scientific Instruments, 79 033301 (2008)

"The Transport of Relativistic, Laser-Produced Electrons in Matter"
Batani, D., R.R. Freeman, S. Baton, , Part I pg 265, Part II pg 295, In Progress in Ultrafast Intense Laser Science III, Ed. K. Yamanouchi, S.L. Chin, P. Agostini, G. Ferrante,  Springer Series in Chemical Physics, Springer Verlag, Berlin ISBN 978-3-540-73793-3 (2008)


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2007

"Surface heating of wire plasmas using laser irradiated cone geometries"
J.S. Green, K.L. Lancaster, K.U. Akli, C.D. Gregory, F.N. Beg, S.N. Chen, D. Clark, R.R. Freeman, S. Hawkes, C. Hernandez-Gomez, H. Habara, R. Heathcote, D.S. Hey, K. Highbarger, M.H. Key, R. Kodama, K. Krushelnick, I. Musgrave, H. Nakamura, M. Nakatsutsumi, N. Patel, R. Stephens, M. Storm, M. Tampo, W. Theobald, L. Van Woerkom, R.L. Weber, M.S. Wei, N.C. Woolsey, and P.A. Norreys; Nature Physics, 3 853 (2007)

"A wide angle crystal spectrometer for angularly and spectrally resolved x-ray scattering experiments"
E. García Saiz, F.Y. Khattak, G. Gregori, S. Bandyopadhyay, R. J. Clarke, B. Fell, R. R. Freeman, J. Jeffries, D. Jung, M.M. Notley , R.L. Weber, L. Van Woerkom and D. Riley; Review of Scientific Instruments, 78 095101 (2007)

"Experimental observations of transport of picosecond laser generated electrons in a nail-like target"
J. Pasley, M. Wei, E. Shipton, S. Chen, T. Ma, F. N. Beg, N. Alexander, R. Stephens, A. MacPhee, D. Hey, S. Le Pape, P. Patel, A. MacKinnon, M. Key, D. Offermann, A. Link, E. Chowdhury, L. Van Woerkom, R. Freeman; Physics of Plasmas, 14 120701 (2007)

"Anomaly in photoelectron angular distributions"
J.T. Zhang, L.D. Van Woerkom, D.S. Guo, R.R. Freeman; Phys. Rev. A, 76 015401 (2007)


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2006

"Development of an in situ peak intensity measurement method for ultra intense single shot laser-plasma experiments at the Sandia Z petawatt facility"
A. Link, E. Chowdhury, J. Morrison, V. Ovchinnikov, D. Offermann, L. Van Woerkom, R. Freeman, J. Pasley, E. Shipton, F. Beg, P. Rambo, J. Schwarz, M. Geissel, A. Edens, J. Porter; Review of Scientific Instruments, 77 10E723 (2006)

"Overview of recent progress in US fast ignition research"
R.R. Freeman, K. Akli, F. Beg, R. Betti, S. Chen, D.J. Clark, P.M. Gu, G. Gregori, S.P. Hatchett, D. Hey, K. Highbarger, J.M. Hill, N. Izumi, M. Key, J.A. King, J.A. Koch, B. Lasinki, B. Langdon, A.J. MacKinnon, D. Meyerhofer, N. Patel, P. Patel, J. Pasley, H.S. Park, C. Ren, R.A. Snavely, R.B. Stephens, C. Stoeckl, M. Tabak, R. Town, L. Van Woerkom, R. Weber, S.C. Wilks and B.B. Zhang; Journal de Physique IV, 133 95-100 (2006)


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