Cameron Guy Robinson Geddes

1 Cyclotron Rd MS 71-259
Berkeley CA 94720

telephone: 510-495-2923

Staff Scientist, BELLA center at LBNL.


Cameron Geddes obtained a B.A. degree in physics from Swarthmore College in 1997, and received the American Physical Society Apker Award for the outstanding undergraduate thesis that year for work on equilibria of Spheromak plasmas. From 1997 through 1999 he was a physicist at Lawrence Livermore National Laboratory and from 1999-2000 at Polymath Research working in the laser plasma interactions program.

He received the Ph.D. in 2005 (following the M.A. in 2003) from the University of California Berkeley, where he was supported by the Hertz fellowship and the National Defense Science & Engineering Fellowship. His thesis comprised experimental development and particle in cell simulations of the first plasma guiding of a relativistically intense laser pulse, and the resultant production of a high quality electron beam for the first time from a high gradient laser wakefield accelerator. He received the Hertz foundation thesis prize in 2005, as well as the American Physical Society Rosenbluth Award in 2006, for the outstanding doctoral dissertation.

He joined in the BELLA center (then LOASIS) of Lawrence Berkeley National Laboratory in 2000 for his Ph.D. research and is presently a staff scientist in the group. He has twice received the LBNL outstanding performance award, once for his thesis research, and again for experiments on long scale guiding and GeV laser acceleration in capillary waveguides.

He is presently pursuing research on laser acceleration and high energy density matter, with principal foci on controlled guiding of intense laser pulses in plasmas and controlled injection of particles into laser wakefield accelerators. These projects are directed towards stabilizing the beams produced in laser accelerators, building on our recent demonstration of low energy spread beams to produce reliable high quality next generation accelerators. Recent experiments have demonstrated controlled injection of electrons into the laser accelerator structure by using a tapered plasma density or 'downramp', resulting in reproducibile bunches with very low absolute momentum spread. Other experiments are investigating injection using counter-propagating laser pulses (see for instance Esarey, PRL v.79 no.14 pp.2682-2685). Experiments on controlled guiding are being continued to stabilize laser propagation and hence generate a repeatable accelerating structure. Recent experiments on long scale length guiding in capillary channels have accelerated electrons to GeV energies in 3 cm. Together, control of accelerating structure and injection offer a path to reproducible high quality electron bunches.

Particle in cell simulations are conducted in parallel with experiments to guide and assist in understanding the experiments, as well as to further understanding of the importance of numerical parameters to simulation results. These simulations were supported by an INCITE grant from the Department of Energy for 2006 and continued large-scale allocations on NERSC, allowing realistic modeling in two and three dimensions to optimize laser accelerators.

His general research interests include intense laser interactions with plasmas for laser driven advanced particle accelerators and radiation sources as well as fusion. Other interests include plasma simulations, nonlinear optics, magnetized plasmas, gas dynamics and nozzle flows.

Further information is available at the BELLA center website. A CV is also available. Listed below are selected papers, selected popular articles and news, dissertations and other work, invited talks, and other papers.

Selected Papers and Proceedings

G. R. Plateau, C. G. R. Geddes, D. B. Thorn, M. Chen, C. Benedetti, E. Esarey, A.J. Gonsalves, N.H. Matlis, K. Nakamura, C.B. Schroeder, S. Shiraishi, T. Sokollik, J. van Tilborg, Cs. Toth, S. Trotsenko, T.S. Kim, M. Battaglia, Th. Stoehlker, and W. P. Leemans, "Low-emittance electron bunches from a laser-plasma accelerator measured using single-shot X-ray spectroscopy," PRL 109, 064802 (2012). [Plateau, Geddes et al Low Emittance Bunches Measured with X-ray Spectroscopy PRL2012.pdf]. Also press release. and a related SLAC Symmetry article.

A. J. Gonsalves, K. Nakamura, C. Lin, D. Panasenko, S. Shiraishi, T. Sokollik, C. Benedetti, C. B. Schroeder, C. G. R. Geddes, J. van Tilborg, J. Osterhoff, E. Esarey, C. Toth , W. P. Leemans, "Tunable laser plasma accelerator based on longitudinal density tailoring," Nature Physics 7, 862 (2011). LBNL-5010E. [Gonsalves, Geddes etal Tunable Laser plasma accelerator based on longitudinal density tailoring NaturePhyics2011.pdf]. Also press release.

J.-L. Vay, C. G. R. Geddes, E. Cormier-Michel, and D. P. Grote, "Effects of hyperbolic rotation in Minkowski space on the modeling of plasma accelerators in a Lorentz boosted frame," Phys. Plasmas Letter 18, 030701 (2011). [Vay Geddes etal Minkowski rotation in LWFA simulation PoP2011.pdf]. Included in Virtual Journal of Ultrafast Science V. 10. Also LBNL and CRD press releases.

C.G.R. Geddes, E. Cormier-Michel, E.H. Esarey, C.B. Schroeder, J-L. Vay, W.P. Leemans, and the LOASIS team, LBNL; D.L. Bruhwiler, J.R. Cary, B. Cowan, M. Durant, P. Hamill, P. Messmer, P. Mullowney, C. Nieter, K. Paul, S. Shasharina, S. Veitzer, and the VORPAL development team, Tech-X; G. Weber, O. Rubel, D. Ushizima, Prabhat, and E.W. Bethel, VACET; and J. Wu, SciDAC Scientific Data Management Center, "Laser Plasma Particle Accelerators: Large Fields for Smaller Facility Sources," SciDAC Review 13, pp. 13 (2009). LBNL-2299E.[Geddes Laser accelerator simulations SciDAC Review 2009.pdf].

C.G.R. Geddes, K. Nakamura, G.R. Plateau, Cs. Toth, E. Cormier-Michel, E. Esarey, C.B. Schroeder, J.R. Cary, and W.P. Leemans, "Stable low momentum spread electron bunches from plasma density gradient injection," PRL V 100, 215004 (2008). LBNL-1232E [geddes plasma downramp injection prl 2008.pdf], also included in Virtual Journal of Ultrafast Science V. 6..

C.G.R. Geddes, D.L. Bruhwiler, J.R. Cary, E.H. Esarey, A.J. Gonsalves, C. Lin, E. Cormier-Michel, N.H. Matlis, K. Nakamura, M.S. Bakeman, D. Panasenko, G.R. Plateau, C.B. Schroeder, Cs. Toth, W.P. Leemans, "Development of high gradient laser wakefield accelerators towards nuclear detection applications at LBNL," Proc. CAARI, p. 666 (2008). LBNL-2279E. [geddes lwfa gamma source caari 2008.pdf]

C.G.R. Geddes, D.L. Bruhwiler, J.R. Cary, W.B. Mori, J-L. Vay, S.F. Martins, T. Katsouleas, E. Cormier-Michel, W.M. Fawley, C. Huang, X. Wang, B. Cowan, V.K. Decyk, E. Esarey, R.A. Fonseca, W. Lu, P. Messmer, P. Mullowney, K. Nakamura, K. Paul, G.R. Plateau, C.B. Schroeder, L.O. Silva, Cs. Toth, F.S. Tsung, M. Tzoufras, T. Antonsen, J. Vieira and W.P. Leemans, 'Computational studies and optimization of wakefield accelerators,' J. Phys. Conf. Series V 125 pp. 12002/1-11 (2008).LBNL-2245E. [Geddes wakefield accelerator simulation SciDAC2008.pdf]

E. Cormier-Michel, B.A. Shadwick, C.G.R. Geddes, E. Esarey, C.B. Schroeder, and W.P. Leemans , "Unphysical kinetic effects in laser wakefield accelerators modeled with particle-in-cell codes," Phys. Rev. E. V 78, 016404 (2008). LBNL-63071. [Michel, Geddes Kinetic effects in PIC PRE 2008.pdf]

K. Nakamura, B. Nagler, Cs. Toth, C. G. R. Geddes, C. B. Schroeder, E. Esarey, W. P. Leemans, A.J. Gonsalves, S.M. Hooker, "GeV electron beams from a centimeter-scale channel guided laser wakefield accelerator", Phys. Plasmas v 14, pp. 056708/1-8 (2007). LBNL-63078. [Nakamura, Geddes gev pop 2007.pdf]

W.P. Leemans, B. Nagler, A.J. Gonsalves, Cs. Toth, K. Nakamura,3, C.G.R. Geddes, E. Esarey, C.B. Schroeder, S.M. Hooker, "GeV electron beams from a centimetre-scale accelerator," Nature Physics, V 2, pp. 696-9 (2006). LBNL-60105. [leemans, geddes GeV capillary.pdf]

J. van Tilborg, C.B. Schroeder, C.V. Filip, Cs. Toth, C.G.R. Geddes, G. Fubiani, R. Huber, R.A. Kaindl, E. Esarey, W.P. Leemans. "Temporal characterization of femtosecond laser-plasma-accelerated electron bunches using terahertz radiation". Phys. Rev. Lett., V 96, no. 1, pp. 014801/1-4 (2006). LBNL-58351. [vanTilborg,Geddes THz PRL 2006.pdf ]

C.G.R. Geddes, Cs. Toth, J. van Tilborg, E. Esarey, C.B. Schroeder, J. Cary , W.P. Leemans, "Guiding of Relativistic Laser Pulses by Preformed Plasma Channels," Phys. Rev. Lett., V 95, no. 14, pp. 145002/1-4 (2005). LBNL-57058.[ Geddes guiding PRL2005.pdf ]

W.P. Leemans, E. Esarey, J. van Tilborg, P.A. Michel, C.B. Schroeder, C. Toth, C.G.R. Geddes, B.A. Shadwick, "Radiation from Laser Accelerated Electron Bunches: Coherent Terahertz and Femtosecond X-Rays," IEEE Trans. Plasma Sci., vol. 33, no. 1, pp. 8-22 (2005). LBNL-56584. [ Leemans, Geddes radiation TPS2005.pdf ]

C.G.R. Geddes, Cs. Toth, J. van Tilborg, E. Esarey, C.B. Schroeder, D. Bruhwiler, C. Nieter, J. Cary, W.P. Leemans, "Production of high quality electron bunches by dephasing and beam loading in channeled and unchanneled laser plasma accelerators," Physics of Plasmas, V 12, pp. 056709/1-10 (2005). LBNL-57062. [ Geddes dephasing PoP2005.pdf ]

C.G.R. Geddes, Cs. Toth, J. van Tilborg, E. Esarey, C.B. Schroeder, D. Bruhwiler, C. Nieter, J. Cary, W.P. Leemans, "High-quality electron beams from a laser wakefield accelerator using plasma-channel guiding," Nature, V 438, pp. 538-41 (2004). LBNL-55732. [ Geddes Guided Accel Nature 2004.pdf ], see also news and views summary by T. Katsouleas presenting a physics overview: [ Katsouleas wake summary Nature 2004.pdf]

C.G.R. Geddes, R.K. Kirkwood, S.H.Glenzer, K.G. Estabrook, C. Joshi, K.B. Wharton, "Observation of ion wave decay products of Langmuir waves generated by stimulated Raman scattering in ignition scale plasmas," Physics of Plasmas, V 10, no. 8, pp.3422-25 (2003). [ Geddes LDI PoP 2003.pdf ]

W.P.Leemans, J.van Tilborg, J. Faure, C.G.R. Geddes, Cs. Toth, C.B. Schroeder, E. Esarey, and G. Fubiani, "Observation of terahertz emission from a laser-plasma accelerated electron bunch crossing a plasma-vacuum boundary," Physical Review Letters, V 91, no. 7, pp.074802/1-4 (2003). LBNL-52554. [ Leemans,Geddes THz PRL 2003.pdf ]

W.P. Leemans, P. Catravas, E. Esarey, C.G.R. Geddes, C. Toth, R. Trines, C.B. Schroeder, B.A. Shadwick, J. van Tilborg, J. Faure, "Electron-yield enhancement in a Laser-Wakefield accelerator driven by asymmetric laser pulses," Physical Review Letters, V 89, no. 17, pp.174802/1-4 (2002). LBNL-49856. [ Leemans, Geddes Pulseshapes PRL 2002.pdf ]

W.P. Leemans, D. Rodgers, P.E. Catravas, G. Fubiani, C.G.R. Geddes, E. Esarey, B.A. Shadwick, G.J.H. Brussaard, J. van Tilborg, S. Chattopadhyay, J.S. Wurtele, L. Archambault, M.R. Dickinson, S. DiMaggio, R. Short, K.L. Barat, R. Donahue, J. Floyd, A. Smith, E. Wong, "Laser wakefield accelerator experiments at LBNL," AIP Conference Proceedings, no.569- Proc. Advanced Accelerator Concepts Workshop, pp. 136-45 (2001). [ Leemans, Geddes wakefield AAC 2000.pdf ]

S. H. Glenzer, L. M. Divol, R. L. Berger, C.G.R. Geddes, R. K. Kirkwood, J. D. Moody, E. A. Williams, and P. E. Young "Thomson scattering measurements of saturated ion waves in laser fusion plasmas," Physical Review Letters, V 86, no. 12, pp. 2565-8 (2001). [ Glenzer,Geddes TS ion PRL 2001.pdf ]

C.G.R. Geddes, T.W. Kornack, M.R. Brown, "Scaling studies of spheromak formation and equilibrium," Physics of Plasmas, V 5, no. 4, pp. 1027-34 (1998). [ Geddes,Brown Spheromak PoP 1998.pdf ]

C.G.R. Geddes, A.U. Tran, G. Chong, L.A. Molter, M. Dutta, "Nonlinear Optical Slab Waveguide Devices in AlGaAs/GaAs," Proceedings of the Conference on Lasers and Electro Optics, Baltimore MD, (IEEE Cat. No. 95CH35800). Opt. Soc. America. pp.100-1 (1995).

State-of-the-Art Beams From Table-Top Accelerators, Berkeley Lab News Center, October 2012 press release, and a related SLAC Symmetry article.

Simulating Tomorrow's Accelerators at Near the Speed of Light, Today at Berkeley Lab March 2011 [Boost simulations] , also featured in [Computing sciences news] and NERSC SC10 conference [video].

K. Tuttle, "Crashing the size barrier," SLAC Symmetry magazine October 2009 [Crashing the Size Barrier symmetry.pdf]

2009 simulation research highlights at NERSC: [ science highlights.], and [gallery ]

W.P. Leemans and E.H. Esarey, "Laser-driven plasma-wave electron accelerators," Physics Today 2009.

"Simulations explain high energy density experiments", LLNL S&T review Jen/Feb 2009

NERSC and CRD Help Decipher Science from Compact Accelerator Simulations," CRD Newsletter 2009

W.P. Leemans, C.G.R. Geddes, and E. Esarey, "Light Accelerators", SPIE's oe magazine 5, 22-24 (2005).

T. Katsouleas "Electrons hang ten on laser wake," physics overview of Nature 2004 results, Nature 2004 [ Katsouleas wake summary Nature 2004.pdf]

Dissertation, Other Work

C.G.R. Geddes, Ph.D. Dissertation, 2005, University of California Berkeley, "Plasma Channel Guided Laser Wakefield Accelerator" [Geddes dissertation - Plasma channel guided laser wakefield accelerator.pdf]

C.G.R. Geddes, BA Thesis, 1997, Swarthmore College, "Spheromak Equilibriun Studies on SSX" [Geddes Spheromak BA Thesis 1997.pdf]

Invited Talks

C.G.R. Geddes, "Nuclear detection & characterization with laser-plasma accelerator driven quasi-monoenergetic photon sources, Conference on Applications of Accelerators in Research and Industry (CAARI), San Antonio TX, 2014.

C.G.R. Geddes, "Laser plasma acceleration of low emittance, high energy bunches, and applications," High Energy Density Sciences conference, Yokohama Japan, 2014.

C.G.R. Geddes, "Laser-plasma accelerator development & roadmap for high flux Thomson photon sources," Monoenergetic Photon Source Workshop, Washington DC, 2014.

C.G.R. Geddes, "Compact quasi-monoenergetic gamma ray sources based on Laser Plasma Accelerators," Mini-workshop on Advanced Accelerator and Laser Technologies for New Generation Light Sources, KEK, Tsukuba Japan, 2014.

C.G.R. Geddes, "Compact quasi-monoenergetic gamma ray sources based on Laser Plasma Accelerators," Mini-workshop on Advanced Accelerator and Laser Technologies for New Generation Light Sources, KEK, Tsukuba Japan, 2014.

C.G.R. Geddes, "Laser-plasma accelerators and MeV photon sources," Asian Summer School and Symposium, Kansai Photon Research Center, Nara Japan, 2013.

C.G.R. Geddes, "Laser-plasma accelerators and MeV photon sources," Directed Energy Professional Society, Santa Fe NM, 2013 (Plenary).

C.G.R. Geddes, "Laser-plasma wakefield accelerators for active interrogation," Active Interrogation Workshop, Idaho Falls, 2010.

C.G.R. Geddes, "Computing methodologies: laser-plasma wakefield particle acceleration," Fusion Simulation Program planning workshop, Boulder CO, 2010.

C.G.R. Geddes, "Multi GeV and injection-controlled laser-plasma accelerator simulations," ICAP, San Franciso, 2009. []

C.G.R. Geddes, "Multi-GeV laser-plasma accelerator designs for collider applications," Siemann memorial symposium and ICFA mini-workshop on novel concepts for linear accelerators and colliders 2009.[]

C.G.R. Geddes, "Simulating 10 GeV, efficient laser plasma wakefield accelerators at LBNL," Laser Plasma Accelerator Workshop, Kardamili Greece, June 2009 []

C.G.R. Geddes, "Laser wakefield accelerator physics and development," HEDSA meeting at APS DPP, Dallas TX, November 2008 []

C.G.R. Geddes, "Laser Acceleration: Guiding and Injection," Advanced Accelerator Concepts Workshop, Santa Cruz CA, July 2008 []

C.G.R. Geddes, "Computational Studies and Optimization of wakefield accelerators," SciDAC Conference, Seattle WA, July 2008 []

C.G.R. Geddes, "Large scale particle simulations of laser wakefield experiments," Laser Plasma Accelerator Workshop, Azores, June 2007 []

C.G.R. Geddes, “Developing high energy, stable laser wakefield accelerators: particle simulations and experiments," Division of plasma physics, 2006 (Rosenbluth award talk).

C.G.R. Geddes, "Wakefield Accelerators for Ultrafast Particle and Radiation Sources Using Ultrashort-Pulse Lasers," Anomalous Absorption Conference, Jackson WY, June 2006[]

C.G.R. Geddes, "Laser Guiding at Relativistic Intensities and Wakefield Particle Acceleration in Plasma Channels," Conference on Lasers and Electro Optics, Baltimore MD, May 2005. []

C.G.R. Geddes, Particle Accelerator Conference, Knoxville TN, May 2005. []

C.G.R. Geddes, "High quality electron bunches from a plasma channel guided laser wakefield accelerator", Japan-US Workshop on High Irradiance Lasers, Osaka Japan, December 2004. []

C.G.R. Geddes, "High quality electron bunches from a plasma channel guided laser wakefield accelerator," APS Division of Plasma Physics, Savannah GA, November 2004. []

C.G.R. Geddes, "Nuclear activation experiments using laser wakefield accelerators," Workshop on Targetry and Target Chemistry (WTTC), Madison WI, August 2004. []

C.G.R. Geddes, "Laser Guiding At Relativistic Intensities and Wake Field Particle Acceleration in Plasma Channels," Proc. Advanced Accelerator Concepts Workshop, June 2004. []

C.G.R. Geddes, "Spheromak Equilibrium Studies on the Swarthmore Spheromak Experiment," APS Joint Meeting, Columbus OH, April 1998. []

Further Papers and Proceedings

L.-L. Yu, E. Esarey, C. B. Schroeder, J.-L. Vay, C. Benedetti, C. G. R. Geddes, M. Chen, and W. P. Leemans, "Two-Color Laser-Ionization Injection ," Phys. Rev. Lett. 112, 125001 (2014) .

S.G. Rykovanov, C.G.R. Geddes, J.-L. Vay, C.B. Schroeder, E. Esarey, W.P. Leemans, "Quasi-monoenergetic femtosecond photon sources from Thomson Scattering using laser plasma accelerators and plasma channels," submitted to J. Phys B (2014); arXiv:1406.1832..

M. Chen, E. Esarey, C. G. R. Geddes, E. Cormier-Michel, C. B. Schroeder, S. S. Bulanov, C. Benedetti, L. L. Yu, S. Rykovanov, D. L. Bruhwiler, and W. P. Leemans, "Electron injection and emittance control by transverse colliding pulses in a laser-plasma accelerator," Phys. Rev. ST Accel. Beams 17, 051303 (2014).

O. Ruebel, C.G.R. Geddes, M. Chen, E. Cormier-Michel, E.W. Bethel, "Feature-based Analysis of Plasma-based Particle Acceleration Data," IEEE Transactions on Visualization and Computer Graphics V 20, #2, pp 196 (2014). LBNL-6333E.

C.G.R. Geddes, J.-L. Vay, C.B. Schroeder, E. Esarey, W. P. Leemans, "Computational accelerator science needs towards laser-plasma accelerators for future colliders," Snowmass Study proceedings, 2013.

J.-L.Vay, C. G. R. Geddes, A. Koniges, A. Friedman, D. P. Grote, D. L. Bruhwiler, "White Paper on DOE-HEP Accelerator Modeling Science Activities," Snowmass Study proceedings, 2013 Snowmass Study proceedings, 2013.

P. Spentzouris, E. Cormier-Michel, C. Joshi, J. Amundson, W. An, D.L. Bruhwiler, J.R. Cary, B. Cowan, V.K. Decyk, E. Esarey, R.A. Fonseca, A. Friedman, C.G.R. Geddes, D.P. Grote, I. Kourbanis, W.P. Leemans, W. Lu, W.B. Mori, C. Ng, Ji Qiang, T. Roberts, R.D. Ryne, C.B. Schroeder, L.O. Silva, F.S. Tsung, J.-L. Vay, J. Vieira, "Snowmass 2013 Computing Frontier: Accelerator Science," Snowmass Study proceedings, 2013.

S. Shiraishiy , T. Sokollikz , C. Benedetti, A. J. Gonsalves, N. H. Matlis, K. Nakamura, B. H. Shaw, S. Steinke, J. van Tilborg, C. G. R. Geddes, C. B. Schroeder, Cs. Tęoth, E. Esarey, and W. P. Leemans, "Experimental progress on Staged Laser-Plasma Acceleration," Proceedings of NA-PAC 2013.

L.-L. Yu, E. Esarey, C. B. Schroeder, J.-L. Vay, C. Benedetti, C. G. R. Geddes, M. Chen, and W. P. Leemans, "Low transverse emittance electron bunches from two-color laser-ionization injection, Proceedings of the SPIE - The International Society for Optical Engineering, V. 8779 pp. 877908(9 pp.) (2013).

S.V. Bulanov, E. Echkina,, T. Esirkepov, I. Inovenkov, M. Kando, J.K. Koga,F. Pegoraro, G. Korn, S.S. Bulanov, C.G.R. Geddes, C.B. Schroeder, E. Esarey, W.P. Leemans, "Laser-driven ion acceleration in the radiation pressure dominated regime," Conference on Lasers and Electro-Optics Pacific Rim DOI: 10.1109/CLEOPR.2013.6600071 (2 pp.) (2013)

S. Shiraishi, C. Benedetti, A. J. Gonsalves, K. Nakamura, B. H. Shaw, T. Sokollik, J. van Tilborg, C. G. R. Geddes, C. B. Schroeder, Cs. Toth, E. Esarey, and W. P. Leemans, "Laser red shifting based characterization of wakefield excitation in a laser-plasma accelerator," Phys. Plasmas 20, 063103 (2013). view on PoP website

B. M. Cowan, David L. Bruhwiler†, John R. Cary, and Estelle Cormier-Michel, Cameron G. R. Geddes , "Generalized algorithm for control of numerical dispersion in explicit time-domain electromagnetic simulations," Phys. Rev. ST Accel. Beams 16, 041303 (2013).

M. Chen, E. Cormier-Michel, C. G. R. Geddes, David L. Bruhwiler, L. L. Yu, E. Esarey, C. B. Schroeder, and W. P. Leemans, "Numerical modeling of laser tunneling ionization in explicit particle-in-cell codes," Journal of Computational Physics V 236, Pages 220-228, 2013.

M. Chen, E. Esarey, C. G. R. Geddes, C. B. Schroeder, G. R. Plateau, S. S. Bulanov, S. Rykovanov, and W. P. Leemans, "Modeling classical and quantum radiation from laser-plasma accelerators," Phys. Rev. Special Topics -AB, V. 16, 030701 (2013).[].

N. A. Bobrova, P. V. Sasorov, C. Benedetti, S. S. Bulanov, C. G. R. Geddes, C. B. Schroeder, E. Esarey, and W. P. Leemans, "Laser-heater assisted plasma channel formation in capillary discharge waveguides," Phys. Plasmas 20, 020703 (2013).[].

S. V. Bulanov, T. Zh. Esirkepov, M. Kando, F. Pegoraro, S. S. Bulanov, C. G. R. Geddes, C. B. Schroeder, E. Esarey, and W. P. Leemans, "Ion acceleration from thin foil and extended plasma targets by slow electromagnetic wave and related ion-ion beam instability," Phys. Plasmas 19, 103105 (2012).[].

S. G. Rykovanov, M. Chen, C. G. R. Geddes, C. B. Schroeder, E. Esarey, and W. P. Leemans, "Virtual detector of synchrotron radiation (VDSR) - A C++ parallel code for particle tracking and radiation calculation," AIP Conf. Proc., Advanced Accelerator Concepts Workshop, 1507, 399 (2012).[].

N. H. Matlis, C. G. R. Geddes, G. R. Plateau, E. Esarey, C. Schroeder, D. Bruhwiler, E. Cormier-Michel, M. Chen, L. Yu, and W. P. Leemans, "Controlling electron injection in laser plasma accelerators using multiple pulses," AIP Conf. Proc., Advanced Accelerator Concepts Workshop, 1507, 717 (2012).[].

M. Chen, C. G. R. Geddes, E. Esarey, C. B. Schroeder, S. S. Bulanov, C. Benedetti, L. L. Yu, S. Rykovanov, W. P. Leemans, E. Cormier-Michel, and David L. Bruhwiler, "Using transverse colliding-pulse injection to obtain electron beams with small emittance in a laser-plasma accelerator," AIP Conf. Proc., Advanced Accelerator Concepts Workshop, 1507, 262 (2012).[].

S. Shiraishi, T. Sokollik, C. Benedetti, A. J. Gonsalves, K. Nakamura, B. H. Shaw, J. van Tilborg, C. G. R. Geddes, C. B. Schroeder, Cs. Toth, E. Esarey, and W. P. Leemans, "Recent progress on staging laser-plasma accelerators," AIP Conf. Proc., Advanced Accelerator Concepts Workshop, 1507, 321 (2012).[].

Estelle Cormier-Michel, David L. Bruhwiler, Eric J. Hallman, Benjamin M. Cowan, John R. Cary, Cameron G. R. Geddes, Jean-Luc Vay, Eric Esarey, Carl B. Schroeder, and Wim P. Leemans, "Low noise particle-in-cell simulations of 10 GeV laser-plasma accelerator stages," AIP Conf. Proc., Advanced Accelerator Concepts Workshop, 1507, 369 (2012).[].

M. Chen, E. Cormier-Michel, C. G. R. Geddes, David L. Bruhwiler, L. L. Yu, E. Esarey, C. B. Schroeder, and W. P. Leemans, "Numerical simulation of laser tunneling ionization in explicit particle-in-cell codes," AIP Conf. Proc., Advanced Accelerator Concepts Workshop, 1507, 911 (2012).[].

A. J. Gonsalves, K. Nakamura, C. Lin, D. Panasenko, S. Shiraishi, T. Sokollik, C. Benedetti, C. B. Schroeder, C. G. R. Geddes, J. van Tilborg, J. Osterhoff, E. Esarey, Cs. Toth, and W. P. Leemans, "Injection and staging for laser plasma accelerators," AIP Conf. Proc., Advanced Accelerator Concepts Workshop, 1507, 67 (2012).[].

C. G. R. Geddes, G. R. Plateau, D. B. Thorn, M. Chen, C. Benedetti, E. Esarey, A. J. Gonsalves, N. H. Matlis, K. Nakamura, S. Rykovanov, C. B. Schroeder, S. Shiraishi, T. Sokollik, J. van Tilborg, Cs. Toth, S. Trotsenko, T. S. Kim, M. Battaglia, Th. Stöhlker, and W. P. Leemans, "Low-emittance electron bunches from a laser-plasma accelerator measured using single-shot X-ray spectroscopy," AIP Conf. Proc., Advanced Accelerator Concepts Workshop, 1507, 278 (2012).[].

M. Chen, E. Esarey, C. B. Schroeder, C. G. R. Geddes, and W. P. Leemans, "Theory of ionization-induced trapping in laser-plasma accelerators," Phys. Plasmas 19, 033101 (2012).[ Chen, Geddes etal Theory of Ionization trapping PoP2012.pdf] (opyright (2011) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.)

Contributions to the ICFA/ICUIL report, edited by W.P. Leemans and W. Chou on "High Power Laser Technology For Accelerators," ICFA 2011. [http://www-bd.fnal.gov/icfabd/Newsletter56.pdf]

J.-L. Vay, C. G. R. Geddes, E. Esarey, C. B. Schroeder, W. P. Leemans, E. Cormier-Michel, and D. P. Grote, "Modeling of 10 GeV-1 TeV laser-plasma accelerators using Lorentz boosted simulations," Phys. Plasmas 18 , 123103 (2011) [Vay, Geddes etal boosted frame sim of 10GeV-1TeV PoP2011.pdf]. (Copyright (2011) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.)

J.-L. Vay, C. G. R. Geddes, E. Cormier-Michel, D. P. Grote, "Numerical methods for instability mitigation in the modeling of laser wakefield accelerators in a Lorentz-boosted frame," Journal of Computational Physics V 230 No. 15 pg 5908-5929 (2011). [vay, geddes et al Numerical methods boosted frame simulation JCP2011.pdf]

E. Cormier-Michel, E. Esarey,  C.G.R. Geddes, C.B. Schroeder, K. Paul, P.J. Mullowney, J.R. Cary, and W.P. Leemans, "Control of focusing fields in laser-plasma accelerators using higher-order modes," Phys. Rev. ST Accel. Beams 14, 031303 (2011). [Cormier-Michel, Geddes et al Focusing control HOM, PRSTAB2011.pdf]

M. Krishnan, K. Wilson-Elliott, C.G.R. Geddes, R.A. van Mourik, W.P. Leemans, H. Murphy and M. Clover, "An Electromagnetically Driven, Fast Opening and Closing Gas Jet Valve," PRSTAB 14, 033502 (2011). [Krishnan, Geddes et al electromagnetic valve, PRSTAB 2011]

B.M. Cowan, D.L. Bruhwiler, E. Cormier-Michel, E. Esarey, C.G.R. Geddes, P. Messmer, K.M. Paul, "Characteristics of an envelope model for laser plasma accelerator simulation", Journal of Computational Physics 230, 61 (2011). [Cowan, Geddes et al Envelope model JCP2011.pdf]

C.G.R. Geddes, M. Chen, E. Esarey, N.H. Matlis, D.E. Mittelberger, K. Nakamura, G.R.D. Plateau, C.B. Schroeder, C. Toth, D.L. Bruhwiler, J.R. Cary, E. Cormier-Michel, B.M. Cowan, W. Leemans, "Colliding Pulse Injection Control in a Laser-Plasma Accelerator," Proc. Particle Accel. Conf, MOP123 (2011). [geddes et al colliding pulse experiments PAC2011.pdf]

E. Cormier-Michel, D.L. Bruhwiler, B.M. Cowan, V.H. Ranjibar, M. Chen, E. Esarey, C.G.R. Geddes, W. Leemans, C.B. Schroeder, "Predictive Design and Interpretation of Colliding Pulse Injected Laser Wakefield Experiments," Proc. Particle Accel. Conf, MOP137 (2011). [cormier-michel geddes et al predictive design of colliding pulse experiments PAC2011.pdf]

C.B. Schroeder, C. Benedetti, E. Esarey, C.G.R. Geddes, W. Leemans, C. Toth, "Plasma Wake Excitation by Lasers or Particle Beams," Proc. Particle Accel. Conf, MOP083 (2011). [schroeder geddes et al Plasma Wake Excitation PAC2011.pdf]

A.J. Gonsalves, C.G.R. Geddes, C. Lin, K. Nakamura, J. Osterhoff, C.B. Schroeder, S. Shiraishi, T. Sokollik, C. Toth, E. Esarey, W. Leemans, "Accurate Alignment of Plasma Channels Based on Laser Centroid Oscillations," Proc. Particle Accel. Conf, MOP124 (2011). LBNL-4952E [gonsalves geddes et al channel alignment PAC2011.pdf]

M. Chen, E. Esarey, C.G.R. Geddes, W. Leemans, C.B. Schroeder, D.L. Bruhwiler, E. Cormier-Michel, "Ionization-Induced Trapping in Laser-Plasma Accelerators and Synchrotron Radiation from the Betatron Oscillation," Proc. Particle Accel. Conf, MOP159 (2011). [chen geddes et al ionization injection simulation PAC2011.pdf]

D. B. Thorn, C. G. R. Geddes, N. H. Matlis, G. R. Plateau, E. Esarey, M. Battagla, C. B. Schroeder, S. Shiraishi, Th. Stohlker, C, Toth, and W. P. Leemans, "Spectroscopy of betatron radiation emitted from laser-produced wakefield accelerated electrons," Rev. Sci. Inst. 81, 10E325 (2010). Also featured in November 2010 issue of Virtual Journal of Ultrafast Science. [Thorn Geddes et al Spectroscopy of Betatron RSI 2010.pdf]

W.B. Mori, W. An, V.K. Decyk, W. Lu, F.S. Tsung, R.A. Fonseca, S.F. Martins, J. Vieira, L.O. Silva, M. Chen, E. Esarey, C.G.R. Geddes, W.P. Leemans, C.B. Schroeder, J.-L. Vay, K. Amyx, D.L. Bruhwiler, J.R. Cary, E. Cormier-Michel, B. Cowan, P. Messmer, C. Huang, and T. Antonsen, "Dream beams: Extreme-scale computing enabling new accelerator technologies for the energy and intensity frontiers," Proceedings SciDAC 201, pp 261-276 (2010). [mori, geddes et al SciDAC 2010.pdf]

C. B. Schroeder, E. Esarey, C. Geddes, C. Benedetti, and W. P. Leemans, "Physics considerations for laser-plasma linear colliders," PRSTAB 13, 1010301 (2010) [Schroeder, Geddes etal LPLC considerations PRSTAB 2010.pdf]

C. G. R. Geddes, C. Clayton, W. Lu, and A. G. R. Thomas, "Summary Report of Working Group 1: Laser-Plasma Acceleration," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010). [Geddes etal WorkingGroup1summary AAC2010.pdf]

C.G.R. Geddes, E. Cormier-Michel, E. Esarey, C.B. Schroeder, P. Mullowney, K. Paul, J.R. Cary and W.P. Leemans, "Laser-PlasmaWakefield Acceleration with Higher Order Laser Modes," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010). [Geddes Cormier-Michel etal Shaped Laser Modes AAC2010.pdf]

M. Chen, E. Esarey, C.G.R. Geddes, C.B. Schroeder, and W.P. Leemans, “Electron Injection in Laser Plasma Accelerators by High-Order Field Ionization", In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010). [Chen Geddes etal Ionization Injection AAC2010.pdf]

W.P. Leemans, R. Duarte, E. Esarey, S. Fournier, C.G.R. Geddes, D. Lockhart, C.B. Schroeder, C. Toth, J.-L. Vay, "The BErkeley Lab Laser Accelerator (BELLA): A 10 GeV Laser Plasma Accelerator," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010) [Leemans Geddes etal BELLA AAC2010.pdf]

G. R. Plateau, C. G. R. Geddes, N. H. Matlis, E. Cormier-Michel, D. E. Mittelberger, K. Nakamura, C. B. Schroeder, E. Esarey, and W. P. Leemans, "Colliding Laser Pulses for Laser-Plasma Accelerator Injection Control," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010). LBNL-4958E [Plateau Geddes etal Colliding Pulse AAC2010.pdf]

G. R. Plateau, C. G. R. Geddes, D. B. Thorn, N. H. Matlis, D. E. Mittelberger, T. Stoehlker, M. Battaglia, T. S. Kim, K. Nakamura, E. Esarey, and W. P. Leemans, "X-ray Emission from Electron Betatron Motion in a Laser-Plasma Accelerator," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010). [LBNL-5007E] [Plateau Geddes etal Betatron AAC2010.pdf]

J.-L. Vay, C.G.R. Geddes, C. Benedetti, D.L. Bruhwiler, E. Cormier-Michel, B.M. Cowan, J.R. Cary and D. P. Grote, "Modeling laser wakefield accelerators in a Lorentz boosted frame," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010) [Vay Geddes etal Boosted Frame AAC2010.pdf]

E. Cormier-Michel , V. H. Ranjbar, D. L. Bruhwiler , M. Chen, C. G. R. Geddes, E. H. Esarey, C. B. Schroeder and W. P. Leemans, "Design and Interpretation of Colliding Pulse Injected Laser-Plasma Acceleration Experiments," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010). [Cormier-Michel Geddes etal Simulation design of colliding pulse expt AAC2010.pdf]

C. B. Schroeder, E. Esarey, C. Benedetti, Cs. Toth, C. G. R. Geddes, and W. P. Leemans, "Design Considerations for Plasma Accelerators Driven by Lasers or Particle Beams," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010). [Schroeder Geddes etal LPLC AAC2010.pdf]

J. Osterhoff, T. Sokollik, K. Nakamura, M. Bakeman, R. Weingartner, A. J. Gonsalves, S. Shiraishi, C. Lin, J. van Tilborg, C. G. R. Geddes, C. B. Schroeder, E. Esarey, Cs. Toth, S. De Santis, J. M. Byrd, F. Grüner, and W. P. Leemans, "Transport and Non-Invasive Position Detection of Electron Beams from Laser-Plasma Accelerators," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010). [LBNL-5006E] [Osterhoff Geddes etal Beam Transport AAC2010.pdf]

C. Benedetti, C. B. Schroeder, E. Esarey, C. G. R. Geddes, and W. P. Leemans, "Efficient Modeling of Laser-Plasma Accelerators with INF&RNO," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010). [Benedetti Geddes etal INFERNO AAC2010.pdf]

A. J. Gonsalves, K. Nakamura, C. Lin, J. Osterhoff, S. Shiraishi, C. B. Schroeder, C. G. R. Geddes, Cs. Toth, E. Esarey, and W. P. Leemans, "Plasma Channel Diagnostic Based on Laser Centroid Oscillations," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010). LBNL-5008E [Gonsalves Geddes etal Plasma Channel Diagnostic AAC2010.pdf]

S. Shiraishi, A. J. Gonsalves, C. Lin, K. Nakamura, J. Osterhoff, T. Sokollik, J. van Tilborg, C. G. R. Geddes, C. B. Schroeder, Cs. Toth, E. Esarey, and W. P. Leemans, "Wavefront Measurement for Laser-Guiding Diagnostic," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010). [Shiraishi Geddes etal Wavefront Sensor AAC2010.pdf]

N. H. Matlis, M. Bakeman, C. G. R. Geddes, T. Gonsalves, C. Lin, K. Nakamura, J. Osterhoff, G. R. Plateau, C. B. Schroeder, S. Shiraishi, T. Sokollik, J. van Tilborg, Cs. Toth, and W. P. Leemans, "Ultrafast Diagnostics for Electron Beams from Laser Plasma Accelerators," In Proceedings 14th Advanced Accelerator Concepts Workshop, Annapolis, MD (2010) [Matlis Geddes etal Ultrafast Diagnostics AAC2010.pdf]

E. Cormier-Michel, E. Esarey, C.G.R. Geddes, C.B. Schroeder, W.P. Leemans, D.L. Bruhwiler, B. Cowan, K. Paul, "Design Of 10 Gev Laserwakefield Accelerator Stages With Shaped Laser Modes," Proceedings of the 10th International Computational Accelerator Physics Conference, ICAP 2009, San Francisco. LBNL-2837E. [Cormier-Michel, geddes et al Shaped laser modes ICAP 2009.pdf]

J.-L. Vay, W. M. Fawley, C. G. Geddes, E. Cormier-Michel, D. P. Grote, "Novel methods for simulating relativistic systems using an optimal boosted frame," Proceedings of the 10th International Computational Accelerator Physics Conference, ICAP 2009, San Francisco. LBNL-2390E. [vay, geddes etal optimal boosted frame ICAP 2009.pdf]

J.-L. Vay, W. M. Fawley, C. G. Geddes, E. Cormier-Michel, D. P. Grote, "Speeding up simulations of relativistic systems using an optimal boosted frame," Proceedings of the DPF-2009 conference. LBNL-3053E. [vay, geddes etal speeding simulation with optimal lorentz frame DPF 2009.pdf]

G. R. Plateau, N. H. Matlis, C. G. R. Geddes, A. J. Gonsalves, S. Shiraishi, C. Lin, R. A. van Mourik, and W. P. Leemans, "Wavefront-sensor-based electron density measurements for laser-plasma accelerators," RSI 81, 033108 (2010). LBNL-3781E. [ plateau geddes etal, wavefront sensor electon density RSI 2010.pdf]

A. J. Gonsalves, K. Nakamura, C. Lin, J. Osterhoff, S. Shiraishi, C. B. Schroeder, C. G. R. Geddes, Cs. Toth, E. Esarey, and W. P. Leemans, "Plasma channel diagnostic based on laser centroid oscillations," Physics of Plasmas 2010. LBNL-3293E. [Gonsalves, Geddes etal Channel Properties Physics of Plasmas 2010.pdf or link to AIP version].

O. Ruebel, S. Ahearn, E.W. Bethel, M. Biggin, H. Childs, E. Cormier-Michel, A. DePace, M.B. Eisen, C.C. Fowlkes, C.G.R. Geddes, H. Hagen, B. Hamann M-Y Huang, S.V.E. Keranen, D.W. Knowles, C.L Luengo Hendriks, J. Malik, J. Meredith, . Messmer, Prabhat, D. Ushizima, G.H. Weber, K. Wu, "Coupling visualization and data analysis for knowledge discovery from multi-dimensional scientific data" Proc. International Conference on Computational Science (2010). LBNL-3669E. [Ruebel Geddes etal visualization ICCS 2010.pdf]

C.G.R. Geddes, E. Cormier-Michel, E. Esarey, C.B. Schroeder, W.P. Leemans, D.L. Bruhwiler, B. Cowan, C. Nieter, K. Paul, and J.R. Cary, "Scaled Simulation Design Of High Quality Laser Wakefield Accelerator Stages," Proceedings Particle Accel. Conf. 2009. LBNL-2356E. [Geddes etal, Scaled simulation of laser wakfield accelerators, PAC2009.pdf]

C. B. Schroeder, E. Esarey, Cs. Toth, C.G.R. Geddes, W. P. Leemans, "Laser-Plasma-Accelerator-Based gamma-gamma Colliders," Proceedings Particle Accel. Conf. 2009. LBNL-2280E. [Schroeder, Geddes etal, Laser Plasma Accelerator Gamma-Gamma collider PAC 2009.pdf]

J.-L. Vay, W. M. Fawley, C. G. R. Geddes, E. Cormier-Michel, D. P. Grote, "Application of the reduction of scale range in a Lorentz boosted frame to the numerical simulation of particle acceleration devices," Proceedings Particle Accel. Conf. 2009. LBNL-1976-E . [Vay, Geddes etal, Lorentz boosted simulation, PAC2009.pdf]

G. R. Plateau , N. H. Matlis, J. van Tilborg, C.G.R. Geddes, Cs. Toth, C. B. Schroeder and W. P. Leemans, "Optimization And Single-Shot Characterization Of Ultrashort Thz Pulses From A Laser Plasma Accelerator," Proceedings Particle Accel. Conf. 2009. LBNL-2500E. [Plateau, Geddes etal, THz optimization, PAC2009.pdf]

K. Nakamura, E. Esarey, C. G. R. Geddes, A. J. Gonsalves,W. P. Leemans, C. Lin, D. Panasenko, C.B. Schroeder, and C. Toth, "Experimental study of self-trapping in capillary discharge guided laser wakefield acceleration," Proceedings Particle Accel. Conf. 2009. LBNL-2345E. [Nakamura, Geddes etal, Self trapping in capillaries, PAC2009.pdf]

A.J. Gonsalves, E. Esarey, C.G.R. Geddes, W.P. Leemans, C. Lin, K. Nakamura, D. Panasenko, C. B. Schroeder, C. Toth, "Longitudinal Density Tailoring For The Enhancement Of Electron Beams In The Capillary-discharge Laser-guided Wakefield Accelerator," Proceedings Particle Accel. Conf. 2009. LBNL-2344E. [Gonsalves, Geddes etal, Longitudinal density tailoring in capillaries, PAC2009.pdf]

C. Huang, W. An, V.K. Decyk, W. Lu, W.B. Mori, F. S. Tsung, M. Tzoufras, S. Morshed, T. Antonsen, B. Feng, T Katsouleas, R.A. Fonseca, S.F. Martins, J. Vieira, L.O Silva, E. Esarey, C. G. R. Geddes, W. P. Leemans, E. Cormier-Michel, J.-L. Vay, D. L. Bruhwiler, B. Cowan, J. R.Cary, K. Paul "Recent results and future challenges for large scale Particle-In-Cell simulations of plasma-based accelerator concepts," In Journal of Physics Conference Series, Proceedings of SciDAC 2009. LBNL-2202E.[Huang, Geddes etal, Recent particle in cell sim. of plasma accelerators, JCP 2009.pdf]

J.-L. Vay, D. L. Bruhwiler, C. G. R. Geddes, W. M. Fawley, S. F. Martins, J. R. Cary, E. Cormier-Michel, B. Cowan, R. A. Fonseca, M. A. Furman, W. Lu, W. B. Mori, L. O. Silva "Simulating relativistic beam and plasma systems using an optimal boosting frame," In Journal of Physics Conference Series, Proceedings of SciDAC 2009. LBNL-2201E. [Vay, Geddes etal, Boosted Frame Simulation JPCS 2009.pdf]

E. W. Bethel, C. Johnson, S. Ahern, J. Bell, P.-T. Bremer, H. Childs, E. Cormier-Michel, M. Day, E. Deines, T. Fogal, C. Garth, C. G. R. Geddes, H. Hagen, B. Hamann, C. Hansen, J. Jacobsen, K. Joy, J. Krüger, J. Meredith, P. Messmer, G. Ostrouchov, V. Pascucci, K. Potter, Prabhat, D. Pugmire, O. Rübel, A. Sanderson, C. Silva, D. Ushizima, G. Weber, B. Whitlock, K. Wu. "Occam's Razor and Petascale Visual Data Analysis." In Journal of Physics Conference Series, Proceedings of SciDAC 2009. LBNL-2210E. [Bethel, Geddes Visual Analysis JCP 2009]

O. Ruebel, C.G.R. Geddes, E. Cormier-Michel, K. Wu, Prabhat1, G.H. Weber1, D.M. Ushizima, P. Messmer, H. Hagen, B. Hamann and E.W. Bethel, "Automatic beam path analysis of laser wakefield particle acceleration data" Computational Science & Discovery, v 2, 015005 (2009). LBNL-2734E. [Rubel geddes automatic beam path analysis csd 2009.pdf]

D. M. Ushizima, C. G. R> Geddes, E. Cormier-Michel, E.W. Bethel, J. Jacobsen, Prabhat, O. Rubel, G.H. Weber, B. Hamann, "Automated detection and analysis of particle beams in laser-plasma accelerator simulations," Machine Learning, Book edited by: Yagang Zhang, ISBN: 978-953-307-033-9, INTECH 2010. LBNL-3845E. [ushizima, geddes etal automated beam detection Machine Learning 2010.pdf]

K. Wu, S. Ahern, E. W. Bethel, J. Chen, H. Childs, E. Cormier-Michel, C. Geddes, J. Gu, H. Hagen, B. Hamann, W. Koegler, J. Lauret, J. Meredith, P. Messmer, E. Otoo, V. Perevoztchikov, A. Poskanzer, Prabhat, O. Rübel, A. Shoshani, A. Sim, K. Stockinger, G. Weber, W.-M. Zhang. "FastBit: Interactively Searching Massive Data." In Journal of Physics Conference Series, Proceedings of SciDAC 2009. LBNL-2164E. [Wu, Geddes etal FastBit JCP 2009.pdf]

K. Wu, A. Shoshani, and E. Otoo "FastBit: A Lightning-Fast Index Drives Massive Data Analysis." SciDAC Review 2009.

W.P. Leemans, E. Esarey, C. G. R. Geddes, Cs Toth, C. B. Schroeder, K. Nakamura, A. J. Gonsalves, D. Panasenko, E. Cormier-Michel, G. R. Plateau, "Progress on laser plasma accelerator development using transversely and longitudinally shaped plasmas," Comptes Rendus Physique, Vol. 10, No. 2-3. (March 2009), pp. 130-139. LBNL-2273E. [Leemans, geddes et al transverse and longitudinally shaped plasmas CRP 2009.pdf]

O. Rubel, Prabhat, K. Wu, H. Childs, J. Meredith, C.G.R. Geddes, E. Cormier-Michel, S. Ahern, G.H. Weber, P. Messmer, H. Hagen, B. Hamann and E.W. Bethel, "Application of High-performance Visual Analysis Methods to Laser Wakefield Particle Acceleration Data." IEEE Visualization 2008, Columbus, Ohio, October 19-24, 2008. LBNL-952E. [Rubel Geddes Visual Analysis LWFA IEEEVis09.pdf]

C.G.R. Geddes, E. Cormier-Michel, E. Esarey, K. Nakamura, G.R. Plateau, C.B. Schroeder, Cs. Toth, D.L. Bruhwiler, J.R. Cary, W.P. Leemans, "Plasma gradient controlled injection and postacceleration of high quality electron bunches," Proc. Advanced Accelerator Concepts Workshop 2008, pp. 12. LBNL-2317E. [geddes plasma downramp,postaccel,simulations aac 2008.pdf]

C.B. Schroeder, E. Esarey, C.G.R. Geddes, Cs. Toth and W.P. Leemans, "Design considerations for a laser-plasma linear collider," Proc. Advanced Accelerator Concepts Workshop 2008, pp. 208. LBNL-3181E. [Schroeder, Geddes LPLC AAC2008.pdf]

E. Cormier-Michel, C.G.R. Geddes, E. Esarey, C.B. Schroeder, Cs. Toth, D.L. Bruhwiler,K. Paul, B. Cowan, W.P. Leemans, "Scaled simulations of a 10GeV accelerator," Proc. Advanced Accelerator Concepts Workshop 2008, pp. 297. LBNL-2203E. [Michel Geddes scaled simulation of 10 GeV AAC 2008.pdf]

K. Paul, D.L. Bruhwiler, B. Cowan, J.R. Cary, C. Huang, F.S. Tsung, W.B. Mori, E. Cormier-Michel, C.G.R. Geddes, E. Esarey, S. Martins, R.A. Fonseca and L.O. Silva, "Benchmarking the codes VORPAL, OSIRIS and QuickPIC with Laser Wakefield Acceleration Simulations," Proc. Advanced. Accel. Concepts Workshop (2008). LBNL-2293E. [Paul, Geddes Benchmarking AAC08.pdf]

D. Panasenko, A. J. Shu, C. B. Schroeder, A. J. Gonsalves, K. Nakamura, N. H. Matlis, E. Cormier-Michel, G. Plateau, C. Lin, C. Toth, C. G. R. Geddes, E. Esarey and W. P. Leemans, "Staging Laser Plasma Accelerators for Increased Beam Energy," Proc. Advanced Accelerator Concepts Workshop 2008, pp. 215. LBNL-3413E. [Panasenko, Geddes staging LWFAs AAC2008.pdf]

G.R. Plateau,N.H. Matlis, O.Albert, C.Toth, C.G.R.Geddes, C.B.Schroeder, J.vanTilborg, E.Esarey, and W.P. Leemans, "Optimization of THz Radiation Generation from a Laser Wakefield Accelerator," Proc. Advanced Accelerator Concepts Workshop 2008, pp. 713. [Plateau, Geddes THz optimization AAC2008.pdf]

N.H. Matlis, G.R. Plateau, J. van Tilborg, C.G.R. Geddes, Cs. Toth, C.B. Schroeder, E. Esarey and W.P. Leemans, "High-Field, uJ-Class THz Pulses from a Laser Wakefield Accelerator," Proc. Advanced Accelerator Concepts Workshop 2008, pp. 707. [Matlis, Geddes microjoule THz AAC2008.pdf]

K. Nakamura, A.J. Gonsalves, D. Panasenko, C. Lin, Cs. Toth, C.G.R. Geddes, C.B. Schroeder, E. Esarey and W.P. Leemans, "Analysis of Capillary Guided Laser Plasma Accelerator Experiments at LBNL," Proc. Advanced Accelerator Concepts Workshop 2008, pp. 707. LBNL-2029E. [Nakamura, Geddes Capillary LPA AAC 2008.pdf]

D.L. Bruhwiler, J.R. Cary, B. Cowan, K. Paul, C.G.R. Geddes, P. Mullowney, P. Messmer, E. Esarey, E. Cormier-Michel, W.P. Leemans, J.-L. Vay, "New Developments in the Simulation of Advanced Accelerator Concepts," Proc. Advanced. Accel. Concepts Workshop (2008) pp. 29. LBNL-2263E. [Bruhwiler, Geddes simulation developments AAC2008.pdf]

B. Cowan , D. Bruhwiler , E. Cormier-Michel, E. Esarey, C.G.R. Geddes, P. Messmer and K. Paul "Laser wakefield simulation using a speed-of-light frame envelope model," Proc. Advanced. Accel. Concepts Workshop (2008) pp. 307. LBNL-2278E. [Cowan, Geddes envelope simulations AAC08.pdf]

Cs. Toth, K. Nakamura, A. Gonsalves, D. Panasenko, N. Matlis, C. G. R. Geddes, C. B. Schroeder, E. Esarey, W. P. Leemans: 1 GeV Electron Beams from a Laser-Driven Channel-Guided Accelerator, CLEO/QELS 2008, San Jose, CA, May 4-9, 2008 (Invited). [Toth Geddes etal, GeV beams CLEO08.pdf]

O. Rubel, Prabhat, K. Wu, H. Childs, J. Meredith, C.G.R. Geddes, E. Cormier-Michel, S. Ahern, G.H. Weber, P. Messmer, H. Hagen, B. Hamann and E.W. Bethel, "High Performance Multivariate Visual Data Exploration for Extremely Large Data." SC08, Austin TX, November, 2008. LBNL-716E.[Rubel Geddes Visual Exploration of Data SC08.pdf]

D. M. Ushizima, O. Rubel, Prabhat, G.H. Weber, E.W. Bethel, C.R. Aragon, C.G.R. Geddes, E. Cormier-Michel, B. Hamann, P. Messmer, H. Hagen, "Automated analysis for detecting beams in laser wakefield simulations," Proc. ICMLA 2008. LBNL-960E.[Ushizima Geddes etal Automated bunch identification ICMLA08.pdf]

C.G.R. Geddes, D. Bruhwiler, J.R. Cary, E. Cormier-Michel, E. Esarey, C.B. Schroeder, W.A. Isaacs, N. Stinus, P. Messmer, A. Hakim, K. Nakamura, A.J. Gonsalves, D. Panasenko, G.R. Plateau, Cs. Toth, B. Nagler, J. van Tilborg, T. Cowan, S.M. Hooker and W.P. Leemans, "Laser wakefield simulations towards development of compact particle accelerators," J. Phys. Conf. Series V 78 pp. 12021/1-5 (2007).[Geddes laser wakefield simulation SciDAC2007.pdf]

K. Ta Phuoc, E. Esarey, V. Leurent, E. Cormier-Michel, C. G. R. Geddes, C. B. Schroeder, A. Rousse, and W. P. Leemans, "Betatron radiation from density tailored plasmas," Phys. Plasmas V 15, 063102 (2008). LBNL-2292E. [phuoc geddes et al betatron radiation tailored plasmas PoP 2008.pdf]

E. Esarey, C.B. Schroeder, E. Cormier-Michel, B.A. Shadwick, C.G.R Geddes, W. P. Leemans, "Thermal effects in plasma-based accelerators," Physics of Plasmas V 14, pp. 056707/1-8 (2007). LBNL-63071. [Esarey, Geddes thermal effects pop2007.pdf]

D.A. Dimitrov, R.E. Giancone, D.L. Bruhwiler, R. Busby, J.R. Cary, C.G.R. Geddes, E. Esarey, W.P. Leemans, "Coupling of laser energy into plasma channels," Physics of Plasmas V 14, pp. 043105/1-14 (2007). LBNL-63723. [Dimitrov, Geddes channel coupling simulations PoP 2007.pdf]

J. van Tilborg, C. B. Schroeder, Cs. Toth, C. G. R. Geddes, E. Esarey, and W. P. Leemans, "Single-shot spatio-temporal measurements of high-field terahertz pulses," Optics Letters V 32 no. 3, pp. 313-315 (2007). LBNL-61983. [van Tilborg, Geddes THZ single shot optics letter 2007.pdf]

S.M. Hooker, E. Brunetti, E. Esarey, J.G. Gallacher, C.G.R. Geddes, A.J. Gonsalves, D.A. Jaroszynski, C. Kamperidis, S. Kneip, K. Krushelnick, W.P. Leemans, S.P.D. Mangles, C.D. Murphy, B. Nagler, Z. Najmudin, K. Nakamura, P.A. Norreys, D. Panasenko, T.P. Rowlands-Rees, C.B. Schroeder, Cs. Toth and R. Trines, "GeV plasma accelerators driven in waveguides," Plasma Physics and Controlled Fusion V 49 no. 12B, pp. B403-410, (2007). LBNL-63734. [Hooker, Geddes capillary PPCF2007.pdf]

J.R. Cary, P. Spentzouris, J. Amundson, L. McInnes, M. Borland, B. Mustapha, B. Norris, P. Ostroumov, Y. Wang, W. Fischer, A. Fedotov, I. Ben-Zvi, R. Ryne, E. Esarey, C. Geddes, J. Qiang, E. Ng, S. Li, C. Ng, R. Lee, L. Merminga, H. Wang, D.L. Bruhwiler, D. Dechow, P. Mullowney, P. Messmer, C. Nieter, S. Ovtchinnikov, K. Paul, P. Stoltz, D. Wade-Stein, W.B. Mori, V. Decyk, C.K. Huang, W. Lu, M. Tzoufras, F. Tsung, M. Zhou, G.R. Werner, T. Antonsen and T. Katsouleas, "COMPASS, the COMmunity petascale project for accelerator science and simulation, a broad computational accelerator physics initiative," J. Phys. Conf. Series V 78 pp. 12009/1-9 (2007). LBNL-63732. [Cary, Geddes COMPASS accelerator modeling SciDAC2007.pdf]

F.S. Tsung, T. Antonsen, D.L. Bruhwiler, J.R. Cary, V.K. Decyk, E. Esarey, C.G.R. Geddes, C. Huang, A. Hakim, T. Katsouleas, W. Lu, P. Messmer, W.B. Mori, M. Tzoufras and J. Vieira, "Three-dimensional particle-in-cell simulations of laser wakefield experiments," J. Phys. Conf. Series V 78, pp 12077/1-9 (2007). LBNL-63731. [Tsung, Geddes particle in cell modeling SicDAC2007.pdf]

C.G.R. Geddes, E. Cormier-Michel, E.Esarey, W.P. Leemans, K. Nakamura, D. Panasenko, G.R. Plateau, C.B. Schroeder, Cs. Toth, J.R. Cary, "Stable electron beams with low absolute energy spread from a laser wakefield accelerator with plasma density ramp controlled injection," Proc. Particle Accel Conference, Albuquerque NM, pp. 1916-1918 (2007). LBNL-63269. [Geddes plasma downramp injection PAC 2007.pdf]

G. Plateau, E. Esarey, C.G.R. Geddes, W.P. Leemans, N.Matlis, C.B. Schroeder, J. van Tilborg, Cs. Toth, "Recent Progress at LBNL on Characterization of Laser Wakefield Accelerated Electron Bunches using Coherent Transition Radiation", Proc. Particle Accel Conference, Albuquerque NM, pp.2981-3 (2007). LBNL-63273. [Plateau,Geddes downramp injection THz PAC 2007.pdf]

A.J. Gonsalves, K. Nakamura, Cs. Toth, C.G.R. Geddes, C.B. Schroeder, E. Esarey, E. Cormier-Michel, D. Bruhwiler, J.R. Cary, S. M. Hooker, W. P. Leemans, "GeV electron beams from a centimeter-scale laser-driven plasma accelerator", Proc. Particle Accel Conference, Albuquerque NM, pp. 1911-1915 (2007). LBNL-63070. [Gonsalves, Geddes GeV capillary PAC 2007.pdf]

K. Nakamura, E. Esarey, C.G.R. Geddes, A.J. Gonsalves, W.P. Leemans, D. Panasenko, C.B. Schroeder and C. Toth, "Performance of capillary discharge guided laser plasma wakefield accelerator," Proc. Particle Accel Conference, Albuquerque NM, pp. 2978-2980 (2007). LBNL-63270. [Nakamura, Geddes capillary performance PAC 2007.pdf]

C. Toth, E. Esarey, C.G.R. Geddes, W.P. Leemans, K. Nakamura, D. Panasenko, C.B. Schroeder, "Colliding pulse injection experiments in non-collinear geometry for controlled laser plasma wakefield acceleration of electron," Proc. Particle Accel Conference, Albuquerque NM, pp. 2975-77 (2007). LBNL-63271. [Toth, Geddes Colliding pulse PAC 2007.pdf]

C.B. Schroeder, Cs. Toth, B. Nagler, A.J. Gonsalves, K. Nakamura, C.G.R. Geddes, E. Esarey, S.M. Hooker, W.P. Leemans, "GeV electron beams from a laser-plasma accelerator," Proceedings of the IEEE LEOS Annual Meeting Conference Piscataway, NJ, USA(IEEE Cat. No. 06CH37736C), pp. 2. LBNL-61982. (2006).

W.P. Leemans, E. Esarey, C.G.R. Geddes, C.B. Schroeder, Cs. Toth, "Laser guiding for GeV laser-plasma accelerators", Phil. Trans. R. Soc. A, V 364, pp. 585-600 (2006). LBNL-58352.

D.L. Bruhwiler and T. Antonsen and J.R. Cary and J. Coolery and V.K. Dycek and E. Esarey and C.G.R. Geddes and C. Huang and A. Hakim and T. Katsouleas and P. Messmer and W.B. Mori and F.S. Tsung and J. Vieira and M. Zhou, “Towards the petascale in electromagnetic modeling of plasma-based accelerators for high-energy physics,” J. Phys. Conf. Series 46, pp. 215 (2006). LBNL-63733.

C.G.R. Geddes, E. Esarey, P. Michel, B. Nagler, K. Nakamura, G.R. Plateau, C.B. Schroeder, B.A. Shadwick, Cs. Toth, J Van Tilborg, W.P. Leemans, "Low energy spread 100 mev-1 gev electron bunches from laser wakefield acceleration at loasis," Proceedings of the Linac Conference, Knoxville TN, pp. 806-808 (2006). LBNL-63722. [geddes low energy spread bunches, linac 2006pdf]

E. Michel, B. A. Shadwick, C. B. Schroeder, C. G. R. Geddes, E. Esarey, W. P. Leemans, H. Ruhl and T. Cowan, "Accurate Modeling of Laser-Plasma Accelerators with Particle-In-Cell Codes," Proceedings of the Advanced Accelerator Concepts Workshop, Lake Geneva WI, pp. 213- 219 (2006). LBNL-63786. [michel,geddes numerics.pdf]

E. Esarey, B. Nagler, A.J. Gonsalves, Cs. Toth, K. Nakamura, C.G.R. Geddes, C.B. Schroeder, S.M. Hooker, W.P. Leemans, E. Michel, J. Cary, and D. Bruhwiler, "High quality electron bunches up to 1 GeV from laser wakefield acceleration at LBNL", Proceedings of the Advanced Accelerator Concepts Workshop, Lake Geneva WI, pp. 8-14, (2006). LBNL-63724.

J. van Tilborg, C.B. Schroeder, C.V. Filip, Cs. Toth, C.G.R. Geddes, G. Fubiani, E. Esarey, and W.P. Leemans, "Terahertz radiation as a bunch diagnostic for laser-wakefield-accelerated electron bunches," Phys. Plasmas V 13, 056704/1-9 (2006). [ LBNL-60017.vantilborg, geddes THz pop 2006.pdf]

Cs. Toth, J. van Tilborg, C.B. Schroeder, C.G.R. Geddes,E. Esarey, and W.P. Leemans, "Spatio-Temporal Properties of Single-Cycle THz Pulses Generated by Relativistic Electron Beams in a Laser-Plasma Accelerator," Proc. Ultrafast Phenomena XV (2006). W.P. Leemans, E. Esarey, C.G.R. Geddes, C.B. Schroeder, Cs. Toth, "Recent progress on laser driven accelerators and applications," Nuclear Engineering and Technology, 37, pp. 299-308 (2005). LBNL-61207.

W.B. Mori, F.S. Tsung, C. Huang, M. Zhou, W. Lu, M. Tzoufras, V.K. Decyk, D.L. Bruhwiler, J.R. Cary, P. Messmer, D.A. Dimitrov, C. Nieter, T. Katsouleas, S. Deng, A. Ghalam, E.H. Esarey, C.G.R. Geddes, J.H. Cooley, T.M. Jr. Antonsen, "Advanced accelerator simulation research: miniaturizing accelerators from kilometers to meters," Journal of Physics: Conference Series, V 16, no. 1, pp. 184-94 (2005). LBNL-61228. [ Mori, Geddes Adv Accel JCP 05.pdf ]

C.G.R. Geddes, Cs. Toth, J Van Tilborg, E. Esarey, C.B. Schroeder, D. Bruhwiler, C. Nieter, J.R. Cary, W.P. Leemans, "Laser Guiding at Relativistic Intensities and Wakefield Particle Acceleration in Plasma Channels," Conference on Lasers and Electro Optics, Baltimore MD (2005). LBNL-56157. [Geddes guiding+accel CLEO 2005.pdf]

C.G.R. Geddes, E. Esarey, C.B. Schroeder, Cs. Toth, J Van Tilborg, J.R. Cary, C. Nieter, W.P. Leemans, "Mono-Energetic Beams From Laser Plasma Interactions," Proceedings of the Particle Accelerator Conference, Knoxville TN, pp. 69-73 (2005). LBNL-56964. [Geddes monoenergetic beams PAC 2005.pdf]

P. Messmer, D. Bruhwiler, D. Dimitrov, P. Stoltz, W.P. Leemans, E. Esarey, C. Geddes, "Particle-In-Cell Simulations Of Lower-Density cm-Scale Capillary Channels," Proceedings of the Particle Accelerator Conference, Knoxville TN (2005). LBNL-58374. [Messmer,Geddes cm scale simulations 2005.pdf]

R. E. Giacone, D. A. Dimitrov, D. L. Bruhwiler, P. Messmer and J. R. Cary, C. G. R. Geddes, E. Esarey and W. Leemans, "Simulations Of Laser Pulse Coupling And Transmission Efficiency In Plasma Channels," Proceedings of the Particle Accelerator Conference, Knoxville TN (2005). LBNL-61232 [Giaconne, Geddes coupling simulation PAC 2005.PDF]

W.P. Leemans, J. van Tilborg, J. Faure, C.G.R. Geddes, Cs. Toth, C.B. Schroeder, E. Esarey, G. Fubiani, and G. Dugan, "Terahertz radiation from laser accelerated electron bunches", Phys. Plasmas V 5, pp. 2899-2906 (2004). LBNL-54258.[Leemans, Geddes THz PoP 2004.pdf]

C.G.R. Geddes, Cs. Toth, J. Van Tilborg, E. Esarey, C.B. Schroeder, D. Bruhwiler, J. Cary, W.P. Leemans, "Laser Guiding at Relativistic Intensities and Wakefield Particle Acceleration in Plasma Channels," Proceedings of the Advanced Accelerator Concepts Workshop, Brookhaven NY, pp. 521-7, (2004). [ Geddes Guided Accel AAC 2004.pdf ]

Cs. Toth, C.G.R. Geddes, J. van Tilborg, and W. P. Leemans, "A multi-beam, multi-terawatt Ti: sapphire laser system for laser wake-field acceleration studies," Proceedings of the Advanced Accelerator Concepts Workshop (Amer. Inst. Phys., NY, #737), Brookhaven NY, pp. 978-982 (2004). LBNL-57056. [Toth, Geddes laser AAC 2004.pdf]

K. Nakamura, G. Fubiani, C.G.R. Geddes, P. Michel, J. van Tilborg, C. Toth, E. Esarey, C.B. Schroeder, and W.P. Leemans, "Laser Triggered Injection of Electrons in a Laser Wakefield Accelerator with the Colliding Pulse Method," Proceedings of the Advanced Accelerator Concepts Workshop (Amer. Inst. Phys., NY, #737), Brookhaven NY, pp. 901-906 (2004). LBNL-56575. [Nakamura, Geddes Injection AAC 2004.pdf]

J. van Tilborg, C.G.R. Geddes, C. Toth, E. Esarey, C.B. Schroeder, M. C. Martin, Z. Hao, and W.P. Leemans, "Coherent Transition Radiation From a Laser Wakefield Accelerator as an Electron Bunch Diagnostic," Proceedings of the Advanced Accelerator Concepts Workshop (Amer. Inst. Phys., NY, #737), Brookhaven NY, pp. 372-378 (2004). LBNL-56573. []

D.A. Dimitrov, D. L. Bruhwiler, J.R. Cary, P. Messmer, C.G.R. Geddes, W. Leemans and E. Esarey, "Particle-in-cell simulations of intense laser pulses coupling into plasma channels",Proceedings of the Advanced Accelerator Concepts Workshop (Amer. Inst. Phys., NY, #737), Brookhaven NY, pp. 469-477 (2004). LBNL-57057. []

C.G.R. Geddes, Cs. Toth, J. van Tilborg, and W.P. Leemans, "Laser guiding at > 10^18 W/cm^2 in plasma channels formed by the ignitor heater method", Proceedings of CLEO/IQEC 2004 Conference, San Francisco, CA, May 16 - 21, (2004). LBNL-51833. []

W.P. Leemans, C.G.R. Geddes, J. van Tilborg, M. Dickinson, S. DiMaggio, D. Syversrud, J. Wallig, N. Ybarrolaza, and Cs. Toth, "L'OASIS Ti:sapphire laser facility: a multi-beam, multi-terawatt system for wake-field acceleration studies," Proceedings of the CLEO/IQEC 2004 Conference, San Francisco, CA (2004). LBNL-57114. []

J. van Tilborg, G. Fubiani, C.G.R. Geddes, Cs. Toth, E. Esarey, C.B. Schroeder, and W.P. Leemans, "High-energy coherent THz radiation from laser wakefield accelerated ultrashort electron bunches," Proceedings of the CLEO/IQEC 2004 Conference, San Franscico, CA (2004). LBNL-55864. []

Cs. Toth, J. van Tilborg, C.G.R. Geddes, G. Fubiani, C.B. Schroeder, E. Esarey, J. Faure, G. Dugan, and W.P. Leemans, "Powerful pulsed THz radiation from laser-accelerated relativistic electron bunches," Proceedings SPIE 5448, pp. 491-504 (2004). LBNL-57055. [Toth, Geddes THz SPIE2004.pdf]

Cs. Toth, J. Faure, J. van Tilborg, C. G. R. Geddes, C. B. Schroeder, E. Esarey, W. P. Leemans, "Asymmetric Pulse Shapes in Grating-Based CPA Compressors and Optimal Electron Acceleration in Plasmas," in Ultrafast Optics IV, Eds. Ferenc Krausz, Georg Korn, Paul Corkum, and Ian A. Walmsley (Springer, Berlin) pp. 351-358 (2004). LBNL-57054. []

E. Esarey, C.B. Schroeder, B.A. Shadwick, J. van Tilborg, C.G.R. Geddes, Cs. Toth, W.P. Leemans. "Radiation generation from plasma-based accelerators," IEEE International Conference On Plasma Science, Piscataway, NJ, pp.156 (2004).]

R.K. Kirkwood, R.L. Berger, C.G.R. Geddes, J.D. Moody, B.J. MacGowan, S.H. Glenzer, K.G. Estabrook, C. Decker, and O.L. Landen, "Scaling of saturated stimulated Raman scattering with temperature and intensity in ignition scale plasmas," Physics of Plasmas, V 10, no. 7, pp.2948-55 (2003). [ Kirkwood,Geddes SRS scale PoP2003.pdf ]

C.B. Schroeder, E. Esarey, C.G.R. Geddes, Cs. Toth, B.A. Shadwick, J. van Tilborg, J. Faure, and W.P. Leemans, "Frequency chirp and pulse shape effects in self-modulated laser wakefield accelerators," Physics of Plasmas, V 10, no. 5, pp. 2039-46 (2003). LBNL-52176. [ Schroeder,Geddes Chirp PoP 2003.pdf ]

Cs. Toth, J. Faure, J. van Tilborg, C.G.R. Geddes, C.B. Schroeder, E. Esarey, W.P. Leemans. "Tuning of laser pulse shapes in grating based compressors for optimal electron acceleration in plasmas," Optics Letters, V 28, no. 19, pp. 1823-1825 (2003). LBNL-52178. [ Toth, Geddes pulseshapes OL 2003.pdf ]

Cs. Toth, J. Faure, C.G.R. Geddes, J. van Tilborg, W.P. Leemans "Shaping of pulses in optical grating-based laser systems for optimal control of electrons in laser plasma wake-field accelerator," Proceedings of the 2003 Particle Accelerator Conference vol.3, Piscataway, NJ, pp.1840-2 (2003). LBNL-51819.

W.P. Leemans, P. Catravas, E. Esarey, C.G.R. Geddes, C. Toth, R. Trines, C.B. Schroeder, B.A. Shadwick, J. van Tilborg, J. Faure, "Electron-yield enhancement in a laser-wakefield accelerator driven by asymmetric laser pulses," Physical Review Special Topics-Accelerators & Beams, V 5, no. 10 (2002). [PRST-AB]

Cs. Toth, J. Faure, J. van Tilborg, C. G. R. Geddes, C. B. Schroeder, E. Esarey, and W. P. Leemans, "Shape-control of ultrashort laser pulses for optimal electron acceleration in plasmas," AIP Conference Proceedings, no.647- Proc. Advanced Accelerator Concepts Workshop, pp. 674-80 (2002). LBNL-51578. [ Toth,Geddes Pulseshape AAC 2002.pdf ]

Cs. Toth, J. de Groot, J. van Tilburg, C.G.R. Geddes, J. Faure, P. Catravas, C.B. Schroeder, B.A. Shadwick, E. Esarey, W.P. Leemans, "Evolution of pulse shapes during a conventional compressor scan in a chirped pulse amplification (CPA) system and its effect on electron acceleration in plasmas," Thirteenth International Conference on Ultrafast Phenomena, Technical Digest (TOPS Vol.72), Opt. Soc. America. pp. 64-5 (2002). LBNL-52183. [ Toth, Geddes pulseshapes UF2002.pdf ]

C.G.R. Geddes, P.E. Catravas, J. Faure, C. Toth, J. VanTilborg, W.P. Leemans, "Accelerator optimization using a network control and acquisition system," AIP Conference Proceedings, no.647- Proc. Advanced Accelerator Concepts Workshop, pp. 796-801 (2002). LBNL-51577. [ Geddes Control System AAC 2002.pdf ]

W.P. Leemans, D. Rodgers, P.E. Catravas, C.G.R. Geddes, G. Fubiani, C. Toth, E. Esarey, B.A. Shadwick, R. Donahue, A. Smith, A. Reitsma, "Radio-isotope production using laser wakefield accelerators," Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268). IEEE. Part vol.1, pp. 129-31 (2001). LBNL-49862. [ Leemans, Geddes Radioisotopes PAC 2001.pdf ]

W. P. Leemans, D. Rodgers, P. E. Catravas, C.G.R. Geddes, G. Fubiani, E. Esarey, B. A. Shadwick, R. Donahue, and A. Smith, "Gamma-neutron activation experiments using laser wakefield accelerators," Physics of Plasmas, V 8, no. 5, pp. 2510-16 (2001). LBNL-47540. [ Leemans,Geddes Activation PoP 2001.pdf ]