Enhanced betatron x-ray emission in a laser wakefield accelerator and wiggler due to collective oscillations of electrons by S. Mishra, B. S. Rao, A. Moorti, J. A. Chakera

“…We report x-ray emission caused by betatron motion of electrons in a laser wakefield accelerator driven by high intensity (∼4×10^{19}  W/cm^{2}) laser pulse interaction with a 4-mm long helium gas-jet and study the role of collective oscillation of electrons as well as plasma density. …”
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High-charge electron beams from a laser-wakefield accelerator driven by a CO2 laser by Enrico Brunetti, R. Neil Campbell, Jack Lovell, Dino A. Jaroszynski

“…Abstract Laser-wakefield accelerators (LWFAs) driven by widely available 100s TW-class near-infrared laser systems have been shown to produce GeV-level electron beams with 10s–100s pC charge in centimetre-scale plasma. …”
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Strategies for mitigating the ionization-induced beam head erosion problem in an electron-beam-driven plasma wakefield accelerator by W. An, M. Zhou, N. Vafaei-Najafabadi, K. A. Marsh, C. E. Clayton, C. Joshi, W. B. Mori, W. Lu, E. Adli, S. Corde, M. Litos, S. Li, S. Gessner, J. Frederico, M. J. Hogan, D. Walz, J. England, J. P. Delahaye, P. Muggli

“…Strategies for mitigating ionization-induced beam head erosion in an electron-beam-driven plasma wakefield accelerator (PWFA) are explored when the plasma and the wake are both formed by the transverse electric field of the beam itself. …”
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Witness electron beam injection using an active plasma lens for a proton beam-driven plasma wakefield accelerator by S.-Y. Kim, K. Moon, M. Chung, K. N. Sjobak, E. Adli, S. Doebert, M. Dayyani, E. S. Yoon, I. Nam, G. Hahn

“…The APL is therefore an attractive element for plasma wakefield acceleration, because an ultrasmall size of the witness electron beam is required for injection into the plasma wakefield to minimize emittance growth and to enhance the capturing efficiency. …”
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Generation of 565 MW of X-band power using a metamaterial power extractor for structure-based wakefield acceleration by Julian Picard, Ivan Mastovsky, Michael A. Shapiro, Richard J. Temkin, Xueying Lu, Manoel Conde, D. Scott Doran, Gwanghui Ha, John G. Power, Jiahang Shao, Eric E. Wisniewski, Chunguang Jing

“…We report the generation of up to 565 MW, 2.7 ns (FWHM) pulses at 11.7 GHz from a metamaterial structure in test at the Argonne Wakefield Accelerator. The highest power was generated by a train of eight 65 MeV electron bunches spaced at 1.3 GHz with a total charge of 355 nC. …”
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Laser pulse-electron beam synergy effect on electron self-injection and higher energy gain in laser wakefield accelerators by Sahar Barzegar, Ali Reza Niknam

“…Abstract A new scheme for injection and acceleration of electrons in wakefield accelerators is suggested based on the co-action of a laser pulse and an electron beam. …”
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Numerical study on femtosecond electro-optical spatial decoding of transition radiation from laser wakefield accelerated electron bunches by K. Huang, Z. Jin, N. Nakanii, T. Hosokai, M. Kando

“…This numerical study could facilitate measurements of 3D electron charge density profiles in both laser wakefield acceleration and conventional accelerator research.…”
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High-energy coherent terahertz radiation emitted by wide-angle electron beams from a laser-wakefield accelerator by Xue Yang, Enrico Brunetti, Dino A Jaroszynski

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Modeling chromatic emittance growth in staged plasma wakefield acceleration to 1 TeV using nonlinear transfer matrices by Alec G. R. Thomas, Daniel Seipt

“…A framework for integrating transfer matrices with particle-in-cell simulations is developed for TeV staging of plasma wakefield accelerators. Using nonlinear transfer matrices in terms up to ninth order in normalized energy spread sqrt[⟨δγ^{2}⟩] and deriving a compact expression for the chromatic emittance growth in terms of the nonlinear matrix, plasma wakefield accelerating stages simulated using the three-dimensional particle-in-cell framework osiris 4.0 were combined to model acceleration of an electron beam from 10 GeV to 1 TeV in 85 plasma stages of meter scale length with long density ramps and connected by simple focusing lenses. …”
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Femtosecond Laser Fabrication of Curved Plasma Channels with Low Surface Roughness and High Circularity for Multistage Laser-Wakefield Accelerators by Hongyang Deng, Ziyang Zhang, Min Chen, Jianlong Li, Qiang Cao, Xuejiao Hu

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Effect of a Femtosecond-Scale Temporal Structure of a Laser Driver on Generation of Betatron Radiation by Wakefield Accelerated Electrons by Andrey D. Sladkov, Artem V. Korzhimanov

“…The brightness of betatron radiation generated by laser wakefield accelerated electrons can be increased by utilizing the laser driver with shorter duration at the same energy. …”
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Generation of stable, low-divergence electron beams by laser-wakefield acceleration in a steady-state-flow gas cell. by Osterhoff, J, Popp, A, Major, Z, Marx, B, Rowlands-Rees, T, Fuchs, M, Geissler, M, Hörlein, R, Hidding, B, Becker, S, Peralta, E, Schramm, U, Grüner, F, Habs, D, Krausz, F, Hooker, S, Karsch, S

“…These beams emitted within a low-divergence cone of 2.1+/-0.5 mrad FWHM display unprecedented shot-to-shot stability in energy (2.5% rms), pointing (1.4 mrad rms), and charge (16% rms) owing to a highly reproducible gas-density profile within the interaction volume. Laser-wakefield acceleration in gas cells of this type provides a simple and reliable source of relativistic electrons suitable for applications such as the production of extreme-ultraviolet undulator radiation.…”

Progress towards a demonstration of multi-pulse laser wakefield acceleration and implementation of a single-shot wakefield diagnostic by Dann, S

“…<p>An ongoing experiment is described to demonstrate the principle of multi-pulse laser wakefield acceleration, in which a plasma wakefield is resonantly excited by a train of laser pulses, spaced by the plasma wavelength. …”

Towards a free-electron laser driven by electrons from a laser-wakefield accelerator: simulations and bunch diagnostics by Bajlekov, S

“…<p>This thesis presents results from two strands of work towards realizing a free-electron laser (FEL) driven by electron bunches generated by a laser-wakefield accelerator (LWFA). The first strand focuses on selecting operating parameters for such a light source, on the basis of currently achievable bunch parameters as well as near-term projections. …”

Single-shot multi-keV X-ray absorption spectroscopy using an ultrashort laser-wakefield accelerator source by Kettle, B, Gerstmayr, E, Streeter, MJV, Albert, F, Baggott, RA, Bourgeois, N, Cole, JM, Dann, S, Falk, K, González, I, Hussein, AE, Lemos, N, Lopes, NC, Lundh, O, Ma, Y, Rose, SJ, Spindloe, C, Symes, DR, Šmíd, M, Thomas, AGR, Watt, R, Mangles, SPD

Ultrafast imaging of laser driven shock waves using betatron x-rays from a laser wakefield accelerator by Wood, JC, Chapman, DJ, Poder, K, Lopes, NC, Rutherford, ME, White, TG, Albert, F, Behm, KT, Booth, N, Bryant, JSJ, Foster, PS, Glenzer, S, Hill, E, Krushelnick, K, Najmudin, Z, Pollock, BB, Rose, S, Schumaker, W, Scott, RHH, Sherlock, M, Thomas, AGR, Zhao, Z, Eakins, DE, Mangles, SPD

“…Betatron radiation from laser wakefield accelerators is an ultrashort pulsed source of hard, synchrotron-like x-ray radiation. …”

Characteristic diagnosis of supersonic gas jet target for laser wakefield acceleration with high spatial-temporal resolution Nomarski interference system by Qiushi Liu, Mingjiang Ma, Xiaohua Zhang, Chong Lv, Jianmin Song, Zhao Wang, Guoqing Yang, Yanlei Yang, Jiahao Wang, Qinxiang Li, Baozhen Zhao

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Accurate single-shot measurement technique for the spectral distribution of GeV electron beams from a laser wakefield accelerator by C. I. Hojbota, Hyung Taek Kim, Jung Hun Shin, C. Aniculaesei, B. S. Rao, Chang Hee Nam

“…We applied the method to analyze data obtained from laser wakefield acceleration experiments performed using a multi-Petawatt laser to accelerate electron beams to multi-GeV energy. …”
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Experimental Evidence of Radiation Reaction in the Collision of a High-Intensity Laser Pulse with a Laser-Wakefield Accelerated Electron Beam by J. M. Cole, K. T. Behm, E. Gerstmayr, T. G. Blackburn, J. C. Wood, C. D. Baird, M. J. Duff, C. Harvey, A. Ilderton, A. S. Joglekar, K. Krushelnick, S. Kuschel, M. Marklund, P. McKenna, C. D. Murphy, K. Poder, C. P. Ridgers, G. M. Samarin, G. Sarri, D. R. Symes, A. G. R. Thomas, J. Warwick, M. Zepf, Z. Najmudin, S. P. D. Mangles

“…We present evidence of radiation reaction in the collision of an ultrarelativistic electron beam generated by laser-wakefield acceleration (ϵ>500  MeV) with an intense laser pulse (a_{0}>10). …”
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Low emittance electron beam generation from a laser wakefield accelerator using two laser pulses with different wavelengths by X. L. Xu, Y. P. Wu, C. J. Zhang, F. Li, Y. Wan, J. F. Hua, C.-H. Pai, W. Lu, P. Yu, C. Joshi, W. B. Mori

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