97 citations · 317 across the 15 of their papers we have counts for
9 papers · 1 filter
High-charge 10 GeV electron acceleration in a 10 cm nanoparticle-assisted hybrid wakefield accelerator
Constantin Aniculaesei, Thanh Ha, Samuel Yoffe +23
In an electron wakefield accelerator, an intense laser pulse or charged particle beam excites plasma waves. Under proper conditions, electrons from the background plasma are trappe…
Faraday rotation study of plasma bubbles in GeV wakefield accelerators
Y. Y. Chang, X. Cheng, A. Hannasch +8
We visualize plasma bubbles driven by 0.67 PW laser pulses in plasma of density by imaging Faraday rotation patterns imprinted on linea…
Stable Positron Acceleration in Thin, Warm, Hollow Plasma Channels
T. Silva, L. D. Amorim, M. C. Downer +4
Hollow plasma channels are attractive for lepton acceleration because they provide intrinsic emittance preservation regimes. However, beam breakup instabilities dominate the dynami…
Compact Spectroscopy of keV to MeV X-rays from a Laser Wakefield Accelerator
A. Hannasch, A. Laso Garcia, M. LaBerge +12
We reconstruct spectra of secondary X-rays from a tunable 250-350 MeV laser wakefield electron accelerator from single-shot X-ray depth-energy measurements in a compact (7.5 $\time…
Evolution of the self-injection process in the transition of an LWFA from self-modulation to blowout regime
Prabhat Kumar, Kwangmin Yu, Rafal Zgadzaj +5
Long wavelength infrared (LWIR) laser driven plasma wakefield accelerators are investigated here in the self-modulated laser wakefield acceleration (SM-LWFA) and blowout regimes us…
Dissipation of electron-beam-driven plasma wakes
Rafal Zgadzaj, Zhengyan Li, M. C. Downer +10
Metre-scale plasma wakefield accelerators have imparted energy gain approaching 10 gigaelectronvolts to single nano-Coulomb electron bunches. To reach useful average currents, howe…
Observation of Plasma Bubble Structures in a GeV Laser-Plasma Accelerator
Yen-Yu Chang, Kathleen Weichman, Xiantao Cheng +8
We measure characteristics of plasma bubbles in GeV-class laser-plasma accelerators (LPAs) using Faraday rotation diagnostics. We extend these techniques, previously demonstrated f…
Self-aligning concave relativistic plasma mirror with adjustable focus
Hai-En Tsai, Alexey V. Arefiev, Joseph M. Shaw +4
We report an experimental-computational study of the optical properties of plasma mirrors (PMs) at the incident laser frequency when irradiated directly at relativistic intensity (…
Compact tunable Compton x-ray source from laser-plasma accelerator and plasma mirror
Hai-En Tsai, Xiaoming Wang, Joseph Shaw +8
We present an in-depth experimental-computational study of the parameters necessary to optimize a tunable, quasi-monoenergetic, efficient, low-background Compton backscattering (CB…