Huaibi Chen

TL;DR: The production of ultrabright electron bunches using ionization injection triggered by two transversely colliding laser pulses inside a beam-driven plasma wake is examined via three-dimensional particle-in-cell simulations to minimizes both the initial thermal emittance and the emittance growth due to transverse phase mixing.

TL;DR: The experimental generation and characterization of the first hard X-ray pulses via head-on collision of an 800 nm laser and 46.7 MeV electron beams are reported.

TL;DR: A single-shot, high quality, streaked diffraction pattern allowed structural information within several picoseconds to be continuously temporally resolved with an approximately 200 fs resolution.

TL;DR: In this article, the evolution of beam phase space in ionization injection into plasma wakefields is studied using theory and particle-in-cell simulations, and it is shown how ultralow emittance beams can be produced using ionisation injection methods.

TL;DR: In this paper, the Tsinghua Thomson scattering X-ray (TTX) source was proposed as an ultra-fast, high flux source for advanced Xray imaging studies and applications, which consists of an S-band photocathode RF gun, a SLAC type 3 m traveling wave tube and two X-band structures.