31 July 2016 to 5 August 2016
Gaylord Hotel and Conference Center
US/Eastern timezone

High quality electron bunch generation using a longitudinal density-tailored plasma-based accelerator in the blowout regime

2 Aug 2016, 13:50
20m
Woodrow Wilson CD (Gaylord Hotel)

Woodrow Wilson CD

Gaylord Hotel

Oral Working Group 1 WG1

Speaker

Dr. Xinlu Xu (University of California, Los Angeles)

Abstract

The generation of very high quality electron bunches (high brightness and low energy spread) from a plasma-based accelerator in the blowout regime using self-injection in tailored plasma density profiles is analyzed theoretically and with three-dimensional particle-in-cell simulations. The underlying physical mechanism that leads to the generation of high quality electrons is uncovered by tracking the particle trajectories of the electrons.

Summary

The generation of very high quality electron bunches (high brightness and low energy spread) from a plasma-based accelerator in the blowout regime using self-injection in tailored plasma density profiles is analyzed theoretically and with three-dimensional particle-in-cell simulations. The underlying physical mechanism that leads to the generation of high quality electrons is uncovered by tracking the particle trajectories of the electrons as they cross the sheath and are trapped by the wake. Details on how the intensity of the driver and the density scale length controls the ultimate beam quality are described.Three-dimensional particle-in-cell simulations indicate that this concept has the potential to produce beams with $\sim0.5$ nC of charge, peak brightnesses of $0.5\times10^{20}~\mathrm{A}/\mathrm{m}^{2}/\mathrm{rad}^{2}$ and with absolute projected energy spreads of $< 0.5~\mathrm{MeV}$ using existing lasers or electron beams to drive nonlinear wakefields.

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Primary author

Dr. Xinlu Xu (University of California, Los Angeles)

Co-authors

Prof. Chan Joshi (University of California, Los Angeles) Mr. Fei Li (University of California, Los Angeles) Dr. Peicheng Yu (University of California, Los Angeles) Prof. Warren Mori (University of California, Los Angeles) Dr. Wei Lu (Tsinghua) Dr. Weiming An (University of California Los Angeles)

Presentation Materials

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