Ultrashort high quality electron beam from laser wakefield accelerator using two-step plasma density profile

Journal Article · Mon Mar 15 04:00:00 EDT 2010 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3360927· OSTI ID:22053945

Xiongwei, Zhu ^[1]

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1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)

In this paper, we first use the rf linac injector mechanism to generate ultrashort high quality electron beam from laser wakefield accelerator (LWFA) with two-step plasma density profile successfully. We incorporate the physics principle in the conventional rf linac injector into the LWFA by using two-step plasma density to decrease the wavelength of the wakefield in plasma. Using this mechanism, we observe a ultrashort high quality electron beam (the rms energy spread is 1.9%, and the rms bunch length is 2 fs) in the simulation. The ultrashort intense terahertz coherent radiation (200 MW, 2 fs) can be generated with the proposed laser wakefield accelerator.

• OSTI ID: 22053945
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 3 Vol. 81; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM-PLASMA SYSTEMS
COHERENT RADIATION
ELECTRON BEAMS
LASERS
PLASMA DENSITY
PLASMA SIMULATION
WAKEFIELD ACCELERATORS