Enhancement of injection and acceleration of electrons in a laser wakefield accelerator by using an argon-doped hydrogen gas jet and optically preformed plasma waveguide

Journal Article · Wed Jun 15 00:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3596438· OSTI ID:21546968

Ho, Y -C; Hung, T -S; Chen, S -Y; Chou, M -C ^[1]; Yen, C -P; Wang, J ^[1]; Chu, H -H ^[1]; Lin, J -Y ^[2]

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1. Department of Physics, National Central University, Jhong-Li 320, Taiwan (China)
2. Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan (China)

A systematic experimental study on injection of electrons in a gas-jet-based laser wakefield accelerator via ionization of dopant was conducted. The pump-pulse threshold energy for producing a quasi-monoenergetic electron beam was significantly reduced by doping the hydrogen gas jet with argon atoms, resulting in a much better spatial contrast of the electron beam. Furthermore, laser wakefield electron acceleration in an optically preformed plasma waveguide based on the axicon-ignitor-heater scheme was achieved. It was found that doping with argon atoms can also lower the pump-pulse threshold energy in this experimental configuration.

• OSTI ID: 21546968
• Journal Information: Physics of Plasmas, Vol. 18, Issue 6; Other Information: DOI: 10.1063/1.3596438; (c) 2011 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
43 PARTICLE ACCELERATORS
ACCELERATION
ARGON
DOPED MATERIALS
ELECTRON BEAMS
ELECTRONS
HYDROGEN
INJECTION
IONIZATION
PLASMA JETS
THRESHOLD ENERGY
WAKEFIELD ACCELERATORS
WAVEGUIDES
ACCELERATORS
BEAMS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
FERMIONS
FLUIDS
GASES
INTAKE
LEPTON BEAMS
LEPTONS
LINEAR ACCELERATORS
MATERIALS
NONMETALS
PARTICLE BEAMS
RARE GASES