Laser-Driven Coherent Betatron Oscillation in a Laser-Wakefield Cavity: Formation of Sinusoid Beam Shapes and Coherent Trajectories

Journal Article · Thu Jan 22 00:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3080913· OSTI ID:21255227

Nemeth, Karoly; Yuelin, Li; Hairong, Shang; Harkay, Katherine C ^[1]; Baifei, Shen ^[1]; Crowell, Robert ^[2]; Cary, John R ^[3]

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1. Accelerator Systems Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, P.O. Box 800-211, Shanghai 201800 (China)
3. Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

High amplitude coherent electron-trajectories have been seen in 3D particle-in-cell simulations of the colliding pulse injection scheme of laser-wakefield accelerators in the bubble regime, and explained as a consequence of laser-driven coherent betatron oscillation in our recent paper [K. Nemeth et al., Phys. Rev. Lett. 100, 095002 (2008)]. In the present paper we provide more details on the shape of the trajectories, their relationship to the phase velocity of the laser and indicate the dependence of the phenomenon on the accuracy of the numerical representation and choice of laser/plasma parameters.

• OSTI ID: 21255227
• Journal Information: AIP Conference Proceedings, Vol. 1086, Issue 1; Conference: 13. advanced accelerator concepts workshop, Santa Cruz, CA (United States), 27 Jul - 2 Aug 2008; Other Information: DOI: 10.1063/1.3080913; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
BETATRON OSCILLATIONS
ELECTRONS
LASERS
PHASE VELOCITY
PLASMA
PLASMA WAVES
PULSES
SIMULATION
TRAJECTORIES
TURBULENCE
WAKEFIELD ACCELERATORS