Title :
Cathodeless, high brightness electron beam production by multiple laser beams in plasmas
Author :
Hemker, R.G. ; Tzeng, K.-C. ; Mori, W.B. ; Clayton, C.E. ; Katsouleas, T.
Author_Institution :
California Univ., Los Angeles, CA, USA
Abstract :
The use of two crossed laser pulses in a plasma for the cathodeless production of high current low emittance electron beams is examined with fully relativistic 2-1/2D particle-in-cell (PIC) simulations. Estimates for the number of injected particles, their energy spread, and their emittance are given as functions of the amplitude and timing of the injection pulse relative to the drive pulse of the LWFA. The physical mechanism of the trapping of particles is examined based on single particle phase space trajectories in the self-consistent PIC simulations
Keywords :
electron beams; high energy physics instrumentation computing; particle beam injection; wakefield accelerators; LWFA; cathodeless high brightness electron beam production; crossed laser pulses; emittance; energy spread; high current low emittance electron beams; injected particles; laser wakefield accelerator; multiple laser beams; particle-in-cell simulations; plasmas; selfconsistent simulations; single particle phase space trajectories; Brightness; Electron beams; Electron traps; Laser beams; Optical pulses; Particle beams; Plasma accelerators; Plasma simulation; Plasma waves; Production;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.752846
