Title :
Self-injection of electrons from evolution of wake wave
Author :
Kim, C. ; Kim, G.H. ; Kim, J.U. ; Ko, I.S. ; Lee, H.J. ; Suk, H.
Author_Institution :
Centre for Adv. Accel., Korea Electrotechnol. Res. Inst., Changwon, South Korea
Abstract :
Self-injection mechanisms of plasma electrons in the self-modulated laser wakefield acceleration (SM-LWFA) are investigated. Two-dimensional (2-D) particle-in-cell (PIC) simulations show that a significant amount of plasma electrons can be self-injected into the acceleration phase of a laser wakefield by a dynamic increase of the wake wavelength in the longitudinal direction. In addition, a merging of the wake wave is observed and a large amount of electrons are self-injected to high energies. In this paper, injection phenomena are studied with 2-D simulations and a brief explanation of a new self-injection mechanism is presented.
Keywords :
electron accelerators; particle beam injection; plasma light propagation; plasma simulation; wakefield accelerators; acceleration phase; dynamic wake wavelength increase; injection phenomena; laser wakefield; longitudinal direction; plasma electron self-injection; self-modulated laser wakefield acceleration; two-dimensional particle-in-cell simulations; wake wave evolution; Acceleration; Electron accelerators; Laser transitions; Optical pulse generation; Optical pulses; Plasma accelerators; Plasma density; Plasma simulation; Plasma waves; Pulse modulation;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1288697
