Energy Evaluation of Mono‐Energetic Electron Beam Produced by Ellipsoid Cavity Model in the Bubble Regime

Abstract

The electron acceleration in the bubble regime is considered during the laser-plasma interaction. The PIC and experimental results show that the obtained ellipsoid cavity model is more consistent than the spherical model. We prove the fields inside the cavity depend linearly on the coordinates and the spherical cavity is a special case of the ellipsoid model. The quasi mono-energetic electrons output beam tracing the laser plasma can be more appropriately described with this model.

Accurate monoenergetic electron parameters of laser wakefield in a bubble model

“…They have explained this obvious disagreement as a result of the spherical assumption of the bubble (3,4). In fact, this was mentioned in the later works (5,6).…”

“…In this work, we improve the previous models and resolve the ambiguity in the shape of the potential by correcting equations in the previous spherical model (3,4) and the ellipsoidal model (6,7).…”

Excitation of upper‐hybrid plasma wake wave by a low‐frequency extraordinary electromagnetic wave

“…Wake field generation for the purpose of particle acceleration has been widely studied experimentally, analytically and using simulations. [1,[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] Shukla investigated analytically the generation of wake fields by circularly [22] and elliptically [23] polarized laser pulses in magnetoplasma which is found that the presence of an external magnetic field can significantly enhance the strength of plasma wake waves. The effect of magnetic field on the wake field generation by laser pulses in R and L-modes has been also investigated in Reference 24.…”

Self-focusing up to the incident laser wavelength by an appropriate density ramp

“…Resent advances in ultra-intense short-pulse lasers and their numerous applications stimulated the research activities in this field such as generation of high-energy electron and ion beams and their acceleration (Leemans et al, 2006;Láska et al, 2006;Lihua et al, 2004;Geddes, 2005;Hoffmann et al, 2005;Schlenvoigt et al, 2008;Xie et al, 2009;Zhou et al, 2007), monoenergetic electron beam (Fature et al, 2004;Singh et al, 2008;Sadighi-Bonabi et al, 2009a, 2009b, 2010a, 2010b, monoenergetic ion beam generation (Hegelich et al, 2006), X-ray emission and X-ray lasers (Zhang et al, 1998), harmonic generation (Butylkin & Fedorova, 1994), fusion with the fast ignition scheme (Lalousis & Hora, 1983;Hora, 2004Hora, , 2009Hora et al, 2009;Ghoranneviss et al, 2008;Yazdani et al, 2009;Sadighi-Bonabi et al, 2010c, 2010d. These lasers are also used in the transmutation of hazardous radioactive wastes to valuable nuclear medicine (Sadighi-Bonabi & Kokabi, 2006;Sadighi-Bonabi et al, 2010e;Sadighi & Sadighi-Bonabi, 2010).…”