中国物理B ›› 2010, Vol. 19 ›› Issue (6): 64210-064210.doi: 10.1088/1674-1056/19/6/064210

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Electron trajectory evaluation in laser-plasma interaction for effective output beam

H.Afarideh1, P.Zobdeh2, R.Sadighi-Bonabi3   

  1. (1)Department of Physics, Amirkabir University of Technology, Tehran, Iran; (2)Department of Physics, Qom Branch Islamic Azad University, Qom, Iran; (3)Department of Physics, Sharif University of Technology, 11365-9567, Tehran, Iran
  • 收稿日期:2008-04-04 出版日期:2010-06-15 发布日期:2010-06-15

Electron trajectory evaluation in laser-plasma interaction for effective output beam

P. Zobdeha)†, R. Sadighi-Bonabib), and H. Afaridehc)   

  1. a Department of Physics, Qom Branch Islamic Azad University, Qom, Iran; b Department of Physics, Sharif University of Technology, 11365-9567, Tehran, Iran; c Department of Physics, Amirkabir University of Technology, Tehran, Iran
  • Received:2008-04-04 Online:2010-06-15 Published:2010-06-15

摘要: Using the ellipsoidal cavity model, the quasi-monoenergetic electron output beam in laser-plasma interaction is described. By the cavity regime the quality of electron beam is improved in comparison with those generated from other methods such as periodic plasma wave field, spheroidal cavity regime and plasma channel guided acceleration. Trajectory of electron motion is described as hyperbolic, parabolic or elliptic paths. We find that the self-generated electron bunch has a smaller energy width and more effective gain in energy spectrum. Initial condition for the ellipsoidal cavity is determined by laser-plasma parameters. The electron trajectory is influenced by its position, energy and cavity electrostatic potential.

Abstract: Using the ellipsoidal cavity model, the quasi-monoenergetic electron output beam in laser-plasma interaction is described. By the cavity regime the quality of electron beam is improved in comparison with those generated from other methods such as periodic plasma wave field, spheroidal cavity regime and plasma channel guided acceleration. Trajectory of electron motion is described as hyperbolic, parabolic or elliptic paths. We find that the self-generated electron bunch has a smaller energy width and more effective gain in energy spectrum. Initial condition for the ellipsoidal cavity is determined by laser-plasma parameters. The electron trajectory is influenced by its position, energy and cavity electrostatic potential.

Key words: electron, intense laser, plasma accelerator, laser wake field, bubble regime, wave breaking

中图分类号:  (Laser-plasma acceleration of electrons and ions)

  • 52.38.Kd
52.50.Jm (Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.)) 29.20.-c (Accelerators) 29.27.Eg (Beam handling; beam transport) 41.75.Fr (Electron and positron beams)