Monoenergetic electron parameters in a spheroid bubble model

doi:10.1088/1674-1056/22/2/025203

中国物理B ›› 2013, Vol. 22 ›› Issue (2): 25203-025203.doi: 10.1088/1674-1056/22/2/025203

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

Monoenergetic electron parameters in a spheroid bubble model

H. Sattarian^a, Sh. Rahmatallahpur^b, T. Tohidi^c

a Maraghe Branch, Physics Department, Islamic Azad University, Maragheh, Iran;
b Bonab Branch, Physics Department, Islamic Azad University, Bonab, Iran;
c Department of Physics, Azarbaijan University of Tarbiat Moallem, Tabriz, Iran

收稿日期:2011-05-11 修回日期:2012-08-15 出版日期:2013-01-01 发布日期:2013-01-01

Monoenergetic electron parameters in a spheroid bubble model

H. Sattarian^a, Sh. Rahmatallahpur^b, T. Tohidi^c

a Maraghe Branch, Physics Department, Islamic Azad University, Maragheh, Iran;
b Bonab Branch, Physics Department, Islamic Azad University, Bonab, Iran;
c Department of Physics, Azarbaijan University of Tarbiat Moallem, Tabriz, Iran

Received:2011-05-11 Revised:2012-08-15 Online:2013-01-01 Published:2013-01-01
Contact: H. Sattarian E-mail:hsattarian@yahoo.com; rahmatsh@yahoo.com

摘要/Abstract

摘要： A reliable analytical expression for the potential of plasma waves with phase velocities near the speed of light is derived. The presented spheroid cavity model is more consistent than the previous spherical and ellipsoidal models and it explains the mono-energetic electron trajectory more accurately, especially at the relativistic region. The maximum energy of electrons is calculated and it is shown that the maximum energy of the spheroid model is less than that of the spherical model. The electron energy spectrum is also calculated and it is found that the energy distribution ratio of electrons ΔE/E for the spheroid model under the conditions reported here is half that of the spherical model and it is in good agreement with the experimental value in the same conditions. As a result, the quasi-mono-energetic electron output beam interacting with the laser plasma can be more appropriately described with this model.

关键词: quasi-mono-energetic electron bunches, intense laser, plasma accelerator, laser wake field, bubble regime

Abstract: A reliable analytical expression for the potential of plasma waves with phase velocities near the speed of light is derived. The presented spheroid cavity model is more consistent than the previous spherical and ellipsoidal models and it explains the mono-energetic electron trajectory more accurately, especially at the relativistic region. The maximum energy of electrons is calculated and it is shown that the maximum energy of the spheroid model is less than that of the spherical model. The electron energy spectrum is also calculated and it is found that the energy distribution ratio of electrons ΔE/E for the spheroid model under the conditions reported here is half that of the spherical model and it is in good agreement with the experimental value in the same conditions. As a result, the quasi-mono-energetic electron output beam interacting with the laser plasma can be more appropriately described with this model.

Key words: quasi-mono-energetic electron bunches, intense laser, plasma accelerator, laser wake field, bubble regime

中图分类号: (Laser-plasma interactions)

52.38.-r

41.75.Jv (Laser-driven acceleration?) 42.62.-b (Laser applications) 41.75.Lx (Other advanced accelerator concepts)

H. Sattarian, Sh. Rahmatallahpur, T. Tohidi. Monoenergetic electron parameters in a spheroid bubble model[J]. 中国物理B, 2013, 22(2): 25203-025203.

H. Sattarian, Sh. Rahmatallahpur, T. Tohidi. Monoenergetic electron parameters in a spheroid bubble model[J]. Chin. Phys. B, 2013, 22(2): 25203-025203.

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Monoenergetic electron parameters in a spheroid bubble model

Monoenergetic electron parameters in a spheroid bubble model

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