Numerical simulation of betatron X-ray emission from laser-produced wakefield accelerated electrons

Yang Zuhua; Zhao Zongqing; Tan Fang; Cao Leifeng; Gu Yuqiu; Xiao Shali; Yan Yonghong; Yu Jinqing; Fan Wei; Qian Feng

doi:10.3788/HPLPB20122408.1851

Volume 24 Issue 08

Nov. 2012

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(08): 1851-1855

Wu Wuming, Wu Huiyun, Wu Yi, et al. Analysis of atmosphere turbulence optical parameter[J]. High Power Laser and Particle Beams, 2012, 24: 2022-2026. doi: 10.3788/HPLPB20122409.2022

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Yang Zuhua, Zhao Zongqing, Tan Fang, et al. Numerical simulation of betatron X-ray emission from laser-produced wakefield accelerated electrons[J]. High Power Laser and Particle Beams, 2012, 24: 1851-1855. doi: 10.3788/HPLPB20122408.1851

Wu Wuming, Wu Huiyun, Wu Yi, et al. Analysis of atmosphere turbulence optical parameter[J]. High Power Laser and Particle Beams, 2012, 24: 2022-2026. doi: 10.3788/HPLPB20122409.2022

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Numerical simulation of betatron X-ray emission from laser-produced wakefield accelerated electrons

doi: 10.3788/HPLPB20122408.1851

1.
College of Optoelectronic Engineering,Chongqing University,Chongqing 400030,China; 2.Research Center of Laser Fusion,CAEP,P.O.Box 919-986-6,Mianyang 621900,China

Received Date: 2012-03-14
Publish Date: 2012-08-15

Abstract

Abstract

To find a solution for the high brightness, ultra-short pulse X-ray source, the betatron X-ray mechanism was studied. It is based on the interactions which generate the laser wake field acceleration (LWFA), between the ultra-intense short laser and the plasma. These accelerated electrons make betatron oscillations in the transverse fields of the bubble and emit high brightness and ultra-short X-ray pulses (about fs). Also, this kind of source has the advantages of small size, low cost. The numerical calculations of the emission of the betatron X-rays were carried out with 2D-PIC simulations and the data processing software. Synchrotron spectra with critical energy of 3 keV and 10 keV which are radiated by the lower energy electrons (about 100 MeV) and the higher energy electrons (about 170 MeV) respectively, are reported and the emission is confined to a small angle of about 8 mrad, which has a good agreement with the theoretical results.
- laserwakefieldacceleration,
- betatronx-ray,
- bubble,
- synchrotronspectra,
- picsimulation

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