Temporal characterization of ultrashort linearly chirped electron bunches generated from a laser wakefield accelerator

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/108213

Title:	Temporal characterization of ultrashort linearly chirped electron bunches generated from a laser wakefield accelerator
Authors:	白植豪;Zhang, C. J.;Hua, J. F.;Wan, Y.;Guo, B.;Pai, C.-H.;Wu, Y. P.;Li, F.;Chu, H.-H.;Gu, Y. Q.;Mori, W. B.;Joshi, C.;Wang, J.;Lu, W.
Contributors:	理學院物理學系
Keywords:	Chirp;Dipoles;Electric fields;Electrons;Energy spectra;Lasers;PARTICLE ACCELERATORS;Particle in cell technique
Date:	2016-06-01
Issue Date:	2026-04-23 14:39:20 (UTC+8)
Publisher:	College Park: American Physical Society
Abstract:	摘要： A new method for diagnosing the temporal characteristics of ultrashort electron bunches with linear energy chirp generated from a laser wakefield accelerator is described. When the ionization-injected bunch interacts with the back of the drive laser, it is deflected and stretched along the direction of the electric field of the laser. Upon exiting the plasma, if the bunch goes through a narrow slit in front of the dipole magnet that disperses the electrons in the plane of the laser polarization, it can form a series of bunchlets that have different energies but are separated by half a laser wavelength. Since only the electrons that are undeflected by the laser go through the slit, the energy spectrum of the bunch is modulated. By analyzing the modulated energy spectrum, the shots where the bunch has a linear energy chirp can be recognized. Consequently, the energy chirp and beam current profile of those bunches can be reconstructed. This method is demonstrated through particle-in-cell simulations and experiment. 出版者： College Park: American Physical Society 出版日期： 2016-06-01 出處： Physical review. Accelerators and beams, 2016-06, Vol.19 (6), p.062802, Article 062802 資源來源： ProQuest 版權： 2016. This work is licensed under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. 識別號： ISSN: 2469-9888 識別號： EISSN: 2469-9888 識別號： DOI: 10.1103/PhysRevAccelBeams.19.062802
Appears in Collections:	[Department of Physics] journal & Dissertation

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