Laser acceleration of protons using multi-ion plasma gaseous targets

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105142

Title:	Laser acceleration of protons using multi-ion plasma gaseous targets
Authors:	陳仕宏;Liu, Tung-Chang;Shao, Xi;Liu, Chuan-Sheng;Eliasson, Bengt;Hill, W T;Wang, Jyhpyng;Chen, Shih-Hung
Contributors:	理學院物理學系
Keywords:	Acceleration;Carbon;Carbon dioxide;Carbon dioxide lasers;Circular polarization;Density;Laser beams;laser-plasma acceleration of electrons and ions;laser-plasma interactions;Lasers;PARTICLE ACCELERATORS;particle-in-cell method;Physics;Plasma (physics);Proton beams;Pulse duration;Radiation pressure;relativistic plasmas;Sapphire;Titanium
Date:	2015-02-04
Issue Date:	2026-04-23 12:08:12 (UTC+8)
Publisher:	Bristol: IOP Publishing
Abstract:	摘要： We present a theoretical and numerical study of a novel acceleration scheme by applying a combination of laser radiation pressure and shielded Coulomb repulsion in laser acceleration of protons in multi-species gaseous targets. By using a circularly polarized CO2 laser pulse with a wavelength of 10 m-much greater than that of a Ti: Sapphire laser-the critical density is significantly reduced, and a high-pressure gaseous target can be used to achieve an overdense plasma. This gives us a larger degree of freedom in selecting the target compounds or mixtures, as well as their density and thickness profiles. By impinging such a laser beam on a carbon-hydrogen target, the gaseous target is first compressed and accelerated by radiation pressure until the electron layer disrupts, after which the protons are further accelerated by the electron-shielded carbon ion layer. An 80 MeV quasi-monoenergetic proton beam can be generated using a half-sine shaped laser beam with a peak power of 70 TW and a pulse duration of 150 wave periods. 其他題名： NJP 其他題名： New J. Phys 出版者： Bristol: IOP Publishing 出版日期： 2015-02-04 出處： New Journal of Physics, 2015-02, Vol.17 (2), p.23018-9 資源來源： Publicly Available Content Database (Proquest) 版權： 2015 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft 版權： 2015. This work is published 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: 1367-2630 識別號： EISSN: 1367-2630 識別號： DOI: 10.1088/1367-2630/17/2/023018 識別號： CODEN: NJOPFM
Appears in Collections:	[Department of Physics] journal & Dissertation

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