Suppression of multiple ion bunches and generation of monoenergetic ion beams in laser foil-plasma

doi:10.1088/1674-1056/20/1/015206

Abstract In one-dimensional particle-in-cell simulations, this paper shows that the formation of multiple ion bunches is disadvantageous to the generation of monoenergetic ion beams and can be suppressed by choosing an optimum target thickness in the radiation pressure acceleration mechanism by a circularly polarised laser pulse. As the laser pulse becomes intense, the optimum target thickness obtained by a non-relativistic treatment is no longer adequate. Considering the relativistic Doppler-shifted pressure, it proposes a relativistic formulation to determine the optimum target thickness. The theoretical predictions agree with the simulation results well. The model is also valid for two-dimensional cases. The accelerated ion beams can be compelled to be more stable by choosing the optimum target thickness when they exhibit some unstable behaviours.

Keywords: interaction of ultrastrong laser pulse and plasma radiation pressure acceleration optimum target thickness

Received: 18 June 2010
Revised: 12 July 2010
Accepted manuscript online:

PACS:	52.38.Kd	(Laser-plasma acceleration of electrons and ions)
	52.65.Rr	(Particle-in-cell method)
	52.27.Ny	(Relativistic plasmas)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10875015, 10725521 and 10834008), and the National Basic Research Program of China (Grant No. 2006CB806004).

Cite this article:

Zhang Shan(张闪), Xie Bai-Song(谢柏松), Hong Xue-Ren(洪学仁), Wu Hai-Cheng(吴海城), Aimierding Aimidula(艾米尔丁·艾米都拉), Zhao Xue-Yan(赵学燕), and Liu Ming-Ping(刘明萍) Suppression of multiple ion bunches and generation of monoenergetic ion beams in laser foil-plasma 2011 Chin. Phys. B 20 015206

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[1]

Generation of high quality ion beams through the stable radiation pressure acceleration of the near critical density target
Xue-Ren Hong(洪学仁), Wei-Jun Zhou(周伟军), Bai-Song Xie(谢柏松), Yang Yang(杨阳), Li Wang(王莉), Jian-Min Tian(田建民), Rong-An Tang(唐荣安), Wen-Shan Duan(段文山). Chin. Phys. B, 2017, 26(6): 065203.

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Suppression of multiple ion bunches and generation of monoenergetic ion beams in laser foil-plasma

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