Extreme Light Scientific and Socio-Economic Outlook

Proton acceleration with light pressure and wakefield

29 Nov 2016, 13:55

25m

Extreme Light and Applications Extreme Light and Applications

Speaker

Prof. Baifei Shen (State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences)

Description

We discuss proton acceleration with 10PW lasers. In 2001, we proposed proton acceleration with light pressure for the first time [1]. Then in 2007, we explained that light pressure acceleration is actually multistaged acceleration of collisionless electrostatic shock driven by the laser pressure [2, 3]. However, the method of light pressure is hard to support proton acceleration of energy larger than 10 GeV. Therefore, we proposed to acceleration proton with laser driven wakefiled [4]. The main problem for proton acceleration with wakefield is the transverse defocusing force preventing persistent acceleration. To solve this problem we proposed to use vortex to drive a wakefield of an electron cylinder in the middle [5]. Recent experiment with clusters is also discussed.

[1] Baifei Shen et al., PHYSICAL REVIEW E 64 056406
[2] Xiaomei Zhang, Baifei Shen et al., Phys. Plasmas 14, 073101 (2007)
[3] Xiaomei Zhang, Baifei Shen et al., Phys. Plasmas 14, 123108 (2007)
[4] Baifei Shen, Xiaomei Zhang et al., Phys. Rev. E，055402（2007）
[5] Xiaomei Zhang, Baifei Shen et al. New J. Phys. 16, 123051(2014)

Presentation materials

6 SHEN B.pdf