Controllable Laser Ion Acceleration

24th International Laser Physics Workshop

Kawata, S.^1 ; Kamiyama, D.^1 ; Ohtake, Y.^1 ; Takano, M.^1 ; Barada, D.^1 ; Kong, Q.^2 ; Wang, P.X.^2 ; Gu, Y.J.^3 ; Wang, W.M.^4,5 ; Limpouch, J.^6 ; Andreev, A.^7,8 ; Bulanov, S.V.^9,10 ; Sheng, Z.M.^11 ; Klimo, O.^6 ; Psikal, J.^6 ; Ma, Y.Y.^12 ; Li, X.F.^2 ; Yu, Q.S.^2

Graduate School of Engineering, Utsunomiya University, Utsunomiya, Japan^1

Institute of Modern Physics, Fudan University, Shanghai, China^2

ELI Beamlines, Institute of Physics, Prague, Czech Republic^3

Institute of Physics, CAS, Beijing, China^4

Forschungszentrum Juelich GmbH, Juelich, Germany^5

Czech Technical University in Prague, Prague, Czech Republic^6

Max-Born-Institut, Berlin, Germany^7

Vavilov State Optical Institute, St.-Petersburg, Russia^8

Japan Atomic Energy Research Institute, Kyoto, Japan

(10) A M Prokhorov General Physics Institute, Moscow, Russia

(11) Key Laboratory for Laser Plasmas, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China

(12) Department of Physics, National University of Defense Technology, Changsha, China^9

关键词: Beam collimation;    Critical density;    Ion accelerator;    Ion energy spectrum;    Ion particle energy;    Laser ion acceleration;    Laser-target interaction;    Sub-wavelength structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/691/1/012021/pdf
DOI  :  10.1088/1742-6596/691/1/012021

来源: IOP

【 摘 要 】

In this paper a future laser ion accelerator is discussed to make the laser-based ion accelerator compact and controllable. Especially a collimation device is focused in this paper. The future laser ion accelerator should have an ion source, ion collimators, ion beam bunchers, and ion post acceleration devices [Laser Therapy 22, 103(2013)]: the ion particle energy and the ion energy spectrum are controlled to meet requirements for a future compact laser ion accelerator for ion cancer therapy or for other purposes. The energy efficiency from the laser to ions is improved by using a solid target with a fine sub-wavelength structure or a near-critical density gas plasma. The ion beam collimation is performed by holes behind the solid target or a multi-layered solid target. The control of the ion energy spectrum and the ion particle energy, and the ion beam bunching would be successfully realized by a multistage laser-target interaction.