An ion beam has a unique feature to deposit its main energy inside a human body to kill cancer cells or inside material. In this paper, a future intense laser ion accelerator is discussed to make the laser-based ion accelerator compact and controllable. The issues in the laser ion accelerator include the energy efficiency from the laser to the ions, the ion beam collimation, the ion energy spectrum control, the ion beam bunching, and the ion particle energy control. The energy efficiency from the laser to ions is improved by using a solid target with a fine sub-wavelength structure. The ion beam collimation is performed by larger holes behind the solid target. An ion beam bunching and a post-acceleration are successfully realized by a multi-stage laser-target interaction. The controllable laser ion acceleration would become viable based on the study discussed in this paper. In this paper, we present 3D PIC simulation results for the controllability of laser ion acceleration system.

离子束具有独特的功能，可以将其主要能量沉积在人体内部以杀死癌细胞或内部物质。在本文中，讨论了未来的强激光离子加速器，以使基于激光的离子加速器紧凑且可控。激光离子加速器中的问题包括从激光到离子的能量效率，离子束准直，离子能谱控制，离子束聚束和离子粒子能量控制。通过使用具有精细亚波长结构的固体靶，可以提高从激光到离子的能量效率。离子束准直由固体靶后面的较大孔执行。通过多级激光-目标相互作用，成功实现了离子束聚束和后加速。基于本文讨论的研究，可控的激光离子加速度将变得可行。在本文中，我们介绍了3D PIC仿真结果，以说明激光离子加速系统的可控制性。