靶形状及等离子体性质对激光驱动离子加速的影响

Influence of Target Shape and Plasma Properties on Laser-driven Ion Acceleration

随着固体激光技术发展以及啁啾脉冲放大技术加持,激光峰值功率得到极大的提高,促进了激光物质相互作用领域的研究并衍生出若干具有很好前景的应用。激光驱动的台面级离子加速器便是其中重要的应用领域之一。激光加速的质子具有源体积小、脉冲时间短和时间分辨高等特点,可以广泛应用于成像、医疗及科研领域,并能有效降低这些领域的相关成本,促进其高效发展。影响获得优质离子束的条件很多,文中从靶形状及与激光作用后形成的等离子体性质角度对近期该研究方向的一些进展进行了总结及展望。

With the development of solid-state laser and the chirped pulse amplification technology,the laser peak power has been greatly increased,which has promoted the research of laser matter interaction and derived applications with good prospects.Compact laser-driven ion accelerators are one of the most important applications.The laser accelerated proton has the characteristics of small source volume,short pulse time and high time resolution,which can be widely used in proton imaging,medical treatment and scientific research fields,and can effectively reduce the related costs in these fields,and promote the efficient development.There are many conditions that affect the obtaining of high-quality ion beam,some recent advances in this field are summarized and prospected from the perspective of target shape and the properties of plasma formed after laser interaction.