靶后鞘层机制加速离子的研究进展  

Research Progress of Scheme of Target-Normal Sheath Acceleration Ion

作　　者：王凤超[1] 

机构地区：[1]上海应用技术学院理学院,上海201418

出　　处：《激光与光电子学进展》2014年第12期77-86,共10页Laser & Optoelectronics Progress

基　　金：上海高校选拔培养优秀青年教师科研专项基金(yyy10043);光电精密检测研究平台建设项目(10210Q140005)

摘　　要：在超短强激光与固体薄膜靶相互作用产生高能离子的研究领域内,由于靶后静电场持续时间较长、离子具有较好的准直性及单能性,靶后鞘层加速(TNSA)机制一直都是研究重点。介绍了TNSA机制的理论模型、近期的实验结果以及模拟验证,并系统讨论了通过结构优化得到高质量离子束的方案,最后综述了近期国内外利用TNSA机制加速离子的研究进展。In the interaction of ultra-short and ultra-intense laser pulses with the film target, the target-normal sheath acceleration （TNSA） is considered as an efficient acceleration scheme to gain energetic ions and is studied intensively. The reason is that the space-charge field on the backside of the target is much more intense and longer lasting, so the acceleration ions have a good collimation and mono-energetic spectrum. The theoretical model, experimental results and simulation are introduced, then the optimal target structure to generate high quality ion beams is analyzed, and finally the progress of the TNSA at home and aboard is summarized.

关 键 词：靶后鞘层加速 离子加速 复杂结构靶 联鞘层加速 密度梯度 

分 类 号：O437[机械工程—光学工程]