近临界密度靶中利用雪犁场加速离子束的局限性
Limitations of post accelerating ion beams using the snowplow field in a near-critical density target
AI总结：
本文探究级联离子加速方案，讨论将离子束加速扩展至相对论能量的可能性，指出激光驱动离子加速受带电粒子与强电磁场相互作用基本特性限制，该方案或为实现相对论能量提供途径。
AI中文摘要：
相对论强度下的激光与物质相互作用是多PW激光装置几乎所有科学应用的核心。其中，激光驱动离子加速的进展使该相互作用更贴近从材料科学到生物医学研究等多种应用。关于离子加速最重要的问题之一是如何获得具有相对论能量的高电荷离子束。提高激光能量和强度通常会因带电粒子与强电磁场相互作用的基本特性，对可实现的最大离子能量造成诸多限制。在级联激光等离子体电子加速取得进展后，级联离子加速或可为实现相对论能量提供途径。本文探究了该方案，并讨论了将离子束加速扩展至相对论能量的可能性。
英文摘要：
Laser-matter interaction at relativistic intensities is central to almost every scientific case for multi-PW laser facilities. In particular, the progress in laser-driven ion acceleration brings this interaction closer to multiple applications, ranging from material science to biomedical research. One of the most important questions regarding ion acceleration is how to obtain high charge ion beams with relativistic energies. Increasing laser energy and intensity usually leads to a number of limitations on maximum achievable ion energies rooted in the fundamental properties of charged particle interaction with strong electromagnetic fields. Following advances in staged laser-plasma electron acceleration, staged ion acceleration could offer a path to relativistic energies. Here, such scheme is explored and the possibility of scaling the acceleration of ion beams to relativistic energies is discussed.
