论文标题
通过控制当前的分散，激光驱动质子在螺旋线圈目标中的同步后激进
Synchronous post-acceleration of laser-driven protons in helical coil targets by controlling the current dispersion
论文作者
论文摘要
由强烈，超短激光脉冲驱动的螺旋线圈靶标的质子加速后，可以通过利用靶向靶向的瞬态电流来增强离子能量。质子的加速度长度可以超过几毫米，加速梯度为GEV/m。如何确保加速电场与质子同步是有效加速后的关键问题。在本文中，我们研究了电场不匹配的当前色散如何影响质子的同步加速度。我们建议使用两阶段螺旋线圈来控制电流色散的方案。使用优化的参数，质子的能量增益可增强4次。而且，通过控制当前的分散体，可以使用100秒激光使用100秒激光（使用Petawatt激光器）达到45 MeV。
Post-acceleration of protons in helical coil targets driven by intense, ultrashort laser pulses can enhance the ion energy by utilizing the transient current originating from the self-discharging of the targets. The acceleration length of the protons can exceed a few millimeters, and the accelerating gradient is in the order of GeV/m. How to ensure the synchronization of the accelerating electric field with the protons is a crucial problem for an efficient post-acceleration. In this paper, we study how the electric field mismatch induced by the current dispersion affects the synchronous acceleration of the protons. We propose a scheme using a two-stage helical coil to control the current dispersion. With optimized parameters, the energy gain of protons is enhanced by 4 times. And it is expected that the proton energy would reach 45 MeV using a hundreds-terawatt laser, or over 100 MeV using a petawatt laser, by controlling the current dispersion.
