标题： 激光驱动的高能质子束的方向和发散控制使用盘状螺线管靶 显示英文标题

标题： Direction and divergence control of laser-driven energetic proton beam using a disk-solenoid target

摘要： 一种用于控制由强激光脉冲驱动的高能质子束方向的方案被提出。 模拟显示，通过一个亚皮秒激光脉冲与由一个带有螺线管线圈的薄固态密度盘状靶材相互作用，可以产生一个精确定向且准直的质子束。 发现诱导出两个部分重叠的鞘层场。 因此，加速的质子沿着螺线管的轴线方向被引导，其发散角也由于重叠的鞘层场而减小。 因此，可以通过操纵螺线管参数来控制质子特性。 这种高度定向和准直的高能质子在高能量密度以及医学科学中是有用的。 显示英文摘要

摘要： A scheme for controlling the direction of energetic proton beam driven by intense laser pulse is proposed. Simulations show that a precisely directed and collimated proton bunch can be produced by a sub-picosecond laser pulse interacting with a target consisting of a thin solid-density disk foil with a solenoid coil attached to its back at the desired angle. It is found that two partially overlapping sheath fields are induced. As a result, the accelerated protons are directed parallel to the axis of the solenoid, and their spread angle is also reduced by the overlapping sheath fields. The proton properties can thus be controlled by manipulating the solenoid parameters. Such highly directional and collimated energetic protons are useful in the high-energy-density as well as medical sciences.