论文标题
由血浆中的自调节质子束驱动的韦克菲尔德的实验研究
Experimental Study of Wakefields Driven by a Self-Modulating Proton Bunch in Plasma
论文作者
论文摘要
我们在血浆中自调制过程中由高度相对论的质子束驱动的纵向和横向尾矿进行了实验研究。我们表明，随着种子幅度的增加以及血浆中的质子束电荷，韦克菲尔德的生长和幅度随着种子幅度的增加而增加。我们使用在血浆下游的屏幕上测量的质子束分布的最大半径研究横向韦克场。我们通过外部注入电子并测量其最终能量来研究纵向韦克菲尔德。测量与理论和数值模拟所预测的趋势一致，并验证我们对自我调制发展的理解。实验是在高级韦克菲尔德实验（Awake）的背景下进行的。
We study experimentally the longitudinal and transverse wakefields driven by a highly relativistic proton bunch during self-modulation in plasma. We show that the wakefields' growth and amplitude increase with increasing seed amplitude as well as with the proton bunch charge in the plasma. We study transverse wakefields using the maximum radius of the proton bunch distribution measured on a screen downstream from the plasma. We study longitudinal wakefields by externally injecting electrons and measuring their final energy. Measurements agree with trends predicted by theory and numerical simulations and validate our understanding of the development of self-modulation. Experiments were performed in the context of the Advanced Wakefield Experiment (AWAKE).
