论文标题
血浆中相对论质子束的自调的控制生长
Controlled Growth of the Self-Modulation of a Relativistic Proton Bunch in Plasma
论文作者
论文摘要
在等离子体中传播的长，狭窄，相对论的粒子束受到自调节（SM）的不稳定性。我们证明，质子束的SM可以由前面的电子束驱动的韦克菲尔德（Wakefields）播种。 SM定时可重复性和控制位于调制期的一小部分。使用这种播种方法，我们用电子束的电荷独立控制种子尾菲尔德的振幅，并用质子束的电荷来控制SM的生长速度。与不稳定情况相比，播种导致韦克菲尔德的生长更大。
A long, narrow, relativistic charged particle bunch propagating in plasma is subject to the self-modulation (SM) instability. We show that SM of a proton bunch can be seeded by the wakefields driven by a preceding electron bunch. SM timing reproducibility and control are at the level of a small fraction of the modulation period. With this seeding method, we independently control the amplitude of the seed wakefields with the charge of the electron bunch and the growth rate of SM with the charge of the proton bunch. Seeding leads to larger growth of the wakefields than in the instability case.
