论文标题
呼吸运行中贝塔龙辐射的仿真研究2实验
Simulation study of betatron radiation in AWAKE Run 2 experiment
论文作者
论文摘要
聚焦等离子体柱的β辐射的光谱可以作为血浆Wakefield加速实验（如醒着）的强大非侵入性束诊断方法。在本文中，研究了径向尺寸不匹配和离轴注射对梁动力学的影响，以及证人电子束在准线性质子proton驱动的等离子体韦克菲尔德中发出的betatron辐射的光谱特征。结果表明，临界Betatron光子能量和整体光子角分布的演变可以有效揭示证人电子束的初始注射条件。还讨论了在质子自调制阶段的诊断2中使用这种方法进行诊断2的诊断2。
The spectroscopy of betatron radiation from the focusing plasma column can work as a powerful non-invasive beam diagnostic method for plasma wakefield acceleration experiments such as the AWAKE. In this paper, the effects of radial size mismatch and off-axis injection on the beam dynamics, as well as the spectral features of the betatron radiation emitted by the witness electron bunch in the quasi-linear proton-driven plasma wakefield are studied. It is shown that the evolution of the critical betatron photon energy and the overall photon angular distribution can effectively reveal the initial injection conditions of the witness electron bunch. The possibility of using this method for the diagnostics of the seed electron bunch in the proton self-modulation stage of AWAKE Run 2 is also discussed.
