论文标题
Terawatt Attsond X射线源由等离子体加速器驱动
Terawatt attosecond X-ray source driven by a plasma accelerator
论文作者
论文摘要
等离子体加速器可以生成超高亮度电子梁，该电子梁为带有较小物理足迹和属性的光源打开了传统加速器技术无法实现的光源。在本文中，我们表明来自等离子体Wakefield加速器（PWFAS）的电子束可以产生几个可行的可调式可调式X射线脉冲，具有TW峰值功率和数十个峰值的持续时间，比较强大，更短，更稳定的稳定性，并且比State-Art The-Art The-Art The-Art The-Art The-Art The-Art X-Ray Electon Electon Lasers（X-Ray Lasers）（Xfels）更具稳定性。这样的光源将显着增强实验性研究超快时间尺度上电子动力学的能力，这在多个科学领域具有广泛的影响。这种方法中的X射线发射不是从噪声开始，而是由近距离（MA）近距离的attosecond持续时间的电流电子束的相干辐射驱动的。这放松了限制性公差，这些公差阻碍了到目前为止使用等离子体加速器作为连贯的X射线驱动器的进步，这为高级加速器光源应用提供了新的范式。
Plasma accelerators can generate ultra high brightness electron beams which open the door to light sources with smaller physical footprint and properties un-achievable with conventional accelerator technology. In this paper we show that electron beams from Plasma WakeField Accelerators (PWFAs) can generate few-cycle coherent tunable soft X-ray pulses with TW peak power and a duration of tens of attoseconds, an order of magnitude more powerful, shorter and with better stability than state-of-the-art X-ray Free Electron Lasers (XFELs). Such a light source would significantly enhance the ability to experimentally investigate electron dynamics on ultrafast timescales, having broad-ranging impact across multiple scientific fields. Rather than starting from noise as in typical XFELs, the X-rays emission in this approach is driven by coherent radiation from a pre-bunched, near Mega Ampere (MA) current electron beam of attosecond duration. This relaxes the restrictive tolerances which have hindered progress towards utilizing plasma accelerators as coherent X-ray drivers thus far, presenting a new paradigm for advanced-accelerator light source applications.
