论文标题
由于波动辐射中的量子波动，对电子束的能量扩散的首次测量
First measurement of energy diffusion in an electron beam due to quantum fluctuations in the undulator radiation
论文作者
论文摘要
我们介绍了由于欧洲X射线自由电子激光器上的开管辐射的量子波动而导致的切片能量扩散生长的测量值。该方法使用了最近安装的诊断韦克场结构，该结构能够测量硬X射线悬挂器之后的纵向相空间。首次测量量子扩散在波动器中的效果，结果与理论预测非常吻合。
We present measurements of slice energy spread growth due to quantum fluctuations of the undulator radiation at the European X-Ray Free-Electron Laser. The method uses a recently installed diagnostic wakefield structure, which enables measurements of the longitudinal phase space after the hard X-ray undulator. The effect of quantum diffusion in the undulator is measured for the first time, and the results are in good agreement with theoretical predictions.
