Advanced diagnostics for AWAKE Run 2 Electron Beams

位于欧洲核子研究中心的先进韦克菲尔德实验（AWAKE）是世界上唯一一个实验质子驱动等离子体加速器的实验室。等离子体加速器是一种新型加速器，与传统加速器相比，它有可能实现非常高的加速梯度。这可以导致构建更紧凑和负担得起的加速器。实验的一个重要部分是在加速过程中保持见证电子束的质量。因此，有必要能够测量见证光束的发射度和束长等光束特性。测量电子束发射度的一种方法是利用电子横向振荡发出的电子辐射。为了测量束长，我们可以使用切伦科夫衍射辐射（ChDR），该辐射是由带电粒子在近距离通过比介质内光的相速度更快的介质时发射的。该项目的目的是为设计和建造作为非侵入性诊断工具的betatron辐射做出贡献，以测量见证光束发射度。此外，为了继续和支持ChDR作为束长度的非侵入性诊断工具的工作，已经由Can Davut博士设计并实现到AWAKE中。该项目包括在欧洲核子研究中心至少1年至2.5年的时间。

The Advanced WAKefield Experiment (AWAKE) located at CERN is the only laboratory in the world to experiment with a proton-driven plasma accelerator. Plasma accelerators are a type of novel accelerator that has the potential to achieve very high accelerating gradients relative to conventional accelerators. This can lead to the build of more compact and affordable accelerators.An important part of the experiment is preserving the witness electron beam quality as it's accelerated. Therefore, it is necessary to be able to measure the beam characteristics such as the emittance and bunch length of the witness beam.One method in measuring the beam emittance is from betatron radiation emitted from the transverse oscillations of electrons. For measuring the bunch length we can use Cherenkov Diffraction Radiation (ChDR) emitted from charged particles passing by, in close vicinity, a medium faster than the phase velocity of light within the medium.The aim of the project is to contribute towards the design and build of betatron radiation as a non-invasive diagnostic tool to measure the witness beam emittance. Also, to continue and support the work on ChDR as a non-invasive diagnostic tool for bunch length, already designed and implemented into AWAKE by Dr. Can Davut.The project includes some time at CERN for at least 1 year and up to 2.5 years.