Systematic studies for AWAKE Run 2

唤醒是世界上第一个质子驱动的等离子体尾波场加速实验。它利用欧洲核子研究中心SPS的400GeV质子束作为驱动束，激发幅度为~GV/m的等离子体尾场(比常规加速器高出一个数量级)，并在一个密度为(1-10)×1014 cm-3的10米长的等离子体中，将外部注入的10-20 MeV电子束加速到几个GeV。目前的唤醒实验，即所谓的RUN 1，最近取得了重大突破，证明了长质子束稳定且可重复的种子自调制不稳定性(SSM)，并成功地在单级加速中将电子束加速到2GeV。这种新颖的加速技术将为未来紧凑型机器走向能源前沿铺平道路。基于觉醒运行1的巨大成功，运行2(唤醒升级计划)旨在为未来的应用提供高质量的电子束。在这个项目中，这名学生将由来自曼彻斯特大学、斯特拉斯克莱德大学和利物浦大学的经验丰富的科学家共同指导，他将在那里注册博士学位。他将在理解电子种子不稳定性、电子注入、陷阱和加速过程方面发挥主导作用。此外，他还将致力于研究新的仪器，以充分表征唤醒的光束。该学生将协助采集数据和分析实验数据，并交叉检查分析模型和模拟结果，进一步优化实验设置。研究结果将对进一步的唤醒实验设计产生重大影响。他或她还将参加唤醒合作会议，并在重要的国际会议和讲习班上报告结果。

AWAKE is the world first proton-driven plasma wakefield acceleration experiment. It utilizes 400 GeV proton bunch from the CERN SPS as the drive beam, excites the plasma wakefield with amplitude of ~ GV/m (which are orders of magnitude higher than conventional accelerators) and accelerates an externally injected 10-20 MeV electron bunch up to several GeVs in a 10 m long plasma with density of (1-10)x1014cm-3. The current AWAKE experiment, so-called Run 1 has recently made great breakthrough and demonstrated stable and reproducible seeded self-modulation instability (SSM) for a long proton bunch and successfully accelerated the electron beam up to 2 GeV in a single stage of acceleration. This novel acceleration technology will pave the way for future compact machines towards the energy frontier.Based on the great success of AWAKE Run 1, Run 2 (the AWAKE upgrade plan) aims for achieving high quality electron beam for future applications. For this project, the student will be co-supervised by experienced scientists from the University of Manchester, University of Strathclyde and University of Liverpool where he will be registered for his PhD. He will be taking a leading role in understanding the electron seeding instability, electron injection, trapping and acceleration processes. In addition, he will contribute to studies into novel instrumentation that will fully characterize the AWAKE beams.The student will assist in data taking and analyze the experimental data and cross check the analytical models and simulation results and further optimize the experiment setup. The research results will have great impact to the further AWAKE experiment design. He or she will also attend the AWAKE Collaboration meetings and report the results at important international conferences and workshops.