FEL装置中束流位置测量系统的设计及THz驱动条纹相机的相关研究

声明

List of Tables

List of Figures

List of Abbreviations and Symbols

1 Introduction

1．1 Particle accelerators

1．2 Beam diagnostics in particle accelerators

1．2．1 Main beam parameters

1．2．2 Beam position monitors

1．2．3 Bunch length measurement

1．3 Outline the dissertation

2 Introduction to BPM and THz driven deflector based streak camera

2．1 beam position monitors

2．1．1 Button BPM

2．1．2 Stripline BPM

2．1．3 Cavity BPM

2．1．4 Resonant stripline BPM

2．2 THz driven deflector based streak camera

2．2．1 The motivation of developing THz driven streak camera

2．2．2 Recent progress on THz driven streak camera

3 BPM system for the IR-FEL project

3．1 Design of the BPM system

3．1．1 Button BPM

3．1．2 Resonant stripline BPM

3．1．3 electronics system

3．1．4 Evaluation of position resolution

3．2 Laboratory tests of BPM prototypes

3．2．1 Button BPM

3．2．2 Resonant stripline BPM

3．3 Online measuremellt with button BPM

3．4 Summary

4 THz driven deflector based streak camera

4．1 Three potential designs of THz deflector

4．1．1 ISRR

4．1．2 ISRR array

4．1．3 Dielectric tube

4．1．4 Comparison between these three THz deflectors

4．2 THz streaking experiment for 35MeV electron beam with ISRR structure

4．2．1 Simulation results

4．2．2 Experiment results and discussion

4．2．3 Conclusion

4．3 Analysis of multipole fields

4．3．1 ISRR and ISRR array structures

4．3．2 Dielec tube structure

4．3．3 Comparison between these three THz deflectors

4．4 0ptimization of these three THz denflectors

4．4．1 0ptimization of ISRR

4．4．2 optimization of ISRR array

4．4．3 Optimization of Dielectric tube

4．4．4 Conclusion

4．5 Summary

5 Conclusion

Bibliography

Acknowledgements

Publications

摘要