Kleindienst, Raphael: Radio frequency characterization of superconductors for particle acceleratorsCharakterisierung der Hochfrequenzeigenschaften von Supraleitern für Teilchenbeschleuniger. 2017
Inhalt
- Abstract
- Zusammenfassung
- Acknowledgements
- Contents
- 1 Introduction
- 2 Superconducting Radiofrequency Cavities
- 3 Characterization of Superconducting Samples
- 3.1 TE host cavities
- 3.2 Sapphire Loaded Cavity
- 3.3 Hemispherical cavity
- 3.4 Quadrupole Resonator
- 3.5 Comparison of SRF Sample Testing Experiments
- 4 RF Design of the Quadrupole Resonator
- 5 Production and Surface Treatments
- 6 Experimental Setup
- 7 Commissioning of the Quadrupole Resonator
- 8 Characterization of Niobium Samples
- 8.1 Temperature Dependence of the Surface Resistance
- 8.2 Penetration Depth Measurement
- 8.3 Trapped Flux Studies
- 8.4 Critical Field Measurements
- 9 High RF-Field Studies
- 9.1 Comparing Surface Resistance Measurements between Systems
- 9.2 Surface-Impurity Model
- 9.3 Modified Density of States Model
- 10 Summary and Outlook
- Appendix A Surface Impedance
- Appendix B Measurement Resolution and Bias
- Appendix C Geophone
- Appendix D Calculating the Power Dissipation for various Cavity Types
- Bibliography