Development of Superconducting Spoke Cavities for High-Velocity Applications

<p>To date, superconducting spoke cavities have been designed, developed, and tested for particle velocities up to β0 ~ 0.6, but there is a growing interest in possible applications of spoke cavities for high-velocity applications. The first task is to explore the design parameter space for low-frequency, high-velocity, single- and double-spoke superconducting cavities in order to determine how each design parameter affects the electromagnetic properties, in particular the surface electromagnetic fields and the shunt impedance. Once an electromagnetically optimized, high-velocity spoke cavity is designed, there are several other characteristics that need to be investigated. These include multipacting scenarios, higher-order mode excitation and suppression, multipole analysis of the accelerating field, and mechanical properties. Finally, the cavity fabrication and testing is performed and evaluated. In this dissertation, we present a detailed account of the full development process for the first high-velocity single-spoke cavity operating at 325 MHz and double-spoke cavity operating at 500 MHz.</p>

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year dc:date.available

2015

Author dc:creator

• Hopper, Christopher Shawn

Contributors dc:contributor

• Jean R. Delayen
• Jozef Dudek
• Alexander Godunov
• Geoffrey Kraft
• Mileta Tomovic

• Accelerator
• High-Velocity Cavity
• RF
• SRF
• Spoke Cavity
• Superconducting
• Electrical and Electronics
• Physics

Statement dc:rights

• <p>In Copyright. URI: <a href="http://rightsstatements.org/vocab/InC/1.0/">http://rightsstatements.org/vocab/InC/1.0/</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).</p>

Identifier

9781321841084

OAI identifier oai:identifier

oai:digitalcommons.odu.edu:physics_etds-1052