Superconducting Radio-Frequency Cavities for Low-Beta Particle Accelerators

2013 ◽  
pp. 185-203 ◽  
Author(s):  
Michael Kelly
Keyword(s):  
Radio Frequency ◽  
Beta Particle ◽  
Particle Accelerators ◽  
Superconducting Radio Frequency

Superconducting Radio-Frequency Systems for High-β Particle Accelerators

2012 ◽  
Vol 05 ◽  
pp. 147-184 ◽  
Author(s):  
Sergey Belomestnykh
Keyword(s):  
Radio Frequency ◽  
Recent Progress ◽  
Higher Order ◽  
Particle Accelerators ◽  
Order Mode ◽  
Rf Systems ◽  
Superconducting Radio Frequency ◽  
Photoemission Electron ◽  
Higher Order Mode ◽  
Radio Frequency Systems

This article addresses the physics and engineering of the superconducting radio-frequency systems for high-β particle accelerators. I consider different geometries for cavities, discuss criteria for optimization, and options for higher-order mode damping. In reviewing recent progress in the field, SRF systems are classified according to the functions they perform. These systems are fundamental RF accelerating systems, deflecting/crab cavities, harmonic RF systems, and SRF photoemission electron guns.

Superconducting Radio-Frequency Cavities for Low-Beta Particle Accelerators

2012 ◽  
Vol 05 ◽  
pp. 185-203 ◽  
Author(s):  
Michael Kelly
Keyword(s):  
Beta Particle ◽  
Particle Accelerators ◽  
Half Wave ◽  
Superconducting Radio Frequency ◽  
Superconducting Cavities ◽  
Recent Developments ◽  
Common Notion ◽  
Quarter Wave ◽  
Low Performance ◽  
Accelerating Cavities

High-power proton and ion linac projects based on superconducting accelerating cavities are driving a worldwide effort to develop and build superconducting cavities for beta < 1. Laboratories and institutions building quarter-wave, half-wave and single- or multi-spoke cavities continue to advance the state of the art for this class of cavities, and the common notion that low-beta SRF cavities fill a need in niche applications and have low performance is clearly no longer valid. This article reviews recent developments and results for SC cavity performance for cavities with beta up to approximately 0.5. The considerable ongoing effort on reduced beta elliptical cell cavities is not discussed. An overview of associated subsystems required to operate low-beta cavities, including rf power couplers and fast and slow tuners, is presented.

Superconducting Radio-Frequency Fundamentals for Particle Accelerators

2012 ◽  
Vol 05 ◽  
pp. 119-146 ◽  
Author(s):  
Alex Gurevich
Keyword(s):  
Radio Frequency ◽  
Quality Factor ◽  
Electromagnetic Fields ◽  
Surface Resistance ◽  
Particle Accelerators ◽  
Superconducting Radio Frequency ◽  
Srf Cavities

An overview of fundamentals of superconductors under radio-frequency electromagnetic fields in particle accelerators is given, with emphasis on intrinsic physics and materials mechanisms which limit the performance of the superconducting radio-frequency (SRF) resonator cavities. Multiscale mechanisms which control the surface resistance and the quality factor of the SRF cavities at low and high rf fields are discussed. We also discuss possible ways of pushing the limit of the SRF performance by materials impurities and multilayer nanostructuring which may open up opportunities of using materials other than Nb to significantly increase the maximum accelerating fields and improve the performance of the SRF cavities operating at 4.2 K.

Development of a 1497-MHz, 13.5-kW Continuous-Wave Magnetron for Superconducting Radio Frequency Accelerator

2021 ◽  
pp. 1-9
Author(s):  
Wenliang Li ◽  
Pengjiao Zhang ◽  
Bowen Zhou ◽  
Hong Zhang ◽  
Youchun Liu ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Continuous Wave ◽  
Superconducting Radio Frequency
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