Superconducting Radio Frequency
Superconducting radio frequency (SRF) science and technology involves the application of electrical superconductors to radio frequency devices. The ultra-low electrical resistivity of a superconducting material allows an RF resonator to obtain an extremely high quality factor, Q. For example, it is commonplace for a 1.3 GHz niobium SRF resonant cavity at 1.8 Kelvin to obtain a quality factor of Q=5×1010. Such a very high Q resonator stores energy with very low loss and narrow bandwidth. These properties can be exploited for a variety of applications, including the construction of high-performance particle accelerator structures.
Read more about Superconducting Radio Frequency: Introduction, SRF Cavity Application in Particle Accelerators, Physics of SRF Cavities, Q Vs E, Wakefields and Higher Order Modes (HOMs), Cryogenics
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