Advances in SRF technology over the last 40 years allowed achieving accelerating gradients~ 50 MV/m corresponding to peak surface magnetic fields close to the theoretical …
We report a surface treatment that systematically improves the quality factor of niobium radio frequency cavities beyond the expected limit for niobium. A combination of annealing in a …
Recently, Nb superconducting radio frequency cavities vacuum heat treated between 300 and 400 C for a few hours have exhibited very high quality factors (∼ 5× 10 10 at 2.0 K) …
A Gurevich - Superconductor Science and Technology, 2017 - iopscience.iop.org
An overview of a theory of electromagnetic response of superconductors in strong radio- frequency (RF) electromagnetic fields is given with the emphasis on applications to …
We propose a theory of nonlinear surface resistance of a dirty superconductor in a strong radio-frequency (rf) field, taking into account magnetic and nonmagnetic impurities, finite …
A Gurevich - Superconductor Science and Technology, 2023 - iopscience.iop.org
The performance of superconducting resonators, particularly cavities for particle accelerators and micro cavities and thin film resonators for quantum computations and …
Superconducting microwave cavities featuring ultrahigh Q-factors, which measure the efficiency of energy storage in relation to energy loss in a system, are revolutionizing …
Magnetic flux trapped during the cooldown of superconducting radio-frequency cavities through the transition temperature due to incomplete Meissner state is known to be a …
A theory of dissipative nonlinear conductivity, σ 1 (ω, H), of s-wave superconductors under strong electromagnetic fields at low temperatures is proposed. Closed-form expressions for …