Superconducting RF materials other than bulk niobium: a review

AM Valente-Feliciano - Superconductor Science and Technology, 2016 - iopscience.iop.org
For the past five decades, bulk niobium (Nb) has been the material of choice for
superconducting RF (SRF) cavity applications. Alternatives such as Nb thin films and other …

Tuning microwave losses in superconducting resonators

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 …

Nb3Sn superconducting radiofrequency cavities: fabrication, results, properties, and prospects

S Posen, DL Hall - Superconductor Science and Technology, 2017 - iopscience.iop.org
A microns-thick film of Nb 3 Sn on the inner surface of a superconducting radiofrequency
(SRF) cavity has been demonstrated to substantially improve cryogenic efficiency compared …

Higgs-Energy LEptoN (HELEN) Collider based on advanced superconducting radio frequency technology

S Belomestnykh, PC Bhat, A Grassellino… - arXiv preprint arXiv …, 2022 - arxiv.org
This Snowmass 2021 contributed paper discusses a Higgs-Energy LEptoN (HELEN) $ e^+
e^-$ linear collider based on advances superconducting radio frequency technology. The …

Theoretical estimates of maximum fields in superconducting resonant radio frequency cavities: stability theory, disorder, and laminates

DB Liarte, S Posen, MK Transtrum… - Superconductor …, 2017 - iopscience.iop.org
Theoretical limits to the performance of superconductors in high magnetic fields parallel to
their surfaces are of key relevance to current and future accelerating cavities, especially …

Record high-gradient SRF beam acceleration at Fermilab

D Broemmelsiek, B Chase, D Edstrom… - New Journal of …, 2018 - iopscience.iop.org
Many modern and future particle accelerators employ high gradient superconducting RF
(SRF) to generate beams of high energy, high intensity and high brightness for research in …

Grain-boundary structure and segregation in Nb3Sn coatings on Nb for high-performance superconducting radiofrequency cavity applications

J Lee, Z Mao, K He, T Spina, SI Baik, DL Hall, M Liepe… - Acta Materialia, 2020 - Elsevier
We report on atomic-scale analyses of grain boundary (GB) structures and segregation in
Nb 3 Sn coatings on Nb, prepared by the vapor-diffusion process, for superconducting …

Vortex nucleation in superconductors within time-dependent Ginzburg-Landau theory in two and three dimensions: Role of surface defects and material …

AR Pack, J Carlson, S Wadsworth, MK Transtrum - Physical Review B, 2020 - APS
We use time-dependent Ginzburg-Landau theory to study the nucleation of vortices in type-II
superconductors in the presence of both geometric and material inhomogeneities. The …

Superfluid flow in disordered superconductors with Dynes pair-breaking scattering: Depairing current, kinetic inductance, and superheating field

T Kubo - Physical Review Research, 2020 - APS
We investigate the effects of Dynes pair-breaking scattering rate Γ on the superfluid flow in a
narrow thin-film superconductor and a semi-infinite superconductor by self-consistently …

Accelerating fields up to 49 MV/m in TESLA-shape superconducting RF niobium cavities via 75C vacuum bake

A Grassellino, A Romanenko, D Bice… - arXiv preprint arXiv …, 2018 - arxiv.org
In this paper we present the discovery of a new surface treatment applied to
superconducting radio frequency (SRF) niobium cavities, leading to unprecedented …