Bulk niobium is the most common material used in the fabrication of rf superconducting
cavities for accelerators. Predicting and reducing the rf surface dissipation in these cavity …

Many modern and proposed future particle accelerators rely on superconducting radio
frequency cavities made of bulk niobium as primary particle accelerating structures. Such …

Foreword from author; When I joined the CEA Saclay SRF group in 1989, my initial
background was physical chemistry and surface science, which I completed later on with …

Abstract Three 1.3 GHz nine-cell large-grain superconducting niobium cavities were
investigated with medium-temperature baking, using buffered chemical polishing to remove …

This study shows that low angle grain boundaries (LAGBs) can be created by small 5%
strains in high purity (residual resistivity ratio≥ 200) superconducting radio frequency (SRF) …

Niobium superconducting radio frequency (SRF) cavities enable the operation of modern
superconducting accelerator facilities. These cavities do not approach the theoretical …

Recent studies of the quality factor degradation mechanisms in superconducting RF niobium
cavities at high surface magnetic fields revealed that RF performance may depend on the …

Radio frequency (RF) superconductivity has become a key technology for many modern
particle accelerators. One of its most salient features of this technology is the ability of …

Niobium-coated copper resonator cavities are an interesting alternative to bulk niobium
ones for superconducting RF (SCRF) applications to particle accelerators. Magnetron …

Hydrogen is involved in the degradation of the quality factor of superconducting niobium
cavities. Knowing better the origin of this contamination, as well as the behavior of hydrogen …