We have investigated the dissolution of a natural oxide layer on a Nb (110) surface upon
heating, combining x-ray reflectivity, grazing incidence diffuse scattering, and core-level …

The nuclear microprobe at the Pierre Süe Laboratory is a facility exclusively devoted to
microanalysis. The microprobe consisting of a single stage Van de Graaff accelerator and …

Electropolishing (EP) offers a smoother surface, and that makes us expect high gradients in
superconducting niobium cavities. EP has a little bit complicated procedure and needs …

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 Robust Si 3 N 4/Ti joints with Nb interlayer brazed using 68.8 Ag26. 7Cu4. 5Ti
(mass%) filler alloy (TICUSIL®) were developed. Interfacial microstructural evolution and …

Radio-frequency (rf) superconducting cavities made of high purity niobium are widely used
to accelerate charged particle beams in particle accelerators. The major limitation to achieve …

Nanoscale defect structure within the magnetic penetration depth of∼ 100 nm is key to the
performance limitations of niobium superconducting radio frequency cavities. Using a …

A fundamental understanding of superconducting radio frequency Nb cavity processing is
necessary to achieve the desired improvement in their performance, which is needed for …

A first series of nitrogen infusion runs of 1.3 GHz single-cell cavities at DESY resulted in an
unexpected and severe deterioration observed during the vertical cold test. To investigate …

The performance of niobium superconducting radiofrequency (SRF) accelerator cavities is
strongly impacted by the topmost several nanometers of the active (interior) surface …