Plasma treatment of bulk niobium surface for SRF cavities

Plasma Treatment of Bulk Niobium Surface for Superconducting RF Cavities: Optimization of the Experimental Conditions on Flat Samples

This Article is brought to you for free and open access by the Physics at ODU Digital Commons. It has been accepted for inclusion in Physics Faculty Publications by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. Repository Citation Rašković, M.; Upadhyay, J.; Vuskovic, L.; Popovic, S.; Valente-Feliciano, A.-M.; and Phillips, L., ...

3D Atom Probe Microscopy on Niobium for SRF Cavities

Fermi National Accelerator Laboratory (FNAL) is developing superconducting RF cavities for a future high-energy electron-positron linear collider as the next international, large-scale high energy physics discovery machine. Recently FNAL and the Northwestern University Center for Atom-Probe Tomography (NUCAPT), Evanston, Illinois, have joined forces to investigate the properties of the high pur...

3D Atom-Probe Microscopy on Niobium for SRF Cavities Proposal for LCRD/UCLC 2005

Study of Ultra-clean Surface for Niobium SC Cavities

For a TeV energy particle physics, R&D of electron/positron linear colliders has been conducted very hard at many laboratories. Development of high field gradient cavities is one of key issues to realize such a machine. Field emission loading is a dominant phenomenon limiting high field. Particulate contamination on the inner surface is a main source of field emission. In this paper, we report ...

Surface Superconductivity in Niobium for Superconducting RF Cavities

A systematic study is presented on the superconductivity (sc) parameters of the ultrapure niobium used for the fabrication of the nine-cell 1.3 GHz cavities for the linear collider project TESLA. Cylindrical Nb samples have been subjected to the same surface treatments that are applied to the TESLA cavities: buffered chemical polishing (BCP), electrolytic polishing (EP), low-temperature bakeout...