Recent advances in metallographic polishing for SRF application

Conference · 01 July 2023

DOI:https://doi.org/10.18429/JACoW-SRF2023-WEIXA06· OSTI ID:2229622

Hryhorenko, O. ^[1]; Antoine, C. Z. ^[2]; Éozénou, F. ^[2]; Proslier, Th. ^[2]; Dohmae, T. ^[3]; Keckert, S. ^[4]; Knobloch, J. ^[4]; Kugeler, O. ^[4]; Longuevergne, D. ^[5]

---

1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
2. Univ. Paris-Saclay, Gif-sur-Yvette (France)
3. KEK, Ibaraki, Japan
4. HZB, Berlin, Germany
5. Université Paris-Saclay, Orsay (France)

This paper is an overview of the metallographic polishing R\&D program covering Niobium and Copper substrates treatment for thin film coating as an alternative fabrication pathway for 1.3 GHz elliptical cavities. The presented research is the result of a collaborative effort between IJCLab, CEA/Irfu, HZB, and KEK in order to develop innovative surface processing and cavity fabrication protocols capable of meeting stringent requirements for SRF surfaces, including the reduction of safety risks and ecological footprint, enhancing reliability, improving the surface roughness, and potentially allowing cost reduction. The research findings will be disclosed.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 2229622
• Report Number(s): JLAB-ACC-23-3972; DOE/OR/23177-7309
• Resource Relation: Conference: SRF2023 (21st International Conference on Radio-Frequency Superconductivity), Grand Rapids, MI, USA, June 25, 2023
• Country of Publication: United States
• Language: English