MOP10

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URL	https://doi.org/10.18429/JACoW-SRF2025-MOP10
Title	France-Japan collaboration for high-Q / high-G SRF cavities
Authors	A. Miyazaki, M. Fouaidy, N. Gandolfo, D. Longuevergne Université Paris-Saclay, CNRS/IN2P3, IJCLab G. Olry, M. Vannson, L. Vogt Laboratoire de Physique des 2 Infinis Irène Joliot-Curie M. Baudrier, G. Jullien CEA Paris-Saclay E. Cenni Commissariat à l'Énergie Atomique et aux Énergies Alternatives F. Eozénou, L. Maurice Commissariat à l'Energie Atomique T. Hara, M. Omet, H. Ito, K. Umemori High Energy Accelerator Research Organization
Abstract	High-performance SRF cavities are of central importance for many future projects and can only be realized through international collaboration. A key challenge is the standardization of parameters for chemical etching, heat treatment, and vertical testing. We have observed small but significant differences in the parameters defined locally across laboratories. In parallel with collaborative initiatives within European laboratories and between American and French institutions, we are consolidating the partnership between France and Japan. At present, we are developing a 1-cell 1.3 GHz cavity to systematically compare the vacuum furnaces at IJCLab and KEK, as well as the vertical testing procedures at CEA and KEK. Our investigations include mid-T baking, high-temperature annealing, low-temperature baking, and studies of magnetic field sensitivity. In this contribution, we present the global scope of the collabora- tion, the comparative analysis of furnaces, and the results of vertical tests.
Paper	download: MOP10.pdf
Cite	BibTeX, LaTeX, Text/Word, RIS, EndNote
Conference	22nd International Conference on RF Superconductivity
Series
Location	Tokyo
Date	18-26 Sep 2025
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	Lin Bian (IHEP), Kazuro Furukawa (KEK), Jaeyu Lee (POSTECH), Joele Mira (iThemba LABS), Maurizio Montis (INFN-LNL), Volker R. W. Schaa (GSI), Akihiro Shirakawa (KEK), Akito Uchiyama (Editor-in-Chief, RIKEN)
Online ISBN	978-3-95450-256-1
Online ISSN	2673-5504
Received	18 September 2025
Revised	23 September 2025
Accepted	23 September 2025
Issued	15 May 2026
DOI	10.18429/JACoW-SRF2025-MOP10
Pages	67-69
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.