Paper | Title | Page |
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WEPWB043 | Nb3Sn Vapor Diffusion Coating System at SARI: Design, Construction, and Commissioning | 655 |
SUSPB038 | use link to see paper's listing under its alternate paper code | |
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This paper describes the design of a coating system for the preparation of a superconducting radio-frequency cavity with Nb3Sn thin films. The device consists of a coating chamber made of pure niobium, a vacuum furnace for heating the coating chamber, a superconducting cavity bracket and two crucible heaters. The chamber is vacuum isolated from the furnace body to protect the superconducting cavity from contamination during the coating process. The device has been built and commissioned, which could be used for Nb₃Sn coating of a 1.3 GHz single-cell superconducting cavity in future. | ||
DOI • | reference for this paper ※ doi:10.18429/JACoW-SRF2023-WEPWB043 | |
About • | Received ※ 19 June 2023 — Revised ※ 22 June 2023 — Accepted ※ 26 June 2023 — Issue date ※ 08 July 2023 | |
Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |
WEPWB044 | Realization of Accelerating Gradient Larger than 25 MV/m on High-Q 1.3 GHz 9-Cell Cavities for SHINE | 658 |
SUSPB039 | use link to see paper's listing under its alternate paper code | |
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Funding: This work was supported by Shanghai Municipal Science and Technology Major Project (No. 2017SHZDZX02). We present our studies on the optimized nitrogen-doping and medium-temperature baking recipes applied on 1.3GHz SRF cavities, aiming at meeting the requirements of the SHINE project. The optimized nitrogen-doping process resulted in achieving a Q₀ of over 4.0×1010 at medium field and a maximum accelerating gradient exceeding 35 MV/m on single cell cavities, and a Q₀ of over 2.8×1010 at medium field and a maximum accelerating gradient exceeding 26 MV/m in 9-cell cavities. For 1.3 GHz 9-cell cavities subjected to medium-temperature baking, Q₀ values exceeding 3.5×1010 at 16 MV/m and maximum accelerating gradients surpassing 25 MV/m were achieved. These studies provide two options of high-Q recipes for SHINE cavities. The treatment processes of cavities and their vertical test results are described in this paper. *chenjinfang@sari.ac.cn |
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DOI • | reference for this paper ※ doi:10.18429/JACoW-SRF2023-WEPWB044 | |
About • | Received ※ 19 June 2023 — Revised ※ 22 June 2023 — Accepted ※ 26 June 2023 — Issue date ※ 26 June 2023 | |
Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |