Title
| Development of the Directly-Sliced Niobium Material for High Performance SRF Cavities |
Author(s)
| Kumar, Ashish (KEK, Tsukuba) ; Araki, Hayato (KEK, Tsukuba) ; Dohmae, Takeshi (KEK, Tsukuba) ; Ito, Hayato (KEK, Tsukuba) ; Saeki, Takayuki (KEK, Tsukuba) ; Umemori, Kensei (KEK, Tsukuba) ; Yamamoto, Akira (KEK, Tsukuba ; CERN ; JAI, UK ; Oxford U.) ; Yamanaka, Masashi (KEK, Tsukuba) |
Publication
| 2023 |
Number of pages
| 7 |
In:
| JACoW SRF 2023 (2023) 634-640 |
In:
| 21st International Conference on Radio-Frequency Superconductivity (SRF 2023), Grand Rapids, MI, United States, 22 - 30 Jun 2023, pp.634-640 |
DOI
| 10.18429/JACoW-SRF2023-WEIXA04
|
Subject category
| Accelerators and Storage Rings |
Abstract
| For the purpose of cost reduction for the ILC, KEK has been conducting R&D; on direct sliced Nb materials such as large grain and medium grain Nb. Single-cell, 3-cell, and 9-cell cavities have been manufactured, and each has demonstrated a high-performance accelerating gradient exceeding 35 MV/m. The results of applying high-Q/high-G recipes, such as two-step baking and furnace baking to these cavities are also shown. Moreover, mechanical tests have been carried out for the beforementioned materials to evaluate their strength for application to the High-Pressure Gas Safety Law. The status of development of these large grain and Medium grain Nb will be presented. |
Copyright/License
| © 2024 the author(s) (License: CC-BY-4.0) |