Speaker
Description
Nb$_{3}$Sn is one of the most promising materials for the next generation of superconducting RF (SRF) cavities. One key advantage is that Nb$_{3}$Sn cavities can achieve high Q-values at 4 K, whereas conventional Nb cavities require cooling to 2 K. This enables the operation of SRF cavities using conduction cooling, thereby eliminating the need for liquid helium, unlike conventional SRF cavities that require immersion cooling. Since around 2019, KEK has been conducting Nb$_{3}$Sn deposition tests on single-cell cavities using the Sn vapor diffusion method and has steadily improved cavity performance. Additionally, a small deposition furnace dedicated to sample studies was constructed to investigate the relationship between Nb$_{3}$Sn film quality and deposition parameters. In this presentation, we will report the results of sample deposition tests and RF measurements of single-cell Nb$_{3}$Sn cavities.
Funding Agency
This work was supported by Japan Grant Number JPMXP1423812204 and JSPS KAKENHI Grant Numbers JP22K18130.
| Region represented | Asia |
|---|---|
| Paper preparation format | Word |
