Publications
Publication Information
| Title | Next-Generation Nb/Cu Cavities with Energetic Condensation |
| Authors | A-M Valente-Feliciano, A. Palczewski, C. Reece |
| JLAB number | (None) |
| LANL number | (None) |
| Other number | (None) |
| Document Type(s) | (Meeting) |
| Category: | SRF Technology |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Meeting Abstract compiled for SRF 2021 | |
| Publication Abstract: | The development of energetic condensation techniques has resulted in exceptional Nb film quality and improved Nb/Cu RF performance. Progress is continuously made in exploiting the different film forming and energetic processes involved to tailor the final film RF response. Convergence of parameters is now emerging across techniques such as electron cyclotron resonance (ECR) and high power impulse magnetron sputtering (HiPIMS). These developments are applied to large quadrupole resonator (QPR) samples and 1.3 GHz single cell cavities deposition. The resulting RF performance is studied at different temperatures, along with the cooldown effect and sensitivity to external applied magnetic fields. In conjunction, material and superconducting properties of the Nb film are evaluated with various microscopy and magnetometry techniques to gain insight into the contribution of various processes and their effect on the residual and flux induced surface resistances. This contribution presents the latest progress made in exploiting the processes involved in energetic condensation towards RF Q-slope mitigation for Nb/Cu films. |
| Experiment Numbers: | |
| Group: | SRF Research & Dev |
| Document: | docx |
| DOI: | |
| Accepted Manuscript: | |
| Supporting Documents: | |
| Supporting Datasets: | |