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Title Next-Generation Nb/Cu Cavities with Energetic Condensation
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
Author(s) A-M Valente-Feliciano, A. Palczewski, C. Reece
Publication Date To Appear in 2021
Category SRF Technology
Document Type Meeting
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Accelerator Ops, R&D / Inst for SRF Sci & Tech / SRF Research & Dev
Funding Source Nuclear Physics (NP)
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: OSTI Number:
LANL Number: Other Number:
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Meeting / Conference
Meeting Name SRF 2021
Meeting Date 6/28/2021
Document Subtype Abstract
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