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| MOPA67 |
Examining the Effects of Oxygen Doping on SRF Cavity Performance |
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- H. Hu, Y.K. Kim
University of Chicago, Chicago, Illinois, USA
- D. Bafia
Fermilab, Batavia, Illinois, USA
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Superconducting radiofrequency (SRF) cavities are resonators with extremely low surface resistance that enable accelerating cavities to have extremely high quality factors (Q0). High (Q0) decreases the capital required to keep accelerators cold by reducing power loss. The performance of SRF cavities is largely governed by the surface composition of the first 100 nm of the cavity surface. Impurities such as oxygen and nitrogen have been observed to yield high Q0, but their precise roles are still being studied. Here, we compare the performance of cavities doped with nitrogen and oxygen in terms of fundamental material properties to understand how these impurities affect performance. This enables us to have further insight into the underlying mechanisms that enable these surface treatments to yield high Q0 performance.
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-NAPAC2022-MOPA67
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| About • |
Received ※ 02 August 2022 — Accepted ※ 05 August 2022 — Issue date ※ 03 October 2022 |
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