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DOE OSTI · 2482130

Reducing field emission in superconducting cavities with ozone

Ruber, Roger [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)] (ORCID:0000000206745543)
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Abstract

Contaminations on the active surface of high-power microwave resonators, such as radio-frequency accelerator cavities, can greatly enlarge electron field emission and reduce their performance. In this work, we demonstrate the use of ozone to clean the surface of niobium superconducting radio-frequency cavities resulting in reduced field emission and enhanced accelerating gradient before onset of field emission. We report results from processing four cavities.

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Ruber, Roger [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)] (ORCID:0000000206745543). 2024-12-16. Reducing field emission in superconducting cavities with ozone. https://doi.org/10.1103/physrevaccelbeams.27.122001

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