Improving the work function of the niobium surface of SRF cavities by plasma processing
Source abstract
Abstract
Abstract An in situ plasma processing technique using chemically reactive oxygen plasma to remove hydrocarbons from superconducting radio frequency cavity surfaces at room temperature has been developed at the spallation neutron source, at Oak Ridge National Laboratory. To understand better the interaction between the plasma and niobium surface, surface studies on small samples were performed. In this article, we report the results from those surface studies. The results show that plasma processing removes hydrocarbons from top surface and improves the surface work function by 0.5–1.0 eV. Improving the work function of RF surface of cavities can help to improve their operational performance.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Particle accelerators and beam dynamics · Plasma Diagnostics and Applications · Magnetic confinement fusion research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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