|TUP052||Design and Commissioning of a Magnetic Field Scanning System for SRF Cavities||547|
|SUSP031||use link to see paper's listing under its alternate paper code|
Funding: Work supported by NSF Grant 100614-010. G. C. is supported by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177.
Trapped magnetic vortices are one of the leading sources of residual losses in SRF cavities. Mechanisms of flux pinning depend on the materials treatment and cool-down conditions. A magnetic field scanning system using flux-gate magnetometers and Hall probes has been designed and built to allow measuring the local magnetic field of trapped vortices normal to the outer surface of 1.3 GHz single-cell SRF cavities at cryogenic temperatures. Such system will allow inferring the key information about the distribution and magnitude of trapped flux in the SRF cavities for different material, surface preparations and cool-down conditions.
|DOI •||reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2019-TUP052|
|About •||paper received ※ 22 June 2019 paper accepted ※ 30 June 2019 issue date ※ 14 August 2019|
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