Proceedings of the 19th International Conference on RF Superconductivity
SRF2019: 19th International Conference on RF Superconductivity, June 30-July 5, 2019, Dresden, Germany
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.
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Original Publication Citation
Parajuli, I. P., Ciovati, G., Clemens, W. A., Delayen, J. R., Nice, J., & Gurevich, A. V. (2019). Design and commissioning of magnetic field scanning system for SRF cavities. In P. Michl, A. Arnold, and V.R.W. Schaa (Eds.), Proceedings of the 19th International Conference on RF Superconductivity (pp. 547-549). JACoW. https://doi.org/10.18429/JACoW-SRF2019-TUP052
0000-0002-0873-2068 (Parajuli), 0000-0001-9316-7704 (Ciovati), 0000-0003-0759-8941 (Gurevich)
Parajuli, Ishwari Prasad; Ciovati, Gianluigi; Clemens, W. A.; Delayen, Jean R.; Nice, J.; Gurevich, Alex V.; Michel, Peter (Ed.); Arnold, André (Ed.); and Schaa, Volker R.W. (Ed.), "Design and Commissioning of a Magnetic Field Scanning System for SRF Cavities" (2019). Physics Faculty Publications. 736.