Nitrogen Doping Study in Ingot Niobium Cavities
| Title: | Nitrogen Doping Study in Ingot Niobium Cavities |
|---|---|
| Authors: | Dhakal, Pashupati; Ciovati, Gianluigi; Kneisel, Peter; Myneni, Ganapati Rao; Makita, Junki |
| Source: | Physics Faculty Publications |
| Publisher Information: | ODU Digital Commons |
| Publication Year: | 2015 |
| Collection: | Old Dominion University: ODU Digital Commons |
| Subject Terms: | Accelerator technology; Superconducting RF; Cavity; Niobium; SRF; Accelerating-gradient; Radio-frequency; Elementary Particles and Fields and String Theory; Engineering Physics; Physics |
| Description: | Thermal diffusion of nitrogen in superconducting radio frequency cavities at temperatures around 800C has resulted in the increase in quality factor with a low-field Q-rise. However, the maximum accelerating gradients of these doped cavities often reduces below the values achieved by standard treatments. In this contribution, we present the results of the nitrogen diffusion into ingot niobium cavities subjected to successive material removal from the inner cavity surface by electropolishing in an effort to explore the underlying cause for the gradient degradation. |
| Document Type: | conference object |
| File Description: | application/pdf |
| Language: | unknown |
| Relation: | https://digitalcommons.odu.edu/physics_fac_pubs/635; https://digitalcommons.odu.edu/context/physics_fac_pubs/article/1636/viewcontent/Makita_2015_NitrogenDopingStudyinIngotOCR.pdf |
| DOI: | 10.18429/JACoW-IPAC2015-WEPWI009 |
| Availability: | https://digitalcommons.odu.edu/physics_fac_pubs/635; https://doi.org/10.18429/JACoW-IPAC2015-WEPWI009; https://digitalcommons.odu.edu/context/physics_fac_pubs/article/1636/viewcontent/Makita_2015_NitrogenDopingStudyinIngotOCR.pdf |
| Accession Number: | edsbas.ABFAD6D9 |
| Database: | BASE |