Publications
Publication Information
| Title | Advances in secondary ion mass spectrometry for N-doped niobium | ||
| Authors | Jonathan Angle, Ari Palczewski, Charles Reece, Fred Stevie, Michael Kelley | ||
| JLAB number | JLAB-ACC-20-3287 | ||
| LANL number | (None) | ||
| Other number | DOE/OR/23177-5081 | ||
| Document Type(s) | (Journal Article) | ||
| Category: | SRF Technology |
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| Associated with EIC: | No | ||
| Supported by Jefferson Lab LDRD Funding: | No | ||
| Funding Source: | High Energy Physics (HEP) | ||
| Other Funding: | Nuclear Physics | ||
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Journal Compiled for Journal of Vacuum Science & Technology B Volume 39 Page(s) 024004 Refereed | |||
| Publication Abstract: | Accurate SIMS measurement of nitrogen in niobium relies on the use of closely equivalent standards, made by ion implantation, to convert nitrogen signal intensity to nitrogen content by determination of relative sensitivity factors (RSF). Accurate RSF values for ppm-range nitrogen contents are increasingly critical, as more precision is sought in processes for next-generation superconducting radio-frequency (SRF) accelerator cavities. Factors influencing RSF value measurements were investigated with the aim of reliably attaining better than 10% accuracy in N concentrations at various depths into the bulk. This has been accomplished for materials typical of SRF cavities at the cost of great attention to all aspects. | ||
| Experiment Numbers: | other | ||
| Group: | SRF Research & Dev | ||
| Document: | |||
| DOI: | https://doi.org/10.1116/6.0000848 | ||
| Accepted Manuscript: | JVB21-AR-00047.pdf | ||
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