JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{bate:srf2021-supfdv001,
author = {C. Bate and A. Dangwal Pandey and A. Ermakov and B. Foster and W. Hillert and T.F. Keller and D. Reschke and J. Schaffran and S. Sievers and H. Weise and M. Wenskat},
% author = {C. Bate and A. Dangwal Pandey and A. Ermakov and B. Foster and W. Hillert and T.F. Keller and others},
% author = {C. Bate and others},
title = {{Update on Nitrogen Infusion Sample R&D at DESY}},
booktitle = {Proc. SRF'21},
% booktitle = {Proc. 20th International Conference on RF Superconductivity (SRF'21)},
pages = {57--61},
eid = {SUPFDV001},
language = {english},
keywords = {niobium, vacuum, cavity, superconductivity, SRF},
venue = {East Lansing, MI, USA},
series = {International Conference on RF Superconductivity},
number = {20},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2022},
issn = {2673-5504},
isbn = {978-3-95450-233-2},
doi = {10.18429/JACoW-SRF2021-SUPFDV001},
url = {https://jacow.org/srf2021/papers/supfdv001.pdf},
abstract = {{Many accelerator projects such as the European XFEL cw upgrade or the ILC, would benefit from cavities with reduced surface resistance (high Q-values) while maintaining a high accelerating gradient. A possible way to meet the requirements is the so-called nitrogen-infusion procedure on Niobium cavities. However, a fundamental understanding and a theoretical model of this method are still missing. The approach shown here is based on R\&D using small samples, with the goal of identifying all key parameters of the process and establishing a stable, reproducible recipe. To understand the underlying processes of the surface evolution that give improved cavity performance, advanced surface-analysis techniques (e.g. SEM/EDX, TEM, XPS, TOF-SIMS) are utilized and several kinds of samples are analyzed. Furthermore, parameters such as RRR and the surface critical magnetic field denoted as H_{c3} have been investigated. For this purpose, a small furnace dedicated to sample treatment was set up to change and explore the parameter space of the infusion recipe. Results of these analyses and their implications for the R\&D on cavities are presented.}},
}