The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Checchin, M. AU - Grassellino, A. AU - Martinello, M. AU - Melnychuk, O.S. AU - Posen, S. AU - Romanenko, A.S. AU - Sergatskov, D.A. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - New Insight on Nitrogen Infusion Revealed by Successive Nanometric Material Removal J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - In this study we present new insight on low temperature nitrogen infusion on bulk niobium superconducting radio-frequency (SRF) cavities. Nitrogen infusion is a thermal treatment recently discovered at Fermilab that allows to reach high accelerating gradients, of the order of 45MV/m, with high Q-factors, of the order of 2 · 10¹⁰. Detailed depth dependent RF studies (by means of subsequent HF rinses) and comparisonwith SIMS results pinpointed interstitial nitrogen as the responsible for the improved performance and uncovered the extension of its profile inside the material. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2665 EP - 2667 KW - cavity KW - SRF KW - accelerating-gradient KW - factory KW - niobium DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-WEPMK016 UR - http://jacow.org/ipac2018/papers/wepmk016.pdf ER -