The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Chen, S. AU - Chen, M. AU - Feng, L.W. AU - Hao, J.K. AU - Lin, L. AU - Liu, K.X. AU - Quan, S.W. AU - Wang, F. AU - Zhu, F. ED - Michel, Peter ED - Arnold, André ED - Schaa, Volker RW TI - Nitrogen Doping Studies of Superconducting Cavities at Peking University J2 - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019 CY - Dresden, Germany T2 - International Conference on RF Superconductivity T3 - 19 LA - english AB - Nitrogen doping studies with 1.3 GHz superconducting cavities were carried out at Peking University in recent years. We have realized 4×10¹⁰ of high quality factor at 12 MV/m and 2.0 K with large grain single cell cavities by heavy doping. To improve the accelerating gradient of high Q cavities, light doping recipe is adopted. Accelerating gradient is improved to 20 MV/m and the quality factor is larger than 3×10¹⁰ at 16 MV/m and 2.0 K for light doped cavities. The nitrogen treatment, test and analysis are presented in this paper. PB - JACoW Publishing CP - Geneva, Switzerland SP - 141 EP - 143 KW - cavity KW - niobium KW - accelerating-gradient KW - superconducting-cavity KW - ECR DA - 2019/08 PY - 2019 SN - "" SN - 978-3-95450-211-0 DO - doi:10.18429/JACoW-SRF2019-MOP039 UR - http://jacow.org/srf2019/papers/mop039.pdf ER -