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TY - CONF AU - Furuta, F. AU - Gao, F. AU - Ge, M. AU - Gruber, T. AU - Kaufman, J.J. AU - Liepe, M. AU - Maniscalco, J.T. AU - Rose, J. AU - Sears, J. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - RF Test Result of a BNL N-Doped 500 MHz B-Cell Cavity at Cornell 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 - Cornell's SRF group has collaborated with Brookhaven National Laboratory (BNL) on one 500 MHz CESR type SRF "B-cell" cavity (BNL B-cell) for the National Synchrotron Light Source II. Cornell has been responsible for RF surface preparation, vertical testing, and short cavity string assembly. As a state-of-the-art surface preparation protocol, Cornell selected Nitrogen doping for the BNL B-cell. N-doping has been well demonstrated and established to push the cavity quality factor (Q0) higher in 1.3GHz SRF cavities at many laboratories. Cornell calculated that N-doping could also be beneficial on a 500MHz SRF cavity, with a potential to increase its Q0 by a factor of two compared with the traditional chemical polishing based surface preparation protocol. Here we report on the detailed surface preparation and vertical test result of the BNL B-cell. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2440 EP - 2442 KW - cavity KW - SRF KW - vacuum KW - superconducting-cavity KW - niobium DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-WEPMF036 UR - http://jacow.org/ipac2018/papers/wepmf036.pdf ER -