TY - JOUR
T1 - Improving the Work Function of Nitrogen-Doped Niobium Surfaces for SRF Cavities by Plasma Processing
AU - Tippey, K. E.
AU - Afanador, R.
AU - Doleans, M.
AU - Kim, S.
AU - Mammosser, J. D.
AU - McMahan, C.
AU - Martinello, M.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2018/10/5
Y1 - 2018/10/5
N2 - Work function and surface chemistries of SiC-polished, electropolished, and nitrogen-doped niobium coupons were analyzed before and after plasma processing using a neon-oxygen gas mixture. These studies represent an initial enquiry into the feasibility of applying the plasma processing technique designed at ORNL for the Spallation Neutron Source (SNS) to the nitrogen-doped Nb cavities for the Linac Coherent Light Source (LCLS-II) upgrade. Work function of all measured samples was increased after plasma processing, which indicates the strong potential of the plasma processing technique as a tool for increasing the accelerating gradient of nitrogen-doped cavities.
AB - Work function and surface chemistries of SiC-polished, electropolished, and nitrogen-doped niobium coupons were analyzed before and after plasma processing using a neon-oxygen gas mixture. These studies represent an initial enquiry into the feasibility of applying the plasma processing technique designed at ORNL for the Spallation Neutron Source (SNS) to the nitrogen-doped Nb cavities for the Linac Coherent Light Source (LCLS-II) upgrade. Work function of all measured samples was increased after plasma processing, which indicates the strong potential of the plasma processing technique as a tool for increasing the accelerating gradient of nitrogen-doped cavities.
UR - http://www.scopus.com/inward/record.url?scp=85054901630&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1067/8/082010
DO - 10.1088/1742-6596/1067/8/082010
M3 - Conference article
AN - SCOPUS:85054901630
SN - 1742-6588
VL - 1067
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 8
M1 - 082010
T2 - 9th International Particle Accelerator Conference, IPAC 2018
Y2 - 29 April 2018 through 4 May 2018
ER -