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TY - CONF AU - Wu, A.D. AU - Guo, H. AU - He, Y. AU - Hu, C.F. AU - Huang, S.C. AU - Li, C.L. AU - Li, Y.M. AU - Liu, X. AU - Pan, F. AU - Song, Y.K. AU - Xiong, P.R. AU - Yang, L. AU - Yue, W.M. AU - Zhang, C. AU - Zhang, S.H. AU - Zhao, H.W. ED - Pei, Guoxi ED - Schaa, Volker RW ED - Chin, Yong Ho ED - Fu, Shinian ED - Zhao, Ning TI - Vertical Test Results of Plasma In-situ Cleaning on Low Beta HWR Cavity J2 - Proc. of LINAC2018, Beijing, China, 16-21 September 2018 CY - Beijing, China T2 - Linear Accelerator Conference T3 - 29 LA - english AB - Field emission occurred in SRF cavity is the major limitation to operate at high gradient with stability. The plasma in-situ cleaning for the low beta HWR cavity was carried out to remove the hydrocarbons contaminants on the inner cavity surface. And the vertical test results indicated that the field emission effect was relieved with the increasing of the quench point and emission set-on point. Thus, oxygen active plasma processing can be an effective method to solve the field emission issues for the low beta HWR cavity. PB - JACoW Publishing CP - Geneva, Switzerland SP - 408 EP - 411 KW - plasma KW - cavity KW - electron KW - experiment KW - SRF DA - 2019/01 PY - 2019 SN - 2226-0366 SN - 978-3-95450-194-6 DO - DOI: 10.18429/JACoW-LINAC2018-TUPO036 UR - http://jacow.org/linac2018/papers/tupo036.pdf ER -