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TY - CONF AU - Zhang, Y.X. AU - Ge, X.Q. AU - Li, W. AU - Shao, J.Q. AU - Wang, S. AU - Wang, Y. AU - Wang, Y.G. AU - Wei, W. AU - Zhang, B. AU - Zhu, B.L. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Research on Secondary Electron Emission Characteristics of Diamond-like Carbon Thin Films J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - In modern particle accelerators, the build-up of electron cloud is a main limiting factor for the achievement of high-quality beam. Among the techniques to mitigate it, coating the internal walls of the beam pipes with a thin film which has a low secondary electron yield (SEY) is considered to be one of the most effective means. From several earlier studies, it was found that diamond-like carbon (DLC) thin films are potential coatings. This paper is mainly about the research on secondary electron emission characteristics of DLC thin films. The secondary electron emission (SEE) tests were done at temperature of 298 K and vacuum pressure of 2×10⁻⁹ Torr. Here, we obtained the characteristics of the SEE from DLC film coatings with different thickness under ultrahigh-vacuum (UHV) conditions. The maximum secondary electron yield (SEY), δmax, of the DLC thin films under different primary electron doses were also obtained, respectively. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1306 EP - 1308 KW - electron KW - vacuum KW - experiment KW - laser KW - gun DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-TUPMP031 UR - http://jacow.org/ipac2019/papers/tupmp031.pdf ER -