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TY - CONF AU - Furuta, F. AU - Dobbins, J. AU - Eichhorn, R.G. AU - Ge, M. AU - Gonnella, D. AU - Hoffstaetter, G.H. AU - Liepe, M. AU - O'Connell, T.I. AU - Quigley, P. AU - Sabol, D.M. AU - Sears, J. AU - Smith, E.N. AU - Veshcherevich, V. ED - Yamazaki, Yoshishige ED - Facco, Alberto ED - McCausey, Amy ED - Schaa, Volker RW TI - Performance of the Novel Cornell ERL Main Linac Prototype Cryomodule J2 - Proc. of LINAC2016, East Lansing, MI, USA, 25-30 September 2016 C1 - East Lansing, MI, USA T2 - Linear Accelerator Conference T3 - 28 LA - english AB - The main linac cryomodule (MLC) for the future energy-recovery linac (ERL) based X-ray light source at Cornell has been designed, fabricated, and tested. It houses six 7-cell SRF cavities with individual higher order-modes (HOMs) absorbers, cavity frequency tuners, and one magnet/BPM section. Cavities have achieved the specification values of 16.2MV/m with high-Q of 2.0·10¹⁰ in 1.8K in continuous wave (CW) mode. During initial MLC cavity testing, we encountered some field emission, reducing Q and lowering quench field. To overcome field emission and find optimal cool-down parameters, RF processing and thermal cycles with different cool-down conditions has been done. Here we report on these studies and present final results from the MLC cavity performance. PB - JACoW CP - Geneva, Switzerland SP - 492 EP - 495 KW - cavity KW - linac KW - cryomodule KW - SRF KW - HOM DA - 2017/05 PY - 2017 SN - 978-3-95450-169-4 DO - 10.18429/JACoW-LINAC2016-TUPLR011 UR - http://jacow.org/linac2016/papers/tuplr011.pdf ER -