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TY - CONF AU - Mihara, K. AU - Jing, Y.C. AU - Litvinenko, V. AU - Petrushina, I. AU - Pinayev, I. AU - Wang, G. ED - Bishofberger, Kip:Carlsten, Bruce (LANL, Los Alamos, NM, USA)[ORCID:0000-0001-5619-907X] ED - Schaa, Volker RW TI - Emittance Measurements from SRF Gun in CeC Accelerator J2 - Proc. of FEL2017, Santa Fe, NM, USA, August 20-25, 2017 C1 - Santa Fe, NM, USA T2 - International Free Electron Laser Conference T3 - 38 LA - english AB - In this paper we report on extremely good performance of 113 MHz SRF CW gun. This gun is a part of the system built to test coherent electron cooling concept and was aimed to generate trains of 78 kHz pulses with large 1 nC to 5 nC charge per bunch. While it was not built for attaining record low emittances, the machine can achieve very low normalized emittances ~ 0.3 mm mrad with 0.5 nC charge per bunch using CsK2Sb photocathode. In addition to excellent performance, this gun provides for very long lifetime of these high QE photocathodes, with a typical using time of 2 months. PB - JACoW CP - Geneva, Switzerland SP - 470 EP - 474 KW - ion KW - gun KW - emittance KW - solenoid KW - cathode DA - 2018/02 PY - 2018 SN - 978-3-95450-179-3 DO - 10.18429/JACoW-FEL2017-WEP025 UR - http://jacow.org/fel2017/papers/wep025.pdf ER -