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TY - CONF AU - Lee, S.H. AU - Buaphad, P. AU - Chun, M.-H. AU - Jeong, I.G. AU - Joo, Y.J. AU - Kim, Y. AU - Lee, H.R. AU - Lee, J.Y. AU - Yu, I.H. ED - Yamazaki, Yoshishige ED - Raubenheimer, Tor ED - McCausey, Amy ED - Schaa, Volker RW TI - Design Study of Low-Level RF Control System for CW Superconducting Electron Linear Accelerator in KAERI J2 - Proc. of NAPAC2019, Lansing, MI, USA, 01-06 September 2019 CY - Lansing, MI, USA T2 - North American Particle Accelerator Conference T3 - 4 LA - english AB - Korea Atomic Energy Research Institute (KAERI) has been operating a 20 MeV superconducting RF linear accelerator (SRF LINAC) to conduct research on atom/nuclear reaction using neutron Time-Of-Flight (nTOF). It can accelerate electron beams up to 20 MeV with 1 kW continuous wave (CW) operation mode. Unfortunately, this machine has been aged over 15 years that brings about considerably difficulty in normal operation due to the performance degradation of sub-systems. To improve the operation condition of 20 MeV SRF LINAC, we has been carrying out an upgrade project with replacement and repair of old sub-systems from 2018. This paper describes a design study of Low-Level RF (LLRF) feedback system to raise the stability and acceleration efficiency of the electric field generated in the superconducting RF cavity structure in 20 MeV SRF LINAC. PB - JACoW Publishing CP - Geneva, Switzerland SP - 512 EP - 515 KW - controls KW - SRF KW - LLRF KW - linac KW - cavity DA - 2019/10 PY - 2019 SN - 2673-7000 SN - 978-3-95450-223-3 DO - doi:10.18429/JACoW-NAPAC2019-TUPLH17 UR - http://jacow.org/napac2019/papers/tuplh17.pdf ER -