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TY - UNPB AU - Banerjee, N. AU - Hoffstaetter, G.H. AU - Liepe, M. AU - Quigley, P. ED - Meseck, Atoosa ED - McAteer, Meghan ED - Schaa, Volker R.W. ED - V\xF6lker, Jens TI - Passive and Active Control of Microphonics at CBETA and Elsewhere J2 - Proc. of ERL2019, Berlin, Germany, 15-20 September 2019 CY - Berlin, Germany T2 - ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs T3 - 63 LA - english AB - Superconducting Radio Frequency (SRF) cavities operating with large loaded quality factors is the natural choice for Energy Recovery Linacs which operate at negligible beam loading. While this leads to lower RF power requirements, the stability of the accelerating field is strongly influenced by peak microphonics detuning. In this talk, I will discuss various methods of passively suppressing vibrations used in various facilities using low bandwidth SRF systems, with special reference to CBETA, a multi-turn SRF ERL being commissioned at Cornell University. I will also describe our active microphonics control system based on a modified narrow band Active Noise Control (ANC) algorithm and compare it with schemes being explored in other machines. PB - JACoW Publishing CP - Geneva, Switzerland ER -