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TY - CONF AU - Banerjee, N. AU - Dobbins, J. AU - Furuta, F. AU - Hall, D.L. AU - Hoffstaetter, G.H. AU - Liepe, M. AU - Quigley, P. AU - Smith, E.N. AU - Veshcherevich, V. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - Microphonics Studies of the CBETA Linac Cryomodules J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - The Cornell BNL ERL Test Accelerator (CBETA) incorporates two SRF linacs; one for its injector and another for the energy recovery loop. Microphonics in both the cryomodules play a crucial role in determining the energy stability of the electron beam in high current operation. We have measured vibrations and frequency detuning of the SRF cavities and determined that the cryogenic system is the major source of microphonics in both cryomodules. In this paper we discuss these measurements and demonstrate an Active Microphonics Compensation system implemented using fast piezo-electric tuners which we incorporated in our Low Level RF control system to be used in routine operation. PB - JACoW CP - Geneva, Switzerland SP - 1138 EP - 1141 KW - cavity KW - cryomodule KW - operation KW - linac KW - SRF DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-MOPVA122 UR - http://jacow.org/ipac2017/papers/mopva122.pdf ER -