LCLS-II and HE Cryomodule Microphonics at CMTF in Fermilab*

C Contreras-Martinez; E Harms; C Cravatta; J Holzbauer; S Posen; L Doolittle; B Chase; J Einstein-Curtis; J Makara; R Wang

doi:10.48550/arxiv.2208.06316

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LCLS-II and HE Cryomodule Microphonics at CMTF in Fermilab*

https://doi.org/10.48550/arxiv.2208.06316

LCLS-II and HE Cryomodule Microphonics at CMTF in Fermilab*

Aug 12, 2022
arXiv (Cornell University)
C Contreras-Martinez +9 more

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Abstract

Microphonics causes the cavity to detune. This study discusses the microphonics of sixteen 1.3 GHz cryomodules, 14 for LCLS-II and 2 for LCLS-II HE tested at CMTF. The peak detuning, as well as the RMS detuning for each cryomodule, will be discussed. For each cryomodule, the data was taken with enough soaking time to prevent any thermalization effects which can show up in the detuning. Each data capture taken was 30 minutes or longer and sampled at 1 kHz.