LCLS-II and HE Cryomodule Microphonics at CMTF at Fermilab

Conference · Thu Oct 20 00:00:00 EDT 2022 · JACoW

DOI:https://doi.org/10.18429/JACoW-NAPAC2022-MOPA24· OSTI ID:1881956

Contreras-Martinez, Crispin ^[1]; Cravatta, C. ^[1]; Chase, Brian ^[1]; Doolittle, Lawrence ^[2]; Einstein-Curtis, Joshua ^[3]; Harms, Elvin ^[1]; Holzbauer, Jeremiah ^[1]; Makara, Jerry ^[1]; Posen, Sam ^[1]; Wang, Renzhuo ^[1]

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1. Fermilab
2. LBL, Berkeley
3. RadiaSoft, Boulder; Fermilab

Microphonics causes the cavity to detune. This study discusses the microphonics of 16 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.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); RadiaSoft, Boulder; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: US Department of Energy
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1881956
• Report Number(s): FERMILAB-CONF-22-580-TD; oai:inspirehep.net:2135653; arXiv:2208.06316
• Resource Type: Conference paper
• Conference Information: Journal Name: JACoW
• Country of Publication: United States
• Language: English

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