The dynamic synthesis time-lag control for the 1.3 GHz LCLS-II Cryomodule test at Fermilab

Journal Article · 28 June 2020 · IOP Conference Series. Materials Science and Engineering (Online)

DOI: https://doi.org/10.1088/1757-899x/755/1/012072 · OSTI ID:1648560

Pei, Liujin ^[1]; Hansen, Ben ^[1]; Theilacker, Jay  ^[1]; Pei, Qing ^[1]

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1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

The 1.3GHz LCLS-II Cryomodule (CM) has 8 cavities and each cavity has 9 RF cells and 80W heater. The 1.3GHz LCLS-II CM is 12.2-meter-long and contains a total 241.3 liters (equivalent liquid) of liquid helium, which is filling up by the 4KW@2.0K cryogenic plant at the Fermilab Cryomodule Test Facility (CMTF). The dynamic synthesis 2K cryogenic control system is built to control the long time-lag, unstable CM cryogenic system, under different modes operations. A report on the results obtained from the dynamic synthesis long time-lag control in the CMTF 1.3GHz CM test will be presented.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1648560
• Report Number(s): FERMILAB-CONF--20-447-TD; oai:inspirehep.net:1808214
• Journal Information: IOP Conference Series. Materials Science and Engineering (Online), Journal Name: IOP Conference Series. Materials Science and Engineering (Online) Journal Issue: 1 Vol. 755; ISSN 1757-899X
• Publisher: IOP PublishingCopyright Statement
• Country of Publication: United States
• Language: English