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Persistent URL http://purl.org/net/epubs/work/54504
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Record Id 54504
Title Higher order modes in third harmonic cavities at FLASH
Abstract Transverse modes in the 3.9 GHz cavities, designed and fabricated by FNAL, are reported on. These modes have the potential to cause significant emittance dilution if they are not sufficiently suppressed. Recent probebased-experiments have indicated significant discrepancies between modes predicted in stand-alone 9- cell cavities compared to those in 4-cavity modules. We employ the code HFSS [1] to analyze these modes, coupled through beam tubes whose cut-off is above that of the first dipole band.
Organisation STFC
Keywords Physics , SRF , XFEL , GSM , HOM , FLASH , Third harmonic cavities
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Language English (EN)
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Paper In Conference Proceedings In 25th Linear accelerator conference (LINAC10), Tsukuba, Japan, 12-17 Sep 2010, . THP012.pdf