Speaker
Zhongyuan Yao
(TRIUMF)
Description
Quality factor (Q) of SRF cavities is one of the essential parameters in continuous wave accelerator operation. Q degradation has been observed in the operation of ISAC-II superconducting heavy ion linac. Other than the well-known mechanisms, such as field emission and trapped magnetic flux, the past eight years statistics reveals gas molecules in the beam line caused measurable Q drops after a few months’ operation. This paper will describe the observations on ISAC-II linac, analyze data from operation and accidents, and discuss the results of the proof of principle tests.
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Author
Zhongyuan Yao
(TRIUMF)
Co-authors
David Kishi
(TRIUMF)
Devon Lang
(TRIUMF)
James Keir
(TRIUMF)
Johnson Cheung
(TRIUMF)
Philipp Kolb
(TRIUMF)
Robert Laxdal
(TRIUMF)
Rowan Bjarnason
(TRIUMF)
Spencer Kiy
(TRIUMF)
