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RIS citation export for WEPRB098: Cryogenic RF Performance of Double-Quarter Wave Cavities Equipped with HOM Filters

AU  - Verdú-Andrés, S.
AU  - Ben-Zvi, I.
AU  - Burt, G.
AU  - Calaga, R.
AU  - Capatina, O.
AU  - Huque, N.A.
AU  - Li, Z.
AU  - McEwen, E.A.
AU  - Mitchell, J.A.
AU  - Park, H.
AU  - Powers, T.
AU  - Ratti, A.
AU  - Wu, Q.
AU  - Xiao, B.P.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Cryogenic RF Performance of Double-Quarter Wave Cavities Equipped with HOM Filters
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Crab cavities are one of the several components included in the luminosity upgrade of the Large Hadron Collider (HL-LHC). The cavities have to provide a nominal deflecting kick of 3.4 MV per cavity while the cryogenic load per cavity stays below 5 W. Cold RF tests confirmed the required performances in bare cavities, with several cavities exceeding the required voltage by more than 50%. However, the first tests of a Double-Quarter Wave (DQW) cavity with one out of three HOM filters did not reach the required voltage. The present paper describes the studies and tests conducted on a DQW cavity with HOM filter to understand the limiting factor. The recipe to meet the performance specification and exceed the voltage requirement by more than 35% is discussed.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3043
EP  - 3046
KW  - cavity
KW  - operation
KW  - cryogenics
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPRB098
UR  - http://jacow.org/ipac2019/papers/weprb098.pdf
ER  -