The crab cavities cryomodule for SPS test

8th International Particle Accelerator Conference

Zanoni, C.^1 ; Amorim Carvalho, A.^1 ; Artoos, K.^1 ; Atieh, S.^1 ; Brodzinski, K.^1 ; Calaga, R.^1 ; Capatina, O.^1 ; Capelli, T.^1 ; Carra, F.^1 ; Dassa, L.^1 ; Dijoud, T.^1 ; Eiler, K.^1 ; Favre, G.^1 ; Freijedo Menendez, P.^1 ; Garlaschè, M.^1 ; Giordanino, L.^1 ; Jones, T.^2 ; Langeslag, S.A.E.^1 ; Leuxe, R.^1 ; Mainaud-Durand, H.^1 ; Minginette, P.^1 ; Narduzzi, M.^1 ; Rude, V.^1 ; Sosin, M.^1 ; Swieszek, J.S.^1 ; Templeton, N.^2

CERN, Geneva, Switzerland^1

STFC Daresbury Laboratory, Keckwick Lane, Warrington

WA4 4AD, United Kingdom^2

关键词: Advanced fabrication;    Fabrication strategies;    Magnetic environments;    Present status;    Quarter waves;    Safe operation;    Safety guidelines;    Thermal shields;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/874/1/012092/pdf
DOI  :  10.1088/1742-6596/874/1/012092

来源: IOP

【 摘 要 】

RF Crab Cavities are an essential part of the HL-LHC upgrade. Two concepts of such systems are being developed: the Double Quarter Wave (DQW) and the RF Dipole (RFD). A cryomodule with two DQW cavities is in advanced fabrication stage for the tests with protons in the SPS. The cavities must be operated at 2 K, without excessive heat loads, in a low magnetic environment and in compliance with CERN safety guidelines on pressure and vacuum systems. A large set of components, such as a thermal shield, a two layers magnetic shield, RF lines, helium tank and tuner are required for the successful and safe operation of the cavities. The sum of all these components with the cavities and their couplers forms the cryomodule. An overview of the design and fabrication strategy of this cryomodule is presented. The main components are described along with the present status of cavity fabrication and processing and cryomodule assembly. The lesson learned from the prototypes and first manufactured systems are also included.