Design, prototyping, and testing of a compact superconducting double quarter wave crab cavity

作者：Xiao Binping^*; Alberty Luis; Belomestnykh Sergey; Ben Zvi Ilan; Calaga Rama; Cullen Chris; Capatina Ofelia; Hammons Lee; Li Zenghai; Marques Carlos; Skaritka John; Verdu Andres Silvia; Wu Qiong

来源：Physical Review Special Topics - Accelerators and Beams, 2015, 18(4): 041004.

DOI：10.1103/PhysRevSTAB.18.041004

We proposed a novel design for a compact superconducting crab cavity with a double quarter wave (DQWCC) shape. After fabrication and surface treatments, this niobium proof-of-principle cavity was tested cryogenically in a vertical cryostat. The cavity is extremely compact yet has a low frequency of 400 MHz, an essential property for service in the Large Hadron Collider luminosity upgrade. The cavity's electromagnetic properties are well suited for this demanding task. The demonstrated deflecting voltage of 4.6 MV is well above the required 3.34 MV for a crab cavity in the future High Luminosity LHC. In this paper, we present the design, prototyping, and results from testing the DQWCC.

• 出版日期2015-4-28