Design, prototyping, and testing of a compact superconducting double quarter wave crab cavity
Binping Xiao, Luís Alberty, Sergey Belomestnykh, Ilan Ben-Zvi, Rama Calaga, Chris Cullen, Ofelia Capatina, Lee Hammons, Zenghai Li, Carlos Marques, John Skaritka, Silvia Verdú-Andres, Qiong Wu
DOI 10.1103/PhysRevSTAB.18.041004 · Physical Review Special Topics - Accelerators and Beams
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Abstract
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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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