A novel design of superconducting Crab Cavity was proposed and designed at Brookhaven National Laboratory. The new cavity shape is a Double Quarter Wave or DQWCC. After fabrication and surface treatments, the niobium proof-of-principle cavity was cryogenically tested in a vertical cryostat. The cavity is extremely compact yet has a low frequency of 400 MHz, an essential property for service for the Large Hadron Collider luminosity upgrade. The electromagnetic properties of the cavity are also well matched for this demanding task. The demonstrated deflecting voltage of 4.6 MV is well above the requirement for a crab cavity in the future High Luminosity LHC of 3.34 MV. In this paper we present the design, prototyping and test results of the DQWCC.
@article{arxiv.1502.04088,
title = {Design, prototyping and testing of a compact superconducting double quarter wave crab cavity},
author = {Binping Xiao and Luís Alberty and Sergey Belomestnykh and Ilan Ben-Zvi and Rama Calaga and Chris Cullen and Ofelia Capatina and Lee Hammons and Zenghai Li and Carlos Marques and John Skaritka and Silvia Verdú-Andres and Qiong Wu},
journal= {arXiv preprint arXiv:1502.04088},
year = {2015}
}