3.5-cell large grain niobium superconducting cavity for a dc superconducting rf photoinjector
Shengwen Quan, Feng Zhu, Jiankui Hao, Xiangyang Lu, Baocheng Zhang, Wencan Xu, Kui Zhao
DOI 10.1103/PhysRevSTAB.13.042001 · Physical Review Special Topics - Accelerators and Beams
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We have developed a new compact high average current dc superconducting rf (DC-SRF) photoinjector. A 3.5-cell superconducting cavity with a mid-beta structure is the key component of the DC-SRF photoinjector. Herein, we present the new design, fabrication, and vertical test results of the 3.5-cell large grain niobium superconducting cavity. After preliminary surface preparation and room temperature rf measurements, the cavity was sent to Jefferson Lab for a vertical cold test. The gradient of the cavity reaches 23.5 MV/m, and the Q0 value is higher than 1.2×1010. The high-quality 3.5-cell cavity will guarantee the good performance of the DC-SRF photoinjector.
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. | 9.2 | Pressure unresolved | unknown |
Similar papers
Vertical electropolishing for 1.3 GHz single- and nine-cell superconducting niobium cavities: A parametric optimization and rf performance
similarity 0.94Vijay Chouhan et al.
Source status unknown — claims are unverified
Effect of mild baking on superconducting niobium cavities investigated by sequential nanoremoval
similarity 0.94A. Romanenko et al.
Source status unknown — claims are unverified
Performance analysis of the European X-ray Free Electron Laser 3.9 GHz superconducting cavities
similarity 0.93M. Bertucci et al.
Source status unknown — claims are unverified
Three-Dimensional Superconducting Resonators at T<20 mK with Photon Lifetimes up to τ=2 s
similarity 0.93A. Romanenko et al.
Source status unknown — claims are unverified
Laser polishing of niobium for superconducting radio-frequency accelerator applications
similarity 0.93Liang Zhao et al.
Source status unknown — claims are unverified
Operation of the 56 MHz superconducting rf cavity in RHIC with higher order mode damper
similarity 0.93Qiong Wu et al.
Source status unknown — claims are unverified