@inproceedings{a1ccc9f16b804ee6aa6eb88169d92193,
title = "Performance of production SRF cavities for CEBAF",
abstract = "Construction of the Continuous Electron Beam Accelerator Facility recirculating linac represents the largest scale application of superconducting rf (SRF) technology to date. Over 250 of the eventual 338 SRF 1497 MHz cavities have been assembled into hermetic pairs and completed rf testing at 2.9 K. Among these. 52% demonstrated usable gradients greater than 10 MV/m. Although the rf performance characteristics well exceed the CEBAF baseline requirements of Q0 =1.4×109 at 5 MV/m, the usual limiting phenomena are encountered: field emission, quenching, Q-switching, and occasional multipacting. An analysis of the occurrence conditions and severity of these phenomena during production cavity testing is presented. The frequency with which performance is limited by quenching suggests that additional material advances may be required for applications which require the reliable achievement of accelerating gradients of more than 15 MV/m. The distributions of frequency and Q for a higher-order mode are also presented.",
author = "C. Reece and J. Benesch and P. Kneisel and P. Kushnick and J. Mammosser and T. Powers",
year = "1993",
language = "English",
isbn = "0780312031",
series = "Proceedings of the IEEE Particle Accelerator Conference",
publisher = "Publ by IEEE",
pages = "1016--1018",
booktitle = "Proceedings of the IEEE Particle Accelerator Conference",
note = "Proceedings of the 15th Biennial Particle Accelerator Conference ; Conference date: 17-05-1993 Through 20-05-1993",
}