Production and Test Results of Superconducting 3.9-GHz Accelerating Cavity at Fermilab

摘要

The 3rd harmonic 3.9 GHz accelerating cavity was proposed to improve beam performances for TTF-FEL facility. In the frame of collaboration Fermilab will provide DESY with a cryomodule containing a string of four cavities. In addition, a second cryomodule with one cavity will be fabricated for installation in the Fermilab photo-injector, which will be upgraded for the International Linear Collider (ILC) accelerator test facility. In this paper we will discuss the status of the cavity and coupler production and the first result of cavity tests. It is hoped that this project will be completed during the first half of 2007 and the cryomodule delivered to DESY in this time span.