Performance of Production SRF Cavities for CEBAF

Conference · Tue Jun 01 04:00:00 EDT 1993

OSTI ID:954358

Reece, Charles; Benesch, Jay; Mammosser, John; Kneisel, Peter; Kushnick, Peter; Powers, Thomas

Construction for 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 into hermetic pairs and completed rf testing at 2.0 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=2.4 * 10^9 at 5 MV/m, the usual limiting 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.

• Research Organization: Thomas Jefferson Lab National Accelerator Facility
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 954358
• Report Number(s): CEBAF-PR-93-18; DOE/ER/40150-212
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
CAVITIES
CEBAF ACCELERATOR
CONSTRUCTION
ELECTRON BEAMS
LINEAR ACCELERATORS
PERFORMANCE
PRODUCTION
QUENCHING
TESTING