Superconducting Cavity Development for the CEBAF Upgrade

Conference · Mon Mar 01 04:00:00 EST 1999

DOI:https://doi.org/10.1109/PAC.1999.795406· OSTI ID:755075

Campisi, I E; Delayen, J R; Doolittle, L R; Kneisel, P; Mammosser, J; Phillips, L

Long-term plans for CEBAF at Jefferson Lab call for achieving 12 GeV in the middle of the next decade and 24 GeV after 2010. In support of these plans, an Upgrade Cryomodule, capable of providing more than twice the operating voltage of the existing CEBAF modules within the same length, is being developed. In particular, this requires the development of superconducting cavities capable of consistently operating at gradients above 12 MV/m and Q {approximately} 10{sup 10}. We have engaged in a complete review of all the processes and procedures involved in the fabrication and assembly of cavities, and are modifying our chemical processing, cleaning, and assembly facilities. While we have retained the cell shape of existing CEBAF cavities, the new superconducting structure will be substantially different in several respects, such as the higher-order-modes damping and the fundamental power coupling systems. Design features and experimental results will be presented.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 755075
• Report Number(s): DOE/ER/40150--1421; JLAB-ACT-99-01
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
CEBAF ACCELERATOR
CRYOGENICS
DESIGN
FABRICATION
GEV RANGE 10-100
MODIFICATIONS
RF SYSTEMS
SUPERCONDUCTING CAVITY RESONATORS