Introduction to Ingot Niobium

Conference · Tue Mar 01 04:00:00 EST 2011 · AIP Conf.Proc.

DOI:https://doi.org/10.1063/1.3579219· OSTI ID:1021415

Ganapati Rao Mynen, Andrew Hutton

Superconducting radiofrequency (SRF) technology using niobium accelerating cavities was first applied at large scale in the recirculating electron linear accelerator CEBAF—the Continuous Electron Beam Accelerator Facility in Newport News, Virginia, USA, at what is now called Thomas Jefferson National Accelerator Facility, or Jefferson Lab. Building on the high quality factors and peak magnetic fields found in low residual resistivity ratio (low-RRR) solid niobium in the 1970s, Jefferson Lab has reintroduced ingot niobium technology. High tantalum content in ingot niobium is not expected to negatively impact cavity performance, but will reduce the cost of accelerator structures considerably. Optimized low-cost CW linear accelerators built with ingot niobium will show the way for future R&D and industrial applications. This paper portrays the Jefferson Lab SRF context, reviews the early history of ingot niobium technology from over a third of a century ago, explains the technical advantages of that technology's recent reintroduction, and presents the outlook for further development.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1021415
• Report Number(s): JLAB-ACC-10-1241; DOE/OR/23177-1673
• Conference Information: Journal Name: AIP Conf.Proc. Journal Volume: 1352
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
CAVITIES
CEBAF ACCELERATOR
ELECTRON BEAMS
ELECTRONS
LINEAR ACCELERATORS
MAGNETIC FIELDS
NIOBIUM
PERFORMANCE
QUALITY FACTOR
TANTALUM