Introduction to Ingot Niobium

Journal Article · Thu Mar 31 04:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3580650· OSTI ID:21516675

Myneni, Ganapati Rao; Hutton, Andrew ^[1]

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1. Thomas Jefferson National Accelerator Facility 12000 Jefferson Avenue Newport News, VA 23606 (United States)

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 and 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.

• OSTI ID: 21516675
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1352; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ACCELERATOR FACILITIES
ACCELERATORS
BEAMS
CAVITIES
CEBAF ACCELERATOR
DIMENSIONLESS NUMBERS
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FREE ELECTRON LASERS
LASERS
LEPTON BEAMS
LEPTONS
LINEAR ACCELERATORS
MAGNETIC FIELDS
METALS
NIOBIUM
PARTICLE BEAMS
POLISHING
QUALITY FACTOR
RADIATIONS
RADIOWAVE RADIATION
REFRACTORY METALS
SOLIDS
SURFACE FINISHING
TANTALUM
TRANSITION ELEMENTS