Status of the SNS superconducting linac and future plan

Journal Article · Tue Jan 01 04:00:00 EST 2008 · Journal - Korean Physical Society

DOI:https://doi.org/10.3938/jkps.52.714· OSTI ID:1037669

Kim, Sang-Ho ^[1]

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1. ORNL

The use of superconducting radiofrequency (SRF) cavities in particle accelerator is becoming more widespread. Among the projects that make use of that technology is the Spallation Neutron Source, where H- ions are accelerated to about 1 GeV, mostly making use of niobium elliptical cavities. SNS generates neutrons by the spallation reaction with the accelerated short (about 700 ns) sub-bunches of protons, which will in turn allow probing structural and magnetic properties of new and existing materials. The SNS superconducting linac is the largest application of RF superconductivity to come on-line in the last decade and has been operating with beam for almost two years. As the rst operational pulsed superconducting linac, many of the aspects of its performance were unknown and unpredictable. A lot of experiences and data have been gathered on the pulsed behavior of cavities and cryomodules at various repetition rates and at various temperatures during the commissioning of its components and beam operations. This experience is of great value in determining future optimizations of SNS as well in guiding in the design and operation of future pulsed superconducting linacs. The testing of the superconducting cavities, the operating experience with beam, the performance of the superconducting linac and the future plans will be presented.

• Research Organization: Oak Ridge National Laboratory (ORNL); Spallation Neutron Source
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1037669
• Journal Information: Journal - Korean Physical Society, Journal Name: Journal - Korean Physical Society Journal Issue: 3 Vol. 52; ISSN 0374-4884
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
COMMISSIONING
DESIGN
LINEAR ACCELERATORS
MAGNETIC PROPERTIES
NEUTRON SOURCES
NEUTRONS
NIOBIUM
PERFORMANCE
PROTONS
RF SYSTEMS
SPALLATION
SUPERCONDUCTING CAVITY RESONATORS
SUPERCONDUCTIVITY
TESTING