Overview of ten-year operation of the superconducting linear accelerator at the Spallation Neutron Source

Journal Article · Sat Feb 04 00:00:00 EST 2017 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2017.02.009· OSTI ID:1345779

Kim, Sang-Ho ^[1]; Afanador, Ralph ^[1]; Barnhart, Debra L. ^[1]; Crofford, Mark T. ^[1]; Degraff, Brian D. ^[1]; Doleans, Marc ^[1]; Galambos, John D. ^[1]; Gold, Steven W. ^[1]; Howell, Matthew P. ^[1]; Mammosser, John ^[1]; McMahan, Christopher J. ^[1]; Neustadt, Thomas S. ^[1]; Peters, Charles C. ^[1]; Saunders, Jeffrey W. ^[1]; Strong, William Herb ^[1]; Vandygriff, Daniel J. ^[1]; Vandygriff, D. M. ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The Spallation Neutron Source (SNS) has acquired extensive operational experience of a pulsed proton superconducting linear accelerator (SCL) as a user facility. Numerous lessons have been learned in its first 10 years operation to achieve a stable and reliable operation of the SCL. In this paper, an overview of the SNS SCL design, qualification of superconducting radio frequency (SRF) cavities and ancillary subsystems, an overview of the SNS cryogenic system, the SCL operation including SCL output energy history and downtime statistics, performance stability of the SRF cavities, efforts for SRF cavity performance recovery and improvement at the SNS, and maintenance activities for cryomodules are introduced.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
• Sponsoring Organization: USDOE Office of Science (SC)
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 1345779
• Alternate ID(s): OSTI ID: 1412012
• Journal Information: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 852, Issue C; ISSN 0168-9002
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
Superconducting linear accelerator
Superconducting radio-frequency cavity
Pulsed operation
Spallation neutron source