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Commissioning of the SNS front-end systems at Berkeley Lab

Description: Construction of a 2.5-MeV linac injector, the Front-End (FE) for the Spallation Neutron Source (SNS) project, was completed in the spring of 2002. Of the major FE subsystems, the rf-driven H- ion source, the electrostatic LEBT, and the first of four RFQ modules had been commissioned by the spring of 2001, and commissioning of the remaining RFQ modules as well as the full system including the elaborate MEBT was carried out in Jan. through May, 2002. The Front End will be shipped to Oak Ridge, st… more
Date: May 1, 2002
Creator: Keller, R.; Ayers, J. J.; Doolittle, L.; Greer, J. B.; Lewis, S.; Lionberger, C. et al.
Partner: UNT Libraries Government Documents Department
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Results of the SNS front end commissioning at Berkeley Lab

Description: The Front-End Systems (FES) for the Spallation Neutron Source (SNS) project comprise an rf-driven H{sup -} ion source, an electrostatic 2-lens LEBT, a 2.5 MeV RFQ, followed by a 14-quadrupole, 4-rebuncher MEBT including traveling-wave fast choppers. The nominal 2.5 MeV H{sup -} beam has a current of 38 mA at a repetition rate of 60 Hz and 1 ms pulse length, for a macro duty-factor of 6%, and is chopped at a rate of approximately 1 MHz with a mini duty-factor of 68%. The normalized rms beam emit… more
Date: August 16, 2002
Creator: Ratti, A.; Ayers, J. J.; Doolittle, L.; Greer, J. B.; Keller, R.; Lewis, S. et al.
Partner: UNT Libraries Government Documents Department
open access

Progress with the SNS front-end systems

Description: The Front-End Systems (FES) of the Spallation Neutron Source (SNS) project have been described in detail elsewhere [1]. They comprise an rf-driven H{sup {minus}} ion source, electrostatic LEBT, four-vane RFQ, and an elaborate MEBT. These systems are planned to be delivered to the SNS facility in Oak Ridge in June 2002. This paper discusses the latest design features, the status of development work, component fabrication and procurements, and experimental results with the first commissioned beam… more
Date: May 1, 2001
Creator: Keller, R.; Abraham, W.; Ayers, J. J.; Cheng, D. W.; Cull, P.; DiGennaro, R. et al.
Partner: UNT Libraries Government Documents Department
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