Simulations of Beam Chopping for Potential Upgrades of the SNS LEBT Chopper

Conference · Wed May 01 00:00:00 EDT 2019

OSTI ID:1831713

Han, Baoxi  ^[1]; Peplov, Vladimir  ^[1]; Welton, Robert F.  ^[1]; Saethre, Robert  ^[1]; Murray Jr, Syd ^[1]; Pennisi, Terry ^[1]; Stinson, Chris M. ^[1]; Stockli, Martin P.  ^[1]

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1. ORNL

The LEBT chopper is a critical element of the SNS accelerator system. In this work, the benefit of increasing the chopping voltage amplitude for the present chopping pattern is shown with beam simulations, and an ongoing hardware upgrade of the chopper pulser units is discussed. In addition, with the prospect of higher voltage capability of the new pulser design, two alternative chopping patterns which reduce the switching frequency of the chopper pulsers down to 1/2 or 1/4 of the present chopping pattern, are also explored with beam simulations.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1831713
• Resource Relation: Conference: 13th International Computational Accelerator Physics Conference (ICAP'18) - Key West, Florida, United States of America - 10/20/2018 8:00:00 AM-10/24/2018 4:00:00 AM
• Country of Publication: United States
• Language: English