Abstract
An electron scanner has been installed in the accumulator ring of the Spallation Neutron Source (SNS). The nondestructive device permits turn-by-turn measurements of the horizontal and vertical profiles of the proton beam during accumulation with fine longitudinal resolution. In this study the device is used to investigate the source of transverse coupling in the SNS ring and to understand the impact of space charge on the evolution of the coupled beam. We present experimental observations of coupling dependent on tune, injected intensity, and accumulated intensity for a simplified accumulation scenario with no RF and no injection painting. We also investigate the effects of varying the skew quadrupoles and tune for beams with the SNS production-style ring injection and ring RF patterns.
| Original language | English |
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| Title of host publication | HB 2016 - Proceedings of the 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams |
| Publisher | Joint Accelerator Conferences Website (JACoW) |
| Pages | 351-356 |
| Number of pages | 6 |
| ISBN (Electronic) | 9783954501854 |
| State | Published - Aug 1 2016 |
| Event | 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams, HB 2016 - Malmo, Sweden Duration: Jul 3 2016 → Jul 8 2016 |
Publication series
| Name | HB 2016 - Proceedings of the 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams |
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Conference
| Conference | 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams, HB 2016 |
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| Country/Territory | Sweden |
| City | Malmo |
| Period | 07/3/16 → 07/8/16 |
Funding
*ORNL is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy. This research was supported by the DOE Office of Science, Basic Energy Science, Scientific User Facilities. †[email protected]