Coherent beam-beam effects observation and mitigation at the RHIC collider
Abstract
In polarized proton operation in RHIC coherent beam-beam modes are routinely observed with beam transfer function measurements in the vertical plane. With the existence of coherent modes a larger space is required in the tune diagram than without them and stable conditions can be compromised for operation with high intensity beams as foreseen for future luminosity upgrades. We report on experiments and simulations carried out to understand the existence of coherent modes in the vertical plane and their absence in the horizontal plane, and investigate possible mitigation strategies.
- Authors:
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
- Sponsoring Org.:
- USDOE SC OFFICE OF SCIENCE (SC)
- OSTI Identifier:
- 1044753
- Report Number(s):
- BNL-96676-2012-CP
R&D Project: KBCH139; 08312; KB0202011; TRN: US1203486
- DOE Contract Number:
- DE-AC02-98CH10886
- Resource Type:
- Conference
- Resource Relation:
- Conference: 2012 International Particle Accelerator Conference (IPAC 2012); New Orleans, LA; 20120520 through 20120525
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; ACCELERATORS; LUMINOSITY; MITIGATION; PROTONS; TRANSFER FUNCTIONS; BROOKHAVEN RHIC; relativistic heavy ion collider
Citation Formats
White, S, Fischer, W, and Luo, Y. Coherent beam-beam effects observation and mitigation at the RHIC collider. United States: N. p., 2012.
Web.
White, S, Fischer, W, & Luo, Y. Coherent beam-beam effects observation and mitigation at the RHIC collider. United States.
White, S, Fischer, W, and Luo, Y. 2012.
"Coherent beam-beam effects observation and mitigation at the RHIC collider". United States. https://www.osti.gov/servlets/purl/1044753.
@article{osti_1044753,
title = {Coherent beam-beam effects observation and mitigation at the RHIC collider},
author = {White, S and Fischer, W and Luo, Y},
abstractNote = {In polarized proton operation in RHIC coherent beam-beam modes are routinely observed with beam transfer function measurements in the vertical plane. With the existence of coherent modes a larger space is required in the tune diagram than without them and stable conditions can be compromised for operation with high intensity beams as foreseen for future luminosity upgrades. We report on experiments and simulations carried out to understand the existence of coherent modes in the vertical plane and their absence in the horizontal plane, and investigate possible mitigation strategies.},
doi = {},
url = {https://www.osti.gov/biblio/1044753},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun May 20 00:00:00 EDT 2012},
month = {Sun May 20 00:00:00 EDT 2012}
}
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