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Title LHC Beam Diffusion Dependence on RF Noise: Models and Measurements Submitted 29-NOV-09 00:59 (UTC)
Classification 07 Accelerator Technology Modified 19-MAY-10 06:35 (UTC)
Presentation Poster
Presenter Themis Mastorides Paper ID TUPEA062
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Author(s) Themis Mastorides, John Fox, Claudio Hector Rivetta, Daniel Van Winkle (SLAC, Menlo Park, California), Philippe Baudrenghien, Andrew Butterworth, John Cornelis Molendijk (CERN, Geneva)
Abstract Radio Frequency (RF) accelerating system noise and non-idealities can have detrimental impact on the LHC performance through longitudinal motion and longitudinal emittance growth. A theoretical formalism has been developed to relate the beam and RF loop dynamics with the bunch length growth [1]. Measurements were conducted at LHC to validate the formalism, determine the performance limiting RF components, and provide the foundation for beam diffusion estimates for higher energies and intensities. A brief summary of these results is presented in this work.
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Footnote [1] T. Mastorides et. al., "RF system models for the LHC with Application to
Longitudinal Dynamics", prepared for submission to Physical Review ST-AB.
Funding Agency This work supported by the DOE through the US LHC Accelerator Research Program (LARP) and under contract #DE-AC02-76SF00515.

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