Speaker
Victor Smaluk
(Brookhaven National Laboratory)
Description
The Beam Accumulator Ring (BAR) in the EIC injector chain accumulates charge from multiple linac pulses to provide the high-intensity polarized electron beam required for ESR injection. At the design single-bunch charge, beam–impedance effects become a key performance and stability limit, so initial broadband-resonator estimates must be refined with a realistic impedance budget. We use the 3D EM solver GdfidL to compute the longitudinal and transverse geometric impedances of the main vacuum components and combine them with the resistive-wall contribution in a ring-wide model.
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Author
Aamna Khan
(Brookhaven National Laboratory)
Co-authors
Victor Smaluk
(Brookhaven National Laboratory)
Michael Seegitz
(National Synchrotron Light Source II)
Robert Todd
(Brookhaven National Laboratory)