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Instabilities driven by higher-order modes in an RF system with a passive higher harmonic cavity
A passive higher-harmonic cavity may be used to suppress parasitic longitudinal coupled-bunch instabilities. Our analytic modeling already predicts whether a parasitic higher-order mode (HOM) will cause longitudinal ...
Longitudinal broadband impedance of the Aladdin vacuum chamber and new dipole chamber design
An estimate of the longitudinal broadband impedance is obtained by summing estimated impedance contributions from the radiofrequency (RF) cavities, bellows, beam position monitors, Q electrode, vacuum chamber transitions, ...
Instability modeling for passive harmonic-cavity operation at MAXlab
Instability modeling is performed for passive harmonic-cavity operation at MAXlab. For the MAX-II 1.5 GeV ring, we consider the 100-MHz/500-MHz RF system now being constructed with three fundamental cavities and one harmonic ...
A 2.1-GeV ring design for SRC
A design for a twelve-sided 2.1-GeV electron storage ring is obtained. The design utilizes the combined-function magnet approach of the Max-IV design for 1.5-GeV and 3-GeV rings. The 2.1-GeV ring has an emittance of 1.5 ...