RF Power Detector/Monitor Upgrade for the 500MHz Systems at the ALS (2003)
Several systems rely on the accurate and linear detection of 500 MHz signals, (the fundamental frequency of both the Booster Ring and Storage Ring) over a dynamic range in excess of 25dB. Prior to...
Hom dampers for ALS storage ring RF cavities (2003)
Kwiatkowski, S., Baptiste, K., Byrd, J., DeSantis, S., Julian, J., Low, R., ...
The main source of narrowband impedance in the Advanced Light Source (ALS) are higher order modes (HOMs) of the two main RF and three third harmonic cavities. These HOMs drive longitudinal and...
The Amplitude and Phase Control of the ALS Storage Ring RF System (1998)
C. C. Lo, B. Taylor, K. Baptiste
A 500MHz, 300KW Klystron power amplifier provides RF power to the ALS Storage Ring. In order to accommodate the amplitude and phase changes during beam stacking and decay, which demand continuously...