Both the HER and LER of PEP-II use broadband longitudinal multi-bunch feedback systems which process all coupled-bunch modes in the machine spanning a 119 MHz bandwidth. Roughly 1 MHz of this bandwidth includes modes driven by impedance related to the RF cavity fundamental.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.