ANL, Lemont, Illinois, USA
To measure the swap-out injection/extraction bunches of the Advanced Photon Source Upgrade (APS-U) storage ring, single-pass Beam Position Monitor (BPM) electronics will be installed in the first sectors after the injection with fast RF switches. The fast RF switch will select a bunch signal to be processed by the single pass BPM electronics, and have the remaining bunches processed by the regular BPM electronics. In addition to measuring the swap-out bunch during injection, the setup will be able to carry out various other measurements of any selected single bunch (or bunches). This paper presents the performance of the fast RF switches and related electronics.
