INITIAL TESTS OF NEW ELECTRON AND PHOTON BEAM POSITION MONITOR ELECTRONICS AT ADVANCED PHOTON SOURCE

Measurements were done at Advanced Photon Source in sector 35 with Libera Brilliance+, connected to S35A:P0 and S35B:P0 buttons. The photon beam position was measured downstream of the 35-ID source point using Libera Photon in horizontal/vertical configuration. Top-up injections were recorded simultaneously on both units, providing details about the electron and photon beam motions before, during and after injection in storage ring and beamline. FFT spectrums were compared from current bsp-100 bpm (APS made) electronics and both new instruments. This article discusses the calibration procedure for electron and photon beam position monitors and results of measurements.