Experimental performance evaluation of ILSF BPM data acquisition system

•BPM system measures electron beam position inside vacuum chamber.•BPM system is including BPM electrodes (sensor) and BPM data acquisition system.•Paper mainly is discussed BPM data acquisition system and its evaluation.•BPM data acquisition is designed based on under-sampling method (130MHz ADC& FPGA)•Developed BPM data acquisition satisfy ILSF precision and resolution requirements. In order to have optimal functioning of particle accelerators, the control system requires a precise position monitoring of the beam and the performance of the concerning data acquisition system should be evaluated accurately. A configurable beam position monitoring data acquisition system is designed based on under-sampling theory in Iranian Light Source Facility. To evaluate the performance of this data acquisition system, after testing with synthetic signals, it is experimentally evaluated at ALBA accelerator facility. The measurement results show the precision of 0.54μm in beam position monitoring. The measured resolution is around 0.1μm due to the wide dynamic range of −90dBm. Our overall results are indicative of the fact that the performance of beam position monitoring data acquisition system is quite well for the ILSF.