Design and Implementation of DAQ System for HEPS-BPIX4

X-ray detectors are crucial components for advanced photon sources. To meet the demand for X-ray detectors at the high-energy photon source (HEPS), the Institute of High Energy Physics (IHEP), Chinese Academy of Sciences, has initiated the indigenous development of silicon pixel detectors (HEPS-Beijing Pixel, HEPS-BPIX) over the past decade and is currently working on the fourth-generation detector (HEPS-BPIX4). The data acquisition system (DAQ) constitutes a pivotal component of the detector system. It is responsible for reading out the data signals from the electronics, assembling and processing the data according to the experimental requirements, forming valid and complete frame data, and storing them in a different format. Furthermore, the DAQ system is typically tasked with controlling the fetching process, monitoring the experimental status in real time, and online displaying the experimental data if necessary. Considering the large detection area, high spatial resolution, wide dynamic range, and high frame rate acquisition of the HEPS-BPIX4, a single-server based HEPS-BPIX4 6M DAQ system, featuring high integration, has been meticulously designed and implemented. This DAQ system is comprehensive in functionality and exceptional in performance, having been jointly tested with a single detector module to ensure its reliability and effectiveness.