EPICS IOC development for high-speed and high-resolution imaging with the AXIS camera

At SLAC National Accelerator Laboratory, we recently integrated a high-performance AXIS back-illuminated CMOS camera with Gpixel GSENSE6060BSI sensor into the EPICS control system to support advanced imaging and spectroscopy applications. The AXIS camera features a 6144 × 6144 pixel sensor with 16-bit depth per pixel, producing approximately 75 MB per image. With a maximum frame rate of 26 frames per second at full resolution, the system must manage a sustained data throughput of nearly 1.9 GB/s. This paper presents the development and deployment of EPICS IOCs designed to interface with the AXIS camera, highlighting software optimization strategies to efficiently handle the substantial data volume. By leveraging the EPICS areaDetector framework, specifically the ADGenICam and ADEuresys modules, we expedited the integration process while ensuring full compatibility with the Euresys frame grabber hardware. Key topics include configuring CPU affinity and priority, implementing multi-threaded data pipelines for plugins, and limiting polling features to maintain stable, real-time image acquisition. This work demonstrates practical strategies for supporting high-speed imaging systems within an EPICS environment and offers a guide for similar large-scale instrumentation projects.