Development and Demonstration of Real-Time High-Speed Visible Image Diagnostic on EAST Tokamak

Visible image diagnostics is one of the routine diagnostics in tokamak devices, with numerous applications for the safe operation and feedback control of these devices. This article presents the development of a real-time high-speed visible image diagnostic system for the EAST device, which integrates an optical system and a high-speed camera with the tokamak control system, along with real-time high-speed acquisition and multithreaded processing software. This system achieves low-latency, real-time image diagnosis of up to 2000 frames/s with a full resolution of $1920\times 1080$ along with real-time image processing capabilities. The system’s functionality and performance were tested on the EAST device, and its application and effective processing capabilities were demonstrated using the boundary control points reconstruction task as an example. For the first time, feedback control of plasma boundary control points has been implemented on the EAST tokamak using image diagnostic. The test results indicate that the proposed system meets the requirements of tokamak devices for visible image diagnostic and can be applied to various real-time image diagnostic tasks.