Real-Time Data Acquisition and Visualization in Plasma Control System

The plasma produced in Tokamak experiment is extremely unstable. In order to realize effective plasma control, physical experts need to know the real time plasma data, such as position, shape, current, and other parameters. The paper proposes a method of acquiring plasma data from the Plasma Control System (PCS) by reflective memory (RFM). Once the PCS produces plasma data, the RFMs share the data in real time. Finally the shared data are visualized on the console without disturbing the control system. The system has been successfully applied to help scientists observe and analyze plasma activity.