Development of a Virtual Tokamak platform

•Virtualization of KSTAR main device based on game graphic technology.•Development of data framework underlying the virtual platform to process various fusion data.•Development of real time EFIT monitoring capability on the virtual platform.•Integration of NBI, RMP, and ECRH simulations on the virtual platform. We develop a virtual tokamak platform choosing KSTAR tokamak as the target device. The Unity® game engine is employed to visualize the KSTAR main device. It is shown that with a proper reduction of the CAD data, a fast and interactive display of the device can be achieved in personal computer. We also develop a data processing framework underlying the platform, which can deal with various data from tokamak experiment and simulation. Three plasma simulations are selected and integrated into the virtual platform: Monte-Carlo simulation of neutral beam injection (NBI), ray tracing simulation of electron cyclotron resonance heating (ECRH), and 3 dimensional resonant magnetic field perturbation simulation. We demonstrate that the platform can be used as a tool for monitoring and analyzing fusion experiment in virtual environment.