The Wide-Field-of-view Cherenkov Telescope Array (WFCTA) is designed to detect Cherenkov light and fluorescence produced in the atmosphere by high-energy cosmic rays and gamma rays through extensive air showers (EAS). Utilizing the unique reconfigurable design of its telescopes and a phased array layout, WFCTA operates in synergy with the KM2A and WCDA arrays to achieve precise multi-parameter measurements and energy segmentation. This capability allows for the accurate determination of the energy spectrum of cosmic ray components.

The system incorporates a spherical reflecting mirror composed of multiple lenses, with the reflected light captured by a 5 m² spherical aluminized mirror and focused onto a silicon photomultiplier (SiPM) camera featuring a 32 × 32 pixel array positioned at the focal plane. Each telescope offers a field of view of 16° × 16°, with a angular size of 0.5° × 0.5°, enabling detailed and high-precision observations.