Measuring gating time of gated image intensifier

A method for measuring the gating time of the gated image intensifier by using a CCD to record the time delay produced by the ultra-fast laser pulse and the fiber array is presented. The feasibility of the method is analyzed, and the measurement system is built. The gating time of the gated image intensifier for the ultra-high-speed photoelectronic framing camera is measured and the experimental images corresponding to the gating time of 10, 20, 30 and 50 ns are obtained. Compared with the results corresponding to the gating time of 12.50, 18.50, 28.75 ns and 48.6 ns, obtained with the high-voltage pulses method, the proposed method greatly improves the measuring accuracy. The method has great significance in calibrating the exposure time of the gated image intensifier and the ultra-high-speed photoelectronic framing camera.