Fig. 1. Structural diagram of the cone antenna

Fig. 2. Schematic diagram of experiment overall layout

Fig. 3. Structural diagram of the target

Fig. 4. Time sequence diagnosis diagram of electromagnetic radiation. The inset is a enlarged drawing of the signal from -2 ns to 25 ns, 1, 3 and 4, respectively, represent the characteristic peaks of three time domain signals, 2 represents a jitter

Fig. 5. (a) Unsynchronized experiment diagram of backlight and main pulse, the upper picture shows the laser waveform, the middle picture shows the time domain signal of disk cone antenna, the bottom picture shows the X-ray radiant flow; (b) synchronized experiment diagram of backlight and main pulse, the upper picture shows the laser waveform, the bottom picture shows the time domain signal of disk cone antenna