Fig. 1. Time structure of double proton beam pulse of CSNS

Fig. 2. Main driving modes for CCD

Fig. 3. Macro_structure of CCD driving electrode for interline mode

Fig. 4. Main time schedule design for double pulse exposure

Fig. 5. Production and transfers of signal charge packages in CCD

Fig. 6. Schematic of validation experiment system for double pulse high speed imaging

Fig. 7. Adjustment of time relationship between double pulse images

Fig. 8. Experimental results under different overlap time for double pulse high speed imaging

Fig. 9. Influence of overlap time of two pulses on image gray

Fig. 10. Difference between shutter controlled exposure mode and separated exposure mode