Fig. 1. Structural schematic of the depth-of-interaction detector structure

Fig. 2. Structural diagram of the depth-of-interaction detector structure

Fig. 3. Schematic of the n/γ ray discrimination experimental setup

Fig. 4. Snapshot of experimental setup for the relative detection efficiency and position resolution tests

Fig. 5. PSD distribution under different short gate times (a, b) and PSD-channel scatterplot under a short gate time of 500 ns (c)

Fig. 6. Relative detection efficiency at different incident positions

Fig. 7. Amplitude ratio of two sides and time of hotspot map of TOF difference at different incident positions

Fig. 8. Relationship between the amplitude ratio and time of flight difference of the signals from two ends

Fig. 9. Relationship between the amplitude ratio (a), TOF difference (b) and incident position

Fig. 10. Reconstructed position distribution at different incident positions