Fig. 1. Schematic diagram of ERNI layout

Fig. 2. Structure diagram of the detectors

Fig. 3. Block diagram of the readout electronics

Fig. 4. Diagram of capacitive network

Fig. 5. Schematic diagram of preamplifier board's signal processing method

Fig. 6. Photograph of preamplifier board

Fig. 7. Photograph of digital readout board

Fig. 8. Processing procedure of single neutron event

Fig. 9. Waveform of test signal

Fig. 10. Result of time resolution test

Fig. 11. Integration nonlinearity of 32 channels

Fig. 12. Photograph of experimental on-site prototype testing at neutron beam line of CSNS

Fig. 13. Test result of position resolution