The waveform signals of sodium iodide-doped lithium-6 coupled photomultiplier tube at neutron energies of 2500 keV and 5000 keV.

The sampling rate is 1.25 g/s.In the experiment, the signal encoded as "1" corresponds to the neutron signal, while the signal encoded as "0" corresponds to the gamma signal. The H6410 photomultiplier tube was used as the photodetector, with a high voltage of -900 V applied. The particle source was a neutron beam from the Ionizing Radiation Primary Metrology Station of the China Institute of Atomic Energy, which is part of the National Defense Science and Technology Industry. The detector was positioned 79.7 cm away from the beam pipe exit.