Light guides provide useful modes of light collection for scintillators. They convey scintillation photons to the photo-detectors. Key performance parameters are good optical transmission across a broad range of wavelengths and highly polished surfaces to promote total internal reflection.

A photomultiplier tube (PMT) is a type of vacuum tube detector used to amplify and detect very weak light signals. It is commonly used in various scientific, industrial, and medical applications where sensitivity to low light levels is crucial.

Silicon photomultipliers are solid-state single-photon-sensitive devices based on Single-photon avalanche diodes (SPAD) implemented on common silicon substrate. The dimension of each single SPAD can vary from 10 to 100 micrometres, with a density of up to 10,000 per square millimeter.

The EPSD-XY001GW plastic scintillator detector is mainly used for continuous monitoring of X-ray and gamma-ray radiation in the environment. The instrument probe uses a current integrator type plastic scintillator detector, which can be used for both general environmental monitoring and monitoring of pulsed radiation beams such as accelerators.