How Does Light Guide For Scintillator Array Work?

MaterialRefractive IndexTransmissionGeometriesK9 glass1.%(<10 mm thickness)Right cylinder, Tapered cone, OthersBorosilicate glass1.%(<6.5 mm thickness)Right cylinder, Tapered cone, OthersAcrylic plastic1.%(<8 mm thickness)Right cylinder, Tapered cone, Others

Working Principle

Scintillators generate scintillation photons when exposed to radiation (such as X-rays, gamma rays, etc.). Scintillator array light guides use the total reflection principle of light to collect these scintillation photons and guide them along a specific path to the photodetector. For example, the refractive index of the light guide material is usually designed to be higher than the surrounding medium, so that when light propagates inside the light guide, it is totally reflected at the interface between the light guide and the surrounding medium, thereby confining the light inside the light guide, reducing light scattering and loss, and achieving efficient light transmission.

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Features

High optical transmittance

Good light collection efficiency

Uniform light transmission

Low scattering characteristics

Link to EBO

Stable physical and chemical properties

Appropriate refractive index

Good mechanical properties

Time response characteristics