Scintillation Crystal Detection Arrays for Radiation Imaging Devices

A Stanford researcher has developed two advanced approaches for the positron sensitive high-energy photon sensor technology for Positron Emission Tomography (PET). In the first approach, the radiation imaging device comprises layers of very thin position sensitive scintillation detectors that provide high scintillation light collection efficiency independent of interaction location, directly measured the interaction depth of the photons within thick detection volume, and 3D positional, energy, and temporal information for each interaction in multi-interaction photon events. The benefit of this improved device is that it simultaneously facilitates high spatial resolution, high 511 keV photon absorption efficiency, high scintillation light collection efficiency, and accurate photon interaction depth measurement without compromising performance parameters important for PET.