Continuous or pixelated scintillators?, not longer a discussion

Gamma ray detectors merging continuous and pixelated crystal arrays are described. We show a pilot study about the detector performance of an innovative scintillation design that simultaneously uses both a continuous and a crystal array. This novel idea is the base of a high-resolution and high-sensitivity gamma ray detector. Alternatively monolithic or crystal arrays can be mounted on the front or in between this and the photosensor to improve spatial or photon depth of interaction resolution, without sensitivity detriment. We have successfully tested a total scintillation thickness of ∼20 mm.