Patent ID: 7888647

Claim:
A computed tomography system for use with a target, the system comprising: an X-ray detector array having a plurality of scintillator assemblies and a plurality of photomultiplier assemblies, the X-ray detector array being operative to output signals corresponding to an amount of X-rays detected; each scintillator assembly having a scintillation component and an optical fiber, the scintillation component being operative to emit light responsive to X-rays being incident thereon, the optical fiber being positioned to receive light emitted from the scintillation components; each photomultiplier assembly having a plurality of photomultiplier tubes disposed with a housing having cavities extending therethrough, each photomultiplier tube being operative to output an electrical signal responsive to light propagated thereto by the optical fiber of a respective one of the scintillator assemblies, wherein each photomultiplier tube has a contact portion and a tube portion that is received at least partially within a corresponding one of the cavities, and wherein each of the photomultiplier tubes is replaceable.