Multilayer scintillation crystal and PET prober
A scintillation crystal and detector technology, applied in the field of positron emission tomography imaging equipment, can solve the problems of time-consuming and labor-intensive acquisition of reference data, and the inability of mass production of detectors
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Embodiment 1
[0043] Such as figure 1 As shown, the PET detector includes a multilayer scintillation crystal 1 , a photodetector system 2 and an algorithm system 3 . Among them, the multi-layer scintillation crystal 1 is composed of two layers of scintillation crystals, the top layer of scintillation crystal 4 is an array scintillation crystal, and the bottom layer of scintillation crystal 5 is a continuous scintillation crystal; the connected surfaces of the two layers of scintillation crystals are coupled together by optical glue. The scintillation crystal 4 on the top layer is in the shape of a cube, which is composed of 6×6 scintillation crystal strips of the same size spliced on the horizontal plane. The bottom surface of the underlying scintillation crystal 5 is directly coupled with the photodetector system 2 . The photodetector system 2 is composed of 4×4 SiPMs. The scintillation crystal 5 on the bottom layer has a height of 1 mm, and the scintillation crystal 4 on the top layer...
Embodiment 2
[0045] Such as figure 2 As shown, the PET detector includes a multilayer scintillation crystal 1, a photodetector system 2 and an algorithm system 3, wherein the multilayer scintillation crystal 1 is composed of two layers of scintillation crystals, the top layer scintillation crystal 4 is an array scintillation crystal, and the bottom layer scintillation crystal 5 It is a continuous scintillation crystal; the connected surfaces of two layers of scintillation crystals are coupled together by optical glue and have exactly the same shape and size. The scintillation crystal 4 on the top layer is in the shape of a cube, which is composed of 6×6 scintillation crystal strips of the same size spliced on the horizontal plane. The bottom surface of the underlying scintillation crystal 5 is coupled with the photodetector system 2 through the light guide 6 . The photodetector system 2 is composed of 4×4 SiPMs. The scintillation crystal 5 on the bottom layer has a height of 1 mm, and...
Embodiment 3
[0047] Such as image 3 As shown, the PET detector includes a multilayer scintillation crystal 1, a photodetector system 2 and an algorithm system 3, wherein the multilayer scintillation crystal 1 is composed of two layers of scintillation crystals, the top layer scintillation crystal 4 is an array scintillation crystal, and the bottom layer scintillation crystal 5 It is a continuous scintillation crystal; the connected surfaces of two layers of scintillation crystals are coupled together by optical glue. The appearance shape of the scintillation crystals 4 on the top layer is a truncated cone. The top surface and the bottom surface of the array scintillation crystals are parallel to each other, and are composed of 4×4 scintillation crystal strips spliced on the horizontal plane. The bottom surface of the underlying scintillation crystal 5 is coupled with the photodetector system 2 through optical glue. The scintillation crystal 5 on the bottom layer has a height of 1 mm, a...
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