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PET detector of composite crystal array and construction method thereof

A technology of composite crystals and crystal arrays, applied in the fields of electronic information and medical devices, can solve the problems of difficulty in reducing the cost of high-performance PET, low reserves of raw material lutetium, and high prices, and achieve the effects of beautiful appearance, reduced system complexity, and reasonable structure.

Active Publication Date: 2020-04-10
NANCHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-end medical equipment PET uses a large amount of heavy rare earth element lutetium, but the raw material lutetium reserves are small and the price is high, which makes it difficult to reduce the cost of high-performance PET

Method used

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  • PET detector of composite crystal array and construction method thereof
  • PET detector of composite crystal array and construction method thereof
  • PET detector of composite crystal array and construction method thereof

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Embodiment Construction

[0036] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that in the description of the present application, the terms "center", "length", "depth", "thickness", "upper", "lower", "front", "rear", "left", " The orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" etc. is based on the The orientation or positional relationship is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the application .

[0037]The present invention provides a composite crystal array PET detector, the structure of t...

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Abstract

The invention discloses a PET detector of a composite crystal array and a construction method thereof. The PET detector comprises a scintillation crystal module, a photoelectric conversion device module and a detector electronics module. The scintillation crystal module is used for converting gamma photons into visible light and soft ultraviolet photons and transmitting the visible light and softultraviolet photons to the photoelectric conversion device module; and the scintillation crystal module is an AB type mixed light and heavy rare earth single crystal array composed of a crystal moduleA and a crystal module B; wherein the crystal module A is a light rare earth single crystal and the crystal module B is a heavy rare earth single crystal; and A and B form a crystal array using a structure of a partition structure. The scintillation crystal array in the PET detector is composed of two mixed light and heavy rare earth crystals A and B; on the premise that the high performance of the PET detector is guaranteed, the lutetium content in the PET detector is reduced, and the cost and system complexity of the PET detector are reduced.

Description

technical field [0001] The invention relates to the technical fields of electronic information and medical equipment, in particular to a composite crystal array PET detector and a construction method thereof. Background technique [0002] Positron emission tomography (Positron Emission Tomography, PET) is a non-invasive intravital imaging method, which can non-invasively, quantitatively and dynamically evaluate the metabolic level, biochemical reaction, functional activity and perfusion of various organs in the human body. The cutting-edge technology in the current medical imaging field is the most sensitive clinical functional imaging device. The detector is the main part of the whole PET. The detector is composed of scintillation crystal, photoelectric conversion device and readout electronics. The performance of the scintillation crystal determines the performance of the detector. The scintillation crystal detector is the core of the system. An ideal crystalline material...

Claims

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Application Information

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IPC IPC(8): A61B6/00A61B6/03
CPCA61B6/037A61B6/4208A61B6/4266A61B6/52
Inventor 邓贞宙周凯徐思康邓宏晟陈冠东
Owner NANCHANG UNIV
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