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Reaction position positioning method and apparatus

A positioning method and reaction technology, which can be applied to measurement devices, instruments, scientific instruments, etc., can solve the problem that the position of gamma photon cannot be simply used to react

Active Publication Date: 2017-04-05
WUHAN ZHONGPAI TECH CO LTD
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Problems solved by technology

For this improved positron emission imaging device, it is impossible to simply use the traditional position calculation method to determine the reaction position of the gamma photon in the scintillation crystal

Method used

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  • Reaction position positioning method and apparatus
  • Reaction position positioning method and apparatus
  • Reaction position positioning method and apparatus

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Embodiment Construction

[0029] In the following description, numerous details are provided in order to provide a thorough understanding of the invention. However, it will be appreciated by those skilled in the art that the following description relates only to preferred embodiments of the invention and that the invention may be practiced without one or more of these details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0030] In order to solve the above problems, the present invention proposes a method for locating a reaction position. The method is applicable to an improved positron emission imaging device using an integrated scintillation crystal. The improved positron emission imaging device uses a scintillation crystal with an integrated structure and a photoelectric sensor array adapted to the scintillation crystal to form a detector, which can solve the problems caused by splicing detectors in traditional pos...

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Abstract

The invention provides a reaction position positioning method and apparatus. The method includes receiving the energy information of the visible photon coupled to a scintillation crystal, detected by at least one photoelectric sensor array, and generated by the reaction of the gamma photon with the scintillation crystal, wherein the scintillation crystal is an integrated scintillation crystal and has a through hole for receiving an object to be imaged, and the gamma photon is generated by the positron annihilation effect in the object to be imaged; and determining the reaction position of the gamma photon in the scintillation crystal according to the received energy information, wherein the reaction position is represented by a cylindrical coordinate system. According to the invention, by providing a way for positioning the reaction position of the gamma photon for a positron emission imaging apparatus with the integrated scintillation crystal, the problem that a conventional position calculation method is not suitable for the improved positron emission imaging apparatus can be solved.

Description

technical field [0001] The invention relates to the field of positron emission imaging, in particular to a reaction position positioning method and device. Background technique [0002] The full name of positron emission imaging is Positron Emission Computed Tomography (PET). The main means of clinical diagnosis. [0003] In traditional positron emission imaging equipment, a plurality of square detectors (including scintillation crystals, photoelectric sensors, etc.) are generally spliced ​​into a circular or approximately spherical detector system through a mechanical structure to detect gamma photons. Specifically, each scintillation crystal (or scintillation crystal array) of a traditional positron emission imaging device is coupled with a photosensor to form an independent detector, and multiple independent detectors are spliced ​​together through a complex mechanical structure to form a positron A detector system for an emission imaging device. Due to the assembly an...

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Application Information

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IPC IPC(8): G01T1/29
CPCG01T1/2985
Inventor 龚政谢思维黄秋赵指向翁凤花彭旗宇
Owner WUHAN ZHONGPAI TECH CO LTD
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