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Positron emission tomography photon detection device

A technology of positron emission and photon detection, applied in measuring devices, radiation measurement, X/γ/cosmic radiation measurement, etc., can solve problems such as poor time detection accuracy, improve TOF performance, reduce accumulation, and improve time The effect of precision

Active Publication Date: 2021-06-22
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology

[0006] The invention solves the problem of poor time detection accuracy of existing positron emission tomography photon detection devices

Method used

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  • Positron emission tomography photon detection device
  • Positron emission tomography photon detection device
  • Positron emission tomography photon detection device

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Embodiment Construction

[0022] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] figure 1 is a schematic diagram of the structure of a photon detection device for positron emission tomography, described as an illustrative example. In positron emission tomography (PET), a radiopharmaceutical is injected into an imaged subject, and its radioactive decay events generate positrons. Each positron interacts with an electron to produce two oppositely directed gamma (γ) photons. The gamma photons are detected by the detection device and checked by the system, and the response lines are counted to reconstruct the image. The photon detection device for positron emission tomography proposed by the present invention includes a detection array composed of a plurality of detection units 100 . Such as figure 1 As shown,...

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Abstract

The invention discloses a photon detection device for positron emission tomography, which comprises a detection array composed of a plurality of detection units, the detection unit includes at least one scintillator device, and at least one photoelectric conversion device is coupled to each of the scintillation devices. Each of the photoelectric conversion devices is respectively connected with an energy signal readout circuit and a time signal readout circuit for detecting events. The photon detection device provided by the invention has the advantages of better time detection accuracy and lower cost.

Description

【Technical field】 [0001] The invention relates to the technical field of positron emission tomography, in particular to a photon detection device for positron emission tomography. 【Background technique】 [0002] With the development of PET (Positron Emission Tomography, Positron Emission Tomography) imaging technology, PET scanning equipment has been widely used in the medical field. PET scanning equipment is an advanced medical diagnostic imaging equipment, which has become an indispensable important equipment in the diagnosis and pathological research of tumors, heart and brain diseases. In a PET scan, the patient is first injected with radiopharmaceuticals, which are tracers synthesized from radionuclides and compounds needed for the body's metabolism, such as glucose, choline, acetic acid, etc. , and release positrons and neutrinos. The mass of a positron is equal to that of an electron, and the charge of a positron is the same as that of an electron, but with opposite...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/161
CPCA61B6/037G01T1/202G01T1/2985
Inventor 陆婷
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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