Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Positron emission tomography detector for multilayer scintillation crystal

A technology of positron emission and scintillation crystals, which is applied in the field of detector devices, can solve the problems that detectors cannot be mass-produced and reference data is time-consuming and labor-intensive, and achieve the effects of improving spatial resolution, improving imaging quality, and high detection efficiency

Active Publication Date: 2014-06-11
RAYCAN TECH CO LTD SU ZHOU
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The acquisition of reference data is time-consuming and laborious, which also determines that this kind of detector cannot be mass-produced, and it is difficult to apply it to the actual PET system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Positron emission tomography detector for multilayer scintillation crystal
  • Positron emission tomography detector for multilayer scintillation crystal
  • Positron emission tomography detector for multilayer scintillation crystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1 As shown, the multilayer scintillation crystal 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 scintil...

Embodiment 2

[0046] Such as figure 2 As shown, the multilayer scintillation crystal 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, and the top layer of scintillation crystals 4 is an array scintillation crystal, The scintillation crystals 5 at the bottom layer are continuous scintillation crystals; the connected surfaces of the 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...

Embodiment 3

[0048] Such as image 3As shown, the multilayer scintillation crystal 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, and the top layer of scintillation crystals 4 is an array scintillation crystal, The scintillation crystals 5 at the bottom layer are continuous scintillation crystals; the connected surfaces of the 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 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A multilayer scintillation crystal (1) comprises n layers of array scintillation crystals and m layers of continuous scintillation crystals which have uncut inner parts, both n and m being integers greater than or equal to 1 and a sum of n and m being smaller than or equal to 10. The array scintillation crystals are formed by arranging strip-type scintillation crystals along the width and length directions, the array scintillation crystals and the continuous scintillation crystals are sequentially coupled along the height direction of the strip-type scintillation crystals to form the multilayer scintillation crystal (1), and the continuous scintillation crystals are located at the bottom of the multilayer scintillation crystal (1). The adding of the continuous scintillation crystals between the array scintillation crystals and a photoelectric detector system (2) facilitates photon diffusion of a scintillating light, and through optimization design of the thickness of the continuous scintillation crystals, the distribution of the scintillating light received by the photoelectric detector carries more abundant energy deposition information. More accurate energy deposition information of gamma photons in the scintillation crystal can be obtained through full utilization of the abundant energy deposition information by using a corresponding information extraction algorithm.

Description

technical field [0001] The invention relates to the field of positron emission tomography equipment, in particular to a detector device in the positron emission tomography equipment. Background technique [0002] The Positron Emission Tomography (PET) detector is the key device in the PET imaging equipment, and its main function is to obtain the position, time and energy information of each gamma photon energy deposition in the PET event. In the process of designing and implementing a PET imaging system, in order to improve the imaging performance of the system, it is hoped that the positron emission tomography detector used can provide deposition depth (Depth of Interaction, DOI) information, have high detection efficiency, good Temporal resolution as well as good spatial resolution. [0003] In existing positron emission tomography detectors, the scintillation crystal part is usually a single-layer array scintillation crystal or continuous scintillation crystal. For posi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/29
CPCG01T1/1644A61B6/4258A61B6/00G01T1/1642G01T1/202G01T1/2985G01T1/2002G01T1/20G01T3/06
Inventor 谢庆国奚道明朱俊王璐瑶
Owner RAYCAN TECH CO LTD SU ZHOU
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com