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A detector for an emission imaging device

A technology of imaging equipment and detectors, applied in the field of detectors, to achieve accurate and orderly installation, and to achieve the effect of overall hermetic packaging

Active Publication Date: 2017-12-12
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a detector for emission imaging equipment, which solves the problem of accurate coupling and sealing packaging of the crystal array, photoconductive layer and photosensor array inside the detector existing in the prior art

Method used

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  • A detector for an emission imaging device
  • A detector for an emission imaging device
  • A detector for an emission imaging device

Examples

Experimental program
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Effect test

Embodiment 1

[0057] Such as figure 1 As shown, Embodiment 1 of the present invention includes a packaging box 10, a grid mold 20 and a light sensor assembly 50;

[0058] As shown in Figure 2 (a), Figure 2 (b), and Figure 2 (c), the packaging box 10 is a hollow box body, including a front side 11, a rear side 12, a left side 13, a right side 14 and Bottom surface 15, described front side 11, rear side 12 are vertically connected with bottom surface 15 respectively, the bottom edge of left side 13 and right side 14 is connected with bottom surface 15, front side 11, rear side 12, left side 13, right side The sides of the side surface 14 are sequentially connected to form a closed ring;

[0059] As shown in Figure 2(b) and Figure 2(c), the inner surface of the left side 13 is composed of a lower plane 13A, a middle plane 13B, an inclined plane 13C and an upper plane 13D sequentially spliced ​​from bottom to top. The plane 13A, the middle plane 13B and the upper plane 13D are parallel to eac...

Embodiment 2

[0080] Embodiment 2 of the present invention, its structure, composition are basically the same as Embodiment 1, the difference only lies in:

[0081] The left side 13 of the packaging box 10 has an angle α=30° between the slope 13B and the lower plane 13A;

[0082] The grid mold 20 is a vertical and horizontal grid composed of 19 vertical partitions 21 and 19 horizontal partitions 22 connected vertically, and the 19 longitudinal partitions 21 and 19 horizontal partitions 22 form 20 in the packaging box 10 ×20 grids, each grid is embedded with strip scintillation crystals 30, forming a 20×20 crystal array;

[0083] In this embodiment, the photosensor 51 is a silicon photomultiplier tube (SiPM) with a cylindrical shape, 3×3 in total, and the 3×3 photosensors are arranged close to each other to form a 3×3 photosensor array;

[0084] The shape of the mounting hole 52A of the positioning member 52 is adapted to the outer contour of the side surface of the 3×3 photosensor array; ...

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Abstract

The invention discloses a detector for transmission imaging equipment, belongs to a transmission imaging system, and achieves the accurate coupling and sealed packaging of a crystal array, a light conduction laye and a light sensor array in the detector in the prior art. The detector comprises a packaging box, a grid die, and a light sensor assembly, wherein the grid die is disposed at the bottom of the packaging box. The interior of the packaging box forms (N+1)*(N+1) grids, and the interior of each grid is provided with a strip-shaped scintillation crystal in an embedded manner, thereby forming an (N+1)*(N+1) crystal array. The interior of each grid is provided with light guide liquid, and then an end face of the crystal array is fixed through an end cover. The light sensor assembly is disposed in the packaging box. The detector guarantees the modularization of internal modules through a simple and feasible structure design, enables the internal modules to be installed in the packaging box accurately in an ordered manner, and effectively achieves the mutual coupling among all internal modules at ideal positions. The detector achieves the integrated sealing and packaging through internal and external sealing parts and sealing glue.

Description

technical field [0001] The invention belongs to an emission imaging system, in particular to a detector for emission imaging equipment. Background technique [0002] Emission imaging equipment has been used in scientific experiments and medical diagnosis, such as Positron Emission Tomography ("PET") is a representative product of international advanced medical equipment, widely used clinically in cardiovascular and cerebrovascular diseases and tumors, etc. Early diagnosis of major diseases, selection of treatment options, prediction of prognosis, evaluation of drug efficacy, etc. PET is currently the most effective imaging method for detecting early tumors, and is known as the "gold standard" for detecting human bodies at the molecular level. The key component of the emission imaging device is the detector for photon collection. The sensitivity and detection efficiency of the emission imaging device have a great relationship with the shape of the detector and the coupling m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/202
Inventor 许剑锋徐斌陈杰谢思维孙权权吴忠鼎
Owner HUAZHONG UNIV OF SCI & TECH
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