CN109924995A - Both-end reads detector cells and both-end reads detector - Google Patents
Both-end reads detector cells and both-end reads detector Download PDFInfo
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- CN109924995A CN109924995A CN201711349132.5A CN201711349132A CN109924995A CN 109924995 A CN109924995 A CN 109924995A CN 201711349132 A CN201711349132 A CN 201711349132A CN 109924995 A CN109924995 A CN 109924995A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The present invention is suitable for field of medical device, it discloses both-end and reads detector cells and both-end reading detector, wherein, it includes the first fixture that both-end, which reads detector cells, it is installed on the second fixture of the first fixture side, it is installed on the third fixture of the first fixture other side, the scintillation crystal being installed on the first fixture, it is installed on the second fixture and the first photoelectric detector coupled with scintillation crystal one end and the second photoelectric detector for being installed on third fixture and being coupled with the scintillation crystal other end, first fixture is equipped with snorkel and is connected to snorkel and both ends are respectively facing the venthole of the second fixture Yu third fixture, snorkel is located at the end of the first fixture.The present invention effectively increases the heat dissipation effect that both-end reads detector cells and both-end reads detector, and the beneficial effect that its is compact-sized, small in size, assembly operation is simple, assembling difficulty is small by the way that snorkel and venthole are arranged on the first fixture.
Description
Technical field
Detector cells, which are read, the present invention relates to field of medical device more particularly to both-end and there is the both-end to read visits
The both-end for surveying device unit reads detector.
Background technique
In recent years, PET (Positron Emission Tomography, i.e. positron emission tomography) detector
Development is more and more rapider, and technology has put goods on the market extensively also gradually in maturation.Currently, the PTE detector of mainstream is all to use
The detector of single-ended reading, detector cells are to be coupled by scintillation crystal with the photodetector for being located at scintillation crystal one end
Assembling is formed.The advantages of this single-ended reading detector cells is scintillation crystal to be easy to couple with optical detector, scintillation crystal it
Between spacing very little, can accomplish to be seamlessly connected, so that the structure of whole system is very compact, but the disadvantage is that lack DOI
(depth of interaction, i.e. depth of interaction) information, image quality be not high, has seriously affected PET system image quality
Promotion.
In order to solve the problems, such as above-mentioned single-ended reading detector, in the prior art, it is double that part research staff proposes design
End reads the scheme of detector, although improving the image quality of PET system to a certain extent, since it is specific
The problems such as that there are volumes in is big, heat dissipation effect is poor, assembly operation is cumbersome, assembling difficulty is big, therefore, cause it not obtain
Large-scale popularization application.
Summary of the invention
The first purpose of this invention is to provide a kind of both-end and reads detector cells, aims to solve the problem that existing both-end is read
Detector is since volume is big, heat dissipation effect is poor, assembly operation is cumbersome, assembling difficulty is greatly without obtaining large-scale popularization application out
Technical problem.
In order to achieve the above objectives, scheme provided by the invention is: both-end reads detector cells, including the first fixture, peace
The second fixture loaded on first fixture side, the third fixture for being installed on first fixture other side, be installed on it is described
Scintillation crystal on first fixture, the first photoelectricity for being installed on second fixture and coupling with described scintillation crystal one end are visited
The second photoelectric detector for surveying device and being installed on the third fixture and being coupled with the scintillation crystal other end, it is described
First fixture is equipped with snorkel and is connected to the snorkel and both ends are respectively facing second fixture and the third fixture
Venthole, the snorkel is located at the end of first fixture.
Optionally, first fixture includes chuck body, two pedestals for being convexly equipped in the chuck body both ends respectively
From the chuck body both sides of the edge, reversely outwardly extending extension plate, the scintillation crystal are installed on the folder respectively with two pieces
Have on ontology, the snorkel and the venthole are all set in the chuck body, second fixture and two pedestals
Connection, the third fixture are connect with the two extension plates.
Optionally, the chuck body is equipped with the mounting hole between the two extension plates, and the scintillation crystal is embedding
Enter and be installed in the mounting hole, the venthole is between the mounting hole and the connecting plate.
Optionally, the mounting hole is equipped with multiple, and multiple mounting holes are successively spaced apart along straight path in institute
It states between the both ends of chuck body；And/or
The venthole is equipped with multiple, and multiple ventholes are divided into two lines and are respectively arranged on the two sides of the mounting hole,
The snorkel is equipped with two, and two are additionally provided in the chuck body and is respectively communicated with described in two snorkels and two rows and is led to
The venting cavity of stomata.
Optionally, the pedestal is equipped with the first connecting hole for connecting with second fixture；And/or
The extension plate is equipped with the second connecting hole for connecting with the third fixture；And/or
At least one end of the chuck body is also convexly equipped with link block, and the link block is equipped with for connecting with end cap
Third connecting hole.
Optionally, first photoelectric detector including the first sensitive detection parts ontology and is set to first sensitive detection parts
First winding displacement of ontology one end, second fixture are equipped with the first card slot for the first sensitive detection parts ontology insertion positioning
With the first escape groove for avoiding first winding displacement.
Optionally, first card slot be equipped with it is multiple, multiple first card slots be successively spaced apart along straight path in
Between the both ends of second fixture；
At least two the 4th connecting holes for connecting with first fixture is additionally provided on second fixture, it is each described
4th connecting hole is divided into two column distributions and is arranged respectively close to the both ends of second fixture, and first card slot is located at two column institutes
It states between the 4th connecting hole；And/or
First escape groove is set on second fixture side and through the U-type groove at second fixture both ends.
Optionally, second photoelectric detector including the second sensitive detection parts ontology and is set to second sensitive detection parts
Second winding displacement of ontology one end, the third fixture are equipped with the second card slot for the second sensitive detection parts ontology insertion positioning
With the second escape groove for avoiding second winding displacement.
Optionally, second card slot be equipped with it is multiple, multiple second card slots be successively spaced apart along straight path in
Between the both ends of the third fixture；
It is additionally provided with two rows on the third fixture and is located at second card slot two sides to be used for and first fixture
5th connecting hole of connection；And/or
Second escape groove is set on the third clamp ends and the rectangular channel that is connected to second card slot.
Second object of the present invention is to provide a kind of both-end reading detector comprising end cap and multiple above-mentioned pairs
End reads detector cells, and multiple both-ends read detector cells and circumferentially surround distribution, and multiple both-ends are read
One end of detector cells is all connect with the end cap.
Both-end provided by the invention reads detector cells and both-end reads detector, is flashed by the first fixture clamping brilliant
Body, by second the first photoelectric detector of fixture clamping, by third fixture the second photoelectric detector of clamping, and by second
Fixture and third fixture are respectively arranged in the two sides of the first fixture so that the first photoelectric detector and the second photoelectric detector
The both ends of scintillation crystal are located at, to realize the both-end reading that both-end reads detector cells and both-end reads detector
Function, and then be conducive to improve image quality.Meanwhile the present invention on the first fixture by being arranged snorkel and venthole, ventilation
Pipe is set to the end of the first fixture, and venthole is connected to snorkel and both ends are respectively facing the second fixture and third fixture, in this way,
By the ventilation characteristic of snorkel and venthole, dramatically improves both-end and read detector cells and both-end reading detection
The heat dissipation effect of device.Further, since the setting of snorkel and venthole will not influence the second fixture, third fixture and the first fixture
Installation, therefore, so that both-end of the invention reads detector cells and both-end reads detector compared with the existing technology, there is knot
The beneficial effect that structure is compact, small in size, good heat dissipation effect, assembly operation is simple, assembling difficulty is small.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the three-dimensional assembling schematic diagram that both-end provided in an embodiment of the present invention reads detector cells；
Fig. 2 is the stereoscopic schematic diagram of the first fixture provided in an embodiment of the present invention；
Fig. 3 is the schematic top plan view of the first fixture provided in an embodiment of the present invention；
Fig. 4 is the assembling schematic diagram of the second fixture and the first photoelectric detector provided in an embodiment of the present invention；
Fig. 5 is the decomposition diagram of the second fixture provided in an embodiment of the present invention and first photoelectric detector；
Fig. 6 is the assembling schematic diagram of third fixture and the second photoelectric detector provided in an embodiment of the present invention；
Fig. 7 is the decomposition diagram of third fixture provided in an embodiment of the present invention and second photoelectric detector；
Fig. 8 is the three-dimensional assembling schematic diagram that both-end provided in an embodiment of the present invention reads detector.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
It should also be noted that, when an element is referred to as being " fixed " or " disposed " on another element, it can be straight
Connect on the other element or may be simultaneously present centering elements.When an element is known as " connection " another element,
It, which can be, is directly connected to another element or may be simultaneously present centering elements.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
As shown in figures 1-8, both-end provided in an embodiment of the present invention reads detector cells 100, including the first fixture 1, peace
The second fixture 2 loaded on 1 side of the first fixture, is installed on the first fixture 1 at the third fixture 3 for being installed on 1 other side of the first fixture
On scintillation crystal 4, the first photoelectric detector 5 for being installed on the second fixture 2 and being coupled with 4 one end of scintillation crystal and installation
In the second photoelectric detector 6 coupled on third fixture 3 and with 4 other end of scintillation crystal, the first fixture 1 is equipped with snorkel
It 111 and is connected to snorkel 111 and both ends are respectively facing the venthole 112 of the second fixture 2 with third fixture 3, snorkel 111
In the end of the first fixture 1.
In the embodiment of the present invention, scintillation crystal 4 is installed on the first fixture 1, and the first photoelectric detector 5 passes through the second folder
Tool 2 is installed on the side of the first fixture 1 and couples with one end of scintillation crystal 4, and the first photoelectric detector 5 passes through the second fixture
2 are installed on the other side of the first fixture 1 and couple with the other end of scintillation crystal 4, to realize scintillation crystal 4, the first light
The installation of electric explorer part 5 and the second photoelectric detector 6 is fixed, and is realized both-end and read detector cells 100 and both-end
The both-end read out function of detector is read, and then is conducive to improve image quality.Meanwhile the embodiment of the present invention passes through in the first fixture
Snorkel 111 and venthole 112 are set on 1, and snorkel 111 is set to the end of the first fixture 1, venthole 112 and snorkel 111
Connection and both ends are respectively facing the second fixture 2 and third fixture 3, in this way, may make air-flow by scintillation crystal 4 and to both sides
First photoelectric detector 5 and the second photoelectric detector 6 are blown, so that effectively increasing both-end reads detector cells 100
The heat dissipation effect of detector is read with both-end.Further, since the setting of snorkel 111 and venthole 112 will not influence the second folder
The installation of tool 2, third fixture 3 and the first fixture 1, therefore, the both-end of the embodiment of the present invention, which reads detector cells 100, also has knot
The characteristic that structure is compact, small in size, good heat dissipation effect, assembly operation is simple, assembling difficulty is small.
Preferably, referring to Fig.1 shown in -3, the first fixture 1 includes chuck body 11, two and is convexly equipped in chuck body 11 respectively
From 11 both sides of the edge of chuck body, reversely outwardly extending extension plate 13, scintillation crystal 4 are pacified respectively for the pedestal 12 at both ends and two pieces
Loaded in chuck body 11, snorkel 111 and venthole 112 are all set in chuck body 11, and the second fixture 2 and two pedestals 12 connect
It connects, third fixture 3 is connect with two extension plates 13.On the one hand the setting of chuck body 11 is pressed from both sides for realizing scintillation crystal 4 and first
The assembly of tool 1, on the other hand for realizing the setting of radiator structure.The setting of pedestal 12, be mainly used for realizing the second fixture 2 with
The assembly of first fixture 1.The setting of extension plate 13 is mainly used for realizing the assembly of third fixture 3 and the first fixture 1.Herein, by
It is located at the both ends of chuck body 11 in the pedestal 12 on the first fixture 1 for connecting with the second fixture 2, is used for and third fixture 3
The extension plate 13 of connection is located at the both sides of the edge of chuck body 11, therefore, the knot on the first fixture 1 for being connect with the second fixture 2
Structure, the structure for connecting with third fixture 3 and the structure for heat dissipation are offset from each other setting, in this way, can sufficiently protect
Under the premise of demonstrate,proving both-end reading 100 heat dissipation performance of detector cells, the structure that both-end reads detector cells 100 is effectively increased
Compactedness.
Specifically, chuck body 11 has oppositely arranged first end and the second end and the first oppositely arranged side
Portion and the second side, the both ends of the first side extend respectively to first end and the second end, and the both ends of the second side are prolonged respectively
Extend to first end and the second end.Two pedestals 12 extend from the bottom end of first end and the bottom end of the second end convex respectively
If the top of the top from the first side and the second side reversely extends outwardly two extension plates 13 respectively.
Preferably, referring to Fig.1 shown in -3, chuck body 11 is equipped with the mounting hole 113 between two extension plates 13, dodges
The bright insertion of crystal 4 is installed in mounting hole 113, and venthole 112 is between mounting hole 113 and connecting plate.Specifically, mounting hole
113 and venthole 112 be all located between two connecting plates, and venthole 112 is between mounting hole 113 and connecting plate.
Preferably, mounting hole 113 is equipped with multiple, and multiple mounting holes 113 are successively spaced apart along straight path in fixture
Between the both ends of ontology 11.The outer contoured shape of chuck body 11 is generally rectangular shaped.Multiple mounting holes 113 are along chuck body
11 length direction is successively spaced setting.Herein, the quantity of mounting hole 113 is equipped with multiple, so that the first fixture 1 can be used for
The multiple scintillation crystals 4 of clamping, to be conducive to read while realizing multiple groups detection data；It of courses, in concrete application, mounting hole
113 quantity is also not necessarily intended to be arranged multiple, such as can also be provided only with one or two.
As a preferred embodiment of the present embodiment, there are four mounting hole 113 is set；It of courses, in concrete application, installation
The quantity in hole 113 is without being limited thereto.
Preferably, the shape of scintillation crystal 4 and mounting hole 113 is all in rectangle.
Preferably, venthole 112 is equipped with multiple, and multiple ventholes 112 are divided into two lines and are respectively arranged on the two of mounting hole 113
Side, snorkel 111 are equipped with two, are additionally provided with two in chuck body 11 and are respectively communicated with two snorkels 111 and two row ventholes
112 venting cavity, i.e. a venting cavity are connected to a snorkel 111 and a line venthole 112, and the connection of another venting cavity is another
Root snorkel 111 and another row venthole 112.Two snorkels 111 and two venting cavities, two row ventholes 112 can form two
Thermal dissipating path, the air flow direction principle of two thermal dissipating paths be it is identical, herein, wherein to carry out for thermal dissipating path all the way
Illustrate the air flow direction principle of thermal dissipating path: air-flow enters out of a snorkel 111 in the venting cavity communicated therewith, then flows
To the venthole 112 being connected to the venting cavity, last air-flow flows to the second fixture 2 and third from the both ends of venthole 112 respectively
Fixture 3.
Preferably, venthole 112 is slot, and herein, venthole 112 is longer and narrower, is both conducive to guarantee venthole 112
Ventilatory capacity, and be conducive to guarantee chuck body 11 width dimensions it is smaller, thus be conducive to reduce chuck body 11 figure.
Preferably, the second fixture 2 connects pedestal 12 by the first fastener, and the first fastener is preferably screw, dismounting
Conveniently, convenient for repair and maintenance in the future.
Preferably, referring to Fig.1 shown in -5, pedestal 12 is equipped with the first connecting hole 121 for connecting with the second fixture 2.
Second fixture 2 is equipped with the 4th connecting hole 23 for connecting with the first fixture 1.When specific assembly, the first fastener wears company
The first connecting hole 121 and the 4th connecting hole 23 are connect, to realize the connection of the first fixture 1 and the second fixture 2.
Preferably, third fixture 3 connects pedestal 12 by the second fastener, and the second fastener is preferably screw, dismounting
Conveniently, convenient for repair and maintenance in the future.
Preferably, referring to Fig.1-3 and Fig. 6, Fig. 7 shown in, extension plate 13 be equipped with for being connect with third fixture 3 second
Connecting hole 131.Third fixture 3 is equipped with the 5th connecting hole 33 for connecting with the first fixture 1.When specific assembly, second is tight
Firmware wears the second connecting hole 131 of connection and the 5th connecting hole 33, to realize the connection of the first fixture 1 and third fixture 3.
Preferably, referring to Fig.1 shown in -3 and Fig. 8, at least one end of chuck body 11 is also convexly equipped with link block 14, connection
Block 14 is equipped with the third connecting hole 141 for connecting with end cap 200.Link block 14 passes through third fastener connection end cap 200,
Third fastener is preferably screw, convenient for disassembly and assembly, convenient for repair and maintenance in the future.
Preferably, two snorkels 111 are respectively arranged on the two sides of link block 14.
Preferably, referring to Fig.1, Fig. 4 and with shown in 5, the first photoelectric detector 5 include 51 He of the first sensitive detection parts ontology
The first winding displacement 52 set on 51 one end of the first sensitive detection parts ontology, the second fixture 2 are equipped with embedding for the first sensitive detection parts ontology 51
Enter the first card slot 21 of positioning and the first escape groove 22 for avoiding the first winding displacement 52.When specific installation, the first sensitive detection parts
The insertion of ontology 51 is positioned in the first card slot 21, and the first winding displacement 52 is pierced by outside the second fixture 2 from the first escape groove 22.
Preferably, the first card slot 21 is equipped with multiple, and multiple first card slots 21 are successively spaced apart along straight path in second
Between the both ends of fixture 2.The outer contoured shape of second fixture 2 is generally rectangular shaped.Multiple first card slots 21 are along the second fixture 2
Length direction be successively spaced setting.Herein, the quantity of the first card slot 21 is equipped with multiple, so that the second fixture 2 can be used for
Multiple first photoelectric detectors 5 of clamping, to be conducive to read while realizing multiple groups detection data；It of courses, concrete application
In, the quantity of the first card slot 21 is also not necessarily intended to be arranged multiple, such as can also be provided only with one or two.
As a preferred embodiment of the present embodiment, there are four the first card slot 21 is set；It of courses, in concrete application, the
The quantity of one card slot 21 is without being limited thereto.
Preferably, the quantity that the second fixture 2 is equipped with the 4th connecting hole 23 for connecting with the first fixture 1 is at least two
A, each 4th connecting hole 23 is divided into two column distributions and is arranged respectively close to the both ends of the second fixture 2, and the first card slot 21 is located at two column
Between 4th connecting hole 23, i.e., each 4th connecting hole 23 is distributed in the two sides of the first card slot 21 along the length direction of the second fixture 2.
Herein, it is optimized by the distributing position to the 4th connecting hole 23 and the first card slot 21 on the second fixture 2, in this way, both
Conducive to the connection for realizing the second fixture 2 and the first fixture 1, and it is conducive to dress of first photoelectric detector 5 on the second fixture 2
Folder, it is compact-sized.
As a preferred embodiment of the present embodiment, there are four the 4th connecting hole 23 is set, and four the 4th connecting holes 23
The both ends for being divided into two column respectively close to the second fixture 2 are arranged.It of courses, in concrete application, the quantity of the 4th connecting hole 23 is unlimited
In this.
Preferably, the first escape groove 22 is set on 2 side of the second fixture and through the U-type groove at 2 both ends of the second fixture.First
Escape groove 22 is set to the side back to the first fixture 1 of the second fixture 2.Herein, circumferential side is set by the first escape groove 22
The slot of opening, convenient processing and manufacture, and wearing convenient for the first winding displacement 52.
Preferably, referring to Fig.1, Fig. 6 and with shown in 7, the second photoelectric detector 6 include 61 He of the second sensitive detection parts ontology
The second winding displacement 62 set on 61 one end of the second sensitive detection parts ontology, third fixture 3 are equipped with embedding for the second sensitive detection parts ontology 61
Enter the second card slot 31 of positioning and the second escape groove 32 for avoiding the second winding displacement 62.When specific installation, the second sensitive detection parts
The insertion of ontology 61 is positioned in the second card slot 31, and the second winding displacement 62 is pierced by outside third fixture 3 from the second escape groove 32.
Preferably, the second card slot 31 is equipped with multiple, and multiple second card slots 31 are successively spaced apart along straight path in third
Between the both ends of fixture 3.The outer contoured shape of third fixture 3 is generally rectangular shaped.Multiple second card slots 31 are along third fixture 3
Length direction be successively spaced setting.Herein, the quantity of the second card slot 31 is equipped with multiple, so that third fixture 3 can be used for
Multiple second photoelectric detectors 6 of clamping, to be conducive to read while realizing multiple groups detection data；It of courses, concrete application
In, the quantity of the second card slot 31 is also not necessarily intended to be arranged multiple, such as can also be provided only with one or two.
As a preferred embodiment of the present embodiment, there are four the second card slot 31 is set；It of courses, in concrete application, the
The quantity of two draw-in groove 31 is without being limited thereto.
Preferably, the 5th connecting hole 33 that third fixture 3 is equipped with for connecting with the first fixture 1 is divided to be distributed in for two rows
The two sides of second card slot 31.The 5th connecting hole 33 of two rows is distributed in the two sides of third card slot along the width direction of third fixture 3.This
Place, is optimized by the distributing position to the 5th connecting hole 33 and the second card slot 31 on third fixture 3, in this way, both sharp
In the connection for realizing third fixture 3 and the first fixture 1, and it is conducive to clamping of second photoelectric detector 6 on third fixture 3,
Its is compact-sized.
Preferably, the second escape groove 32 is set on 3 end of third fixture and the rectangular channel that is connected to the second card slot 31.This
Place, sets circumferentially closed slot for the second escape groove 32, all relatively good to the positioning of the second winding displacement 62, protection effect.
Preferably, mounting hole 113, the first card slot 21, the second card slot 31, scintillation crystal 4,5 and of the first photoelectric detector
The quantity of second photoelectric detector 6 is all identical.
Preferably, scintillation crystal 4 is yttrium luetcium silicate crystal (LYSO).Yttrium luetcium silicate scintillation crystal 4 has High Light Output, fast
The characteristics such as decay of luminescence, effective atomic number are more, physico-chemical property is stable, do not deliquesce, is high-efficient to gamma-ray detection.It of courses,
In concrete application, scintillation crystal 4 can also be used other materials and be made, such as silicic acid lutetium (LSO), sodium iodide (NaI), lanthanum bromide
(LaBr3) etc..
Preferably, the first photoelectric detector 5 and the second photoelectric detector 6 are identical structure.
Preferably, the first photoelectric detector 5 and the second photoelectric detector 6 are all silicon photomultiplier (Silicon
Photomultiplier, abbreviation SiPM), it is forced down with high gain, high sensitivity, biased electrical, structure insensitive to magnetic field
The features such as compact.It of courses, in concrete application, the first photoelectric detector 5 and the second photoelectric detector 6 can also be used other
Instrument replaces, such as more pixel photon counters (Multi Pixel Photo Counter, abbreviation MPPC) or photomultiplier transit
Manage (Photomultiplier Tube, abbreviation PMT) or avalanche photodiode (Avalanche Photo Diode, abbreviation
APD) etc..
As a preferred embodiment of the present embodiment, both-end reads the assembling mode of detector cells 100 are as follows:
The installation of scintillation crystal 4 is positioned on the first fixture 1；
The installation of first photoelectric detector 5 is positioned on the second fixture 2, and the spy of the first photoelectricity will be equipped with by screw
The second fixture 2 for surveying device 5 is mounted on the side of the first fixture 1, so as to make one end of each scintillation crystal 4 respectively and respectively
The first sufficiently coupling of photoelectric detector 5, to realize that the installation of one end SiPM light-detecting device is fixed；
The installation of second photoelectric detector 6 is positioned on third fixture 3, and the spy of the second photoelectricity will be equipped with by screw
The third fixture 3 for surveying device 6 is mounted on the other side of the first fixture 1, so as to distinguish the other end of each scintillation crystal 4
It is sufficiently coupled with each second photoelectric detector 6, and then realizes that the installation of other end SiPM light-detecting device is fixed, in this way, i.e.
It completes both-end and reads the installations of detector cells 100 and fix, assembly operation is simple, conveniently, and accurate positioning.
Further, referring to shown in Fig. 8, the embodiment of the invention also provides both-ends to read detector comprising end cap 200
Detector cells 100 are read with multiple above-mentioned both-ends, multiple both-ends read detector cells 100 and circumferentially surround distribution, and
One end that multiple both-ends read detector cells 100 is all connect with end cap 200.End cap 200 is used to read multiple both-ends and detect
Device unit 100 is locked together, to be conducive to solve the problems, such as that both-end reading panel detector structure is not compact enough.The present embodiment
The both-end of offer reads detector, reads detector cells 100 due to using above-mentioned both-end, therefore, with it is compact-sized,
The feature that small in size, good heat dissipation effect, assembly operation are simple, assembling difficulty is small；Further, since it is that both-end reads detection data
, therefore it also has the characteristics that image quality is high.
Preferably, the circumferentially spaced mounting groove for being caught in positioning for each link block 14 respectively equipped with several of end cap 200
201, the bottom of each mounting groove 201 is designed with the 6th connecting hole.The quantity of mounting groove 201 and both-end, which are read, on end cap 200 detects
The quantity of device unit 100 is identical, and the link block 14 that each both-end reads detector cells 100 inserts in each installation of end cap 200 respectively
It is locked in slot 201 and by the 4th fastener.4th fastener is preferably screw.
Preferably, end cap 200 is circumferentially also equipped at intervals with the third escape groove 202 for avoiding snorkel 111, each to install
Slot 201 and the circumferentially alternating setting of each third escape groove 202, it is tighter that both-end obtained in this way reads detector overall structure
It gathers.
Preferably, both-end reads detector cells 100 and is equipped with 12, and 12 both-ends read 100 edge of detector cells
It is circumferentially sequentially connected around distribution, and 12 both-ends read detector cells 100 and are centrosymmetric distribution；It of courses, specifically
In, the quantity that both-end reads detector cells 100 is without being limited thereto.
Both-end provided in an embodiment of the present invention reads detector, is to be based on existing to SiPM photodetector and LYSO crystal
How to be fixed in system, one kind of proposition is compact-sized, can effective position and ventable heat dissipation the detection read for both-end
Device Design of Mechanical Structure scheme.
In PET system, is designed using the structure that both-end in the present embodiment is read, PET system may make to have into image quality
Measure high feature；Using the location structure in this implementation, can each scintillation crystal 4 of effective position specific location, will not be to being
System imaging belt carrys out physical deflections；Using the ventilation radiator structure in the present embodiment, the heat that can effectively generate with walking system makes
System is rapidly reached thermal balance.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. both-end reads detector cells, which is characterized in that including the first fixture, be installed on the second of first fixture side
Fixture, the scintillation crystal being installed on first fixture, is installed on the third fixture for being installed on first fixture other side
The first photoelectric detector for coupling on second fixture and with described scintillation crystal one end and it is installed on the third fixture
The second photoelectric detector that is upper and couple with the scintillation crystal other end, first fixture equipped with snorkel and with it is described
Snorkel connection and both ends are respectively facing the venthole of second fixture Yu the third fixture, and the snorkel is located at described
The end of first fixture.
2. both-end as described in claim 1 reads detector cells, which is characterized in that first fixture includes fixture sheet
Body, two pedestals for being convexly equipped in the chuck body both ends respectively and two pieces respectively from the chuck body both sides of the edge reversely to
The extension plate of outer extension, the scintillation crystal are installed in the chuck body, and the snorkel and the venthole are all set to
In the chuck body, second fixture is connect with two pedestals, and the third fixture is connect with the two extension plates.
3. both-end as claimed in claim 2 reads detector cells, which is characterized in that the chuck body, which is equipped with, is located at two
Mounting hole between the extension plate, the scintillation crystal insertion are installed in the mounting hole, and the venthole is located at described
Between mounting hole and the connecting plate.
4. both-end as claimed in claim 3 reads detector cells, which is characterized in that the mounting hole is equipped with multiple and more
A mounting hole is successively spaced apart between the both ends of the chuck body along straight path；And/or
The venthole is equipped with multiple, and multiple ventholes are divided into two lines and are respectively arranged on the two sides of the mounting hole, described
Snorkel is equipped with two, is additionally provided with two in the chuck body and is respectively communicated with venthole described in two snorkels and two rows
Venting cavity.
5. both-end as claimed in claim 2 reads detector cells, which is characterized in that the pedestal be equipped with for it is described
First connecting hole of the second fixture connection；And/or
The extension plate is equipped with the second connecting hole for connecting with the third fixture；And/or
At least one end of the chuck body is also convexly equipped with link block, and the link block is equipped with for connecting with end cap
Three connecting holes.
6. as both-end described in any one of claim 1 to 5 reads detector cells, which is characterized in that first photoelectricity is visited
Surveying device includes the first sensitive detection parts ontology and the first winding displacement set on described first sensitive detection parts ontology one end, second folder
Tool, which is equipped with, is embedded in the first card slot positioned and first for avoiding first winding displacement for the first sensitive detection parts ontology
Escape groove.
7. both-end as claimed in claim 6 reads detector cells, which is characterized in that first card slot be equipped with it is multiple, it is more
A first card slot is successively spaced apart between the both ends of second fixture along straight path；
At least two are additionally provided on second fixture for the 4th connecting holes that connect with first fixture, each described 4th
Connecting hole is divided into two column distributions and is arranged respectively close to the both ends of second fixture, and first card slot is located at two column described the
Between four connecting holes；And/or
First escape groove is set on second fixture side and through the U-type groove at second fixture both ends.
8. as both-end described in any one of claim 1 to 5 reads detector cells, which is characterized in that second photoelectricity is visited
Surveying device includes the second sensitive detection parts ontology and the second winding displacement set on described second sensitive detection parts ontology one end, the third folder
Tool, which is equipped with, is embedded in the second card slot positioned and second for avoiding second winding displacement for the second sensitive detection parts ontology
Escape groove.
9. both-end as claimed in claim 8 reads detector cells, which is characterized in that second card slot be equipped with it is multiple, it is more
A second card slot is successively spaced apart between the both ends of the third fixture along straight path；
It is additionally provided with two rows on the third fixture and is located at second card slot two sides for connecting with first fixture
The 5th connecting hole；And/or
Second escape groove is set on the third clamp ends and the rectangular channel that is connected to second card slot.
10. both-end reads detector, which is characterized in that including end cap and multiple both-ends as described in any one of claim 1 to 9
Detector cells are read, multiple both-ends read detector cells and circumferentially surround distribution, and multiple both-ends read and visit
The one end for surveying device unit is all connect with the end cap.
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| CN201711349132.5A CN109924995B (en) | 2017-12-15 | 2017-12-15 | Double-ended read-out detector unit and double-ended read-out detector |
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