CN209400446U - A kind of scintillation crystal test device - Google Patents
A kind of scintillation crystal test device Download PDFInfo
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- CN209400446U CN209400446U CN201822169103.7U CN201822169103U CN209400446U CN 209400446 U CN209400446 U CN 209400446U CN 201822169103 U CN201822169103 U CN 201822169103U CN 209400446 U CN209400446 U CN 209400446U
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Abstract
A kind of scintillation crystal test device, including propulsive element, loading part, coupling unit and exploring block, the driver that propulsive element has push rod and connect with push rod；Loading part includes loading main body and crystal test cell, and crystal test cell, which is set to, to be loaded in main body；Coupling unit is cylindrical in shape, and the first coupling form is provided on coupling unit, and loading part is set to inside coupling unit, and propulsive element is fixed on one end of coupling unit, and push rod, which contradicts, loads main body；Exploring block includes electrooptical device and the electronics read-out device connecting with electrooptical device, exploring block is set to the other end of coupling unit, it is provided on exploring block and couples the matched second coupling form of form with first, the scintillation crystal in crystal test cell is coupled with electrooptical device.The utility model structure is simple, easy to operate, compact, use easy to carry.
Description
Technical field
The utility model relates to a kind of material properties test equipment, relate more specifically to a kind of scintillation crystal test device.
Background technique
When the effect by high energy particles such as gamma-rays, X-ray or atomic nucleus, scintillation crystal can generate flashing arteries and veins
Punching, converts lower energy photon for the high-energy photon in these high energy particles, thus the further light by coupling with scintillation crystal
Scintillation pulse is converted to electric signal by power conversion device.Scintillation crystal is in radiation detection technology, especially in positron emission
It is used widely in tomography technology (Positron Emission Tomography, hereinafter referred to as PET).Scintillation crystal
As the component of activity-sensing equipment front end, the overall performance of activity-sensing equipment is directly influenced.Therefore, as radiation is visited
The development of survey technology has gradually derived the dedicated test equipment of various scintillation crystals.With digitized sampling technology and number
Change gradualling mature for PET device, quantity, the scale of the scintillation crystal used are also increasing, and ten hundreds of scintillation crystals
It is required to guarantee stable, reliable performance, this is a kind of challenge for existing scintillation crystal test equipment.
Scintillation crystal test device in the prior art by by the sequentially rotation of the scintillation crystal in crystal load units with
Electrooptical device coupling can automatically control the switching of test scintillation crystal and the stepping coupling of electrooptical device, thus
Artificial replacement scintillation crystal and the by hand influence of the unstable factors such as coupling can be got rid of, more stable test is capable of providing
As a result, gradually having started the ability with automatic test, high-volume, the test of efficient crystal can be carried out.
However, measurement while in order to realize polycrystal, often volume is huge for scintillation crystal test device in the prior art
Greatly, structure is complicated, and component is more, thus is only applicable to fixed test.And in actual application, since digitlization PET is set
Standby popularizes, and the maintenance and maintenance for this large scale equipment also become more and more important, to crystal test device
Demand starts to turn to portable direction movement from large batch of automatic test.When needs are to the detector of digitlization PET device
It is a set of to be convenient for carrying and scintillation crystal test equipment that practicability is high can effectively solve the problem that mitigation when being overhauled and being safeguarded
The burden of maintenance personal provides reliability higher after-sales service service.
Further, since scintillation crystal test device in the prior art is conceived to changing for scintillation crystal fixation member mostly
Into, and have ignored the improvement in the coupled structure of scintillation crystal and electrooptical device.And portable crystal is tested and is filled
For setting, efficient and stable coupled modes are very important one aspect.Therefore, it is necessary to provide a kind of portable and can
Guarantee the scintillation crystal test device of efficient coupling.
Utility model content
The purpose of the utility model is to provide a kind of scintillation crystal test devices, to solve scintillation crystal in the prior art
Test device not Portable belt and cannot be guaranteed coupling effect the problem of.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of scintillation crystal test device,
The scintillation crystal test device includes propulsive element, loading part, coupling unit and exploring block, and the propulsive element has
Push rod and the driver being connect with the push rod；The loading part includes loading main body and crystal test cell, the crystal
Test cell is set in the loading main body；The coupling unit is cylindrical in shape, and the first coupling is provided on the coupling unit
Form, the loading part are set to inside the coupling unit, and the propulsive element is fixed on one end of the coupling unit,
The push rod contradicts the loading main body；The exploring block includes electrooptical device and connects with the electrooptical device
The electronics read-out device connect, the exploring block are set to the other end of the coupling unit, are arranged on the exploring block
Have and couples the matched second coupling form of form, scintillation crystal and the photoelectricity in the crystal test cell with described first
Switching device coupling.
One embodiment according to the present utility model, one end of the coupling unit are formed with screw thread, the propulsive element
Threaded cover shape is set in inside, the propulsive element is fixed with the coupling unit by screw thread couple.
One embodiment according to the present utility model, the push rod are set to the center of the propulsive element, the push rod
One end connect with the driver, the other end of the push rod is formed with promotion part.
One embodiment according to the present utility model, the driver are knob, are provided with and the rotation on the push rod
The matched screw thread of button.
One embodiment according to the present utility model, plane where promotion part perpendicular to the axis where the push rod,
The promotion part is formed as crux, circular plate type, triangle, polygon or irregular shape.
One embodiment according to the present utility model, is provided with the first buffer unit in the loading main body, and described first
Buffer unit is set to simultaneously on the outside of the crystal test cell.
One embodiment according to the present utility model, first buffer unit include more first springs and one first
Platform, first spring are arranged around the crystal test cell, and one end of first spring is set to the loading master
On body, the other end of first spring is connect with first platform, is provided on first platform and is surveyed with the crystal
Try matched first aperture of size of unit.
One embodiment according to the present utility model, it is described to load side opposite with the crystal test cell in main body
It is provided with the source of penetrating.
One embodiment according to the present utility model is provided with multiple sliding blocks, the coupling unit in the loading main body
Multiple guide-track grooves with sliding block cooperation are provided on inner wall, the sliding block is placed in the guide-track groove.
One embodiment according to the present utility model, the sliding block are set on the side for loading main body, the cunning
The extending direction of block is parallel with the length direction of the scintillation crystal.
One embodiment according to the present utility model, the crystal test cell have crystal set, and the crystal, which is put on, to be set
Multiple shrinkage pools are set, the scintillation crystal is installed in the shrinkage pool.
One embodiment according to the present utility model is provided with several docking on the outer wall of the other end of institute's coupling unit
Clamp is provided with several and the docking card slot for docking clamp cooperation on the inner wall of the exploring block.
One embodiment according to the present utility model is provided with the second buffer unit, institute on the electronics read-out device
It states the second buffer unit while being set on the outside of the electrooptical device.
One embodiment according to the present utility model, second buffer unit include more second springs and one second
Platform, the second spring are arranged around the electrooptical device, and one end of the second spring is set to the electronics
On read-out device, the other end of the second spring is connect with second platform, be provided on second platform with it is described
Matched second aperture of the size of electrooptical device.
One embodiment according to the present utility model is provided with display screen, the display on the outer wall of the exploring block
Screen is connect with the electronics read-out device.
One embodiment according to the present utility model, is provided with key on the outer wall of the exploring block, the key with
The electronics read-out device connection.
One embodiment according to the present utility model is provided on the outer wall of the electronics read-out device and to be arranged symmetrically
Fixed block, the fixed block are connect by third spring with the outer wall of the electronics read-out device.
One embodiment according to the present utility model, the propulsive element, the coupling unit and the exploring block
Outside be provided with anti-ionising radiation shell.
Scintillation crystal test device provided by the utility model, using the stepping knot of tubular docking structure and spiral rotating
Structure, so that the structure of the device is simple, it is easy to operate；Meanwhile the device volume is small and exquisite, machined material is lighter, portability
It is high；In addition, the device provides a dark condition, tubular knot using inscribed tubular structure for the test of scintillation crystal
The cavity of structure docking increases the stability of scintillation crystal and electrooptical device coupling, and test result reliability is high, while
It is integrated with preliminary test result display function in equipment, can be used for detection, the maintenance service of large-scale digital PET device.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments recorded in the utility model, for those of ordinary skill in the art, is not making the creative labor
Under the premise of property, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the perspective view of the explosion of the scintillation crystal test device of one embodiment according to the present utility model；
Fig. 2 is that propulsive element, loading part is shown according to the stereoscopic schematic diagram of the scintillation crystal test device of Fig. 1
The installation relation of part, coupling unit and exploring block；
Fig. 3 is the stereoscopic schematic diagram according to the propulsive element of the scintillation crystal test device of Fig. 1；
Fig. 4 is the stereoscopic schematic diagram according to the loading part of the scintillation crystal test device of Fig. 1；
Fig. 5 is the stereoscopic schematic diagram according to the coupling unit of the scintillation crystal test device of Fig. 1；
Fig. 6 is the stereoscopic schematic diagram according to the exploring block of the scintillation crystal test device of Fig. 1；
Fig. 7 is the stereoscopic schematic diagram according to the photoelectric detection unit of the exploring block of the scintillation crystal test device of Fig. 5；
Fig. 8 is the diagrammatic cross-section of scintillation crystal test device according to fig. 2；
Fig. 9 is the stereoscopic schematic diagram of the partial sectional of scintillation crystal test device according to fig. 2；
Figure 10 is that the signal of the scintillation crystal test device of one embodiment according to the present utility model is read and transmission is electric
The schematic diagram on road.
Specific embodiment
Below in conjunction with specific embodiment, the utility model is described further.It should be understood that following embodiment is only used for
The range that bright the utility model rather than limits the present invention.
It should be noted that it can directly set when component/part is referred to as on " setting exists " another component/part
It sets on another component/part or there may also be component/parts placed in the middle.When component/part is referred to as " connection/connection
Connect " to another component/part, it, which can be, is directly connected to/is attached to another component/part or may be simultaneously present residence
Middle component/part.Term as used herein " connection/connection " may include electrical and/or mechanical-physical connection/connection.This
Term "comprises/comprising" used in text refers to feature, step or the presence of component/part, but is not precluded one or more
Other feature, step or the presence of component/part or addition.Term as used herein "and/or" includes one or more phases
Close any and all combinations of listed item.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.Term used herein is intended merely to the purpose of description specific embodiment, and
It is not intended to limitation the application.
In addition, term " first ", " second " etc. are used for description purposes only pair similar with distinguishing in the description of the present application
As between the two and sequencing being not present, indication or suggestion relative importance can not be interpreted as.In addition, the application's
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
Fig. 1 is the perspective view of the explosion of the scintillation crystal test device of one embodiment according to the present utility model, and Fig. 2 is root
According to the stereoscopic schematic diagram of the scintillation crystal test device of Fig. 1, by Fig. 1 combination Fig. 2 it is found that scintillation crystal provided by the utility model
Test device includes: propulsive element 10, loading part 20, coupling unit 30 and exploring block 40, wherein is set on propulsive element 10
It is equipped with push rod and the promotion part being connected with push rod 15, loading in loading part 20 needs scintillation crystal to be tested, coupling part
There is part 30 first coupling unit 31 and the second coupling unit 32, loading part 20 to be placed in coupling unit 30, propulsive element
10 couple with the first coupling unit 31 so that promotion part 15 propelling loading component 20 can exist under the action of driver 16
30 internal motion of coupling unit, exploring block 40 are coupled with the second coupling unit 32 to match the survey of the scintillation crystal of different length
Examination demand.
More specifically, Fig. 3 is according to the stereoscopic schematic diagram of the propulsive element 10 of the scintillation crystal test device of Fig. 1, by Fig. 3
It is found that propulsive element 10 includes lid 12, push rod 14, promotion part 15 and driver 16, the main body of lid 12 is formed as cylinder
Shape is provided with screw thread on the inner wall of lid 12, and the first space 13, the extending direction and lid 12 of push rod 14 are formed inside lid 12
Central axial direction be overlapped, one end of push rod 14 from the first space 13 across lid 12 center and be fixed on lid 12
On, the other end of push rod 14 is provided with the promotion part 15 of cross form, and driver 16 connect with one end of push rod 14 and is to push away
Bar 14 provides power, and 12 inside bottom of lid is provided with washer 11 so that sealing uses.In the fig. 3 embodiment, driver 16
Specific implementation form be knob, which matches the movement to realize push rod 14 with the screw thread being set on push rod 14.
Fig. 4 as shown in Figure 4, is loaded according to the stereoscopic schematic diagram of the loading part 20 of the scintillation crystal test device of Fig. 1
Component 20 includes loading main body 21, sliding block 25, the first spring 28 and the first platform 26, wherein loads main body 21 and substantially forms
For rectangular shape, loads and be provided with recessed portion 22 on one of surface of main body 21, the recessed portion 22 is for loading crystal
Test cell 23 inlays several scintillation crystal items in crystal test cell 23.The shape and crystal test cell of recessed portion 22
23 shape matching, it is not limited here.Load another face opposite with recessed portion 22 of main body 21 or near zone setting
Penetrate source 24.It loads and is respectively arranged with sliding block 25 on four ribs that main body 21 is parallel to each other, sliding block 25 is formed as to far from loading
The column of the direction protrusion of main body 21, the central axis of stupefied extending direction and scintillation crystal item and lid 12 where sliding block 25
The extending direction of line is parallel.Several first springs 28 are arranged along the direction of the centerline axis parallel with lid 12, the first bullet
One end of spring 28 is fixed on loading main body 21 and is provided on the surface of recessed portion 22, the other end and the first platform of the first spring 28
26 is fixed.Plate with the first aperture 27 centered on first platform 26 is formed, the shapes and sizes and crystal of the first aperture 27
The shapes and sizes of test cell 23 match.
Further, in the fig. 4 embodiment, crystal test cell 23 includes crystal set in a rectangular parallelepiped shape, crystal set
It is set in recessed portion 22.Crystal set can be made of elastomer (such as sponge), can be by certain rule (ratio in crystal set
As matrix is distributed) more scintillation crystal items to be tested are inlayed, for example, each crystal, which is put on, inlays 5 × 5 scintillation crystal items.
Those skilled in the art should be noted that the quantity of crystal set and scintillation crystal item only as an example, not a limit, practical
In, the quantity of crystal set and scintillation crystal item can be according to requiring to be adjusted, and details are not described herein.Art technology
Personnel should also be noted that crystal set can be directly fixedly installed on and load in main body 21 without solid by recessed portion 22
Fixed, details are not described herein.
Fig. 5 as shown in Figure 5, is coupled according to the stereoscopic schematic diagram of the coupling unit 30 of the scintillation crystal test device of Fig. 1
The main body of component 30 is formed to have the cylinder of front end 31 and rear end 32.It is provided on front end 31 and matches with the inner wall of lid 12
Screw thread.It is provided with several docking clamps 36 on rear end 32, docks and is spaced on excircle of the clamp 36 along coupling unit 30
Distribution, the docking clamp 36 on same circumference are circumferentially uniformly distributed, the docking clamp 36 on different circumference correspond to each other and
With different grades of spacing, it is identical or not identical which, which can be set as needed,.First is additionally provided on rear end 32
Form 37 is coupled, the first coupling form 37 is formed as rectangle and penetrates from the outer wall inward wall of coupling unit 30, the first coupling
The length direction of form 37 and the direction of cylinder axis are parallel.Convex section 33, convex section are provided between front end 31 and rear end 32
33 are again formed as cylindrical shape；It is formed with multiple guide-track grooves 35 on the cylindric inner wall 34 of coupling unit 30, guide-track groove 35 is from front end
31 start along the direction parallel with cylinder axis 32 extension to the back-end, shape, quantity and the distribution of guide-track groove 35 and sliding block 25
Shape, quantity and distribution match, allow sliding block 25 is corresponding to be caught in guide-track groove 35 and move along guide-track groove 35.
Fig. 6 is according to the stereoscopic schematic diagram of the exploring block 40 of the scintillation crystal test device of Fig. 1, it will be appreciated from fig. 6 that detection
Component 40 includes probe portion main body 41, the docking coupling of card slot 43, second form 44, display screen 45 and key 46, wherein detection
Portion's main body 41 is formed as cylindric, and multiple docking card slots 43 are formed on the inner wall 42 of probe portion main body 41, docking card slot 43
Shape, quantity and distribution and the shape, quantity and distribution distribution matching for docking clamp 36, it may be assumed that docking card slot 43 is along probe portion
The circumferentially spaced about distribution of the inner wall of main body 41, the docking card slot 43 on same circumference is circumferentially uniformly distributed, on different circumference
Docking card slot 43 correspond to each other and there is different grades of spacing, which can be set as needed as identical or not phase
Together.Second coupling form 44 is set on the outer wall of probe portion main body 41, and the second coupling form 44 is formed as rectangle and visits certainly
The outer wall inward wall of survey portion main body 41 penetrates, and the second coupling form 44 couples form 37 with first and matches.Display screen 45 is embedded in
On the outer wall of probe portion main body 41, display screen 45 is formed as rectangle, display screen 45 and is set to inside probe portion main body 41
Master controller is connected to show test result.Key 46 is set on the outer wall of probe portion main body 46 and connects with master controller
It connects to control the parameter of test.
Fig. 7 be according to the stereoscopic schematic diagram of the photoelectric detection unit of the exploring block 40 of the scintillation crystal test device of Fig. 5,
As shown in Figure 7, exploring block 40 further includes photoelectric detection unit 50, and photoelectric detection unit 50 includes electrooptical device 52, electricity
Son learns read-out device 51 and fixed block 56, wherein electrooptical device 52 is fixedly connected with electronics read-out device 51, photoelectricity
Switching device 52 includes the electrooptical devices such as photomultiplier tube, silicon photomultiplier, and electronics read-out device 51 is close to photoelectricity
One end of switching device 52 is provided with the second platform 53, and the second platform 53 is fixed by several second springs 55, second spring
55 one end is fixed on the surface of electronics read-out device 51, and the other end of second spring 55 and the second platform 53 are fixed, the
Plate with the second aperture 54 centered on two platforms 53 are formed, the shapes and sizes and electrooptical device 52 of the second aperture 54
Shapes and sizes matching so that electrooptical device 52 is placed in the sky that the second platform 53 and second spring 55 are formed
In.Fixed block 56 is symmetrically set to the side of electronics read-out device 51 by third spring 57, so that photoelectricity is visited
When survey unit 50 is installed into 40 inside of exploring block, pass through the cooperation of 40 inner wall of fixed block 56, third spring and exploring block
Photoelectric detection unit 50 is closely fixed on inside exploring block 40.
Fig. 8 is the diagrammatic cross-section of scintillation crystal test device according to fig. 2, and Fig. 9 is scintillation crystal test according to fig. 2
The stereoscopic schematic diagram of the partial sectional of device, by Fig. 8, Fig. 9 combination the figures above it is found that the scintillation crystal test device is assembling
When, first need to scintillation crystal to be tested be installed in crystal set, then crystal set is installed in crystal test cell 23, it is brilliant
Body test cell 23 is installed in the recessed portion 22 of loading part 20；Secondly it is placed in the sliding block 25 of loading part 20 is corresponding
In the guide-track groove 35 of coupling unit 30；Then simultaneously propelling loading is contacted with loading part 20 with the promotion part 15 on propulsive element 10
Component 20 along guide-track groove 35 to 30 internal slide of coupling unit, the screw thread of 12 inner wall of lid of propulsive element 10 and front end at this time
Being threadedly engaged on 31 outer walls, so that propulsive element 10 is fixed on the front end 31 of coupling unit 30；Further, pass through driving
The rotation of device 16 pushes promotion part 15 to continue to move.On the other hand, photoelectric detection unit 50 is loaded into exploring block 40
Portion, while by the inside of the insertion of the rear end of coupling unit 30 32 exploring block 40, so that the docking clamp 36 being distributed on rear end 32
Correspondence is caught in the docking card slot 43 of 40 inner wall of exploring block.With the movement of promotion part 15,23 edge of crystal test cell is pushed
Guide-track groove 35 continue to move, after the first platform 26 and the second platform 53 contact, the first spring 28 and second spring 55 start
Compression, scintillation crystal continue on the first aperture 27 and the second aperture 54 and move to electrooptical device 52, at this time the first coupling
It closes form 37 and the second coupling form 44 is overlapped and can couple 44 weight of form by the first coupling form 37 and second
Whether partially observable scintillation crystal and photoelectricity the dress parallel operation part 52 closed is coupled, changes when observing that scintillation crystal is filled with photoelectricity
When device 52 has completed coupling, that is, stop the work of driver 16, coupling is completed, into test phase.
Figure 10 is that the signal of the scintillation crystal test device of one embodiment according to the present utility model is read and transmission is electric
The schematic diagram on road, when entering test phase, since the scintillation crystal of test is coupled with electrooptical device 52, photoelectric converter
Part 52 inputs electronics read-out device 51 after the lower energy photon being deposited in scintillation crystal is converted to electric signal,
Master controller 47 is the core that Back end data reads and transmits, and by the starting of key-press input control circuit, is stopped
With reset etc. operation.Position, energy and the time letter of signal single event are obtained by the computing unit of electronics read-out device 51
Master controller is ceased and is sent into, specifically, computing unit can sample electric signal using the multivoltage threshold value method of sampling,
Computing unit includes amplifier, analog-digital converter (ADC), comparator and fpga chip, and electric signal is after amplifier amplifies
Into analog-digital converter, analog-digital converter carries out digitized sampling to the angle signal in electric signal, then defeated by LVDS interface
Enter in fpga chip, fpga chip calculates the energy of each road electric signal according to angle signal data by digital integration, then leads to
Cross energy information and location information that cumulative and gravity model appoach calculates electric signal；Electric signal is sent to comparator, comparator simultaneously
Electric signal is compared with fpga chip by the preset threshold value of voltage threshold control module, to obtain the more of electric signal
A threshold information；Master is responsible for various clock signals needed for providing whole system work, and fpga chip is according to default
The arrival time of each road logical pulse of threshold triggers carries out least square fitting to obtain the precise time letter of corresponding electric signal
Breath.Single event frame generation module in fpga chip encapsulates the matching of obtained location information, energy information and temporal information simultaneously
As a single event frame.These single event frames are finally sent to master controller 47 in a packed fashion.Master controller 47
It can according to need and event frame feeding network interface is stored or generated to data information；Single event data can also be carried out online
Preliminary performance parameter is calculated in classification processing.Finally by the display of display equipment 45 and reporting performance parameters and test knot
Fruit, this belongs to technical means commonly used by such a person skilled in the art, and details are not described herein.The connection of above-mentioned electronic circuit can pass through
The duct 48 (Fig. 8) being built in probe portion main body 41 carries out, this belongs to those skilled in the art's technological means easy to accomplish,
Details are not described herein.
The step of crystal test device provided by the utility model is when carrying out scintillation crystal test is as follows:
Step 1: scintillation crystal to be measured is got out, is successively installed in crystal test cell 23 by hand；
Step 2: crystal test cell 23 is installed on and is loaded in main body 21；
Step 3: will load main body 21 and be installed in coupling unit 30, adjust loading main body by driver 16 and couple
Position in component 30；
Step 4: it after the completion of scintillation crystal is coupled with electrooptical device 52, is acquired by button log-on data；
Step 5: exploring block 40 acquires data and sends data to master controller 47, and master controller 47 carries out
Data analysis obtains temporal information, location information and the energy information of scintillation crystal, while these information are passed through display equipment
It is shown；
Step 6: repeatedly, until all device is closed in test to all scintillation crystals after the completion.
The shape of another embodiment according to the present utility model, the promotion part 15 in Fig. 3 is also designed to other shapes
Shape, such as M shape, circle, annular, triangle, figure and other irregular shapes etc. are only used as example herein rather than limit
System；Driver 16 may be arranged as other step devices or electronic driver so that the move distance of push rod 14 more
Accurately, details are not described herein.It will be apparent to a skilled person that in the fig. 3 embodiment, knob, push rod 14 with push away
Cooperation into portion 15 can also be replaced using spring and the cooperation of promotion part 15, at this point, the bottom of lid 12 is fixed in one end of spring
The other end of spring is fixed in portion, promotion part 15, and details are not described herein.
Another embodiment according to the present utility model, in the fig. 4 embodiment, the shape for loading main body 21 can also be set
Other shapes are calculated as, for example cylindric, section is the other shapes such as the column of triangle, it is sliding when being designed as other shapes
The quantity of block 25 can be deleted according to demand so that loading main body 21 and can sliding in coupling unit 30 is advisable, herein
It repeats no more.
Another embodiment according to the present utility model, propulsive element 10, loading part 20, coupling unit 30 and probe portion
The ionising radiation when shell of anti-ionising radiation can also be arranged to prevent test in the outside of part 40 from source of penetrating is to tester
Member damages, and details are not described herein.
Scintillation crystal test device provided by the utility model uses tubular docking structure and step by step structure, so that should
The structure of device is simple, easy to operate；Meanwhile the device volume is small and exquisite, and lightweight machined material can be used, portability is high；
In addition, the device provides a dark condition, tubular structure pair using inscribed tubular structure for the test of scintillation crystal
The cavity connect increases the stability of scintillation crystal and electrooptical device coupling, and test result reliability is high, while in equipment
In be integrated with preliminary test result display function, can be used for detection, the maintenance service of large-scale digital PET device.
Above-described, the only preferred embodiment of the utility model is not intended to limit the scope of the utility model, this
Above-described embodiment of utility model can also make a variety of changes.I.e. all claims according to the present utility model application and
Simple, equivalent changes and modifications, fall within the claims of the utility model patent made by description.This
The not detailed description of utility model is routine techniques content.
Claims (18)
1. a kind of scintillation crystal test device characterized by comprising
Propulsive element, the driver that the propulsive element has push rod and connect with the push rod；
Loading part, the loading part include that loading main body and crystal test cell, the crystal test cell are set to institute
It states and loads in main body；
Coupling unit, the coupling unit are cylindrical in shape, and the first coupling form, the loading part are provided on the coupling unit
It is set to inside the coupling unit, the propulsive element is fixed on one end of the coupling unit, described in the push rod contradicts
Load main body；And
Exploring block, the exploring block include that electrooptical device and the electronics connecting with the electrooptical device are read
Device out, the exploring block are set to the other end of the coupling unit, are provided on the exploring block and described first
Couple the matched second coupling form of form, scintillation crystal and the electrooptical device coupling in the crystal test cell
It closes.
2. scintillation crystal test device according to claim 1, which is characterized in that one end of the coupling unit is formed with
Threaded cover shape is arranged in inside in screw thread, the propulsive element, and the propulsive element and the coupling unit pass through screw thread coupling
It closes and fixes.
3. scintillation crystal test device according to claim 1, which is characterized in that the push rod is set to the promotion part
The center of part, one end of the push rod are connect with the driver, and the other end of the push rod is formed with promotion part.
4. scintillation crystal test device according to claim 3, which is characterized in that the driver is knob, described to push away
It is provided on bar and the matched screw thread of the knob.
5. scintillation crystal test device according to claim 3, which is characterized in that the plane where the promotion part is vertical
Axis where the push rod, the promotion part are formed as crux, circular plate type, triangle or polygon.
6. scintillation crystal test device according to claim 1, which is characterized in that be provided with first in the loading main body
Buffer unit, first buffer unit are set to simultaneously on the outside of the crystal test cell.
7. scintillation crystal test device according to claim 6, which is characterized in that first buffer unit includes more
First spring and one first platform, first spring are arranged around the crystal test cell, and the one of first spring
End is set in the loading main body, and the other end of first spring is connect with first platform, on first platform
It is provided with and matched first aperture of the size of the crystal test cell.
8. scintillation crystal test device according to claim 1, which is characterized in that in the loading main body with the crystal
The opposite side of test cell is provided with the source of penetrating.
9. scintillation crystal test device according to claim 1, which is characterized in that be provided in the loading main body multiple
Sliding block, multiple guide-track grooves with sliding block cooperation are provided on the coupling unit inner wall, and the sliding block is placed in described lead
In track slot.
10. scintillation crystal test device according to claim 9, which is characterized in that the sliding block is set to the loading
On the side of main body, the extending direction of the sliding block is parallel with the length direction of the scintillation crystal.
11. scintillation crystal test device according to claim 1, which is characterized in that the crystal test cell has crystalline substance
Body set, the crystal put on the multiple shrinkage pools of setting, and the scintillation crystal is installed in the shrinkage pool.
12. scintillation crystal test device according to claim 1, which is characterized in that outside the other end of institute's coupling unit
It is provided with several docking clamps on wall, several are provided on the inner wall of the exploring block with described and docks what clamp cooperated
Dock card slot.
13. scintillation crystal test device according to claim 1, which is characterized in that set on the electronics read-out device
It is equipped with the second buffer unit, second buffer unit is set to simultaneously on the outside of the electrooptical device.
14. scintillation crystal test device according to claim 13, which is characterized in that second buffer unit includes more
Root second spring and one second platform, the second spring are arranged around the electrooptical device, the second spring
One end is set on the electronics read-out device, and the other end of the second spring is connect with second platform, and described
It is provided on two platforms and matched second aperture of the size of the electrooptical device.
15. scintillation crystal test device according to claim 1, which is characterized in that set on the outer wall of the exploring block
It is equipped with display screen, the display screen is connect with the electronics read-out device.
16. scintillation crystal test device according to claim 15, which is characterized in that set on the outer wall of the exploring block
It is equipped with key, the key is connect with the electronics read-out device.
17. scintillation crystal test device according to claim 1, which is characterized in that outside the electronics read-out device
The fixed block being arranged symmetrically is provided on wall, the fixed block is connected by the outer wall of third spring and the electronics read-out device
It connects.
18. scintillation crystal test device according to claim 1, which is characterized in that the propulsive element, the coupling part
Anti- ionising radiation shell is provided on the outside of part and the exploring block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822169103.7U CN209400446U (en) | 2018-12-22 | 2018-12-22 | A kind of scintillation crystal test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822169103.7U CN209400446U (en) | 2018-12-22 | 2018-12-22 | A kind of scintillation crystal test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444182A (en) * | 2018-12-22 | 2019-03-08 | 苏州瑞派宁科技有限公司 | A kind of scintillation crystal test device |
| WO2023092447A1 (en) * | 2021-11-24 | 2023-06-01 | 湖北锐世数字医学影像科技有限公司 | Test device and test method based thereon |
-
2018
- 2018-12-22 CN CN201822169103.7U patent/CN209400446U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444182A (en) * | 2018-12-22 | 2019-03-08 | 苏州瑞派宁科技有限公司 | A kind of scintillation crystal test device |
| WO2023092447A1 (en) * | 2021-11-24 | 2023-06-01 | 湖北锐世数字医学影像科技有限公司 | Test device and test method based thereon |
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