CN209400706U - Combine scintillation crystal and the radiation detector assembly including the combination scintillation crystal - Google Patents
Combine scintillation crystal and the radiation detector assembly including the combination scintillation crystal Download PDFInfo
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- CN209400706U CN209400706U CN201822156000.7U CN201822156000U CN209400706U CN 209400706 U CN209400706 U CN 209400706U CN 201822156000 U CN201822156000 U CN 201822156000U CN 209400706 U CN209400706 U CN 209400706U
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- 239000013078 crystal Substances 0.000 title claims abstract description 184
- 230000005855 radiation Effects 0.000 title claims abstract description 24
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 230000008901 benefit Effects 0.000 claims description 3
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- 231100000987 absorbed dose Toxicity 0.000 abstract description 4
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- 238000000429 assembly Methods 0.000 abstract 1
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- 239000000243 solution Substances 0.000 description 3
- ORCSMBGZHYTXOV-UHFFFAOYSA-N bismuth;germanium;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Ge].[Ge].[Ge].[Bi].[Bi].[Bi].[Bi] ORCSMBGZHYTXOV-UHFFFAOYSA-N 0.000 description 2
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- MRZDCFAGABOHQQ-UHFFFAOYSA-N chromium(3+);dioxido(dioxo)tungsten Chemical compound [Cr+3].[Cr+3].[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O MRZDCFAGABOHQQ-UHFFFAOYSA-N 0.000 description 1
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- NKTZYSOLHFIEMF-UHFFFAOYSA-N dioxido(dioxo)tungsten;lead(2+) Chemical compound [Pb+2].[O-][W]([O-])(=O)=O NKTZYSOLHFIEMF-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005658 nuclear physics Effects 0.000 description 1
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- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of combination scintillation crystal and radiation detector assemblies including the combination scintillation crystal.The combination scintillation crystal may include the first scintillation crystal and the second scintillation crystal, second scintillation crystal is set to the outside of first scintillation crystal and wraps up first scintillation crystal, and it is offered on second scintillation crystal and is incident on the aperture on first scintillation crystal across it for ray, wherein, the light output amount of first scintillation crystal is greater than the light output amount of second scintillation crystal.By that measured energy response curve can be made more flat, this can reduce the measured deviation of absorbed dose rate using combination scintillation crystal provided by the utility model and radiation detector assembly and system including the combination scintillation crystal.
Description
Technical field
The utility model relates to radiation detection field, in particular to a kind of combination scintillation crystal and flashed including the combination brilliant
The radiation detector assembly of body.
Background technique
The description of this part only provides and discloses relevant background information to the utility model, without constituting the prior art.
Scintillation crystal detectors may include scintillation crystal and photoelectric converter, be nuclear physics research, actinometry, core
Medical imaging devices research provides device support.Measurement for rays such as X, γ, scintillation crystal detectors are managed compared to GM
There is significant advantage in terms of sensitivity with semiconductor detector.However, since scintillation crystal is for the ray of different-energy
Effect on Detecting it is different, so detection efficient is different for the research object for being injected with same dosage rate, export different number
Scintillation pulse, this can make energy response curve measured by scintillation crystal detectors uneven, so that absorbed dose rate
The measurement result deviation of (that is, the energy for absorbing radiation after the substance raying of unit mass within the unit time) is larger.
Currently, mainly solving the problems, such as that energy response curve is uneven by the following two kinds of programs in the prior art:
(1) scintillation crystal is wrapped up using the metal barrier that the blocking radiations material such as lead, copper is constituted, so that in detection
The detection efficient to low energy rays can be reduced, so that energy response curve be made to become flat with stop portions low energy rays；
(2) using the method for electronics compensation, this method is mainly turned in rear end using multichannel comparator or simulation numeral
Measured ray energy is divided into multiple energy sections by parallel operation (ADC), then carries out weight calculation to each energy section, from
And making obtained energy response curve integrally becomes flat.
During realizing the utility model, at least there are the following problems in the prior art for inventor's discovery:
(1) method for using metal barrier, on the one hand, the blocking radiation material of package can reduce scintillation crystal spy
The sensitivity of device is surveyed, so as to cause reduced performance；On the other hand, package blocking radiation material can occupy certain volume, this meeting
Increase the volume of scintillation crystal detectors.
(2) for the method using electronics compensation, due to the energy in low energy section (130keV or less) scintillation crystal
Response variation is more violent, tends to be steady, is realized to energy response curve in the energy response of high-energy section scintillation crystal
Correction, needs to divide more energy section, this proposes higher demand for the design of back-end circuit.For example, for using
The mode of multichannel comparator, with the increase of energy segment number, the quantity of used comparator can increase at double, this is not only
It will increase circuit size and power consumption, the resource of occupied back-end processor can also increased；For using the mode of ADC,
Cause its counting rate limited since the sample rate of ADC is lower, this will affect the performance of scintillation crystal detectors, and cost compared with
It is high.
Utility model content
A kind of radiation spy the purpose of the utility model is to provide combination scintillation crystal and including the combination scintillation crystal
Device is surveyed, to solve the problems, such as at least one existing in the prior art.
In order to solve the above technical problems, the utility model provides a kind of combination scintillation crystal, the combination scintillation crystal
It may include the first scintillation crystal and the second scintillation crystal, second scintillation crystal is set to the outer of first scintillation crystal
First scintillation crystal simultaneously wraps up in portion, and offers on second scintillation crystal and pass through it for ray and be incident on described the
Aperture on one scintillation crystal, wherein the light that the light output amount of first scintillation crystal is greater than second scintillation crystal is defeated
Output.
Preferably, second scintillation crystal include the first interface coupled with external photoelectric converter, with it is described
The second opposite interface of first interface and the ray reception for connecting first interface and second interface
Face, the ray receiving plane that the aperture is located in second scintillation crystal connect with the corresponding ray in first scintillation crystal
Between receipts face, and the opening direction of the aperture is parallel with the incident direction of the ray.
Preferably, the depth of at least one aperture in all apertures opened up on second scintillation crystal
Ray receiving plane where the aperture at least described second scintillation crystal with it is corresponding in first scintillation crystal
The half of the distance between ray receiving plane.
Preferably, the depth of all apertures on each ray receiving plane of second scintillation crystal is equal to described
Ray receiving plane where aperture and the distance between the corresponding ray receiving plane in first scintillation crystal.
Preferably, the diameter of multiple apertures on second scintillation crystal and/or depth are different from each other.
Preferably, the interval between the identical and adjacent each aperture of opening direction is identical, and each described opens
The interval between hole is identical as the diameter of the aperture.
Preferably, the diameter of the aperture isWherein, N indicates the number of the aperture, is positive whole
Number, L2For the length of the ray receiving plane of second scintillation crystal.
Preferably, the shape of the aperture includes at least one of rectangular, round, diamond shape, triangle and sector.
Preferably, the shape of first scintillation crystal and second scintillation crystal includes cube, cuboid, circle
Column, sphere, prism, rotary table or segment.
The utility model additionally provides a kind of radiation detector assembly comprising photoelectric converter and said combination flashing are brilliant
Body, and second scintillation crystal in the combination scintillation crystal is coupled with the photoelectric converter.
By the above technical solution provided by the utility model as it can be seen that the utility model by using the second scintillation crystal by the
In one scintillation crystal is wrapped in, and aperture is opened up on the second scintillation crystal, and the light output amount of the second scintillation crystal is small
In the light output amount of the first scintillation crystal, this can enable the first scintillation crystals can not only detect across the second scintillation crystal
High-energy rays, can also detect from aperture inject ray, and the second scintillation crystal can with stop portions low energy rays, and
High-energy rays are only detected, so that measured energy response curve becomes flat, and then can reduce absorbed dose rate
Measured deviation.
Detailed description of the invention
It, below will be to embodiment or existing in order to illustrate more clearly of the utility model or technical solution in the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only this reality
With some embodiments of novel middle record, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of three dimensional structure diagram for combining scintillation crystal provided by the utility model；
Fig. 2 is the two-dimensional structure schematic diagram of another combination scintillation crystal provided by the utility model；
Fig. 3 is the two-dimensional structure schematic diagram of another combination scintillation crystal provided by the utility model；
Fig. 4 is aperture and when non-aperture measured energy response curve comparison diagram on the second scintillation crystal；
Fig. 5 is a kind of structural schematic diagram of radiation detector assembly provided by the utility model；
Fig. 6 is a kind of structural schematic diagram of radiation detecting system provided by the utility model.
Specific embodiment
Below in conjunction with the attached drawing in the utility model, the technical solution in the utility model is carried out clearly and completely
Description, it is clear that described embodiment is only used for illustrating a part of the embodiment of the utility model, rather than all
Embodiment, it is undesirable that limitation the scope of the utility model or claims.Based on the embodiments of the present invention, originally
Field those of ordinary skill all other embodiment obtained without making creative work, all should belong to
The range of the utility model protection.
It should be noted that it can be arranged directly on another when element is referred to as on " setting exists " another element
On element or there may also be elements placed in the middle.When element is referred to as " connection/coupling " to another element, it be can be directly
Another element is connect/be coupled in succession or may be simultaneously present centering elements.Term as used herein " connection/coupling " can
To include electrical and/or mechanical-physical connection/coupling.Term as used herein "comprises/comprising" refers to feature, step or element
Presence, but the presence or addition of one or more other features, step or element is not precluded.Term as used herein
"and/or" includes any and all combinations of one or more related listed items.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Term used herein is intended merely to the mesh of description specific embodiment
, and it is not intended to limitation the utility model.
In addition, in the description of the present invention, term " first ", " second " etc. be used for description purposes only it is similar with distinguishing
Object, between the two and be not present sequencing, indication or suggestion relative importance can not be interpreted as.In addition, in this reality
With in novel description, unless otherwise stated, " multiple " refer to two or more.
Spoke to combination scintillation crystal provided by the utility model and including the combination scintillation crystal with reference to the accompanying drawing
It penetrates detection device and system is described in detail.
As depicted in figs. 1 and 2, the utility model provides a kind of combination scintillation crystal 100, may include the first flashing
Crystal 110 and the second scintillation crystal 120, wherein the second scintillation crystal 120 can be set in the outside of the first scintillation crystal 110
And in being wrapped in the first scintillation crystal 110, and it can offer on the second scintillation crystal 120 and be incident on for ray across it
Aperture 130 on first scintillation crystal 110, the ray can be the target sample injection for having nucleic from source of penetrating or injection.
First scintillation crystal 110 can be used for detecting the ray injected by the aperture 130 on the second scintillation crystal 120 with
And the remaining high-energy rays after the blocking of the second scintillation crystal 120, it can be continuous scintillation crystal, or can be by
Multiple scintillation crystal items or scintillation crystal the block composition cut.First scintillation crystal 110 may include multiple ray receiving planes,
And it can be made of materials such as bismuth germanium oxide (BGO), lead tungstate (PbWO4), chromium tungstate (CdWO4) or gadolinium siliates (GSO), but not
It is limited to this.First scintillation crystal 110 can be the shapes such as cube, cuboid, cylinder, sphere, prism, rotary table or segment,
But not limited to this.In addition, the light output amount of the first scintillation crystal 110 can be greater than the light output amount of the second scintillation crystal 120, from
And make in subsequent processing, for the same amplitude threshold of electric signal, it can filter what the second scintillation crystal 120 detected
Low energy rays, and only handle its high-energy rays detected.
Second scintillation crystal 120 can be used for detecting high-energy rays and a part of low energy rays stopped to be incident on first
In scintillation crystal 110.Second scintillation crystal 120 can be by sodium iodide (NaI), cesium iodide (CsI), yttrium silicate (YSO) or silicic acid
The materials such as lutetium (LSO) composition, but not limited to this.Moreover, the second scintillation crystal 120, which can be, can wrap up the first scintillation crystal
110 any shape, for example, cube, cuboid, cylinder, sphere, prism, rotary table or segment etc., but not limited to this,
Shape can be identical as the first scintillation crystal 110, can also be different.The thickness or height of second scintillation crystal 120 can be greater than
The thickness or height of first scintillation crystal 110, length can be greater than or equal to the length of the first scintillation crystal 110.Second dodges
The specific size of bright crystal 120 can be determined according to the size of the first scintillation crystal 110 and performance.It should be noted that the
The length of one scintillation crystal 110 and the second scintillation crystal 120 can refer to the length on the side along the setting aperture of its direction.
Moreover, for when the first scintillation crystal 110 and the second scintillation crystal 120 are the shapes such as sphere, cylinder or rotary table, length can be with
Indicate its diameter.
Second scintillation crystal 120 may include the first interface coupled with external photoelectric converter, dock with first
One or more ray receiving planes of the second opposite interface of face and the first interface of connection and the second interface are (that is, connect
Receive the surface of ray), aperture 130 can be located at least one ray receiving plane in multiple (for example, 4) ray receiving planes
Between the corresponding ray receiving plane on the first scintillation crystal 110, and the incident direction of the opening direction of aperture 130 and ray
In parallel, in order to improving detected light quantity.It should be noted that, although illustrating only the second scintillation crystal 120 in attached drawing
In two opposite ray receiving planes on offer aperture, but can also be opened on its other two opposite ray receiving plane
Equipped with aperture.
In addition, can offer multiple apertures 130 on the second scintillation crystal 120, at least one in multiple apertures 130 is opened
The depth in hole 130 can be at least ray receiving plane and the first flashing crystalline substance where the aperture 130 in the second scintillation crystal 120
The half of the distance between correspondence ray receiving plane in body 110.Preferably, the depth of all apertures 130 can be equal to the
Ray receiving plane where the aperture 130 in two scintillation crystals 120 and the corresponding ray receiving plane in the first scintillation crystal 110
The distance between, as shown in Figure 1, for example, the depth of 5 apertures 130 in the ray receiving plane A1 of the second scintillation crystal 120 all
Equal to the distance between ray receiving plane A1 and the ray receiving plane A1 ' of the first scintillation crystal, in order to be injected by aperture 130
Ray be directly incident on the first scintillation crystal 110 so that the first scintillation crystal 110 can detect all can measure section (packet
Include low energy section and high-energy section) ray.Moreover, the depth and/or diameter of each aperture 130 can be identical, it can also not
Together, as shown in Figure 3.
In addition, the axis of the aperture 130 on opposite ray receiving plane in the second scintillation crystal 120 can be located at one
It, can be parallel with the width of the second scintillation crystal 120 or height on straight line.Each aperture 130 may each be polygon (example
Such as, rectangular, triangle, diamond shape etc.), the shapes such as round or sector, but not limited to this.The size and shape of each aperture 130 can
It with identical, can also be different, and it can be identical as the shape of the first scintillation crystal 110 and the second scintillation crystal 120 or not
Together.Moreover, the interval d between the identical and adjacent each aperture 130 of opening direction can also be identical or different.In addition, adjacent
Each aperture 130 between interval can be identical or different with the diameter of aperture 130.The diameter of each aperture 130 can be with
?It is interior, wherein N indicates the number of aperture 130, is positive integer, L2Ray for the second scintillation crystal 120 connects
The length in receipts face, it is preferable that the diameter of each aperture 130 can beOrDeng.It should be noted that for
When aperture is the polygonal shapes such as rectangular, triangle, diamond shape, diameter can also be indicated and the second scintillation crystal
The length on the parallel side of 120 ray receiving plane.
In addition, can be accounted for according to predetermined aperture 130 in the case where determining the size of the second scintillation crystal 120
The area ratio of second scintillation crystal 120 is (that is, the ratio between the gross area of aperture 130 and the gross area of the second scintillation crystal 120
Rate) determine the size of each aperture.For the identical situation of the size of each aperture 130, all can be opened identified
The gross area in hole 130 can determine that the size of each aperture 130 divided by the number of aperture 130；For multiple apertures 130
The case where size is not quite similar in conjunction with actual conditions and can account for all apertures 130 according to the area of preset each aperture 130
The lower threshold (for example, 1/6) of the gross area determine the area of each aperture 130.Wherein, aperture 130 accounts for the second flashing
The area ratio v of crystal 120 can be determined by following formula:
S (E)=S1(E)*v+(S12(E)+S2(E))*(1-v)) (1)
Wherein, S () indicates the energy response of combination scintillation crystal；S1(E) and S2(E) the second scintillation crystal is respectively indicated
The sensitivity of first scintillation crystal 110 and the second scintillation crystal 120, S when offering aperture 130 on 12012(E) indicate that second dodges
The sensitivity of first scintillation crystal 110, three can measure in advance and obtain when not opening up aperture 130 on bright crystal 120,
And its unit is CPS/ μ Gy/h；The energy of E expression ray；E0For preset energy threshold value, source is penetrated for different, it can be with
Different numerical value is taken, for example, for137Cs penetrates source, E0It can be 662keV；K is the constant between 15%~30%, preferably
It is 20% or 30%.
It can be seen from the above description that the utility model is by being wrapped up the first scintillation crystal using the second scintillation crystal
Inside, and on the second scintillation crystal aperture is opened up, this can enable the first scintillation crystals can not only detect across second
The high-energy rays of scintillation crystal can also detect the ray injected from aperture, and the second scintillation crystal can be low with stop portions
Energy-ray, this can reduce the sensitivity for low energy rays, and only detect high-energy rays, this can increase for height
The sensitivity of energy-ray, so that subsequent measured energy response curve becomes flat, as shown in Figure 4.In Fig. 4,
Black curve indicates that energy response curve measured when the non-aperture of the second scintillation crystal, Grey curves indicate the second scintillation crystal
Measured energy response curve when aperture.As can be seen from FIG. 4, compared with the non-aperture of the second scintillation crystal the case where, pass through benefit
With combination scintillation crystal provided by the utility model, measured energy response curve can be made more flat, this can be with
Reduce the measured deviation of absorbed dose rate.In addition, the utility model is hindered by substituting traditional metal using the second scintillation crystal
Barrier, this can be to avoid the reduction of sensitivity, and reduces volume.
The utility model additionally provides a kind of radiation detector assembly 1000, as shown in figure 5, it may include that said combination is dodged
Bright crystal 100, photoelectric converter 200 and signal processing component 300.
Wherein, photoelectric converter 200 is coupled with scintillation crystal 100 is combined, and can be used for that scintillation crystal 100 will be combined
The optical signal generated in response to the ray detected is converted to electric signal.Photoelectric converter 200 can be silicon photomultiplier transit
Device (SiPM), photomultiplier tube (PMT) or avalanche photodide (APD) etc., and its size can be brilliant according to combination flashing
The size of body 100 determines.
Signal processing component 300 can be used for carrying out digitized processing to the electric signal that photoelectric converter 200 generates.Signal
Processing component 300 may include amplifying circuit 310, comparator 320, counter 330 and microcontroller 340 interconnected.Its
In, amplifying circuit 310 can be used for amplifying shaping to the electric signal that photoelectric converter 200 generates；The one of comparator 320 is defeated
Entering end (for example, positive input) can connect with the output end of amplifying circuit 310, and can be used for amplifying circuit 310
The amplitude (for example, voltage) and predetermined amplitude threshold value of amplified electric signal compare and export comparing result, specifically, when
When the amplitude of electric signal is greater than or equal to predetermined amplitude threshold value, 1 can be exported, when the amplitude of electric signal is less than predetermined amplitude threshold
When value, 0 can be exported, and when the output of comparator 320 is from 1 to 0 or from 0 to 1, can produce state transition；Meter
The number that number device 330 can be used for generating comparator 320 state transition counts；Microcontroller 340 can be with comparator
320 another input terminal (for example, negative input) connection, the reference voltage of comparator 320 is arranged (that is, predetermined amplitude threshold
Value), and microcontroller can be used for being calculated the energy response of combination scintillation crystal according to the count results of counter
(that is, combining the change of sensitivity that scintillation crystal is generated for the ray of different-energy).
It can be seen from the above description that only needing comparator all the way in the present invention, and multichannel ratio is not needed
Compared with device or adc circuit, this can reduce the complexity and power consumption of radiation detector assembly, can also reduce cost.
The utility model additionally provides a kind of radiation detecting system, as shown in fig. 6, it may include above-mentioned radiation detection dress
1000 are set, can also include shell 1100 and display 1200.Wherein, display 1200 can connect with radiation detector assembly 1000
It connects, to show its processing result；Shell 1100 can be used for for radiation detector assembly 1000 being coated in it, thus avoid its by
It is damaged to the external world.
Although the utility model provides combination scintillation crystal as described in above-described embodiment or attached drawing and including the combination
The radiation detector assembly and system of scintillation crystal, but based on routine or without creative labor provided by the utility model
It may include more or less component in radiation detector assembly and system.
System, device, component, module that above-described embodiment illustrates etc. can specifically realize by chip and/or entity, or
Person is realized by the product with certain function.For convenience of description, various parts are divided into function when describing apparatus above
It describes respectively.It certainly, can be the function of each component in same or multiple chips and/or entity when implementing the utility model
Middle realization.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and the highlights of each of the examples are differences from other embodiments.
Above-described embodiment be for convenient for those skilled in the art it will be appreciated that and using the utility model and
Description.Person skilled in the art obviously easily can make various modifications to these embodiments, and saying herein
Bright General Principle is applied in other embodiments without having to go through creative labor.Therefore, the utility model is not limited to
Embodiment is stated, those skilled in the art's announcement according to the present utility model does not depart from the improvement that the utility model scope is made
It should be all within the protection scope of the utility model with modification.
Claims (10)
1. a kind of combination scintillation crystal, which is characterized in that the combination scintillation crystal includes the first scintillation crystal and the second flashing
Crystal, second scintillation crystal are set to the outside of first scintillation crystal and wrap up first scintillation crystal, and
It is offered on second scintillation crystal and is incident on the aperture on first scintillation crystal across it for ray, wherein is described
The light output amount of first scintillation crystal is greater than the light output amount of second scintillation crystal.
2. combination scintillation crystal according to claim 1, which is characterized in that second scintillation crystal include with it is external
The first interface, second interface opposite with first interface and the connection described first of photoelectric converter coupling
The ray receiving plane of interface and second interface, the aperture are located at the ray receiving plane in second scintillation crystal
Between the corresponding ray receiving plane in first scintillation crystal, and the opening direction of the aperture and the ray enter
It is parallel to penetrate direction.
3. combination scintillation crystal according to claim 2, which is characterized in that the institute opened up on second scintillation crystal
Penetrating where the aperture for thering is the depth of at least one aperture in the aperture to be at least in second scintillation crystal
The half of line receiving plane and the distance between corresponding ray receiving plane in first scintillation crystal.
4. combination scintillation crystal according to claim 3, which is characterized in that each ray of second scintillation crystal connects
The depth of all apertures on receipts face is equal in the ray receiving plane and first scintillation crystal where the aperture
The distance between corresponding ray receiving plane.
5. combination scintillation crystal according to claim 2 or 3, which is characterized in that multiple on second scintillation crystal
The diameter and/or depth of the aperture are different from each other.
6. combination scintillation crystal according to claim 1, which is characterized in that identical and adjacent each described of opening direction
Interval between aperture is identical, and the interval between each aperture is identical as the diameter of the aperture.
7. the combination scintillation crystal according to claim 2 or 6, which is characterized in that the diameter of the aperture isWherein, N indicates the number of the aperture, is positive integer, L2It is received for the ray of second scintillation crystal
The length in face.
8. combination scintillation crystal according to claim 1, which is characterized in that the shape of the aperture include it is rectangular, round,
At least one of diamond shape, triangle and sector.
9. combination scintillation crystal according to claim 1, which is characterized in that first scintillation crystal and described second dodges
The shape of bright crystal includes cube, cuboid, cylinder, sphere, prism, rotary table or segment.
10. a kind of radiation detector assembly comprising photoelectric converter, which is characterized in that the radiation detector assembly further includes power
Benefit requires 1 to 9 described in any item combination scintillation crystals, and second scintillation crystal in the combination scintillation crystal with
The photoelectric converter coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822156000.7U CN209400706U (en) | 2018-12-21 | 2018-12-21 | Combine scintillation crystal and the radiation detector assembly including the combination scintillation crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN109407139A (en) * | 2018-12-21 | 2019-03-01 | 苏州瑞派宁科技有限公司 | Combine scintillation crystal and radiation detector assembly and system including combining scintillation crystal |
| WO2020125123A1 (en) * | 2018-12-21 | 2020-06-25 | 苏州瑞派宁科技有限公司 | Scintillation crystal assembly and radiation detection device and system comprising same |
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