CN219915946U - Crystal detector - Google Patents
Crystal detector Download PDFInfo
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- CN219915946U CN219915946U CN202321100044.2U CN202321100044U CN219915946U CN 219915946 U CN219915946 U CN 219915946U CN 202321100044 U CN202321100044 U CN 202321100044U CN 219915946 U CN219915946 U CN 219915946U
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- crystal
- block
- connecting plate
- fixedly connected
- moving block
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- 239000013078 crystal Substances 0.000 title claims abstract description 59
- 239000012528 membrane Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000523 sample Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Measurement Of Radiation (AREA)
Abstract
The utility model discloses a crystal detector, which belongs to the technical field of crystal detectors and comprises a base, wherein a reflection wrapping film is fixedly arranged on the base, a crystal block is arranged on the inner side of the reflection wrapping film, a shell is fixedly connected on the base, a screw rod is rotationally connected on the inner side of the shell, a motor is fixedly arranged at the top of the shell, the output end of the motor is fixedly connected with the screw rod, a moving block is connected on the screw rod in a threaded manner, one side of the moving block extends out of the shell and is connected with a connecting plate, the side wall of the connecting plate is fixedly connected with a mounting plate, two through grooves are formed in the mounting plate, and an SiPM sensor and a photodiode are respectively arranged in the two through grooves of the mounting plate. The motor drives the screw rod to rotate, the screw rod drives the moving block to move upwards or downwards along the axial direction of the screw rod, and the moving block drives the mounting plate to move up and down through the connecting plate, so that the distance between the SiPM sensor and the photodiode and the crystal block is adjusted.
Description
Technical Field
The utility model belongs to the technical field of crystal detectors, and particularly relates to a crystal detector.
Background
The method is most convenient and suitable for high-efficiency detection means in the aspect of radioactive detection, and is used for analyzing and measuring the scintillation crystal connected with a photoelectric conversion device, and the reflectivity and the light collection rate of the scintillation crystal define the energy resolution and the detection width range of radioactive ray detection, especially the energy resolution or the photon counting requirement of the scintillation crystal in the aspect of imaging by utilizing a multi-array scintillator. Photomultiplier tubes (PMTs) and SIPMs are currently commonly used in the art as low-light single photon counting detectors.
The prior patent with the publication number of CN207623541U discloses a crystal detector, and the SiPM sensor and the photodiode arranged in the crystal detector ensure the detection range of the crystal detector, so that the detection of crystals with high radioactivity and low radioactivity can be realized.
In the related art, the SiPM sensor and the photodiode are mounted on the same outer surface of the crystal block, and the mounting manner cannot meet the experimental requirement, so that the adjustment of the distance between the crystal detector and the crystal block needs to be improved.
Disclosure of Invention
In order to facilitate adjustment of the distance between the crystal detector and the crystal block, the utility model provides the crystal detector.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a crystal detector, includes the base, fixedly provided with reflection parcel membrane on the base, reflection parcel membrane inboard is provided with the crystal piece, fixedly connected with casing on the base, the casing inboard rotates and is connected with the lead screw, casing top fixed mounting has the motor, the output and the lead screw fixed connection of motor, threaded connection has the movable block on the lead screw, the casing is extended to movable block one side and is connected with the connecting plate, connecting plate lateral wall fixedly connected with mounting panel, two logical grooves have been seted up on the mounting panel, siPM sensor and photodiode are installed respectively to the mounting panel lie in two logical grooves.
Through adopting above-mentioned technical scheme, drive the lead screw through the motor and rotate, the lead screw drives the movable block and upwards or down along the lead screw axial, and the movable block reciprocates, drives the connecting plate and reciprocates, and the connecting plate drives the mounting panel and reciprocates, and then adjusts the distance between SiPM sensor and photodiode and the crystal piece.
Preferably, the crystal block is composed of a single or a plurality of scintillator crystal bars, and the surface of the scintillator crystal bars is provided with a total reflection film.
By adopting the technical scheme, the setting of the total reflection film can improve the photon collection rate and the working efficiency of the detector.
Preferably, the moving block is a rectangular block, and the moving block is in sliding contact with inner side walls at two sides of the shell.
Through adopting above-mentioned technical scheme, through movable block and casing both sides inside wall contact, stable reciprocates the movable block, can not take place to rotate.
Preferably, the movable block side wall fixedly connected with instruction strip, casing lateral wall fixedly connected with fixed plate, the fixed plate surface is provided with the scale value with instruction strip looks adaptation.
By adopting the technical scheme, the scale value of the surface of the fixed plate is compared by the indication strip, so that the moving distance of the moving block, namely the distance between the SiPM sensor and the photodiode and the crystal block, is determined.
Preferably, the moving block is fixedly connected with a fulcrum, and the connecting plate is rotatably connected with the fulcrum.
Through adopting above-mentioned technical scheme, conveniently rotate connecting plate and mounting panel to keeping away from crystal piece directly over one side, the convenient crystal piece of operating.
Preferably, the movable block bottom is provided with the inserted bar in a penetrating way, the slot with inserted bar looks adaptation is seted up to the connecting plate bottom, inserted bar bottom fixedly connected with fixed block, inserted bar outside cover is equipped with the spring, the spring respectively with fixed block and movable block fixed connection.
Through adopting above-mentioned technical scheme, through the restoring force effect of spring, drive the inserted bar and insert in the slot of connecting plate bottom, and then fixed connection board, the fixed block of pulling down makes the inserted bar shift out the slot of connecting plate bottom, can rotate the connecting plate.
Preferably, a central controller is fixedly arranged on the base, and the central controller is electrically connected with the SiPM sensor and the photodiode.
By adopting the technical scheme, the optical signals received by the SiPM sensor and the photodiode are transmitted to the central controller and processed by the central controller.
Compared with the prior art, the utility model has the beneficial effects that:
1. the motor drives the screw rod to rotate, the screw rod drives the moving block to move upwards or downwards along the axial direction of the screw rod, the moving block moves up and down, the connecting plate is driven to move up and down, the connecting plate drives the mounting plate to move up and down, the distance between the SiPM sensor and the photodiode and the crystal block is further adjusted, the scale value on the surface of the fixing plate is compared through the indicating strip, and the moving distance of the moving block, namely the distance between the SiPM sensor and the photodiode and the crystal block, is further determined.
2. Through pulling down the fixed block, make the inserted bar shift out the slot of connecting plate bottom, can rotate the connecting plate, rotate connecting plate and mounting panel to keeping away from one side directly over the crystal piece, the convenient crystal piece of operating.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the structure of the present utility model from another view;
fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.
In the figure: 1. a base; 2. a reflective wrap film; 3. a crystal block; 4. a housing; 5. a screw rod; 6. a motor; 7. a moving block; 8. a connecting plate; 9. a mounting plate; 10. SiPM sensors; 11. a photodiode; 12. an indicator bar; 13. a fixing plate; 14. a support shaft; 15. a rod; 16. a fixed block; 17. a spring; 18. and a central controller.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-3, a crystal detector comprises a base 1, wherein a reflection wrapping film 2 is fixedly arranged on the base 1, a crystal block 3 is arranged on the inner side of the reflection wrapping film 2, the crystal block 3 is composed of a single or a plurality of scintillator crystal strips, a total reflection film is arranged on the surface of each scintillator crystal strip, and the total reflection film can improve photon collection rate and the working efficiency of the detector. The base 1 is fixedly connected with a shell 4, the inner side of the shell 4 is rotationally connected with a screw rod 5, the screw rod 5 is rotationally connected with the top wall and the bottom wall of the inner side of the shell 4, a motor 6 is fixedly installed at the top of the shell 4, the output end of the motor 6 is fixedly connected with the screw rod 5, a moving block 7 is in threaded connection with the screw rod 5, the screw rod 5 is driven to rotate through the motor 6, and the screw rod 5 drives the moving block 7 to axially move upwards or downwards along the screw rod 5.
Wherein, movable block 7 is the rectangle piece, and movable block 7 and the contact of casing 4 both sides inside wall sliding contact, through movable block 7 and casing 4 both sides inside wall contact, the stable reciprocating to movable block 7 can not take place to rotate.
Further, one side of the moving block 7 extends out of the shell 4 and is connected with a connecting plate 8, the connecting plate 8 is of a convex structure, the side wall of the connecting plate 8 is fixedly connected with a mounting plate 9, two through grooves are formed in the mounting plate 9, the SiPM sensor 10 and the photodiode 11 are respectively arranged in the two through grooves of the mounting plate 9, the moving block 7 moves up and down, the connecting plate 8 is driven to move up and down, the connecting plate 8 drives the mounting plate 9 to move up and down, and then the distance between the SiPM sensor 10 and the photodiode 11 and the crystal block 3 is adjusted. The SiPM sensor 10 and the photodiode 11 are symmetrically arranged, so that the equal quantity of photons absorbed by the SiPM sensor 10 and the photodiode 11 can be ensured.
In addition, a central controller 18 is fixedly installed on the base 1, the central controller 18 is electrically connected with the SiPM sensor 10 and the photodiode 11, the central controller 18 is in the prior art, optical signals received by the SiPM sensor 10 and the photodiode 11 are transmitted to the central controller 18, the central controller 18 processes the optical signals, and the received signal values are compared with threshold values set by a user and then selected.
Referring to fig. 1, an indicator strip 12 is fixedly connected to the side wall of the moving block 7, a fixed plate 13 is fixedly connected to the outer side wall of the housing 4, a scale value matched with the indicator strip 12 is arranged on the surface of the fixed plate 13, and the scale value on the surface of the fixed plate 13 is compared with the indicator strip 12, so that the moving distance of the moving block 7, namely the distance between the SiPM sensor 10 and the photodiode 11 and the crystal block 3, is determined.
Referring to fig. 2-3, a support shaft 14 is fixedly connected to the moving block 7, and the connecting plate 8 is rotatably connected with the support shaft 14, so that the connecting plate 8 and the mounting plate 9 can be conveniently rotated to a side far from the position right above the crystal block 3, and the crystal block 3 can be conveniently operated. The movable block 7 bottom runs through and is provided with inserted bar 15, the slot with inserted bar 15 looks adaptation is seted up to connecting plate 8 bottom, inserted bar 15 bottom fixedly connected with fixed block 16, the outside cover of inserted bar 15 is equipped with spring 17, spring 17 respectively with fixed block 16 and movable block 7 fixed connection, through the restoring force effect of spring 17, drive inserted bar 15 insert in the slot of connecting plate 8 bottom, and then fixed connection board 8, downward pulling fixed block 16 makes inserted bar 15 shift out the slot of connecting plate 8 bottom, can rotate connecting plate 8.
The principle of operation of the present utility model will now be described as follows: the motor 6 drives the screw rod 5 to rotate, the screw rod 5 drives the moving block 7 to move upwards or downwards along the axial direction of the screw rod 5, the moving block 7 moves up and down, the connecting plate 8 is driven to move up and down, the connecting plate 8 drives the mounting plate 9 to move up and down, the distance between the SiPM sensor 10 and the photodiode 11 and the crystal block 3 is further adjusted, the scale value on the surface of the fixing plate 13 is compared through the indicating strip 12, and the moving distance of the moving block 7, namely the distance between the SiPM sensor 10 and the photodiode 11 and the crystal block 3, is further determined.
The fixed block 16 is pulled downwards, so that the inserted link 15 moves out of the slot at the bottom of the connecting plate 8, the connecting plate 8 can be rotated, the connecting plate 8 and the mounting plate 9 are rotated to the side far away from the position right above the crystal block 3, the crystal block 3 is convenient to operate, then the connecting plate 8 and the mounting plate 9 are reset, and the inserted link 15 is driven to be inserted into the slot at the bottom of the connecting plate 8 through the restoring force of the spring 17, so that the connecting plate 8 is fixed.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, shall cover the scope of the present utility model by equivalent substitution or modification according to the technical scheme of the present utility model and the application concept thereof.
Claims (7)
1. The utility model provides a crystal detector, includes base (1), its characterized in that, fixedly on base (1) be provided with reflection parcel membrane (2), reflection parcel membrane (2) inboard is provided with crystal piece (3), fixedly connected with casing (4) on base (1), casing (4) inboard rotation is connected with lead screw (5), casing (4) top fixed mounting has motor (6), the output and lead screw (5) fixed connection of motor (6), threaded connection has movable block (7) on lead screw (5), casing (4) and be connected with connecting plate (8) are extended to movable block (7) one side, connecting plate (8) lateral wall fixedly connected with mounting panel (9), two logical grooves have been seted up on mounting panel (9), siPM sensor (10) and photodiode (11) are installed respectively in two logical grooves to mounting panel (9).
2. A crystal detector according to claim 1, characterized in that the crystal block (3) consists of a single or a plurality of scintillator crystal boules, and that the surface of the scintillator crystal boules is provided with a total reflection film.
3. A crystal detector according to claim 1, wherein the moving block (7) is a rectangular block, and the moving block (7) is in sliding contact with inner side walls on both sides of the housing (4).
4. A crystal detector according to claim 1, characterized in that the side wall of the moving block (7) is fixedly connected with an indication strip (12), the outer side wall of the shell (4) is fixedly connected with a fixing plate (13), and the surface of the fixing plate (13) is provided with a scale value matched with the indication strip (12).
5. A crystal probe according to claim 1, wherein the moving block (7) is fixedly connected with a support shaft (14), and the connecting plate (8) is rotatably connected with the support shaft (14).
6. The crystal detector according to claim 1, wherein the bottom of the moving block (7) is provided with a plug rod (15) in a penetrating manner, the bottom of the connecting plate (8) is provided with a slot matched with the plug rod (15), the bottom end of the plug rod (15) is fixedly connected with a fixed block (16), the outer side of the plug rod (15) is sleeved with a spring (17), and the spring (17) is fixedly connected with the fixed block (16) and the moving block (7) respectively.
7. A crystal detector according to claim 1, characterized in that a central controller (18) is fixedly mounted on the base (1), the central controller (18) being electrically connected to both the SiPM sensor (10) and the photodiode (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321100044.2U CN219915946U (en) | 2023-05-09 | 2023-05-09 | Crystal detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321100044.2U CN219915946U (en) | 2023-05-09 | 2023-05-09 | Crystal detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219915946U true CN219915946U (en) | 2023-10-27 |
Family
ID=88431636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321100044.2U Active CN219915946U (en) | 2023-05-09 | 2023-05-09 | Crystal detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219915946U (en) |
-
2023
- 2023-05-09 CN CN202321100044.2U patent/CN219915946U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231227 Address after: Room 113-1, Building A, No. 36 Moganshan Road, Xinqi Street, Beilun District, Ningbo City, Zhejiang Province, 315800 Patentee after: Ningbo Yibo Optoelectronic Technology Co.,Ltd. Address before: 201800 zone a, floor 1, building 1, No. 1288, boxue Road, Malu Town, Jiading District, Shanghai Patentee before: Shanghai Yibo Photoelectric Technology Co.,Ltd. |