Scintillator light output and afterglow detection device

Abstract

The utility model provides a light output and afterglow detection device for a scintillator, which belongs to the technical field of scintillator detection and comprises a test board, a light-transmitting part, a light-receiving part, a light-emitting part, a light-receiving part and a light-emitting part, and is characterized in that the test board is provided with the light-transmitting part for bearing the scintillator; the ray bulb tube is aligned with the light transmitting part from one direction, and the ray bulb tube is used for emitting rays to a scintillator; the detection camera is aligned with the light transmitting part from the other direction, and the detection camera is used for shooting a scintillator and generating a real-time image; the calculation device is electrically connected with the detection camera, and a sample image is stored in the calculation device. The utility model has the beneficial effects that the light output and afterglow absolute value of the scintillator can be obtained by closing the opened ray bulb tube, continuously shooting the darkened scintillator in unit time by using the detection camera and generating a real-time image, and comparing the real-time image with a sample image and calculating by using the calculating device, so that the result is more accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of scintillator detection, and relates to a device for detecting the light output and afterglow of a scintillator. Background Technique

[0002] A scintillator is a type of material that can emit light after absorbing high-energy particles or rays, and plays a very important role in the field of radiation detection. Usually, it is processed into a crystal in applications, called a scintillation crystal.

[0003] For example, a patent for invention with an application number of CN202311193893.1 provides an automatic screening system for scintillation crystals, including: a loading tray for placing a number of scintillation crystals to be screened; all unloading trays are respectively used for placing scintillation crystals with different performance grades after screening; a loading picking and placing unit for conveying the scintillation crystals to be screened in the loading tray to a performance detection unit; the performance detection unit is used to detect the scintillation crystals to be screened, obtain the probability distribution spectrum of the scintillation crystals, and transmit the probability distribution spectrum of the scintillation crystals to the control unit; the control unit stores the standard sample peak position, outputs the full-energy peak information of the scintillation crystals according to the received probability distribution spectrum of the scintillation crystals, and calculates the relative light output ratio of the scintillation crystals; the control unit is connected to the unloading picking and placing unit to facilitate controlling the unloading picking and placing unit to convey the scintillation crystals to the corresponding performance grade unloading trays.

[0004] To sum up, although some existing technical solutions can automatically detect and screen the performance of scintillation crystals, the actual results are not accurate enough, and at the same time, the afterglow of the scintillator cannot be measured, so there is a large room for improvement. Summary of the Invention

[0005] The purpose of the utility model is to provide a device for detecting the light output and afterglow of a scintillator in view of the above problems existing in the prior art.

[0006] The purpose of the utility model can be achieved by the following technical solutions: A device for detecting the light output and afterglow of a scintillator, including:

[0007] A detection table provided with a light-transmitting part for carrying the scintillator;

[0008] An X-ray tube that aligns with the light-transmitting part from one direction, and the X-ray tube is used to emit rays towards the scintillator;

[0009] A detection camera that aligns with the light-transmitting part from another direction, and the detection camera is used to photograph the scintillator and generate a real-time image;

[0010] A computing device, which is electrically connected to the detection camera. The computing device stores sample images and is used to compare the real-time image with the sample images and calculate the light output and the absolute value of the afterglow of the scintillator.

[0011] In the above scintillator light output and afterglow detection device, it further includes a workbench, which is a light-shielding member. The detection table, the ray tube, and the detection camera are all located inside the workbench.

[0012] In the above scintillator light output and afterglow detection device, it further includes a high-reflection mirror, which is arranged inside the workbench. The detection table is located between the ray tube and the high-reflection mirror. The ray tube and the high-reflection mirror are separated by the light-transmitting part. The high-reflection mirror is used to project the scintillator on the light-transmitting part onto the detection camera.

[0013] In the above scintillator light output and afterglow detection device, it further includes a first moving component, which includes a first moving seat and a first moving driving element. The first moving driving element can drive the first moving seat to move relative to the workbench. The high-reflection mirror is arranged on the first moving seat.

[0014] In the above scintillator light output and afterglow detection device, the first moving component further includes a first rack and a first gear. The first moving driving element is a first motor. The first rack is connected to the workbench. The first motor is connected to the first moving seat. The first gear is connected to the output shaft of the first motor. The first gear meshes with the first rack.

[0015] In the above scintillator light output and afterglow detection device, it further includes a second moving component, which includes a second moving seat and a second moving driving element. The second moving driving element can drive the second moving seat to move relative to the first moving seat. The high-reflection mirror is arranged on the second moving seat. The moving direction of the second moving seat is perpendicular to the moving direction of the first moving seat.

[0016] In the above scintillator light output and afterglow detection device, the second moving component further includes a second rack and a second gear. The second moving driving element is a second motor. The second rack is connected to the first moving seat. The second motor is connected to the second moving seat. The second gear is connected to the output shaft of the second motor. The second gear meshes with the second rack.

[0017] In the above scintillator light output and afterglow detection device, it further includes an angle adjustment assembly. The angle adjustment assembly includes a horizontal frame and a vertical frame. The horizontal frame is connected to the second moving seat, the vertical frame is connected to the horizontal frame, one end of the high-reflection mirror contacts the horizontal frame, and the other end of the high-reflection mirror contacts the vertical frame.

[0018] In the above scintillator light output and afterglow detection device, the angle adjustment assembly further includes a first clamping block and a second clamping block. The first clamping block is movably connected to the horizontal frame, the second clamping block is vertically movably connected to the vertical frame. The first clamping block contacts one end of the high-reflection mirror, and the second clamping block contacts the other end of the high-reflection mirror.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1. In this embodiment, by closing the opened ray tube and using the detection camera to continuously photograph the dimming scintillator within a unit time to generate a real-time image, and the calculation device is used to compare the real-time image with the sample image and calculate, the light output and the absolute value of the afterglow of the scintillator can be obtained, and the result is relatively accurate.

[0021] 2. The detection table is located between the ray tube and the high-reflection mirror. The high-reflection mirror is used to project the scintillator on the light-transmitting part onto the detection camera, so that the detection camera can indirectly photograph the real-time image of the scintillator without facing the direct radiation of the rays. Therefore, while ensuring the accuracy of the detection result, it is more beneficial to protect the detection camera.

[0022] 3. The first moving drive element can drive the first moving seat to move relative to the workbench, thereby adjusting the position of the high-reflection mirror relative to the workbench, so that the detection camera can accurately receive the image of the scintillator reflected by the high-reflection mirror.

[0023] 4. The first moving drive element can drive the first moving seat to move, the second moving drive element can drive the second moving seat to move, and the angle adjustment assembly can adjust the angle of the high-reflection mirror, so as to combine and realize the movement of three degrees of freedom of the high-reflection mirror, and the position and reflection angle of the high-reflection mirror can be adjusted, which is convenient and has high precision.

[0024] 5. The first clamping block contacts one end of the high-reflection mirror and the second clamping block contacts the other end of the high-reflection mirror. A clamping space is formed between the first clamping block and the second clamping block. The high-reflection mirror is clamped from different positions by the first clamping block and the second clamping block to adjust the angle of the high-reflection mirror. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the front view of the scintillator light output and afterglow detection device of the present utility model.

[0026] Figure 2 This is a schematic structural diagram of the scintillator light output and afterglow detection device of the present utility model.

[0027] Figure 3 This is a schematic structural diagram of the detection camera, first moving component, second moving component and angle adjustment component of the present utility model.

[0028] Figure 4 This is a left view of the detection camera, first moving component, second moving component and angle adjustment component of the present utility model.

[0029] Figure 5 This is a front view of the detection camera, first moving component, second moving component and angle adjustment component of the present utility model.

[0030] Figure 6 This is a schematic structural diagram of the X-ray tube of the present utility model.

[0031] Figure 7 This is a schematic structural diagram of the workbench of the present utility model.

[0032] In the figure, 100 is the detection table; 110 is the light-transmitting part; 200 is the X-ray tube; 300 is the detection camera; 400 is the computing device; 500 is the workbench; 600 is the high-reflection mirror; 700 is the first moving component; 710 is the first moving seat; 720 is the first motor; 730 is the first rack; 740 is the first gear; 800 is the second moving component; 810 is the second moving seat; 820 is the second motor; 830 is the second rack; 840 is the second gear; 900 is the angle adjustment component; 910 is the cross frame; 920 is the longitudinal frame; 930 is the first clamping block; 940 is the second clamping block. Specific Embodiments

[0033] The following are specific embodiments of the present utility model and in combination with the accompanying drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0036] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0039] As Figures 1-7 shown, a scintillator light output and afterglow detection device includes: a detection table 100, a ray tube 200, a detection camera 300, and a computing device 400.

[0040] Among them, the detection table 100 is provided with a light-transmitting part 110, and the light-transmitting part 110 is used to carry the scintillator.

[0041] Among them, the ray tube 200 is aligned with the light-transmitting part 110 from one direction, and the ray tube 200 is used to emit rays toward the scintillator.

[0042] Among them, the detection camera 300 is aligned with the light-transmitting part 110 from another direction, and the detection camera 300 is used to photograph the scintillator and generate a real-time image.

[0043] Among them, the computing device 400 is electrically connected to the detection camera 300. The computing device 400 stores sample images, and is configured to compare the real-time image with the sample images and calculate the light output and the absolute value of the afterglow of the scintillator through calculation.

[0044] In this embodiment, by turning off the turned-on ray tube 200 and using the detection camera 300 to continuously capture the dimming scintillator within a unit time to generate a real-time image, and the computing device 400 is configured to compare the real-time image with the sample images and calculate, the light output and the absolute value of the afterglow of the scintillator can be obtained, and the result is relatively accurate.

[0045] As Figures 1-7 shown, on the basis of the above embodiment, a workbench 500 is further included. The workbench 500 is a light-shielding member, and the detection table 100, the ray tube 200, and the detection camera 300 are all located within the workbench 500.

[0046] In this embodiment, the workbench 500 is a light-shielding member, and the detection table 100, the ray tube 200, and the detection camera 300 are all located within the workbench 500, thereby preventing external light sources from affecting the detection results inside the workbench 500.

[0047] As Figures 1-7 shown, on the basis of the above embodiment, a high-reflection mirror 600 is further included. The high-reflection mirror 600 is disposed within the workbench 500. The detection table 100 is located between the ray tube 200 and the high-reflection mirror 600. The ray tube 200 and the high-reflection mirror 600 are separated by the light-transmitting portion 110. The high-reflection mirror 600 is configured to project the scintillator on the light-transmitting portion 110 to the detection camera 300.

[0048] In this embodiment, the detection table 100 is located between the ray tube 200 and the high-reflection mirror 600. The high-reflection mirror 600 is used to project the scintillator on the light-transmitting portion 110 to the detection camera 300, so that the detection camera 300 indirectly captures the real-time image of the scintillator without facing the direct radiation of the rays. Therefore, while ensuring the accuracy of the detection results, it is more beneficial to protect the detection camera 300.

[0049] As Figures 1-7 shown, on the basis of the above embodiment, a first moving assembly 700 is further included. The first moving assembly 700 includes a first moving seat 710 and a first moving driving element. The first moving driving element can drive the first moving seat 710 to move relative to the workbench 500. The high-reflection mirror 600 is disposed on the first moving seat 710.

[0050] In this embodiment, the first moving driving element can drive the first moving seat 710 to move relative to the workbench 500, so as to adjust the position of the high-reflection mirror 600 relative to the workbench 500, so that the detection camera 300 can accurately receive the scintillator image reflected by the high-reflection mirror 600.

[0051] As Figures 1-7 shown, on the basis of the above embodiment, the first moving assembly 700 further includes a first rack 730 and a first gear 740. The first moving driving element is a first motor 720. The first rack 730 is connected to the workbench 500. The first motor 720 is connected to the first moving seat 710. The first gear 740 is connected to the output shaft of the first motor 720, and the first gear 740 meshes with the first rack 730.

[0052] In this embodiment, the first motor 720 can drive the first gear 740 to rotate, so as to drive the first gear 740 to roll on the first rack 730, and then realize the movement of the first moving seat 710 relative to the workbench 500, ensuring the movement accuracy of the first moving seat 710.

[0053] As Figures 1-7 shown, on the basis of the above embodiment, a second moving assembly 800 is further included. The second moving assembly 800 includes a second moving seat 810 and a second moving driving element. The second moving driving element can drive the second moving seat 810 to move relative to the first moving seat 710. The high-reflection mirror 600 is arranged on the second moving seat 810, and the moving direction of the second moving seat 810 is perpendicular to the moving direction of the first moving seat 710.

[0054] In this embodiment, the first moving driving element can drive the first moving seat 710 to move, and the second moving driving element can drive the second moving seat 810 to move, so as to combine and realize the movement of two degrees of freedom of the high-reflection mirror 600, and can adjust the position of the high-reflection mirror 600, which is convenient and has high precision.

[0055] As Figures 1-7 shown, on the basis of the above embodiment, the second moving assembly 800 further includes a second rack 830 and a second gear 840. The second moving driving element is a second motor 820. The second rack 830 is connected to the first moving seat 710. The second motor 820 is connected to the second moving seat 810. The second gear 840 is connected to the output shaft of the second motor 820, and the second gear 840 meshes with the second rack 830.

[0056] In this embodiment, the second motor 820 can drive the second gear 840 to rotate, thereby driving the second gear 840 to roll on the second rack 830, and further realizing the movement of the second moving seat 810 relative to the first moving seat 710, ensuring the movement accuracy of the second moving seat 810.

[0057] As Figures 1-7 shown, on the basis of the above embodiment, an angle adjustment assembly 900 is further included. The angle adjustment assembly 900 includes a cross frame 910 and a longitudinal frame 920. The cross frame 910 is connected to the second moving seat 810, the longitudinal frame 920 is connected to the cross frame 910, one end of the high-reflection mirror 600 contacts the cross frame 910, and the other end of the high-reflection mirror 600 contacts the longitudinal frame 920.

[0058] In this embodiment, the first moving driving element can drive the first moving seat 710 to move, the second moving driving element can drive the second moving seat 810 to move, and the angle adjustment assembly 900 can adjust the angle of the high-reflection mirror 600, thereby combining to realize the movement of three degrees of freedom of the high-reflection mirror 600, and can adjust the position and reflection angle of the high-reflection mirror 600, which is convenient and has high precision.

[0059] As Figures 1-7 shown, on the basis of the above embodiment, the angle adjustment assembly 900 further includes a first clamping block 930 and a second clamping block 940. The first clamping block 930 is movably connected to the cross frame 910, the second clamping block 940 is vertically movably connected to the longitudinal frame 920, the first clamping block 930 contacts one end of the high-reflection mirror 600, and the second clamping block 940 contacts the other end of the high-reflection mirror 600.

[0060] Specifically, the cross frame 910 is provided with a strip-shaped first adjustment hole, the first clamping block 930 is provided with a first slider, and the first slider can move along the length direction of the first adjustment hole so that the first clamping block 930 is movably connected to the cross frame 910.

[0061] Specifically, the longitudinal frame 920 is provided with a strip-shaped second adjustment hole, the second clamping block 940 is provided with a second slider, and the second slider can move along the length direction of the second adjustment hole so that the second clamping block 940 is vertically movably connected to the longitudinal frame 920.

[0062] In this embodiment, the first clamping block 930 contacts one end of the high-reflection mirror 600 and the second clamping block 940 contacts the other end of the high-reflection mirror 600. The first clamping block 930 and the second clamping block 940 form a clamping space, and the high-reflection mirror 600 is clamped from different positions by the first clamping block 930 and the second clamping block 940 to adjust the angle of the high-reflection mirror 600.

[0063] AsFigures 1-7 As shown in Figures 1-7 , a method for detecting the light output and afterglow of a scintillator includes the above-mentioned device for detecting the light output and afterglow of a scintillator, and further includes the steps:

[0064] S1: Open the workbench 500, place the scintillator on the light-transmitting part 110 of the detection table 100, align the ray tube 200 with the scintillator, adjust the highly reflective mirror 600 so that the scintillator can be projected by the highly reflective mirror 600 onto the detection camera 300, and close the workbench 500;

[0065] S2: Turn on the ray tube 200 to emit rays from the ray tube 200 towards the scintillator to make the scintillator emit light. The scintillator is projected by the highly reflective mirror 600 onto the detection camera 300 through the light-transmitting part 110, ensuring that the scintillator emits light stably;

[0066] S3: Turn off the ray tube 200. The brightness of the scintillator gradually dims over time. The detection camera 300 continuously takes pictures of the scintillator per unit time and generates real-time images. The calculation device 400 compares the real-time images with the sample images and calculates the absolute values of the light output and afterglow of the scintillator.

[0067] In this embodiment, by turning off the already turned-on ray tube 200 and using the detection camera 300 to continuously take pictures of the dimming scintillator per unit time and generate real-time images, and the calculation device 400 is used to compare the real-time images with the sample images and calculate, the absolute values of the light output and afterglow of the scintillator can be obtained, and the result is relatively accurate.

Claims

1. A scintillator light output and afterglow detection device, characterized in that, Comprising: A detection table provided with a light-transmitting part for carrying a scintillator; An X-ray tube that aligns with the light-transmitting part from one direction and is used to emit X-rays towards the scintillator; A detection camera that aligns with the light-transmitting part from another direction and is used to photograph the scintillator and generate a real-time image; A calculation device electrically connected to the detection camera. The calculation device stores a sample image and is used to compare the real-time image with the sample image and calculate the light output and the absolute value of afterglow of the scintillator.

2. The scintillator light output and afterglow detection device according to claim 1, characterized in that: It further includes a workbench which is a light-shielding member, and the detection table, the X-ray tube and the detection camera are all located inside the workbench.

3. The scintillator light output and afterglow detection device according to claim 2, characterized in that: It further includes a high-reflection mirror disposed inside the workbench. The detection table is located between the X-ray tube and the high-reflection mirror, and the X-ray tube and the high-reflection mirror are separated by the light-transmitting part. The high-reflection mirror is used to project the scintillator on the light-transmitting part onto the detection camera.

4. The scintillator light output and afterglow detection device according to claim 3, characterized in that: It further includes a first moving component which includes a first moving seat and a first moving driving element. The first moving driving element can drive the first moving seat to move relative to the workbench, and the high-reflection mirror is disposed on the first moving seat.

5. A scintillator light output and afterglow detection device according to claim 4, characterized in that: The first moving component further includes a first rack and a first gear. The first moving driving element is a first motor. The first rack is connected to the workbench, the first motor is connected to the first moving seat, the first gear is connected to the output shaft of the first motor, and the first gear meshes with the first rack.

6. The scintillator light output and afterglow detection device according to claim 4, characterized in that: It further includes a second moving component which includes a second moving seat and a second moving driving element. The second moving driving element can drive the second moving seat to move relative to the first moving seat. The high-reflection mirror is disposed on the second moving seat, and the moving direction of the second moving seat is perpendicular to the moving direction of the first moving seat.

7. The scintillator light output and afterglow detection device according to claim 6, wherein: The second moving component further includes a second rack and a second gear. The second moving driving element is a second motor. The second rack is connected to the first moving seat, the second motor is connected to the second moving seat, the second gear is connected to the output shaft of the second motor, and the second gear meshes with the second rack.

8. A scintillator light output and afterglow detection device according to claim 6, characterized in that: It further includes an angle adjustment component which includes a horizontal frame and a vertical frame. The horizontal frame is connected to the second moving seat, the vertical frame is connected to the horizontal frame, one end of the high-reflection mirror contacts the horizontal frame, and the other end of the high-reflection mirror contacts the vertical frame.

9. A scintillator light output and afterglow detection device according to claim 8, characterized in that: The angle adjustment component further includes a first clamping block and a second clamping block. The first clamping block is movably connected to the horizontal frame, the second clamping block is liftably connected to the vertical frame, the first clamping block contacts one end of the high-reflection mirror, and the second clamping block contacts the other end of the high-reflection mirror.

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