Detector

Abstract

The utility model discloses a detector which comprises a shell and a hollow closed structure formed by splicing an enclosure frame and a bent plate, the top end wall and the rear side wall of the enclosure frame are provided with openings and cover the bent plate, and the front side wall of the enclosure frame is provided with a through hole for X-rays generated by an X-ray instrument to penetrate through. A bracket for placing a sample is arranged on the inner wall of the front side wall of the enclosure frame at a position opposite to the through hole; the flexible screen is attached to the inner wall of the bent plate; the readout integrated circuit board is fixed on the inner wall of the bent plate and is electrically connected with the flexible screen; and the mainboard is fixed on the enclosure frame and is electrically connected with the read-out integrated circuit board. The detector is more flexible in design, has a wider sample diffraction angle range, not only can adapt to detection of samples in complex shapes, but also can capture diffraction data of the samples at multiple angles in one test, so that the time required for data collection can be shortened, the test efficiency can be improved, and the sample structure can be analyzed more comprehensively; the test precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to X -ray detection technical field more specifically, relate to a kind of detector. BACKGROUND

[0002] At present, sample (for example crystal, nanometer material etc.) detection often uses flat panel detector, flat panel detector can convert X-ray into electronic signal, generates X-ray image, to detect sample internal structure.

[0003] However, existing flat panel detector has the following shortcomings: for complex shape sample, flat panel detector is difficult to capture its diffraction data comprehensively, cannot be applied to complex shape sample detection, poor flexibility;In addition, if diffraction data under multiple angles are acquired to more comprehensively analyze the crystal structure of sample, sample or detector position needs to be adjusted multiple times to collect different angle data one by one, can influence test efficiency and accuracy.

[0004] Therefore, how to provide the detector with good flexibility and multi-angle detection capability is the problem that the present technical personnel urgently solves. UTILITY MODEL CONTENT

[0005] Therefore, the purpose of the utility model is to provide a kind of detector, the detector has good flexibility and multi-angle detection capability.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of detector, comprising:

[0008] Shell, hollow closed structure that is spliced by frame and curved plate, the top end wall and rear side wall of the frame are all provided with opening and cover the curved plate, the front side wall of the frame is provided with through hole for X-ray generated by X-ray instrument to pass through, the front side wall inner wall of the frame is provided with support for sample placement at the position opposite the through hole;

[0009] Flexible screen, attached to the inner wall of the curved plate, for receiving X-ray diffraction light generated by the sample and converting into analog signal;

[0010] Readout integrated circuit board, fixed on the inner wall of the curved plate and electrically connected to the flexible screen, for converting the analog signal into digital signal;

[0011] Mainboard, fixed on the frame and electrically connected to the readout integrated circuit board, for converting the digital signal into X-ray digital image and outputting to computer.

[0012] Preferably, a support is arranged on the inner wall of the bottom end wall of the frame, and a top end of the support is provided with an X-ray shield arranged at the same height as the sample.

[0013] Preferably, the support comprises a fixed plate and a supporting plate, the fixed plate is arranged on the inner wall of the front side wall of the frame, and the fixed plate is provided with a through hole communicating with the through hole, and the supporting plate is arranged adjacent to a bottom end of the through hole and is integrated with the fixed plate.

[0014] Preferably, the four corners of the fixed plate are detachably connected to the front side wall of the frame by screws.

[0015] Preferably, the outer wall of the front side wall of the frame is provided with a cover plate shielding the through hole, and a horizontal tube is arranged on a side of the cover plate away from the frame and is arranged to face the emission port of the X-ray instrument, and the horizontal tube communicates with the through hole.

[0016] Preferably, the centers of the horizontal tube, the through hole and the X-ray shield are located on the same horizontal line.

[0017] Preferably, light-shielding foam is attached around the cover plate.

[0018] Preferably, the inside of the bottom end wall of the frame is provided with a space for accommodating the main board, and the main board is electrically connected to the readout integrated circuit board arranged adjacent to the bottom end of the rear side wall of the frame.

[0019] Preferably, the main board is connected to an interface board, and the interface board penetrates the inside of the bottom end wall of the frame and is connected to a magnetic suction head assembly.

[0020] Preferably, a gate circuit board is further arranged on the left side wall or the right side wall of the frame and is electrically connected to the flexible screen to provide a bias voltage to the flexible screen.

[0021] The detector provided by the utility model has a flexible screen with good flexibility, which can be bent and attached to the inner wall of the curved plate. In use, X-rays generated by the X-ray instrument pass through the through hole and irradiate the sample, the flexible screen receives X-ray diffraction light generated by the sample and converts the X-ray diffraction light into an analog signal, the readout integrated circuit board acquires the analog signal and converts the analog signal into a digital signal, the main board acquires the digital signal and converts the digital signal into an X-ray digital image, and then the X-ray digital image is output to a computer, so that the sample structure detection is completed. It should be particularly pointed out that the flexible screen is bent and attached to the curved plate, which is more flexible in design and has a wider sample diffraction angle range. The flexible screen can not only adapt to complex sample detection, but also can capture diffraction data of the sample at multiple angles in one test, so that the time required for data collection is reduced, the test efficiency is improved, the sample structure is more comprehensively analyzed, and the test precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described below are only part of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0023] Figure 1 The left cross-sectional view of the detector provided by the present application;

[0024] Figure 2 The installation schematic view of the flexible screen and the readout integrated circuit board provided by the present application;

[0025] Figure 3 The internal structure schematic view of the shell provided by the present application;

[0026] Figure 4 The installation schematic view of the cover plate and the horizontal pipe provided by the present application;

[0027] Figure 5 The installation schematic view of the mainboard provided by the present application.

[0028] Reference signs:

[0029] 1-shell; 1-1-enclosure; 1-11-left frame plate; 1-12-right frame plate; 1-13-front frame plate; 1-14-bottom frame plate; 1-2-curved plate;

[0030] 2-through hole; 3-bracket; 3-1-fixing plate; 3-2-support plate; 4-flexible screen; 5-readout integrated circuit board; 6-mainboard; 7-strut; 8-X-ray shielding element; 9-cover plate; 10-horizontal pipe; 11-interface board; 12-magnetic suction head assembly; 13-gate circuit board; 14-sample. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] The core of the present application is to provide a detector, which has good flexibility and multi-angle detection capability.

[0033] It should be noted that in the present embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right" and the like are based on the directions or positional relationships shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] Referring to Figure 1 , the present application provides a specific embodiment of a detector, which comprises a shell 1, a flexible screen 4, a readout integrated circuit board 5 and a main board 6.

[0035] The shell 1 is a hollow closed structure composed of a surrounding frame 1-1 and a curved plate 1-2, the top end wall and the rear side wall of the surrounding frame 1-1 each have an opening and cover the curved plate 1-2, the front side wall of the surrounding frame 1-1 is provided with a through hole 2 for the X-rays generated by an X-ray instrument to pass through, and the inner wall of the front side wall of the surrounding frame 1-1 is provided with a support 3 for placing a sample 14 at a position opposite to the through hole 2.

[0036] The flexible screen 4 is attached to the inner wall of the curved plate 1-2 and is used to receive the X-ray diffraction light generated by the sample 14 and convert it into an analog electrical signal.

[0037] The readout integrated circuit board 5 is fixed to the inner wall of the curved plate 1-2 and is electrically connected to the flexible screen 4, and is used to convert the analog electrical signal into a digital signal.

[0038] The main board 6 is fixed to the surrounding frame 1-1 and is electrically connected to the readout integrated circuit board 5, and is used to convert the digital signal into an X-ray digital image and output it to a computer.

[0039] It should be noted that the conventional surrounding frame 1-1 is in the shape of a rectangular prism with an opening at the top end, as Figure 3 indicated, the surrounding frame 1-1 of the present application is in the shape of a frame structure with openings at the top end and the rear side wall, i.e. the frame structure is composed of a left frame plate 1-11, a right frame plate 1-12, a front frame plate 1-13 and a bottom frame plate 1-14, the left frame plate 1-11 and the right frame plate 1-12 are oppositely arranged on the bottom frame plate 1-14 in the left-right direction, the front frame plate 1-13 is arranged on the bottom frame plate 1-14 and connected between the front sides of the left frame plate 1-11 and the right frame plate 1-12, thereby forming a frame structure with openings at the top end and the rear side wall. The curved plate 1-2 has a specific curvature, and the curved plate 1-2 is arranged on the top end and the rear side wall of the frame to form a hollow closed structure of the shell 1. Preferably, the shell 1 is a detachable structure, i.e. the curved plate 1-2, the left frame plate 1-11, the right frame plate 1-12, the front frame plate 1-13 and the bottom frame plate 1-14 are detachably combined together by screws, which facilitates the disassembly and assembly of the components in the shell 1.

[0040] The flexible screen 4 has good flexibility and light weight, so that the flexible screen 4 can be bent and attached to the inner wall of the curved plate 1-2. Preferably, the flexible screen 4 is attached to the inner wall of the curved plate 1-2 by a special surface adhesive, so as to ensure that the flexible screen 4 is firmly installed while ensuring that the flexible screen 4 is not damaged. In addition, the flexible screen 4 can be a TFT screen, which is a kind of LCD screen that uses thin film transistor technology to improve image quality. It is equipped with a micro transistor at each pixel point, which can more accurately control the brightness and color of each pixel, thereby providing clearer and brighter images.

[0041] The front frame plate 1-13 of the frame 1-1 is provided with a through hole 2 for facing the emission port of the X-ray instrument and facing the flexible screen 4. A support 3 is arranged at the position of the front frame plate 1-13 facing the through hole 2. In this way, the sample 14 placed on the support 3 can be irradiated by the X-rays generated by the X-ray instrument, and the X-ray diffraction light generated by the sample 14 can be scattered onto the flexible screen 4, so that the flexible screen 4 can receive the diffraction data of the sample 14.

[0042] As shown in Figure 2 The inner wall of the curved plate 1-2 is also provided with a readout integrated circuit board 5, which is located below the flexible screen 4 and can avoid interfering with the reception of X-ray diffraction light by the flexible screen 4. In addition, the readout integrated circuit board 5 is connected to the flexible screen 4 by wires, so that the flexible screen 4 can transmit analog signals to the readout integrated circuit board 5, and the readout integrated circuit board 5 can convert the analog signals into digital signals for subsequent transmission to the main board 6 for image processing.

[0043] Any frame plate of the frame 1-1 can be provided with a main board 6, which is connected to the readout integrated circuit board 5 by wires, and is also connected to a computer by wires to output the X-ray digital image to the computer, so that the staff can view the detection image of the structure of the sample 14.

[0044] In summary, in the test, the X-rays generated by the X-ray instrument pass through the through hole 2 and irradiate the sample 14, the flexible screen 4 receives the X-ray diffraction light generated by the sample 14 and converts it into an analog electrical signal, the readout integrated circuit board 5 obtains the analog signal and converts it into a digital signal, the main board 6 obtains the digital signal and converts it into an X-ray digital image, and then outputs it to the computer, thereby completing the structure detection of the sample 14.

[0045] It should be particularly pointed out that the flexible screen 4 is bent and attached to the curved plate 1-2, which is more flexible in design and covers a wider range of sample 14 diffraction angle, which can not only adapt to the detection of complex shape sample 14, but also capture the diffraction data of the sample 14 at multiple angles in one test, reduce the time required for data collection, improve test efficiency, and more comprehensively analyze the structure of the sample 14, and improve the test accuracy.

[0046] To further optimize the test accuracy, on the basis of the above embodiment, please refer to Figure 1 and Figure 3 The inner wall of the bottom end wall of the frame 1-1 is provided with a support 7, and the top end of the support 7 is provided with an X-ray shielding piece 8 arranged at the same height as the sample 14 for absorbing the X-rays generated by the X-ray instrument.

[0047] It can be understood that the flexible screen 4 needs to receive the X-ray diffraction light generated by the sample 14, and the X-ray that passes through the sample bottle horizontally is generated by the X-ray instrument. The horizontal X-ray is not absorbed or scattered by the internal atomic structure of the sample 14, and is too bright. If it is irradiated on the flexible screen 4, it will affect the detection image quality. Therefore, the X-ray shielding piece 8 arranged in the above structure can absorb the X-rays generated by the X-ray instrument, thereby improving the test accuracy. Among them, the X-ray shielding piece 8 can be made of a tungsten carbide material shielding piece, of course, it can also be made of other shielding radiation materials shielding piece, and is not unique.

[0048] Preferably, the support 7 and the bottom end wall of the frame 1-1 are detachably connected, specifically, the bottom end of the support 7 is fixed on the bottom frame plate 1-14 of the frame 1-1 by screws, so that the support 7 can be conveniently disassembled, so that the height of the X-ray shielding piece 8 can be adjusted by replacing supports 7 of different heights, and the sample 14 can be more flexibly installed.

[0049] Considering the specific arrangement of the bracket 3, on the basis of the above embodiment, please refer to Figure 3 The bracket 3 includes a fixed plate 3-1 and a supporting plate 3-2, the fixed plate 3-1 is arranged on the inner wall of the front side wall of the frame 1-1, and the fixed plate 3-1 is provided with a through hole communicated with the through hole 2, and the supporting plate 3-2 is adjacent to the bottom end of the through hole and is integrated with the fixed plate 3-1.

[0050] Specifically, the fixed plate 3-1 is installed on the inner wall of the front frame plate 1-13 of the enclosure 1-1, and a through hole is arranged on the fixed plate 3-1 to communicate with the through hole 2, so that the X-rays generated by the X-ray instrument can pass through the fixed plate 3-1 to irradiate into the shell 1, and the fixed plate 3-1 is connected with the supporting plate 3-2, and the supporting plate 3-2 is arranged adjacent to the bottom end of the through hole, so that the sample 14 placed on the supporting plate 3-2 is arranged opposite to the through hole, and the X-rays can be ensured to irradiate on the sample 14. Preferably, the supporting plate 3-2 is concave downward, and the concave groove is used for placing the sample 14, which can ensure the stable installation of the sample 14 and is beneficial to improve the test accuracy.

[0051] For the convenience of disassembling the sample 14, on the basis of the above embodiment, the four corners of the fixed plate 3-1 are detachably connected with the front side wall of the enclosure 1-1 by screws. Since the fixed plate 3-1 is integrated with the supporting plate 3-2, and the sample 14 is placed on the supporting plate 3-2, the sample 14 can be disassembled by disassembling the fixed plate 3-1, thereby facilitating the disassembly of the sample 14, and the installation height of the sample 14 can be adjusted by disassembling the fixed plate 3-1. It should be noted that in the height direction, the size of the through hole 2 is greater than the size of the through hole, so that even if the height of the fixed plate 3-1 (that is, the height of the sample 14) is adjusted, the through hole can be ensured to communicate with the through hole 2.

[0052] It can be understood that the X-rays have strong penetration ability. If the shell 1 is not sealed and transmits light, the X-rays may leak from the gap, resulting in a decrease in the reception of the sample 14 diffraction data by the flexible screen 4, and thus the reliability of the detection result is poor and the test accuracy is reduced.

[0053] To avoid the above phenomenon, on the basis of the above embodiment, please refer to Figure 4 The outer wall of the front side wall of the enclosure 1-1 is provided with a cover plate 9 for shielding the through hole 2, and the side of the cover plate 9 away from the enclosure 1-1 is provided with a horizontal tube 10 for being arranged opposite to the emission port of the X-ray instrument, and the horizontal tube 10 communicates with the through hole 2. In this way, while achieving the irradiation of the X-rays on the sample 14, the leakage of the X-rays out of the shell 1 through the through hole 2 can be avoided, thereby improving the test accuracy.

[0054] It should be noted that the above cover plate 9 can be made of metal materials such as aluminum, titanium, magnesium, etc., and can be subjected to black anodic oxidation treatment to achieve the purpose of light shielding. Of course, the cover plate 9 can also be made of other metal materials, such as zinc, and can be subjected to black zinc electroplating process.

[0055] Further, the cover plate 9 is provided with light shielding foam around the periphery, which can further better shield light and prevent the X-rays from leaking out of the shell 1 from the gap of the cover plate 9, thereby further improving the test accuracy.

[0056] On the basis of the above embodiment, please refer to Figure 1, the center positions of the horizontal tube 10, the perforation and the X-ray shielding member 8 are located on the same horizontal line, which better ensures that the X-rays generated by the X-ray instrument are absorbed by the X-ray shielding member 8 after irradiating the sample 14, so as to effectively ensure the image quality detected by the flexible screen 4.

[0057] In view of the specific electrical connection between the readout integrated circuit board 5 and the mainboard 6, on the basis of the above embodiment, please refer to Figure 1 The inside of the bottom end wall of the frame 1-1 is provided with a space for accommodating the mainboard 6, and the mainboard 6 is electrically connected to the readout integrated circuit board 5 arranged adjacent to the bottom end of the rear wall of the frame 1-1.

[0058] Specifically, the inside of the bottom frame plate 1-14 of the frame 1-1 has a space, and the mainboard 6 is arranged in the space, so that the mainboard 6 can be isolated from the outside world and work normally without being affected by external factors. And the readout integrated circuit board 5 is arranged on the inner wall of the rear frame plate of the frame 1-1 and adjacent to the bottom end, which facilitates the arrangement of wires between the readout integrated circuit board 5 and the mainboard 6 and simplifies the wiring.

[0059] In view of the specific electrical connection between the mainboard 6 and the computer, on the basis of the above embodiment, please refer to Figure 5 The mainboard 6 is connected to the interface plate 11, and the interface plate 11 penetrates the inside of the bottom end wall of the frame 1-1 and is connected to the magnetic suction head assembly 12.

[0060] It can be understood that since the mainboard 6 is arranged in the space in the bottom frame plate 1-14, the mainboard 6 needs to be connected to the interface plate 11 penetrating the bottom frame plate 1-14, and the interface plate 11 is provided with the magnetic suction head assembly 12, which can be connected to the computer through wires to process the digital image signal to obtain the X-ray digital image.

[0061] In order to control the switch and signal processing of the detector, on the basis of the above embodiment, please refer to Figure 3 The application also includes a gate circuit board 13, which is arranged on the left or right side wall of the frame 1-1 and electrically connected to the flexible screen 4, for providing a bias voltage to the flexible screen 4.

[0062] Specifically, the gate circuit board 13 is arranged on the left frame plate 1-11 or the right frame plate 1-12 of the frame 1-1, which is more convenient for electrically connecting the flexible screen 4 than being arranged on the front frame plate 1-13, and avoids the interference of the wires between the gate circuit board 13 and the flexible screen 4 with the reception of the X-ray diffraction light by the flexible screen 4, and compared with being arranged on the bottom frame plate 1-14, it can avoid occupying the setting space of the mainboard 6. In addition, the gate circuit board 13 is externally connected to a bias voltage source and connected to the flexible screen 4 through wires to provide a bias voltage to the flexible screen 4 and control the function of the flexible screen 4 to the signal switch of the readout integrated circuit board 5.

[0063] The various embodiments are described in the specification by way of progression, each building on the last to facilitate ease of understanding. The same or similar reference numerals are used in the drawings and description to refer to the same or like parts, components and operations.

[0064] The above has carried out the detailed introduction to the detector provided by the utility model. The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above embodiment is only used for helping understanding the method and core idea of the utility model. It should be pointed out that, for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A probe, characterized in that The application relates to a portable X-ray diffraction device, which comprises the following parts: a shell (1) which is a hollow closed structure composed of a frame (1-1) and a curved plate (1-2), the top wall and the back wall of the frame (1-1) are provided with openings and cover the curved plate (1-2), the front wall of the frame (1-1) is provided with a through hole (2) for X-rays generated by an X-ray instrument to pass through, and a support (3) for placing a sample (14) is arranged on the inner wall of the front wall of the frame (1-1) and is opposite the through hole (2); a flexible screen (4) which is attached to the inner wall of the curved plate (1-2) and is used for receiving X-ray diffraction light generated by the sample (14) and converting the X-ray diffraction light into an analog electric signal; a readout integrated circuit board (5) which is fixed to the inner wall of the curved plate (1-2) and is electrically connected to the flexible screen (4) and is used for converting the analog electric signal into a digital signal; a main board (6) which is fixed to the frame (1-1) and is electrically connected to the readout integrated circuit board (5) and is used for converting the digital signal into an X-ray digital image and outputting the X-ray digital image to a computer.

2. The probe of claim 1, wherein, A support column (7) is arranged on the inner wall of the bottom wall of the frame (1-1), and the top end of the support column (7) is provided with an X-ray shielding element (8) which is arranged at the same height as the sample (14).

3. The probe of claim 2, wherein, The support (3) comprises a fixed plate (3-1) and a supporting plate (3-2), the fixed plate (3-1) is arranged on the inner wall of the front wall of the frame (1-1), the fixed plate (3-1) is provided with a through hole which is communicated with the through hole (2), and the supporting plate (3-2) is arranged at the bottom end of the through hole and is integrated with the fixed plate (3-1).

4. The probe of claim 3, wherein, The four corners of the fixed plate (3-1) are detachably connected to the front wall of the frame (1-1) through screws.

5. The probe of claim 3, wherein, The outer wall of the front wall of the frame (1-1) is provided with a cover plate (9) which covers the through hole (2), and the side of the cover plate (9) which is away from the frame (1-1) is provided with a horizontal tube (10) which is arranged opposite the emitting port of the X-ray instrument and is communicated with the through hole (2).

6. The probe of claim 5, wherein, The centers of the horizontal tube (10), the through hole and the X-ray shielding element (8) are located on the same horizontal line.

7. The probe of claim 5, wherein, Light-blocking bubble cotton is attached to the periphery of the cover plate (9).

8. The probe of claim 1, wherein, The bottom wall of the frame (1-1) is internally provided with a space for accommodating the main board (6), and the main board (6) is electrically connected to the readout integrated circuit board (5) which is arranged adjacent to the bottom end of the back wall of the frame (1-1).

9. The probe of claim 8, wherein, The main board (6) is connected to an interface board (11) which penetrates the inside of the bottom wall of the frame (1-1) and is connected to a magnetic suction head assembly (12).

10. The probe of any one of claims 1 to 9, characterized in that A gate control circuit board (13) is further arranged on the left wall or the right wall of the frame (1-1) and is electrically connected to the flexible screen (4) and is used for providing a bias voltage to the flexible screen (4).

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