Variable-curvature X-ray detector structure

Abstract

The invention provides a variable-curvature X-ray detector structure. The variable-curvature X-ray detector structure comprises a flexible X-ray detection panel with two flexible surfaces, a rigid limiting block group arranged on the flexible surfaces, and an elastic stretchable compression layer for filling and wrapping rigid limiting blocks and the flexible X-ray detection panel. According to the invention, the flexible X-ray detection panel is adopted to replace a complex external supporting structure to realize the variable-curvature X-ray detector, and the portability and the application efficiency of the detector are improved while the curvature is variable; meanwhile, the rigid limiting block group is matched with the flexible X-ray detection panel to control the minimum bending radius, so that puncture caused by excessive bending of the flexible X-ray detection panel is prevented, and the service life of the X-ray detector is prolonged; in addition, the flexible X-ray detection panels with two flexible surfaces realize double-sided bending, so that the detection efficiency in the situations of dense pipelines and narrow spaces is improved; finally, the elastic stretchable compression layer prevents the flexible panel from stretching limit bending or surface wrinkling from affecting imaging, and the imaging effect of the X-ray detector is improved.

Description

Technical Field

[0001] This invention belongs to the field of X-ray detection technology, and in particular relates to a variable curvature X-ray detector structure. Background Technology

[0002] A variable-curvature detector (VCD) is a sensor array that can dynamically change its curvature during use to adapt to different imaging or detection needs. VCDs are widely used in aviation, aerospace, medical imaging, robot vision, and portable imaging devices. Traditional VCDs are divided into mechanically-hinged VCDs (MH-VCDs) and fully-flexible VCDs (FF-VCDs).

[0003] Mechanically hinged adjustable curvature detectors (MH-VCDs) rely on complex hinges and external support structures (ESS) to ensure variable curvature. These ESS typically consist of multi-joint hinges (MJH), slide rails (SR), and locking mechanisms (LM). Because MJH and SR require precision CNC machining and ultra-precision assembly (UPA), the manufacturing cost of mechanically hinged adjustable curvature detectors is high. Furthermore, the large number of ESS parts and long assembly chain, requiring multiple adjustments, also leads to high assembly costs. Additionally, MJH suffers from wear and fatigue, necessitating regular lubrication and replacement, resulting in high maintenance requirements. Moreover, the overall weight of mechanically hinged adjustable curvature detectors typically exceeds 2kg, with complex structures, large dimensions, and heavy weight, making them unsuitable for portability. Moreover, mechanically hinged adjustable curvature detectors generally only allow bending on one side, limiting the direction of curvature adjustment and resulting in low practical application efficiency.

[0004] The fully-flexible adjustable curvature detector (FF-VCD) uses a fully flexible panel (FFP), which achieves curvature changes through the material's own elasticity, eliminating the need for hinges. However, FFP faces the challenge of precisely controlling the minimum bending radius (MBR) during repeated bending. When the MBR is too small, it can lead to stress concentration within the flexible substrate, fatigue fracture of metal wiring, and peeling off of active devices, significantly shortening the FFP's bending life (BL) and reducing the VCD's reliability.

[0005] Therefore, there is an urgent need for a new type of adjustable curvature detector architecture that can not only get rid of the high processing and assembly costs and maintenance burden caused by complex hinges and external support structures, but also precisely control the minimum bending radius, extend the product's service life, achieve double-sided bending and lightweighting, thereby improving the efficiency and reliability of practical applications.

[0006] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating the understanding of those skilled in the art. It should not be assumed that the above technical solutions are known to those skilled in the art simply because these solutions have been described in the background section of this application. Summary of the Invention

[0007] In view of the shortcomings of the prior art, the purpose of this invention is to provide a variable curvature X-ray detector structure to solve the problems of low efficiency and poor reliability in the practical application of adjustable curvature X-ray detectors in the prior art.

[0008] To achieve the above objectives, the present invention provides a variable curvature X-ray detector structure, the X-ray detector structure comprising: a flexible X-ray detection panel, a rigid limiting block assembly, and an elastic stretchable and compressible layer;

[0009] The flexible X-ray detection panel includes two opposing flexible surfaces capable of detecting X-rays. Each flexible surface has a rigid limiting block group at its edge. Each rigid limiting block group includes two or more rigid limiting blocks arranged along the bendable direction of the flexible X-ray detection panel at its edge. There is a preset distance between adjacent rigid limiting blocks to limit the minimum bending radius of the flexible X-ray detection panel. One surface of each rigid limiting block is fixedly connected to the edge of the corresponding flexible surface of the flexible X-ray detection panel.

[0010] The elastic, stretchable, and compressible layer fills the gap between the rigid limiting blocks and wraps the exposed surfaces of the rigid limiting blocks and the flexible X-ray detection panel.

[0011] Optionally, the flexible X-ray detection panel includes an X-ray conversion layer, a photoelectric conversion layer, and a mechanical support layer; the mechanical support layer includes two opposing support surfaces, the photoelectric conversion layer covers the two support surfaces, and the X-ray conversion layer covers the surface of the photoelectric conversion layer; one surface of each rigid limiting block is fixedly connected to the edge surface of the corresponding mechanical support layer of the flexible X-ray detection panel.

[0012] Optionally, the X-ray conversion layer is a flexible scintillator or a quantum dot scintillator film, used to convert detected X-rays into visible light.

[0013] Optionally, the photoelectric conversion layer includes a flexible substrate, a photodiode, and a thin-film transistor switch array. The flexible substrate is fixedly connected to the mechanical support layer, and the photodiode and the thin-film transistor switch array are fabricated on the flexible substrate. The photodiode is used to convert the visible light obtained by the X-ray conversion layer into charge and store it, and the thin-film transistor switch array is used to convert the charge stored by the photodiode into pixel-level electrical signals.

[0014] Optionally, the flexible substrate is at least one of PI, PEN, or PET.

[0015] Optionally, the mechanical support layer is carbon fiber, polymer film, ultrathin glass, or metal foil.

[0016] Optionally, the flexible X-ray detection panel includes an X-ray direct conversion semiconductor and a mechanical support layer, the mechanical support layer including two opposing support surfaces, and the X-ray direct conversion semiconductor covering the two support surfaces.

[0017] Optionally, the two flexible surfaces of the flexible X-ray detection panel are fixedly connected to the corresponding rigid limiting block group by adhesive bonding; or, the two flexible surfaces of the flexible X-ray detection panel and the corresponding rigid limiting block group are integrally formed by a composite process.

[0018] Optionally, each of the rigid limiting blocks is made of metal.

[0019] Optionally, the material of the elastic stretchable compression layer is at least one of TPEE, metal-polymer elastic conductor, gel material, carbon spring, EPDM, silicone rubber, nitrile rubber, or elastic 3D printing resin.

[0020] As described above, the variable curvature X-ray detector structure of the present invention has the following beneficial effects:

[0021] This invention achieves a variable curvature X-ray detector by replacing complex external support structures such as hinges with a fully flexible flexible X-ray detection panel. This ensures the required variable curvature while reducing the number of product components, lowering processing costs, assembly costs, and maintenance requirements. It also reduces the size and weight, improving the portability and practical application efficiency of the detector.

[0022] This invention controls the minimum bending radius by combining a rigid limiting block assembly with a flexible X-ray detection panel, preventing excessive bending of the flexible X-ray detection panel that could lead to puncture, thus effectively protecting the flexible X-ray detection panel and improving the service life of the X-ray detector.

[0023] This invention utilizes a flexible X-ray detection panel with two flexible surfaces to achieve a double-sided bendable X-ray detector, resulting in higher detection efficiency in dense pipeline scenarios and confined space scenarios. Furthermore, it can be mounted on an expansion module for automated detection by an industrial robot.

[0024] This invention utilizes an elastic, stretchable, and compressible layer to wrap and fill the rigid limiting block and the flexible X-ray detection panel, avoiding the extreme bending caused by the surface stretching and elongation of the flexible panel and the surface compression wrinkles that affect the imaging surface, thereby improving the imaging effect of the X-ray detector. Attached Figure Description

[0025] Figure 1 The diagram shown is a front view of the variable curvature X-ray detector structure according to Embodiment 1 of the present invention.

[0026] Figure 2 The diagram shown is a cross-sectional view of the variable curvature X-ray detector structure of Embodiment 1 of the present invention, which is bent in one direction.

[0027] Figure 3 The diagram shown is a cross-sectional view of the variable curvature X-ray detector structure of Embodiment 1 of the present invention, showing the structure bent in another direction.

[0028] Figure 4 The diagram shown is a partially enlarged cross-sectional view of the variable curvature X-ray detector structure of Embodiment 1 of the present invention, which is bent in one direction.

[0029] Explanation of icon numbers

[0030] 10. Flexible X-ray detection panel; 11. Flexible surface; 12. Imaging area;

[0031] 20. Rigid limit block assembly; 21. Rigid limit block;

[0032] 30. Elastic stretchable compression layer; r, bendable direction. Detailed Implementation

[0033] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0034] In the detailed description of embodiments of the present invention, for ease of explanation, the schematic diagrams illustrating the device structure may be partially enlarged without adhering to the general scale, and the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. Furthermore, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0035] For ease of description, spatial relation terms such as “below,” “under,” “lower than,” “below,” “above,” and “upper” may be used herein to describe the relationship between one element or feature shown in the accompanying drawings and other elements or features. It will be understood that these spatial relation terms are intended to include directions other than those depicted in the accompanying drawings for devices in use or operation.

[0036] In the context of this application, the structure described above the first feature may include embodiments in which the first and second features are in direct contact, or embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact.

[0037] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. The quantity range given in the present invention includes the two boundary values ​​of the quantity range by default unless otherwise specified.

[0038] Adjustable curvature detectors (VCDs), as a type of sensor array, can dynamically adjust their curvature during use to meet different imaging or detection needs. These detectors are widely used in aviation, aerospace, medical imaging, robotic vision, and portable imaging devices. Traditional adjustable curvature detectors can be divided into two categories: mechanically hinged (MH-VCD) and fully flexible (FF-VCD). Mechanically hinged adjustable curvature detectors (MH-VCDs) rely on complex hinges and external support structures to achieve variable curvature. These external support structures typically consist of multi-joint hinges, slide rails, and locking mechanisms. The high manufacturing cost of mechanically hinged adjustable curvature detectors stems from the need for precision CNC machining and ultra-precision assembly (UPA) of multi-joint hinges and slide rails. Furthermore, the numerous parts and long assembly chain of the external support structure, requiring multiple adjustments, also contribute to relatively high assembly costs. Additionally, the wear and fatigue of multi-joint hinges necessitate regular lubrication and replacement, increasing the detector's maintenance requirements. Moreover, the complex structure, large size, and heavy weight of mechanically hinged adjustable curvature detectors make them unsuitable for portability. Moreover, they typically only allow for single-sided bending, limiting the direction of curvature adjustment and resulting in low efficiency in practical applications. Fully flexible adjustable curvature detectors (FF-VCD) utilize fully flexible panels (FFP), leveraging the material's inherent elasticity to achieve curvature changes without hinges. However, fully flexible panels face the challenge of precisely controlling the minimum bending radius (MBR) during repeated bending. When the minimum bending radius is too small, it can lead to problems such as stress concentration inside the flexible substrate, fatigue fracture of metal wiring, and peeling of active devices, thereby significantly shortening the bending life of the fully flexible panel and reducing the reliability of the adjustable curvature detector. To solve the above problems, this invention provides the following solution:

[0039] Example 1:

[0040] This embodiment provides a variable curvature X-ray detector structure, such as... Figures 1-4 As shown, where Figure 1 This is a front view of the X-ray detector structure. Figure 2 and Figure 3 The X-ray detector structure bends in two directions along... Figure 1 The cross-sectional diagram obtained from section AA in the diagram. Figure 4 The X-ray detector structure, shown in the enlarged view of the cross-section, includes: a flexible X-ray detection panel 10, a rigid limiting block group 20, and an elastic stretchable and compressible layer 30.

[0041] The flexible X-ray detection panel 10 includes two opposing flexible surfaces 11 capable of detecting X-rays. Each flexible surface 11 has a rigid limiting block group 20 at its edge. Each rigid limiting block group 20 includes two or more rigid limiting blocks 21 arranged along the bendable direction r of the flexible X-ray detection panel 10 at its edge. There is a preset distance between adjacent rigid limiting blocks 21 to limit the minimum bending radius of the flexible X-ray detection panel 10. One surface of each rigid limiting block 21 is fixedly connected to the edge of the corresponding flexible surface 11 of the flexible X-ray detection panel 10.

[0042] The elastic, stretchable, and compressible layer 30 fills the gap between the rigid limiting blocks 21 and wraps the exposed surfaces of the rigid limiting blocks 21 and the flexible X-ray detection panel 10.

[0043] This invention employs a fully flexible X-ray detection panel 10 to replace complex external support structures such as hinges, thereby achieving an X-ray detector with variable curvature. While ensuring variable detector curvature, it reduces the number of product components, lowers processing and assembly costs and maintenance requirements, and also reduces detector size and weight, improving portability and practical application efficiency. Simultaneously, through the synergistic cooperation of the rigid limiting block assembly 20 and the flexible X-ray detection panel 10, a novel stacking method and a novel self-limiting structure are obtained. This allows for control of the minimum bending radius of the flexible X-ray detection panel 10 by designing the dimensions and spacing of the rigid limiting blocks 21, preventing puncture due to excessive bending, thus effectively protecting the flexible X-ray detection panel 10 and improving the X-ray detector's lifespan. Furthermore, the flexible X-ray detection panel 10, with two flexible surfaces 11, is used... Figures 2-3 As shown, a double-sided bendable X-ray detector has been realized, which has higher detection efficiency in dense pipeline scenarios and confined space scenarios, and can be mounted on an expansion module to achieve automatic detection with the help of industrial robots. Finally, the rigid limiting block 21 and the flexible X-ray detection panel 10 are wrapped and filled with an elastic stretchable compression layer 30, which avoids the extreme bending caused by the stretching of the flexible panel surface and the influence of surface compression wrinkles on the imaging surface, thereby improving the imaging effect of the X-ray detector.

[0044] Specifically, the "flexible surface" in "the edge of the flexible surface 11 of the flexible X-ray detection panel 10" where the rigid limiting block 21 is located refers to two opposing surfaces of the flexible X-ray detection panel 10 as a whole. The specific surface of the flexible X-ray detection panel 10 to which the rigid limiting block 12 is fixedly connected can be set according to the requirements.

[0045] Specifically, by setting the rigid limiting block 21 at the edge of the flexible surface 11 of the flexible X-ray detection panel 10, the present invention can avoid the rigid limiting block 21 from blocking the imaging area 12 on the flexible X-ray detection panel 10, thus avoiding the impact on the imaging effect of X-rays on the flexible X-ray detection panel 10 and ensuring the imaging effect of the detector.

[0046] Specifically, in this paper, the "flexible direction r" of the flexible X-ray detection panel 10 refers to the direction around its central axis when the flexible X-ray detection panel 10 is bent, such as... Figures 2-4 The direction of the arrow 'r' in the figure is the "flexible direction r" of the flexible X-ray detection panel 10.

[0047] In one embodiment, the flexible X-ray detection panel 10 includes an X-ray conversion layer, a photoelectric conversion layer, and a mechanical support layer; the mechanical support layer includes two opposing support surfaces, the photoelectric conversion layer covers the two support surfaces, and the X-ray conversion layer covers the surface of the photoelectric conversion layer; one surface of each rigid limiting block 21 is fixedly connected to the edge surface of the corresponding mechanical support layer of the flexible X-ray detection panel 10.

[0048] Preferably, by fixing the rigid limiting block 21 to the edge surface of the mechanical support layer of the flexible X-ray detection panel 10, the fixing process is simpler and the connection is more reliable, without affecting the normal operation of the X-ray conversion layer and the photoelectric conversion layer. Specifically, the rigid limiting block 21 can also be designed to be fixedly connected to the edge surface of other parts of the flexible X-ray detection panel 10 according to actual needs, so that the rigid limiting block 21 does not affect the normal imaging of the flexible X-ray detection panel 10, all of which are within the protection scope of this invention.

[0049] In one embodiment, the X-ray conversion layer is a flexible scintillator or a quantum dot scintillator film, used to convert detected X-rays into visible light. Specifically, the X-ray conversion layer may also employ other structures or materials capable of converting X-rays into visible light, all of which are within the scope of this invention.

[0050] In one embodiment, the photoelectric conversion layer includes a flexible substrate, a photodiode, and a thin-film transistor (TFT) switch array. The flexible substrate is fixedly connected to the mechanical support layer, and the photodiode and the TFT switch array are fabricated on the flexible substrate. The photodiode converts visible light obtained from the X-ray conversion layer into electrical charge and stores it. The TFT switch array converts the charge stored in the photodiode into pixel-level electrical signals. Specifically, the photoelectric conversion layer can also employ other suitable structural designs to achieve the functional requirement of converting visible light into electrical signals, all of which are within the scope of protection of this invention.

[0051] In one embodiment, the flexible substrate is at least one of PI (polyimide), PEN (polyethylene naphthalate), or PET (polyethylene terephthalate). Specifically, PI is more temperature resistant and can be used for vapor-deposited CsI or GOS scintillators; PET or PEN are low-cost and optically flat, making them suitable for coated scintillators.

[0052] Specifically, the flexible substrate can also be made of other suitable flexible materials, all of which are within the scope of protection of this invention.

[0053] In one embodiment, the mechanical support layer is carbon fiber, polymer film, ultrathin glass, or metal foil. Specifically, the mechanical support layer can also be made of other materials with supporting effects, all of which are within the scope of this invention.

[0054] In one embodiment, the two flexible surfaces 11 of the flexible X-ray detection panel 10 are fixedly connected to the corresponding rigid limiting block group 20 by adhesive bonding.

[0055] In one embodiment, the two flexible surfaces 11 of the flexible X-ray detection panel 10 and the corresponding rigid limiting block assembly 20 are integrally formed through a composite process. By integrally forming the flexible surfaces 11 of the flexible X-ray detection panel 10 with the rigid limiting block assembly 20, this invention can further improve the connection reliability between the rigid limiting block assembly 20 and the flexible X-ray detection panel 10, thereby increasing the detector's service life.

[0056] In one embodiment, the two flexible surfaces 11 of the flexible X-ray detection panel 10 are made of the same material as the rigid limiting block 21.

[0057] In one embodiment, the two flexible surfaces 11 of the flexible X-ray detection panel 10 are made of a different material than the rigid limiting block 21.

[0058] Specifically, the two flexible surfaces 11 of the flexible X-ray detection panel 10 and the rigid limiting block 21 can be made of the same or different materials through an integral molding process.

[0059] Specifically, the two flexible surfaces 11 of the flexible X-ray detection panel 10 and the corresponding rigid limiting block group 20 can also be fixedly connected by other suitable methods, as long as the rigid limiting block group 20 can limit the minimum bending radius of the flexible X-ray detection panel 10, all of which are within the protection scope of the present invention.

[0060] Specifically, the size and spacing of the rigid limiting blocks 21 in the rigid limiting block group 20 are set after experiments and calculations based on the minimum bending radius of the required flexible X-ray detection panel 10, so that when the rigid limiting blocks 21 are squeezed against each other until the flexible X-ray detection panel 10 can no longer bend, the bending radius of the flexible X-ray detection panel 10 is the designed minimum bending radius.

[0061] In one embodiment, each of the rigid limiting blocks 21 is made of metal.

[0062] The present invention uses metal as the material for the rigid limiting block 21 to ensure that it is not easily deformed when squeezed between them, thereby ensuring the reliability of its limiting effect on the minimum bending radius of the flexible X-ray detection panel 10.

[0063] Specifically, the rigid limiting block 21 can also be made of other structural materials with high strength and resistance to deformation, all of which are within the protection scope of this invention.

[0064] In one embodiment, the material of the elastic stretchable compression layer 30 is at least one of TPEE (thermoplastic polyester elastomer), metal-polymer elastic conductor, gel material, carbon spring, EPDM (ethylene propylene diene monomer rubber), silicone rubber (PDMS), nitrile rubber, or elastic 3D printing resin. Specifically, the elastic stretchable compression layer 30 can also be made of other suitable materials to avoid the extreme bending caused by the stretching of the flexible panel surface and the effect of surface compression wrinkles on the imaging surface, thus ensuring the imaging effect of the X-ray detector; all of these are within the scope of protection of this invention.

[0065] Example 2:

[0066] This embodiment provides a variable curvature X-ray detector structure. Other features of the X-ray detector structure are basically the same as those in Embodiment 1, except that:

[0067] In this embodiment, the flexible X-ray detection panel 10 includes an X-ray direct conversion semiconductor and a mechanical support layer. The mechanical support layer includes two opposing support surfaces, and the X-ray direct conversion semiconductor covers the two support surfaces.

[0068] Specifically, technicians may also use other suitable structures of flexible X-ray detection panels 10 to detect X-rays according to actual application needs, all of which are within the protection scope of this invention.

[0069] In summary, the variable curvature X-ray detector structure of this invention can achieve a variable curvature X-ray detector by replacing complex external support structures such as hinges with a fully flexible X-ray detection panel. This ensures the required variable curvature while reducing the number of product components, lowering processing costs, assembly costs, and maintenance requirements. Furthermore, it reduces size and weight, improving the detector's portability and practical application efficiency. Simultaneously, the cooperation between the rigid limiting block assembly and the flexible X-ray detection panel controls the minimum bending radius, preventing excessive bending of the flexible X-ray detection panel that could lead to puncture, effectively protecting the panel and thus extending the X-ray detector's lifespan. Additionally, by employing a flexible X-ray detection panel with two flexible surfaces, a double-sided bendable X-ray detector is achieved, resulting in higher detection efficiency in dense pipeline scenarios and confined spaces. It can also be automated using an industrial robot mounted on an expansion module. Finally, the use of an elastic, stretchable, and compressible layer to wrap and fill the rigid limiting block and flexible X-ray detection panel avoids extreme bending caused by surface stretching of the flexible panel and prevents surface compression wrinkles from affecting the imaging surface, thus improving the X-ray detector's imaging effect.

[0070] Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0071] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A variable curvature X-ray detector structure, characterized in that, The X-ray detector structure includes: a flexible X-ray detection panel, a rigid limiting block assembly, and an elastic stretchable and compressible layer; The flexible X-ray detection panel includes two opposing flexible surfaces capable of detecting X-rays. Each flexible surface has a rigid limiting block group at its edge. Each rigid limiting block group includes two or more rigid limiting blocks arranged along the bendable direction of the flexible X-ray detection panel at its edge. There is a preset distance between adjacent rigid limiting blocks to limit the minimum bending radius of the flexible X-ray detection panel. One surface of each rigid limiting block is fixedly connected to the edge of the corresponding flexible surface of the flexible X-ray detection panel. The elastic, stretchable, and compressible layer fills the gap between the rigid limiting blocks and wraps the exposed surfaces of the rigid limiting blocks and the flexible X-ray detection panel.

2. The variable curvature X-ray detector structure according to claim 1, characterized in that, The flexible X-ray detection panel includes an X-ray conversion layer, a photoelectric conversion layer, and a mechanical support layer; the mechanical support layer includes two opposing support surfaces, the photoelectric conversion layer covers the two support surfaces, and the X-ray conversion layer covers the surface of the photoelectric conversion layer; one surface of each rigid limiting block is fixedly connected to the surface edge of the corresponding mechanical support layer of the flexible X-ray detection panel.

3. The variable curvature X-ray detector structure according to claim 2, characterized in that, The X-ray conversion layer is a flexible scintillator or a quantum dot scintillator film, used to convert detected X-rays into visible light.

4. The variable curvature X-ray detector structure according to claim 2, characterized in that, The photoelectric conversion layer includes a flexible substrate, a photodiode, and a thin-film transistor switch array. The flexible substrate is fixedly connected to the mechanical support layer, and the photodiode and the thin-film transistor switch array are fabricated on the flexible substrate. The photodiode is used to convert visible light obtained from the X-ray conversion layer into electrical charge and store it, and the thin-film transistor switch array is used to convert the charge stored in the photodiode into pixel-level electrical signals.

5. The variable curvature X-ray detector structure according to claim 4, characterized in that, The flexible substrate is at least one of PI, PEN or PET.

6. The variable curvature X-ray detector structure according to claim 2, characterized in that, The mechanical support layer is made of carbon fiber, polymer film, ultra-thin glass, or metal foil.

7. The variable curvature X-ray detector structure according to claim 1, characterized in that, The flexible X-ray detection panel includes an X-ray direct conversion semiconductor and a mechanical support layer. The mechanical support layer includes two opposing support surfaces, and the X-ray direct conversion semiconductor covers the two support surfaces.

8. The variable curvature X-ray detector structure according to claim 1, characterized in that, The two flexible surfaces of the flexible X-ray detection panel are fixedly connected to the corresponding rigid limiting block group by adhesive bonding; or, the two flexible surfaces of the flexible X-ray detection panel and the corresponding rigid limiting block group are integrally formed by composite process.

9. The variable curvature X-ray detector structure according to claim 1, characterized in that, The material of each of the rigid limiting blocks is metal.

10. The variable curvature X-ray detector structure according to claim 1, characterized in that, The material of the elastic stretchable compression layer is at least one of TPEE, metal-polymer elastic conductor, gel material, carbon spring, EPDM, silicone rubber, nitrile rubber or elastic 3D printing resin.

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