Adjustable double-bulb-tube radiation source device and oral cavity cone beam CT (Computed Tomography) system

Abstract

The invention provides an adjustable double-bulb tube ray source device, which comprises an oil tank main body, and at least two ray generating mechanisms are movably arranged in the oil tank main body; the adjusting mechanism is arranged in the oil tank body and used for changing the relative positions of the ray generating mechanisms in the oil tank body. The at least two ray emitting windows are formed in the fuel tank main body and correspond to the ray generating mechanism; wherein each ray generating mechanism can independently generate rays according to the adjusted position, and the position of the ray emitting window can be correspondingly adjusted. According to the invention, the mounting positions of the bulb tubes are adjusted, so that the distance between the two bulb tubes and the distance from the focus to the exit port can be continuously or sectionally adjusted. The optimal geometric layout can be flexibly set according to the size of a detected object, the imaging view field requirement and the spatial constraint, and the limitation problem that a traditional fixed double-bulb-tube structure can only adapt to a single imaging mode is solved.

Description

Technical Field

[0001] This invention relates to the field of medical imaging equipment technology, specifically to an adjustable dual-tube X-ray source device and an oral cone-beam CT system. Background Technology

[0002] In the field of X-ray imaging and non-destructive testing technology, dual-tube X-ray sources have attracted much attention due to their ability to achieve multi-angle imaging, dual-energy spectral analysis, and rapid alternating scanning. To achieve dual-ray output, traditional technical solutions mainly fall into two categories: The first category involves installing two completely independent single-tube X-ray source systems in the same device. While this solution achieves the functionality, it suffers from significant drawbacks such as a bulky overall structure, high manufacturing costs, complex coordination control between the two systems, and susceptibility to mutual interference. The second category integrates two tubes in a fixed relative position within the same fuel tank structure. Although this achieves a degree of structural compactness, its layout is too rigid, and the spacing between the two tubes, the distance from their respective focal points to the exit port, and the direction of the emitted rays cannot be flexibly adjusted according to the actual application scenario.

[0003] Currently available dual-tube X-ray tanks are typically designed based on a pre-defined, standard imaging geometry. However, in actual medical diagnostics or industrial testing, the size, shape, location, and requirements for imaging field of view, resolution, and penetration vary greatly among the objects being inspected. Fixed tube positions and X-ray directions severely limit the equipment's application range and the flexibility of its imaging modes. For example, when scanning areas of different sizes, the spacing between the two X-rays cannot be adjusted to achieve the optimal field of view; when performing dual-energy imaging at specific angles, the target angle of the tube cannot be fine-tuned to optimize the energy spectrum separation. Furthermore, when installation space is limited, fixed tube anode and cathode orientations can lead to wiring difficulties or poor heat dissipation. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable dual-tube X-ray source device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An adjustable dual-tube X-ray source device includes an oil tank body and further includes: At least two radiation generating mechanisms are provided, which are movably disposed inside the main body of the oil tank; An adjustment mechanism is provided inside the tank body to change the relative positions of each ray generating mechanism inside the tank body. At least two radiation exit windows are provided, which are located on the main body of the fuel tank and correspond to the radiation generating mechanism. Each ray generating mechanism can independently generate rays according to its adjusted position, and the position of the ray emission window can be adjusted accordingly.

[0006] As a further aspect of the present invention: the adjustment mechanism includes a guide rail disposed on the inner wall of the oil tank body and a bracket disposed on each ray generating mechanism and slidably connected to the guide rail.

[0007] As a further aspect of the present invention: the bracket is provided with a locking component for fixing the radiation generating mechanism at any position on the guide rail.

[0008] As a further aspect of the present invention: the radiation generating mechanism includes an X-ray tube, the installation direction of which is adjustable, so that its cathode and anode can be arranged facing the same side or facing different sides.

[0009] As a further aspect of the present invention: the X-ray tube is rotatably mounted on the adjustment mechanism via a connector, the connector being used to lock the X-ray tube after it has been rotated to the correct angle.

[0010] As a further aspect of the present invention, the ray exit window is a detachable window plate.

[0011] As a further aspect of the present invention: an adjustable collimator is provided at the ray exit window, and the opening position or direction of the collimator is adjustable.

[0012] As a further aspect of the present invention: the X-ray generating mechanism further includes a high-voltage transformer and a filament transformer disposed inside the oil tank body for supplying power to the X-ray tube, and a back pressure sampling board for sampling electrical signals. The high-voltage transformer and the filament transformer are connected to the X-ray tube via flexible cables.

[0013] As a further aspect of the present invention, it also includes a heat dissipation medium filled inside the main body of the oil tank and an insulating component disposed outside the high-voltage components of each ray generating mechanism.

[0014] As a further aspect of the present invention, the heat dissipation medium is insulating oil.

[0015] As a further aspect of the present invention: the insulating assembly includes an insulating box disposed inside the oil tank body for encapsulating the back pressure sampling plate and an insulating cover for covering the X-ray tube body.

[0016] As a further aspect of the present invention: the main body of the fuel tank includes a tank body and a cover plate disposed on the top of the tank body.

[0017] As a further aspect of the present invention: a breathing bag is provided on the inner side of the cover plate to balance the pressure fluctuations inside the box caused by changes in the temperature of the insulating oil.

[0018] As a further aspect of the present invention, the cover plate is also provided with an adapter plate, which has an interface for connecting external cables and pipes.

[0019] As a further aspect of the present invention, it also includes an external control system, which is used to receive imaging instructions containing target position parameters and drive the adjustment mechanism to move each of the ray generating mechanisms to the target position. The external control system can also control the ray generating mechanisms to perform alternating exposure operations after the position adjustment is completed.

[0020] As a further aspect of the present invention: the adjustment mechanism includes a drive module disposed inside the main body of the oil tank, the drive module being connected to the ray generating mechanism, and used to respond to instructions from the external control system to drive the ray generating mechanism to move along a preset path to the target coordinate position.

[0021] As a further aspect of the present invention: at least one of the radiation generating mechanisms is constructed as an integrated functional module, wherein the X-ray tube, high-voltage transformer and filament transformer are integrated and encapsulated in a modular housing, and the modular housing is mounted on the adjustment mechanism via a universal joint bracket, so that the entire radiation generating mechanism has the freedom of translation and angle adjustment.

[0022] As a further aspect of the present invention: at least one of the ray emission windows is provided with an adaptive collimation emission unit, the unit including a fine-tuning mechanism that drives its entire body to move relative to the side wall of the tank body, and the adjustable collimator integrated thereon; the fine-tuning mechanism is used to align the center of the unit with the ray emission path of the adjusted ray generating mechanism.

[0023] As a further aspect of the present invention, the external control system is also used to: after driving the adjustment mechanism to change the position or orientation of the ray generating mechanism, automatically generate control commands based on its new spatial coordinate parameters to drive the adjustable collimator or the fine-tuning mechanism at the ray emission window to make coordinated adjustments.

[0024] As a further aspect of the present invention, the device further includes a position detection unit, which is used to detect the spatial position and attitude of each of the ray generating mechanisms within the oil tank body in real time, and to feed the detection data back to the external control system to form a closed-loop control.

[0025] An oral cone-beam CT system includes the aforementioned adjustable dual-tube X-ray source device to achieve dual-ray output.

[0026] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes an adjustable X-ray tube mounting position and adjustment mechanism to achieve continuous or segmented adjustment of the distance between the two X-ray tubes and the distance from the focal point to the exit port. Users can flexibly set the optimal geometric layout according to the size of the object being inspected, the required field of view, and spatial constraints, overcoming the limitation of traditional fixed dual X-ray tube structures that can only adapt to a single imaging mode. This allows the same device to perform multiple tasks, from local scanning to wide-field panoramic imaging, improving the device's adaptability.

[0027] This invention allows for independent adjustment of the installation direction of each X-ray tube, enabling the cathode and anode to be arranged on the same or opposite sides. By changing the direction of the target angle of the X-ray tube, the exit angle and irradiation field shape of the X-rays can be adjusted. This provides crucial technical freedom for energy spectrum optimization in dual-energy imaging, viewing angle configuration in multi-angle projection reconstruction, and directional detection of special structural components, enhancing the functionality of the imaging system and enabling more complex and precise imaging protocols.

[0028] This invention ensures that the position of the exit port on the tank can be adjusted synchronously with the position of the X-ray tube, guaranteeing that the X-rays pass through the window with minimal attenuation and scattering under any layout. Compared to the problem of traditional fixed exit ports that may cause X-rays to pass obliquely through the tank wall and reduce efficiency, this application can always maintain the alignment and efficiency of the optical path, ensuring effective output of X-ray dose and stability of image signal-to-noise ratio under different operating modes.

[0029] The adjustable dual-tube X-ray source device provided by the present invention, based on the adjustable spatial layout achieved in the first embodiment, realizes the automation, precision and intelligence of device adjustment by introducing a precision adjustment mechanism with servo drive and coordinate control, a highly integrated modular X-ray generating unit and an adaptive collimation exit window with linkage function. Attached Figure Description

[0030] Figure 1 This is an overall structural diagram of the adjustable dual-tube X-ray source device; Figure 2 This is a front view of an adjustable dual-tube X-ray source device. Figure 3 A schematic diagram of the AA cross-section of an adjustable dual-tube X-ray source device; Figure 4 This is a schematic diagram of the BB cross-section of an adjustable dual-tube X-ray source device.

[0031] In the picture: 10. Fuel tank body; 110. Box body; 120. Cover plate; 20. Radiation generating mechanism; 210. X-ray tube; 220. High-voltage transformer; 230. Filament transformer; 240. Back pressure sampling plate; 30. Breathing bag; 40. Insulation box; 50. Insulating cover; 60. Adapter board. Detailed Implementation

[0032] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0033] Example 1 like Figures 1 to 4 As shown, this embodiment proposes an adjustable dual-tube X-ray source device, including an oil tank body 10, at least two X-ray generating mechanisms 20, an adjustment mechanism, and at least two X-ray emission windows: the at least two X-ray generating mechanisms 20 are movably disposed inside the oil tank body 10; the adjustment mechanism is disposed inside the oil tank body 10 and is used to change the relative position of each X-ray generating mechanism 20 inside the oil tank body 10; at least two X-ray emission windows are opened on the oil tank body 10 and correspond to the X-ray generating mechanisms 20; wherein, each X-ray generating mechanism 20 can independently generate X-rays according to the adjusted position, and the position of the X-ray emission window can be adjusted accordingly; According to specific imaging needs, the user drives the adjustment mechanism to move the two X-ray generating mechanisms 20 inside the tank in three-dimensional space, adjusting their distance from each other and their spatial coordinates relative to the tank's inner wall. When the position of the X-ray generating mechanism 20 changes, the corresponding X-ray exit windows on the tank's side wall also need to be adjusted to ensure that the X-ray beam can be emitted efficiently without obstruction. After adjustment, each X-ray generating mechanism 20 can operate independently in its new position, alternately generating X-rays. Through the movable X-ray generating mechanism 20 and adjustable exit windows, the on-site configurability of a dual-tube spatial layout is achieved within a single tank. This allows the equipment to adapt to different application scenarios, from small-field-of-view high-resolution scanning to large-area imaging, thereby improving the adaptability of the dual-tube X-ray source.

[0034] The X-ray exit window is a detachable window plate, and an adjustable collimator is installed at the exit window. The opening position or direction of the collimator is adjustable. When the position or orientation of the X-ray generating mechanism 20 is adjusted, the original fixed exit window may not match the new X-ray path. In this case, the original window plate on the tank can be removed and replaced with a new window plate whose opening position (corresponding to the center of the new X-ray beam) or size (corresponding to the size of the new field of view) matches. In addition, an adjustable collimator is installed at the window. By manually or electrically changing the opening degree and direction of its blades or aperture, the shape, size, and irradiation field of the emitted X-ray beam can be finely adjusted in real time to adapt to different irradiation needs.

[0035] Specifically, the adjustment mechanism includes guide rails mounted on the inner wall of the tank body 10 and brackets mounted on each radiation generating mechanism 20 and slidably connected to the guide rails. The brackets are equipped with locking components to fix the radiation generating mechanism 20 to any position on the guide rails. The guide rails provide a defined movement path and mechanical guidance for the brackets. Operators or drive devices can push or pull the brackets along the guide rails, causing the entire radiation generating mechanism 20 fixed thereon to move smoothly. Once the radiation generating mechanism 20 has moved to the target position, tightening or triggering the locking components on the brackets (such as bolts, eccentric wheels, or hydraulic clamping devices) securely locks the brackets to the guide rails, thus stably fixing the radiation generating mechanism 20 at the desired spatial coordinates.

[0036] like Figures 1 to 4 As shown, in a preferred embodiment, based on the above-described method, the X-ray generating mechanism 20 further includes an X-ray tube 210. The mounting direction of the X-ray tube 210 is adjustable, allowing its cathode and anode to be arranged facing the same side or facing different sides. The X-ray tube 210 is mounted on a fixed base inside a bracket or oil tank via a connecting mechanism (such as a turntable or hinge with an angle scale) that allows it to rotate around an axis. By manually or by driving the connecting mechanism to rotate, the circumferential angle of the X-ray tube 210 body inside the oil tank can be changed, thereby adjusting the orientation of its built-in cathode (filament) and anode (target). When both X-ray tubes 210 face the same direction, parallel or coplanar emission can be achieved; when one cathode faces left and one anode faces right, the X-rays are emitted from different directions, thereby changing the spatial geometry of the dual X-ray beams. By giving each X-ray tube 210 an independent mounting direction and adjustment capability, the output direction of the dual X-ray source is no longer limited to a fixed mode. Therefore, the equipment can flexibly configure the X-ray emission mode according to the orientation of the object being detected, spatial limitations, or specific imaging physical requirements, thereby improving the adaptability of the dual X-ray tube system in complex application scenarios.

[0037] Additionally, the X-ray tube 210 is mounted on the adjustment mechanism via a rotatable connector, which has the function of locking its rotation angle. The connector (such as a rotating seat with a bearing) serves as an intermediate interface, connecting the X-ray tube 210 to the support in the adjustment mechanism. The X-ray tube 210 is fixed to the upper part of the connector and can rotate 360 ​​degrees or a defined angle around its rotation axis with the connector. The connector integrates an angle locking mechanism (such as a locking ring with a handle, a ratchet, or an electromagnetic brake). When rotated to the target angle (such as 0°, 90°, 180°, etc.), this mechanism can securely lock the connector to the lower support, thereby precisely maintaining the desired orientation of the X-ray tube 210.

[0038] Furthermore, the X-ray generating mechanism 20 also includes a high-voltage transformer 220 and a filament transformer 230 installed inside the tank body 10 for supplying power to the X-ray tube 210, and a back pressure sampling plate 240 for sampling electrical signals. The high-voltage transformer 220 and the filament transformer 230 are connected to the X-ray tube 210 via flexible cables. In use, the high-voltage transformer 220 and the filament transformer 230 are mounted as fixed components on the inner wall of the tank, while the X-ray tube 210 is mounted on a movable bracket. The two are electrically connected to a low-voltage cable of a specific length and specification. The back pressure sampling plate 240 can monitor the key electrical parameters of the high-voltage circuit in real time, providing feedback signals for system control. When the X-ray tube 210 moves with the bracket, the flexible cable can bend and extend accordingly, always maintaining the continuity and reliability of the electrical connection without affecting the transmission of high-voltage power and the supply of filament current.

[0039] like Figures 1 to 4 As shown, in a preferred embodiment, based on the above method, the adjustable dual-tube X-ray source device further includes a heat dissipation medium filled inside the tank body 10 and insulating components disposed outside the high-voltage components of each X-ray generating mechanism 20. The heat dissipation medium is insulating oil, and the insulating components include an insulating box 40 disposed inside the tank body 10 for encapsulating the back pressure sampling plate 240 and an insulating cover 50 for covering the body of the X-ray tube 210. The insulating oil filling the tank serves as the base medium, immersing all high-voltage components such as the X-ray tube 210 and transformer, providing uniform electrical insulation and first-level heat dissipation. Furthermore, enhanced insulation is applied to specific high-voltage components: the back pressure sampling plate 240 is completely sealed within the insulating box 40, isolating it from the high-voltage oil environment to prevent interference and breakdown; the body of the X-ray tube 210 (except for the X-ray exit window and electrical connectors) is covered by the tightly wrapped insulating cover 50. This insulating cover 50, together with the insulating oil, constitutes a double insulating barrier between the metal shell of the X-ray tube 210 and the grounded tank, significantly improving the withstand voltage level. Heat is transferred to the tank wall through the insulating oil and dissipated. This ensures that the insulation performance and heat dissipation efficiency do not decrease even when the device undergoes frequent layout adjustments and long-term high-load operation, thus extending the service life of the equipment.

[0040] like Figures 1 to 4 As shown, in a preferred embodiment, based on the above method, the oil tank body 10 further includes a tank body 110 and a cover plate 120 disposed on the top of the tank body 110; the tank body 110 provides installation space and mechanical support for the functional components of the equipment; the cover plate 120 and the tank body 110 cooperate through a sealing structure to form a sealed oil cavity, preventing the insulating oil from leaking and isolating the external environment.

[0041] It should be noted that an adapter plate 60 is also provided on the cover plate 120. The adapter plate 60 has interfaces for connecting external cables and pipelines. The tank adapter plate, as an integrated external interface, is fixedly installed on the tank cover plate 120. It integrates a variety of standardized interfaces, such as high-voltage power sockets, low-voltage control signal connectors, oil circulation quick connectors, and grounding terminals. All cables (such as transformer power lines, X-ray tube control lines, and sensor signal lines) and pipelines (such as possible oil circulation pipes) leading out of the tank are centrally connected to the corresponding terminals on the inner side of the adapter plate 60, and then quickly and reliably connected to external systems (such as high-voltage generator cabinets, control systems, and cooling units) through the interfaces on the outer side of the adapter plate 60.

[0042] A breather bag 30 is installed inside the cover plate 120 to balance the pressure fluctuations inside the tank 110 caused by temperature changes in the insulating oil. During operation, the insulating oil inside the tank absorbs heat from the X-ray tube 210 and the transformer, causing its temperature to rise and its volume to expand, resulting in increased internal pressure. At this time, the breather bag 30, fixed inside the tank cover plate 120 and located in the upper space of the tank 110, actively absorbs or compensates for the volume changes of the oil through the contraction or expansion of its flexible bladder, thereby automatically regulating and balancing the internal pressure of the tank, preventing excessive pressure from causing seal failure or excessive pressure from introducing external air. The insulating oil simultaneously performs the dual functions of insulation and heat dissipation, ensuring the safety of the internal high voltage and efficiently transferring heat. By combining the flexible breather bag 30 with the insulating oil medium, a reliable and adaptive pressure regulation capability is provided for the closed tank system, thus solving the problem of internal pressure fluctuations caused by temperature cycling and facilitating the improvement of the sealing system's lifespan.

[0043] like Figures 1 to 4 As shown, in a preferred embodiment, based on the above method, the adjustable dual-tube X-ray source device further includes an external control system. The external control system receives imaging commands containing target position parameters and drives the adjustment mechanism to move each X-ray generating mechanism 20 to the target position. Furthermore, after the X-ray generating mechanism 20's position is adjusted, the external control system can control it to perform alternating exposure. As an intelligent command center, the external control system receives commands from the operating interface or upper-level imaging software. These commands not only contain exposure parameters but also specify the target spatial coordinates of each of the two X-ray tubes 210. After parsing the commands, the system drives the motor or actuator in the adjustment mechanism, moving the support and X-ray tubes 210 along the interface outside the guide rail 0 to the predetermined position and automatically locking them. After completing the geometric layout adjustment, the system switches to exposure control mode, sending independent enable signals to the two X-ray tubes 210 according to a preset timing sequence, strictly controlling their alternating operation to perform the imaging task.

[0044] Example 2 This embodiment, as a further supplement and refinement to the aforementioned first embodiment, provides another specific implementation scheme for an adjustable dual-tube X-ray source device. This embodiment focuses on optimizing and expanding from the perspectives of automated driving of the adjustment mechanism, modular integrated design of the X-ray generation unit, and linkage adaptation mechanism of the exit window, aiming to improve the accuracy, efficiency, and overall coordination of the device adjustment to adapt to more complex or frequently switching imaging workflows.

[0045] like Figures 1 to 4 As shown (the illustrated structure also applies to the architecture of this embodiment), the main body of the device remains a sealed oil tank body 10, which consists of a tank body 110 and a cover plate 120 connected by a sealing structure. The interior is filled with insulating oil as a cooling and insulating medium. A breathing bag 30 is provided on the inner side of the cover plate 120 to balance the internal pressure, and an adapter plate 60 integrating various interfaces is installed on the outer side. These basic structures constitute the environmental guarantee for the stable operation of the device, consistent with the principle of the first embodiment.

[0046] The significant feature of this embodiment lies in its highly integrated and automated X-ray generating module and its precisely coordinated drive and adjustment system. Each X-ray generating mechanism 20 is designed as a compact and fully functional independent module in this scheme. This module not only includes the core X-ray tube 210, but also highly integrates the high-voltage transformer 220, the filament transformer 230, and the back pressure sampling circuit into a unit with a streamlined housing. This unit is mounted on the adjustment mechanism through a "universal connector" with multi-degree-of-freedom adjustment capability. This universal connector not only allows the X-ray tube 210 to rotate around its own axis (as described in the first embodiment), but also allows the entire X-ray generating module to be pitched within a limited angle, thereby achieving fine-tuning of the emitted X-ray angle. This allows the intersection point or parallel spacing of the dual X-ray beams to be set more precisely over a wider range. The connection between the high-voltage components inside the module and the X-ray tube 210 adopts an integrated wiring harness with a combination of rigidity and flexibility, minimizing stress concentration caused by movement and improving reliability.

[0047] To achieve precise and automated positioning of the aforementioned modules, the adjustment mechanism in this embodiment abandons the simple manual guide rail sliding mode and upgrades to a servo drive system based on precision coordinate control. Specifically, a two-dimensional or three-dimensional linear module drive system is installed inside the housing 110 of the oil tank body 10. The universal joint of each X-ray generating module is fixed on a slider, which is driven by a precision ball screw or synchronous belt mechanism driven by a servo motor and can move independently along the preset X-axis and Y-axis directions (depending on the specific three-dimensional design). All drive motors and position sensors are connected to the external control system via oil-resistant cables. Thus, the movement of the X-ray generating mechanism 20 is no longer a rough manual push and pull, but is transformed into a coordinate translation that can be precisely controlled by the program. When the layout needs to be adjusted, the external control system drives the corresponding servo motor according to the input target coordinate parameters to quickly and accurately move the two X-ray generating modules synchronously or asynchronously to the designated position, and automatically locks them by an electromagnetic brake or mechanical locking mechanism. The entire process does not require manual intervention by opening the housing, significantly improving adjustment efficiency and repeatability.

[0048] The changes in the position and angle of the X-ray generating mechanism 20 necessitate coordinated adaptation of the X-ray exit window. This embodiment employs an intelligent linkage design for this purpose. The X-ray exit window is no longer merely a detachable and replaceable window panel, but has evolved into an "adaptive collimation exit unit." This unit is fixed to a specific mounting base on the side wall of the housing 110. Its main body is a composite mechanism integrating an electric multi-leaf collimator and a position sensor. When the external control system drives the X-ray generating module to move and rotate into position, the system can automatically calculate the optimal X-ray exit path based on the known new coordinates and angle data of the module. Subsequently, the control system sends a command to the corresponding adaptive collimation exit unit. The micro stepper motor built into the unit drives its entire body to perform lateral or longitudinal micro-motion translation on the mounting base, ensuring that its central hole is precisely aligned with the new X-ray beam central axis. At the same time, its internal electric multi-leaf collimator automatically adjusts the opening shape and size according to the preset irradiation field parameters. This linkage mechanism ensures that after any adjustment, the X-ray can pass through the window with the highest efficiency and without obstruction, forming an irradiation field that meets the requirements, achieving intelligent coordination of "the tube moves, the window follows."

[0049] Regarding insulation and heat dissipation, this embodiment, while inheriting multiple protection measures such as complete immersion in insulating oil, protection of the sampling circuit by the insulating box 40, and covering of the X-ray tube 210 body by the insulating cover 50, has been specially optimized for the highly integrated X-ray generating module. The module's outer shell is designed with flow-guiding fins that match the flow direction of the insulating oil, effectively guiding the hot oil through the high-voltage transformer 220 and the anode area of ​​the X-ray tube 210 where heat generation is most concentrated, forming an efficient directional heat dissipation path. At the same time, key high-voltage connection points inside the module are encapsulated, further improving local insulation strength and the overall integrity of the module.

[0050] This embodiment demonstrates a higher degree of automation and integration. The operator only needs to select a preset imaging mode (such as "high resolution small field of view dual-plane scanning", "large range alternating perspective", etc.) or directly input the three-dimensional spatial coordinates and angle parameters of the two X-ray sources on the human-machine interface.

[0051] Upon receiving the instruction, the external control system will automatically execute the following steps in sequence: 1) Drive the servo system to position and orient the two ray generating modules to the target location; 2) Control the movement and alignment of the adaptive collimation emission unit, and adjust the collimator opening; 3) After confirming that all mechanisms are in place, start the high voltage and control the two X-ray tubes 210 to perform alternating exposure or synchronous triggering according to the preset timing sequence (applicable to specific modes). The entire process transforms the dual-tube X-ray source from a fixed device into an intelligent imaging tool that can be flexibly reconfigured according to software instructions.

[0052] This embodiment constructs a more automated, more precise, and more interconnected adjustable dual-tube X-ray source device by employing a modularly integrated X-ray generating mechanism 20, a servo-driven precision coordinate adjustment mechanism, and an intelligent exit window with adaptive alignment. It not only fully realizes all the advantages described in the first embodiment in terms of functionality, but also significantly improves ease of use, adjustment accuracy, and response speed. It is particularly suitable for advanced non-destructive testing or medical imaging fields with stringent requirements for imaging geometry and the need for rapid switching of scanning schemes, further broadening the application boundaries and technical value of this invention.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An adjustable dual-tube X-ray source device, comprising an oil tank body (10), characterized in that, Also includes: At least two radiation generating mechanisms (20) are movably disposed inside the tank body (10); An adjustment mechanism is provided inside the tank body (10) to change the relative positions of each ray generating mechanism (20) inside the tank body (10); At least two radiation exit windows are provided, which are located on the tank body (10) and correspond to the radiation generating mechanism (20); Each ray generating mechanism (20) can independently generate rays according to its adjusted position, and the position of the ray emission window can be adjusted accordingly.

2. The adjustable dual-tube X-ray source device according to claim 1, characterized in that, The adjustment mechanism includes a guide rail installed on the inner wall of the tank body (10) and a bracket installed on each ray generating mechanism (20) and slidably connected to the guide rail.

3. The adjustable dual-tube X-ray source device according to claim 2, characterized in that, The bracket is equipped with a locking component for fixing the radiation generating mechanism (20) at any position on the guide rail.

4. The adjustable dual-tube X-ray source device according to claim 3, characterized in that, The radiation generating mechanism (20) includes a tube (210) whose installation direction is adjustable, so that its cathode and anode can be arranged to face the same side or to face different sides.

5. The adjustable dual-tube X-ray source device according to claim 4, characterized in that, The ball tube (210) is rotatably mounted on the adjustment mechanism via a connector, which is used to lock the ball tube (210) after it has been rotated to the correct angle.

6. The adjustable dual-tube X-ray source device according to claim 1, characterized in that, The ray exit window is a detachable window panel.

7. The adjustable dual-tube X-ray source device according to claim 6, characterized in that, An adjustable collimator is provided at the ray exit window, and the opening position or direction of the collimator is adjustable.

8. The adjustable dual-tube X-ray source device according to claim 1, characterized in that, The X-ray generating mechanism (20) also includes a high-voltage transformer (220) and a filament transformer (230) installed inside the oil tank body (10) for supplying power to the X-ray tube (210), and a back pressure sampling board (240) for sampling electrical signals. The high-voltage transformer (220) and the filament transformer (230) are connected to the X-ray tube (210) via flexible cables.

9. The adjustable dual-tube X-ray source device according to claim 8, characterized in that, It also includes a heat dissipation medium filled inside the tank body (10) and an insulating component located outside the high-voltage components of each ray generating mechanism (20).

10. The adjustable dual-tube X-ray source device according to claim 9, characterized in that, The heat dissipation medium is insulating oil.

11. The adjustable dual-tube X-ray source device according to claim 9, characterized in that, The insulation assembly includes an insulation box (40) disposed inside the tank body (10) for encapsulating the back pressure sampling plate (240) and an insulation cover (50) for covering the body of the X-ray tube (210).

12. The adjustable dual-tube X-ray source device according to claim 11, characterized in that, The main body of the fuel tank (10) includes a tank body (110) and a cover plate (120) disposed on the top of the tank body (110).

13. The adjustable dual-tube X-ray source device according to claim 12, characterized in that, A breathing bag (30) is provided on the inner side of the cover plate (120) to balance the pressure fluctuation inside the box (110) caused by the temperature change of the insulating oil.

14. The adjustable dual-tube X-ray source device according to claim 12, characterized in that, The cover plate (120) is also provided with an adapter plate (60), which has an interface for connecting external cables and pipelines.

15. The adjustable dual-tube X-ray source device according to claim 1, characterized in that, It also includes an external control system, which is used to receive imaging instructions containing target position parameters and drive the adjustment mechanism to move each of the ray generating mechanisms (20) to the target position. The external control system can also control the ray generating mechanism (20) to perform alternating exposure after the position adjustment is completed.

16. The adjustable dual-tube X-ray source device according to claim 1, characterized in that, The adjustment mechanism includes a drive module disposed inside the oil tank body (10). The drive module is connected to the ray generating mechanism (20) and is used to respond to the instructions of the external control system to drive the ray generating mechanism (20) to move along a preset path to the target coordinate position.

17. The adjustable dual-tube X-ray source device according to claim 1 or 4, characterized in that, At least one of the aforementioned radiation generating mechanisms (20) is constructed as an integrated functional module, wherein its X-ray tube (210), high-voltage transformer (220) and filament transformer (230) are integrated and encapsulated in a modular housing, which is mounted on the adjustment mechanism via a universal joint bracket, so that the radiation generating mechanism (20) as a whole has translational and angular adjustment freedom.

18. The adjustable dual-tube X-ray source device according to claim 7, characterized in that, An adaptive collimation emission unit is provided at at least one of the ray emission windows. The unit includes a fine-tuning mechanism that drives its entirety to move relative to the side wall of the tank body (10), and the adjustable collimator integrated thereon. The fine-tuning mechanism is used to align the center of the unit with the ray emission path of the adjusted ray generating mechanism (20).

19. The adjustable dual-tube X-ray source device according to claim 15, characterized in that, The external control system is also used to: after driving the adjustment mechanism to change the position or orientation of the ray generating mechanism (20), automatically generate control commands based on its new spatial coordinate parameters to drive the adjustable collimator or the fine-tuning mechanism at the ray exit window to make coordinated adjustments.

20. The adjustable dual-tube X-ray source device according to claim 1 or 2, characterized in that, The device also includes a position detection unit, which is used to detect the spatial position and attitude of each of the radiation generating mechanisms (20) in the oil tank body (10) in real time, and feed the detection data back to the external control system to form a closed-loop control.

21. An oral cone-beam CT system, characterized in that, Includes the adjustable dual-tube X-ray source device as described in any one of claims 1 to 15, in order to achieve dual-ray output.

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