A transmission imaging system

Abstract

The application provides a transmission imaging system, comprising a box body and a flat panel detector, the box body comprises a body and a cover plate rotatable relative to the body to open and close the box body, a base is arranged in the box body, the base divides an internal space of the box body into a first accommodating part and a second accommodating part adjacent to each other in an up-down direction, and the base is used to place an object to be detected; the flat panel detector is arranged on an inner plate surface of the cover plate, the cover plate is opened to make a radioactive source, the object to be detected and the flat panel detector located on the same straight line, and rays radiated by the radioactive source are received by the flat panel detector after passing through the object to be detected. The technical scheme of the application integrates the base, the accommodating part and the flat panel detector through the box body, modularizes the equipment, is convenient to carry and fast to deploy, and solves the problems of the traditional equipment being heavy and complex to install.

Description

Technical Field

[0001] This application relates to the field of transmission imaging technology, and in particular to a transmission imaging system. Background Technology

[0002] X-ray transmission imaging technology utilizes the penetrating, differential absorption, photosensitivity, and fluorescence effects of X-rays to project the density distribution information of different parts of an object onto an X-ray acquisition and imaging device, converting it into a digital image that visually presents the object's internal structural information. X-ray detection devices, due to their ability to perform non-destructive detection and evaluation of objects, have wide applications in non-destructive testing in the medical, industrial, and safety fields, enabling rapid identification of hazardous or contraband items within sealed containers. However, existing transmission imaging systems still face significant technical bottlenecks in practical applications. For example, the equipment is heavy, difficult to install and carry, and the assembly process is time-consuming and labor-intensive, hindering its widespread application in various scenarios. Therefore, an improved technical solution is needed to address the shortcomings of existing technologies. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this application is to provide a transmission imaging system to solve at least one or more technical problems existing in the prior art.

[0004] This application provides a transmission imaging system, including:

[0005] The box includes a main body and a cover that can be rotatably opened and closed relative to the main body. The box is provided with a base, which divides the internal space of the box into a first accommodating part and a second accommodating part that are adjacent to each other. The base is used to place the object to be tested.

[0006] A flat panel detector is disposed on the inner surface of the cover plate. When the cover plate is opened, the radiation source, the object to be detected, and the flat panel detector are located on the same straight line. The radiation emitted by the radiation source passes through the object to be detected and is received by the flat panel detector.

[0007] In an optional embodiment, a radiation shielding device is also included, which is located between the operating end and the radiation source.

[0008] In an optional embodiment, a handbrake is also included, which is communicatively connected to the radiation source and used to control the opening and closing of the radiation source.

[0009] In an optional embodiment, the flat panel detector is mounted on the inner surface of the cover plate via a quick-release structure.

[0010] In an optional embodiment, the quick-release structure includes a fixing member disposed on the cover plate and a pressure plate for locking the flat panel detector, wherein the pressure plate is rotatably connected to the fixing member via a connector.

[0011] In an optional embodiment, a support structure is provided inside the box, with both ends of the support structure respectively disposed on the main body and the cover plate, so as to support and position the cover plate when the cover plate is opened.

[0012] In an optional embodiment, the operating terminal includes a display screen, which is used to receive and display digital signals from the flat panel detector to display a transmission image of the object to be detected.

[0013] In an optional embodiment, a lifting device is also included to support the radiation source and adjust the emission height of the radiation source.

[0014] In an optional embodiment, the base is further equipped with a height adjustment mechanism to adjust the height of the object to be detected.

[0015] In an optional embodiment, a profiler lamp is installed at the exit port of the radiation source. The profiler lamp has the same angle and focal point as the exit port of the radiation source and is used to indicate the field of view of the radiation.

[0016] Compared with the prior art, the transmission imaging system provided in this application has the following advantages:

[0017] The technical solution provided in this application integrates the base, housing, and flat panel detector into a box, modularizing the equipment for easy portability and rapid deployment, thus solving the problems of bulky and complex installation of traditional equipment. In addition, the box cover aligns the X-ray source, the object to be detected, and the detector after opening and closing. The flat panel detector is installed on the box cover through a quick-release structure, simplifying the operation process, ensuring accurate imaging optical path, and improving detection efficiency. Attached Figure Description

[0018] Figure 1 A schematic diagram of the transmission imaging system provided in this application;

[0019] Figure 2 This is a schematic diagram of a quick-release structure.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100 Operating Terminal

[0022] 200 Radiation Shielding Device

[0023] 300 handbrake

[0024] 400 radioactive sources

[0025] 500 Lifting Device

[0026] 600 enclosure

[0027] 610 body

[0028] 620 cover plate

[0029] 630 abutment

[0030] 640 Support Structure

[0031] 700 Quick-release structure

[0032] 710 Fastener

[0033] 720 connector

[0034] 730 pressure plate

[0035] 800 Flat Panel Detector Detailed Implementation

[0036] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and principles of this application from the content disclosed in this specification. This application 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 this application.

[0037] In the detailed description of the embodiments of this application, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this application. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0038] The text may use expressions such as "between" to indicate both extremes, and "multiple" to indicate two or more, unless otherwise explicitly specified. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0039] like Figure 1As shown, this application provides a transmission imaging system, which, from left to right, includes an operating terminal 100, a radiation shielding device 200, a radiation source 400, and a housing 600, wherein a flat panel detector 800 is installed inside the housing 600. By combining the radiation source 400, the flat panel detector 800, and the mechanical structures, related electronic control systems, and communication systems required to achieve their functions, a portable transmission imaging system can be constructed, thereby reducing the complexity of the transmission imaging system.

[0040] See Figure 1 and Figure 2 The enclosure 600 includes a main body 610 and a cover 620 that can be rotatably opened and closed relative to the main body 610. A base 630 is provided inside the enclosure 600 for placing the object to be tested. The base 630 divides the internal space of the enclosure into a first and a second adjacent receiving section. A flat panel detector 800 is disposed on the inner surface of the cover 620. When the cover 620 is opened to a suitable angle, the radiation source 400, the object to be tested, and the flat panel detector 800 are aligned in a straight line. At this point, the radiation emitted by the radiation source 400 passes through the object to be tested and is received by the flat panel detector 800. Furthermore, one edge of the cover 620 is connected to one edge of the body 610 via a hinge, allowing the cover 620 to rotate around the hinge to open or close the housing 600. It is understood that a support structure 640 is also provided between the cover 620 and the body 610. When the cover 620 is opened to a suitable angle for detection, the support structure 640 can support and position the cover 620, preventing it from automatically closing due to its own weight. Optionally, the housing 600 can adopt a split design, such as an upper and lower split housing, with the upper and lower parts connected by snaps or latches. The connection method between the cover 620 and the body 610 of the housing 600 is not intended to limit this application.

[0041] In the above embodiment, the first receiving portion is the area above the base 630, that is, the mounting area of ​​the flat panel detector 800. The size of the first and second receiving portions is determined by the height of the base 630. Further, the base 630 is also equipped with a height adjustment mechanism (not shown in the figure) to adjust the height of the object to be detected. Optionally, the height adjustment mechanism can be any mechanism that achieves the height adjustment function, such as a rotating telescopic support rod provided below the base 630, or a multi-layer pad material provided above the base 630. It is understood that the height adjustment mechanism can be located below the base 630, that is, within the area of ​​the second receiving portion, or above the base 630, so that the operator can directly observe and operate, quickly adjust its height, and place the object to be detected at a suitable detection height. In this embodiment, by adjusting the platform height through the built-in foam pad, it is ensured that objects of different heights and thicknesses are located at the center of the detector, on the same horizontal axis as the radiation source 400 and the flat panel detector 800, thus expanding the application range of the system. Furthermore, foam pads can be a combination of multiple layers and various thicknesses of padding material. By using a combination of padding materials of various thicknesses or increasing or decreasing their quantity, precise adjustment of different heights can be achieved.

[0042] In the above embodiment, the second receiving section is the area below the base 630. This area can hold other components or consumables required for operation, such as power cords, spare batteries, lifting device 500, radiation source 400, and tablet computer. When the cover 620 closes the housing 600, it facilitates the operator to carry the relevant consumables uniformly. Furthermore, the base 630 can be a detachable tray, serving as both the base plate of the first receiving section and the top plate of the second receiving section. It can be quickly disassembled for operator use and can accommodate objects of different sizes to be tested.

[0043] In an optional implementation, the system uses a cone-beam X-ray source to achieve rapid imaging and improve imaging resolution. Due to its good isotropy and uniform energy distribution, the cone-beam reduces the need for beam confinement, allowing more rays to effectively penetrate the object and be received by the flat panel detector, thus significantly improving signal acquisition efficiency. Furthermore, the smaller focal size of the cone-beam X-ray source reduces geometric ambiguity, resulting in sharper imaging edges. It also allows for flexible adjustment of the object's position, enabling local magnification while maintaining high X-ray utilization. This allows for precise imaging and observation of small parts within the target object, improving detection accuracy.

[0044] In an optional embodiment, a lifting device 500 is also provided below the radiation source 400. The radiation source 400 is fixed to the lifting device 500 by bolts or quick-release clips. The lifting device 500 is used to support and adjust the height of the radiation emitted by the radiation source 400 to adapt to different sized objects, optimize the imaging field of view, and ensure that the radiation penetration path covers the target area, realizing various inspection needs from ground-level inspection, such as suitcases, to high-level inspection, such as large industrial components. Furthermore, the lifting device 500 can adopt a multi-stage telescopic sleeve or a screw screw structure, such as a tripod support frame that can be vertically lifted. Using a mechanical lifting structure is more stable and reliable, avoiding imaging deviation. Furthermore, the lifting device 500 can be folded and stored in the second receiving section below the housing 600, further reducing the transportation volume.

[0045] In an optional embodiment, a profiler lamp is installed at the exit port of the radiation source 400. The profiler lamp has the same angle and focal point as the exit port, and is used to indicate the field of view of the radiation, ensuring that the indicated range is consistent with the actual imaging range and improving operational accuracy. The profiler lamp can avoid invalid exposure and reduce the risk of radiation leakage. Furthermore, the profiler lamp uses laser profiling, making the contour display more precise.

[0046] See Figure 1 and Figure 2 In an optional embodiment, the flat panel detector 800 is mounted on the inner surface of the cover plate 620 via quick-release structures 700. Two quick-release structures 700 are located on either side of the upper edge of the cover plate 620 to ensure a secure installation of the flat panel detector 800. The quick-release structures 700 enable rapid installation and removal of the flat panel detector 800, facilitating battery replacement or subsequent maintenance, reducing equipment assembly time, and improving overall detection efficiency. See also... Figure 2In an optional embodiment, the quick-release structure 700 includes a fixing member 710 disposed on the cover plate 620 and a pressure plate 730 for locking the flat panel detector 800. The pressure plate 730 is rotatably connected to the fixing member 710 via a connector 720. The pressure plate 730 and the fixing member 710 cooperate to provide a stable lock, ensuring that the flat panel detector 800 is stably engaged on the inner wall of the cover plate 620, preventing the detector from loosening or falling off during transportation or use. The connector 720 is sleeved on the pivot of the fixing member 710 and can be rotated outward to open or rotated inward to lock around the fixing member 710. The rotatable connector 720 effectively simplifies disassembly and installation, and the operator can complete the operation with one hand, making it simple and efficient to use. It is understood that the quick-release structure 700 can also be a slide rail type quick-release structure, in which the flat panel detector 800 is pushed in and locked along the slide rail, or it can be a magnetic quick-release structure, in which the flat panel detector 800 is fixed by magnetic attraction. However, the mechanical quick-release structure 700 provided in this embodiment makes the flat panel detector more securely installed and locked, and the flat panel detector 800 inside the box will not fall off and be damaged due to vibration during transportation.

[0047] In an optional embodiment, a support structure 640 is provided inside the housing 600. The two ends of the support structure 640 are respectively located on the main body 610 and the cover plate 620. Two support structures 640 are symmetrically arranged on both sides of the housing 600 to distribute the load on the cover plate and prevent uneven force on one side from causing displacement. When the cover plate 620 is opened, the support structure 640 supports and positions the cover plate 620. The support structure 640 ensures that the cover plate 620 is fixed at a fixed angle after opening, forcibly fixing its angle with the housing body, for example, to 90 degrees, keeping the radiation source 400, the object to be detected, and the flat panel detector 800 collinear. The housing with the built-in support structure 640 eliminates the need for additional brackets to support the cover plate 620, avoiding the occupation of extra space and reducing the system's reliance on external devices. Furthermore, the cover plate 620, through a multi-level slot or telescopic rod design, achieves adjustable opening angles, for example, allowing the cover plate to be adjusted to 80 degrees, 90 degrees, or 120 degrees, adapting to different detection scenario requirements. The support structure 640 provided in this embodiment is a folding bracket structure, namely a first bracket connected to the main body 610 and a second bracket connected to the cover plate 620. The first bracket and the second bracket are connected by a rotating structure. When the cover plate 620 is opened to be perpendicular to the main body 610, the first bracket and the second bracket reach a locking angle to realize the automatic locking and position fixation of the cover plate 620, that is, to realize the position fixation of the flat panel detector 800.

[0048] In an optional embodiment, a radiation shielding device 200 should also be configured between the operating end 100 and the radiation source 400. The radiation shielding device 200 can effectively absorb scattered rays, protecting the operator from radiation damage. The radiation shielding device 200 is located at a certain position between the operating end 100 and the radiation source 400, and its distance from the operating end 100 can be moved or adjusted according to actual needs, simplifying the protection process. The radiation shielding device 200 can be made of materials such as lead plates, lead rubber, lead glass, or composite shielding materials. Among these, a radiation shielding device 200 made of lead glass replaces traditional lead plates, reducing the weight of the equipment while achieving transparency and visibility, allowing the operator to observe the radiation source and the state of the object being detected, while providing radiation protection. Composite shielding materials can further achieve the purpose of lightweighting and easy folding and storage, but the cost is relatively high. In actual use, different materials can be selected as shielding devices according to requirements.

[0049] In an optional embodiment, the transmission imaging system provided in this example further includes a handbrake 300, which is communicatively connected to the radiation source 400 and used to control the opening and closing of the radiation source 400, ensuring synchronization between exposure and detector reception and reducing image acquisition delay. Optionally, the handbrake 300 can be installed on the radiation shielding device 200, controlling the opening and closing of the radiation source 400 via a wired connection, providing intuitive and reliable operation and avoiding the risk of accidental activation. Optionally, the handbrake 300 can also be a wireless Bluetooth or infrared remote control handbrake, increasing the flexibility of the operating distance. Furthermore, the handbrake 300 can also integrate a foot switch, freeing the operator's hands.

[0050] In an optional embodiment, the operation terminal 100 includes a display screen, which is used to receive and display digital signals from the flat panel detector 800 to display the transmission image of the object to be detected in real time, so as to facilitate rapid on-site analysis of the detection results.

[0051] The working process and principle of the projection imaging system provided in this embodiment are as follows: The radiation source 400, the object to be detected, and the flat panel detector 800 are on the same horizontal axis. The operating terminal 100 controls the radiation source 400 to generate cone-shaped X-rays by opening the handbrake 300. The radiation source 400 is installed on the lifting device 500. The laser profiler on the beam outlet of the radiation source 400 indicates the field of view of the X-rays and confirms the effective placement position of the flat panel detector 800. The radiation source 400 only serves as a X-ray generating device and does not interact or communicate with other subsystems. After the housing 600 is opened, the angle between the cover plate 620 and the main body 610 is a right angle. The cover plate 620 serves as a fixing structure for the flat panel detector 800, reducing the installation of the equipment. The base 630 set on the main body 610 serves as a placement platform for the object to be detected, ensuring that the object to be detected is within the effective imaging area of ​​the flat panel detector 800. It can be used immediately after opening the housing. In the entire portable transmission imaging system, the flat panel detector 800 communicates with the external tablet computer via a wireless network. The flat panel detector 800 uses automatic exposure sensing technology (AED) to interconnect with the radiation source 400. After the operator at the control terminal 100 presses the handbrake 300, the radiation source 400 generates X-rays. The flat panel detector 800 receives the X-rays, automatically enters the exposure window, generates a transmission image, and transmits the image wirelessly to the operator's tablet computer, where it is displayed on the software interface. A radiation shielding device 200 is placed between the radiation source 400 and the control terminal 100 to absorb scattered radiation and prevent the operator from being exposed to it.

[0052] In summary, the transmission imaging system provided in this application is simple to assemble and disassemble, portable, and achieves rapid, high-resolution imaging through a cone-beam X-ray source and detector. It also utilizes the wireless capability of the flat panel detector to upload the transmission images to a software display interface on a tablet computer. This system can be quickly installed and disassembled in different locations, offering flexible use without environmental limitations, thus improving the detection efficiency of targets and the utilization rate of the equipment. The packaging box serves multiple purposes, acting as both a tool for packaging and transporting the entire portable transmission imaging system and a detection platform for placing the object to be inspected. The platform height can be adjusted via built-in foam pads to ensure that objects of different sizes are centered on the detector and aligned horizontally with the radiation source and flat panel detector. Therefore, this application effectively overcomes the various shortcomings of existing technologies and possesses high industrial applicability.

[0053] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A transmission imaging system, characterized in that, include: The box (600) includes a body (610) and a cover plate (620) that can be rotatably opened and closed relative to the body (610). The box (600) is provided with a base (630), which divides the internal space of the box into a first accommodating part and a second accommodating part that are adjacent to each other. The base (630) is used to place the object to be tested. A flat panel detector (800) is disposed on the inner surface of the cover plate (620). When the cover plate (620) is opened, the radiation source (400), the object to be detected and the flat panel detector (800) are located on the same straight line. The radiation emitted by the radiation source (400) passes through the object to be detected and is received by the flat panel detector (800).

2. The transmission imaging system according to claim 1, characterized in that, It also includes a radiation shielding device (200) located between the operating end (100) and the radiation source (400).

3. The transmission imaging system according to claim 2, characterized in that, It also includes a handbrake (300), which is communicatively connected to the radiation source and is used to control the opening and closing of the radiation source.

4. The transmission imaging system according to claim 1, characterized in that, The flat panel detector (800) is mounted on the inner surface of the cover plate (620) via a quick-release structure (700).

5. The transmission imaging system according to claim 4, characterized in that, The quick-release structure (700) includes a fixing member (710) disposed on the cover plate (620) and a pressure plate (730) for locking the flat panel detector (800). The pressure plate (730) is rotatably connected to the fixing member (710) via a connector (720).

6. The transmission imaging system according to claim 1, characterized in that, A support structure (500) is provided inside the box (600). The two ends of the support structure (500) are respectively provided on the body (610) and the cover plate (620). When the cover plate (620) is opened, it supports and positions the cover plate (620).

7. The transmission imaging system according to claim 2, characterized in that, The operating terminal (100) includes a display screen for receiving and displaying digital signals from the flat panel detector (800) to display a transmission image of the object to be detected.

8. The transmission imaging system according to claim 1, characterized in that, It also includes a lifting device (500) for carrying the radiation source (400) and adjusting the radiation emission height of the radiation source (400).

9. The transmission imaging system according to claim 1, characterized in that, The base (630) is also equipped with a height adjustment mechanism for adjusting the height of the object to be detected.

10. The transmission imaging system according to claim 1, characterized in that, A profiler lamp is installed at the exit port of the radiation source (400). The profiler lamp has the same angle and focal point as the exit port of the radiation source and is used to indicate the field of view of the radiation.

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