200 results about "Flat panel detector" patented technology

The embodiment of the invention discloses a flat panel detector positioning method, device, system and equipment and a medium, and the method comprises the steps: obtaining an image, collected by an image collection device, of a flat panel detector, and determining the pixel coordinates of a feature mark and a feature point in the image through a positioning model; determining first position attitude information and confidence coefficient according to the pixel coordinates, the internal reference matrix and the physical coordinates of the feature points; according to the confidence coefficient and a preset threshold value, the first position and attitude information is determined to serve as positioning information, or the second position and attitude information is determined to serve as the positioning information, and the second position and attitude information is determined according to the motion state information obtained by the inertial sensor. According to the technical scheme of the embodiment of the invention, the problems of large size and high cost of the flat panel detector positioned by the existing magnetic positioning device are solved, the positioning cost of the flat panel detector can be reduced and the positioning reliability and portability can be improved by combining the positioning mode of visual detection and the inertial sensor, and the method can adapt to different scenes.

The invention discloses an X-ray tomography in-situ testing device and method suitable for a seawater high-pressure environment. The X-ray tomography in-situ testing device comprises an X-ray source, a collimator, a flat panel detector, a seawater pressure cabin and a seawater pressure control device. During detection, the X-ray source is started, the sample is started to move spirally, the flat panel detector collects projection data, then a cross-sectional image is reconstructed through an existing method, and the X-ray tomography in-situ test of the sample in the seawater high-pressure environment is achieved. In order to solve the problems that a seawater in-situ detection device in the prior art is insufficient in penetrating power, low in resolution ratio, limited in sample movement freedom degree and poor in high-pressure environment adaptability, the invention discloses an X-ray tomography device and method, and in-situ dynamic imaging can be carried out on a large component in a seawater high-pressure environment. In-situ observation of micron-sized damage and defects (100-200 microns) is realized, and meanwhile, an imaging view field is expanded through a multi-degree-of-freedom sample table and a spiral scanning method, so that the detection efficiency is improved.

The invention discloses a dual-energy ray bone mineral density evaluation method based on a flat panel detector, and relates to the technical field of ray evaluation. Through a direct conversion mode of the flat panel detector, high-precision acquisition of low-energy and high-energy ray images is realized, and noise and resolution loss caused by traditional indirect imaging are remarkably reduced; primary correction and secondary correction are completed in the edge calculation nodes, so that the problems of discontinuous gray scale and distorted energy ratio of the boundary area of the skeleton and the soft tissue are effectively solved, and the authenticity of the image boundary is improved; and dynamic smoothing processing of the energy ratio is further combined to obtain a stable ratio image, so that the stability and repeatability of bone mineral density measurement are remarkably enhanced, and more accurate bone mineral density evaluation is realized.

The invention relates to the technical field of cone-beam computed tomography, and discloses a scattering correction method and system for cone-beam computed tomography. The method comprises the following steps: acquiring original projection data and main scattering data acquired by a first flat panel detector; wherein the first flat panel detector is arranged in the emission direction of the radiation source; acquiring secondary scattering data acquired by a second flat panel detector; wherein the second flat panel detector is arranged in the scattering direction of the radiation source; determining target projection data based on the original projection data, the main scattering data and the auxiliary scattering data; the target projection data is used for cone beam computed tomography imaging. According to the method, scattering correction can be completed on the premise of not depending on special hardware, not additionally increasing radiation dose and not losing imaging view, and the imaging precision can be effectively improved.

The utility model discloses an ankle X-ray photography auxiliary device, and relates to the technical field of medical instruments. The ankle X-ray photography auxiliary device comprises a detection table and a side mounting frame, a first placement groove is formed below the detection table; the side mounting frame is arranged on the side edge of the detection table, and a second placement groove is formed in the side mounting frame; the first placing groove and the second placing groove are used for placing flat panel detectors. When the flat panel detector is placed in the first placing groove, the flat panel detector is parallel to the upper supporting surface; when the flat panel detector is placed in the second placing groove, the flat panel detector is obliquely arranged relative to the vertical plane; according to the ankle X-ray photography auxiliary device provided by the utility model, the flat panel detectors are placed in different placing grooves, and the bulb tubes capable of emitting X-rays are correspondingly arranged, so that X-ray photography can be conveniently carried out on the ankle of a patient from multiple angles and directions when the patient stands on a detection table, and the operation is convenient.

The utility model relates to the technical field of nondestructive testing, and provides an auxiliary detection device for x-ray equipment, which comprises a mounting shell, a conveying mechanism is arranged in the mounting shell, a lifting mechanism is jointly arranged on two sides of the inner wall of the mounting shell, and a plurality of rectangular pipes are sequentially and fixedly mounted at the top of the lifting mechanism from left to right. A first motor drives a double-groove synchronous wheel to rotate, a plurality of conveying rollers are driven by a synchronous belt to rotate in a mounting shell and used for conveying a round pipe needing to be detected, and when the round pipe is conveyed to the position above an arc-shaped shell, a second motor drives a screw rod to rotate in a sliding groove plate, so that the round pipe is conveyed to the position above the arc-shaped shell. The linkage sliding block slides in the sliding groove plate, so that the supporting plate ascends and descends upwards and is used for lifting and supporting the round pipe conveyed on the conveying rollers upwards, the rolling wheels are driven by the motor to rotate, the supported round pipe is rotated, and the detection efficiency of the X-ray emitter and the flat panel detector on the round pipe is effectively improved.

The invention provides an X-ray flat panel detector and a preparation method of the X-ray flat panel detector. The X-ray flat panel detector comprises a substrate, a readout circuit layer located on the substrate, an insulating grid layer located on the side, away from the substrate, of the readout circuit layer, a first charge transmission layer located on the side, away from the substrate, of the readout circuit layer, and a perovskite material layer located on the side, away from the substrate, of the first charge transmission layer. The second charge transfer layer is located on one side, away from the substrate, of the perovskite material layer; and the top electrode layer is located on one side, away from the substrate, of the second charge transfer layer. The readout circuit comprises a plurality of pixel units. The insulating grid layer comprises a plurality of meshes, and the orthographic projection of each pixel unit on the substrate is located in the orthographic projection of one mesh on the substrate. The first charge transport layer is filled in the meshes of the insulating grid layer. And the perovskite material layer is filled in the meshes of the insulating grid layer. The X-ray flat panel detector provided by the invention has relatively high image resolution, image contrast and definition.

The invention relates to the technical field of detection devices, in particular to an inclined X-ray horizontal detection device. Comprising a detection lead room and an auxiliary assembly, the auxiliary assembly comprises a detection frame, a ray source, a flat panel detector, a rotary disc, a high-precision rotary bearing, a servo motor, a transmission synchronous belt, a conveying component, a mounting component and a fixing component, the ray source is started when a workpiece is conveyed to a designated position, and when the ray source and the flat panel detector move to a designated angle, a PLC sends out an instruction; the flat panel detector starts to acquire images and performs acquisition while rotating, the servo motor acts to drive the synchronous wheel to rotate, high-precision rotation of the pivotal bearing is realized under the action of the transmission synchronous belt, the radiation source and the flat panel detector can rotate 360 degrees around a workpiece to acquire images, and the acquired images are accurately matched with circumferential rotation movement. According to the X-ray detection device, the number of pictures collected at each angle is consistent, so that the X-ray detection device can be inclined by 15 degrees, the ray penetration path can be reduced, the energy attenuation can be reduced, and the image quality can be improved.

This invention discloses an industrial material inspection method and system based on feature extraction and contrast enhancement, belonging to the field of image inspection technology. It includes: S1, acquiring the transmitted signal using a digital flat panel detector and generating an original digital image based on the differences in X-ray absorption by different materials or defects; S2, performing uniformity correction and normalization enhancement on the original digital image, and achieving preliminary differentiation of different material regions; S3, dividing the original image data into processing domains based on the preliminary differentiation results, and performing differentiated enhancement processing based on the local feature attributes of each processing domain to generate a binary feature image. By integrating X-ray penetration imaging, multi-dimensional image enhancement, and a deep learning-driven intelligent rating system, this invention fundamentally solves the key technical bottlenecks in traditional industrial material inspection, such as inconsistent image quality, lack of material identification, and strong subjectivity in rating, achieving an automated, intelligent, and objective upgrade in industrial material defect detection.

This utility model discloses a vehicle-mounted X-ray whole-body imaging device, including a main frame, a sub-frame, an X-ray tube assembly, and a rectangular flat panel detector. The flat panel detector is mounted on the sub-frame, and the X-ray tube assembly is mounted on the main frame. The side of the flat panel detector closest to the X-ray tube assembly is the receiving surface. The X-ray tube assembly is rotatable about a direction perpendicular to the receiving surface. This vehicle-mounted X-ray whole-body imaging device uses a rectangular flat panel detector, which facilitates large-scale, rapid whole-body exposure imaging by doctors. The X-ray tube assembly can be rotated as needed, facilitating doctors to position the device at different angles for imaging. Using the X-ray tube assembly horizontally shortens the distance required for normal imaging by the flat panel detector, thereby reducing the horizontal space occupied by this vehicle-mounted X-ray whole-body imaging device. Rotating the X-ray tube assembly to a vertical position reduces the risk of damage to the rotating anode due to vibration.

The utility model discloses a portable DR used multi-specification flat panel detector storage structure, comprising a flat panel inner side housing and a flat panel outer side housing, the flat panel outer side housing is detachably installed on the flat panel inner side housing, and the flat panel outer side housing is provided with an adjusting assembly capable of adjusting the width of a placing groove opening of the flat panel outer side housing.

According to the technical scheme, system hardware is composed of a micro-focus ray source, a flat panel detector, a motion platform and a multi-ball standard part (forest ball array), and high-precision data acquisition and processing are achieved in combination with a multi-physics field sensing module and a parallel computing unit. The method comprises the steps of optimizing CT image preprocessing by using an adaptive denoising and hybrid segmentation algorithm, improving the point cloud precision by using a weighted covariance matrix and a dynamic error compensation model, and rapidly extracting a sphere center coordinate through a robust sphere fitting algorithm. In addition, a thermal-mechanical coupling compensation and spinor theory error transfer mechanism is introduced, and the environment temperature and mechanical motion errors are effectively restrained. According to the method, the calibration time is remarkably shortened, the positioning precision is improved to the micron level, the stability of the system in a complex noise and temperature change scene is enhanced, and the method is suitable for efficient microscopic CT system calibration in the precision manufacturing field.

The utility model discloses a shell of an X-ray flat panel detector. The shell comprises two brackets (12), a connecting unit (14) and a sensor mounting part (16), each of the two brackets includes a front end, a rear end, and a body (122) interposed between the front end and the rear end in a direction parallel to a width direction (W) of the X-ray flat panel detector. The body is used for accommodating the side edge of the X-ray flat panel detector. The connecting unit is connected with the two supports, and the connecting unit and the two supports form a containing space to contain the X-ray flat panel detector. The sensor mounting part is arranged on any one of the two brackets and is used for accommodating the positioning sensor; the positioning sensor is used for positioning the X-ray flat panel detector. According to the shell of the X-ray flat panel detector, the position of the X-ray flat panel detector can be accurately positioned, and the X-ray imaging quality is improved. The utility model further provides a detector assembly comprising the shell and a medical imaging system comprising the detector assembly.

The invention discloses a flat panel detector and a method and device for using the flat panel detector. A flat panel detector is constructed on the basis of an amorphous silicon substrate on which a hexagonal pixel pattern is uniformly laid. The hexagonal pixels can be arranged more closely on a two-dimensional plane, and gaps among the pixels are reduced, so that a photosensitive area is maximized with a relatively high filling rate, and the spatial resolution of the detector is improved. And the hexagonal pixels enable a frequency space to generate an angle of 60 degrees, so that the influence of grid artifacts is reduced to a certain extent. Meanwhile, the hexagonal pixel array is effectively processed and optimized by adopting an image reconstruction algorithm, the signal-to-noise ratio of the single pixel of the flat panel detector is improved, and the definition and accuracy of the image are improved.

The utility model discloses a punching machine for punching a COF (chip on film) reading chip of a flat panel detector, which comprises a working table, a transferring mechanism is arranged on the working table, a punching lower die is arranged on the transferring mechanism, a blanking port of a chip is arranged on the punching lower die, and a positioning component for positioning a punching part is further arranged on the punching lower die. A chip on a stamping part is completely stamped into a discharging box through a pressing head on the stamping upper die, automatic stamping of the chip is achieved, meanwhile, the stamping efficiency is high, an operator only needs to align a positioning identification hole in the stamping part with a stamping hole, and the stamping upper die is arranged above the stamping lower die in a vertically-displaceable mode. And therefore, the automatic punching device is simple to operate.

This invention relates to a digital radiographic inspection method and apparatus for wind turbine blades, belonging to the field of wind turbine blade inspection technology. The method includes: placing and fixing the turbine blade on a blade fixture; mounting the X-ray machine on the X-ray machine fixture; defining a detection grid in the inspection area of ​​the turbine blade; tightly attaching and fixing the X-ray flat panel detector to the turbine blade; and sequentially inspecting each grid of the turbine blade according to the detection grid. This invention, through the combination of the blade fixture, the X-ray machine fixture, the X-ray machine, and the X-ray flat panel detector, constitutes a digital radiographic inspection apparatus for turbine blades. This apparatus enables the detection of defects in wind turbine blades. The inspection method of this invention is simple and rapid; the inspection images obtained by this invention can clearly and accurately identify defects in wind turbine blades, with a defect detection rate of 100%.

A method of manufacturing a pouched product 10 containing a dose of powdered material and an object is disclosed. The powdered material and the object are supplied to an interior volume of a partially-formed pouch formed by a substantially continuous pouch material. The pouch material is then sealed to create the pouched product. An x-ray image of the pouch is obtained to determine one or more of: the presence or absence of the powder and / or object within the pouched product, the quantity of powder and / or objects within the pouched product, the location of the powder and / or object within the pouched product, the condition of the powder and / or object and / or pouch material, and the presence or absence of a foreign object within the pouched product. The image is obtained using an x-ray source 200 and a flat panel detector 220 or a linear detector 320. The pouched product is rejected if the powder and / or object is absent from the pouched product, or if a foreign object is present within the pouched product, or if the quantity of powder within the pouched product does not meet a threshold quantity. If the object is a capsule containing a liquid, the pouched product is rejected if the capsule is in a burst condition or if the powder is wet.

The invention discloses an automatic matching method for a working position of an X-ray machine and a flat panel detector, and relates to the technical field of radiographic imagines.The method comprises the steps that pet struggling features are recognized in real time through a motion state classification model, a compensation mechanism is triggered before displacement occurs, and matching delay caused by passive response in the prior art is avoided; the working position of the X-ray machine can synchronously track the position of the detector to ensure that an imaging area accurately covers a key anatomical structure; when the displacement is overtime, the system automatically stops exposure and reversely calibrates the position based on the anatomical mark point; an operator does not need to interrupt flow manual calibration, the repeated exposure risk of the pet is reduced, and the diagnosis and treatment efficiency is improved; the influence of equipment vibration and operation jitter is suppressed by gravity compensation and smooth filtering, and the displacement prediction model is compatible with motion characteristics of pets with different body types; in a narrow clinic or multi-pet assembly line scene, the matching stability is kept; an autonomous decision closed loop is formed from data acquisition, state judgment, real-time tracking to abnormal calibration.

The invention discloses an X-ray photography system and a detection bed, the detection bed comprises a base, a bearing platform and a first mounting part, the first mounting part is mounted on the base or the bearing platform, the first mounting part comprises a fixed frame and a movable frame, the movable frame can move to be hidden below the bearing platform, and the movable frame can also move to be exposed out of the outer side of the bearing platform in the front-back direction. Due to the fact that the detection bed is provided with the first installation part, the first installation part can be used for installing the flat panel detector on the outer side of the bearing platform, and accurate photographing and imaging can be conducted on a patient lying on the side; moreover, the first mounting part can move in the front-back direction relative to the bearing platform to be exposed and hidden relative to the bearing platform, so that the first mounting part can be exposed to mount the flat panel detector, and camera imaging of the patient in the lateral position is realized; when a patient is shot and imaged under other conditions, the first mounting part can be hidden below the bearing platform, so that hidden storage is realized, and the occupied space is reduced.

The application discloses an image processing method, device, equipment, medium and product. The image processing method comprises the following steps: acquiring an original image collected by a flat panel detector and a dose area product value used when the original image is collected; correcting and processing a correction image by using a shift correction table, a gain correction coefficient table and a bad detector correction table to obtain a corrected image; performing conversion processing on the dose area product value to generate a maximum value of flat panel detector incident intensity count; and performing restoration and global enhancement processing on the corrected image based on the maximum value of flat panel detector incident intensity count to obtain a target image. According to the embodiment of the application, the flat panel detector image correction process can be simplified and the image quality can be improved.

The invention discloses a flat panel detector and an X-ray imaging system, the flat panel detector comprises a scintillator layer, an image sensor layer and a displacement composite layer, the scintillator layer is used for converting X-rays into visible light, the image sensor layer is provided with a plurality of photoelectric sensors in an array, the photoelectric sensors are used for receiving the visible light, and the displacement composite layer is used for detecting the X-rays. The visible light is converted into an electric signal; the graphic sensor layer comprises a plurality of pixel regions, each pixel region comprises a photosensitive region and a non-photosensitive region, and the photoelectric sensor is arranged in the photosensitive region; the displacement composite layer is arranged between the scintillator layer and the image sensor layer, and the displacement composite layer is used for displacing under the control of an electric signal, so that visible light entering the non-photosensitive area is displaced and then enters the photosensitive area. According to the invention, the displacement composite layer is arranged to refract the visible light emitted into the non-photosensitive area into the photosensitive area, so that the detection accuracy is improved.

The invention provides a CT imaging control method and a CT imaging control system, and relates to the technical field of medical imaging. By introducing the double X-ray sources and the two flat panel detectors and combining with the 3D optical camera to obtain breathing signals of a patient, CT imaging of the patient in a free breathing state is achieved. In the scanning process, based on real-time breathing signals, the two X-ray sources are triggered in sequence at different rotation angles for exposure, and the double-angle projection data obtained by the corresponding flat panel detectors are read. And reconstructing an organ mask image sequence from the double-angle projection data by using a pre-trained deep neural network, further analyzing the sequence to quantify the amplitude and phase of respiratory movement, distributing respiratory phase values for the projection data with different rotation angles, and classifying the respiratory phase values as gating data frames. And performing image reconstruction on each gating data frame to obtain four-dimensional CT images of different breathing phases. The problem of motion artifacts of the CT image in the free breathing state is solved, so that the image quality and the diagnosis accuracy are improved.

The application discloses a kind of X-ray flat panel detector timing synchronization and correction method and system, image is acquired by flat panel detector;By timing control module, the main synchronization pulse is sent to the synchronization interface of flat panel detector on one hand, the working frequency of flat panel detector is controlled;On the other hand, the exposure window pulse returned by flat panel detector is frequency-division;After frequency-division, the secondary synchronization pulse is given to high voltage generator interface to control X-ray beam exposure;Image property is marked according to the pulse controlled by timing control module and the setting of frequency-division in the image acquired by flat panel detector in the above step 1;According to the strategy set, dark-field image multi-frame average or recursive average is carried out, and real-time offset correction data is generated.The offset correction data of the application is updated in real time, and does not need to be generated in advance, which greatly simplifies the generation mode of other correction files, solves the contradiction between the real-time application and the image quality of the equipment, and also provides a solution for variable frequency acquisition.

The invention discloses an X-ray imaging device and an X-ray receiving device, the X-ray receiving device comprises a support device and a film box assembly, and the support device is configured to be a vertical support device. The film box assembly is connected to the support device, and a flat panel detector is arranged in the film box assembly and used for receiving X-rays and generating electric signals. The wafer box assembly can move along a first movement path, the first movement path of the wafer box assembly has a displacement component in the transverse movement direction, and the transverse movement direction is perpendicular to the vertical direction and parallel to the wafer box assembly. When the to-be-detected person is subjected to X-ray inspection, the film magazine assembly can move along the first movement path, so that the film magazine assembly generates a displacement component in the transverse movement direction, more image information of the to-be-detected person in the transverse movement direction can be obtained, and subsequent image splicing is facilitated to obtain a complete image of the to-be-detected person in the transverse movement direction.

The application discloses a dual-energy ray bone density evaluation method based on a flat panel detector and relates to the technical field of ray evaluation.The direct conversion mode of the flat panel detector is used to realize high-precision collection of low-energy and high-energy ray images, and noise and resolution loss caused by traditional indirect imaging are significantly reduced;one-time and two-time corrections are completed in an edge computing node, the problem of gray scale discontinuity and energy ratio distortion in the joint area of bones and soft tissues is effectively solved, and the authenticity of the image boundary is improved;further dynamic smoothing processing of the energy ratio is combined to obtain a stable ratio image, the stability and repeatability of bone density measurement are significantly enhanced, and more accurate bone density evaluation is realized.

The application discloses a method for imaging airtight inner cavity of an aero-engine by using a low-cost positron emission tomography device with good imaging quality, and the gamma photon detection mechanism of the positron emission tomography device comprises an embedded rotary flat plate detection device and a ring-shaped detection device; the ring-shaped detection device comprises a cylindrical mounting frame, and the inner wall of the cylindrical mounting frame is covered with second gamma photon detection crystals; the embedded rotary flat plate detection device comprises a mounting flat plate and a driving device for driving the mounting flat plate to rotate around the central axis of the ring-shaped detection device, and the mounting flat plate is provided with a plurality of first gamma photon detection crystals; the central angle of the cylindrical mounting frame corresponding to the first gamma photon detection crystals of the first detection crystal array is 60-90 degrees; and the diameter of the second detection crystal array is 1.6-2.6 times the distance between the first detection crystal array and the central axis of the ring-shaped detection device.

A flat panel detector and an imaging system are provided. The flat panel detector includes a plurality of pixel units which include photosensitive pixel units and alignment pixel units. Each photosensitive pixel unit includes a photoelectric sensor configured to convert an incident light into an electrical signal so that a photosensitive pixel unit in which the photoelectric sensor is located has a grayscale that changes according to a real-time change of the incident light. Each alignment pixel unit is configured to have a fixed grayscale, and the fixed grayscale does not change according to the real-time change of the incident light. The alignment pixel units includes first alignment pixel units and second alignment pixel units. Each first alignment pixel unit has a first fixed grayscale, each second alignment pixel unit has a second fixed grayscale different from the first fixed grayscale.

The invention discloses a super-miniaturized two-dimensional and three-dimensional X-ray imaging system special for animals, and relates to the field of X-ray two-dimensional and three-dimensional imaging. Comprising an X-ray source assembly, a flat panel detector, an animal bed, a breathing anesthetic gas conversion connector and a control module. The X-ray source assembly and the flat panel detector are oppositely arranged on the rack to form a basic imaging unit; the animal bed comprises a rotating mechanism which is arranged between the X-ray source assembly and the flat panel detector; the breathing anesthetic gas conversion connector is arranged to be of a structure with a 360-degree full rotation function. And the control module executes a preset program through the computer equipment, and selects an adaptive scanning mode according to different animal types so as to realize two-dimensional or three-dimensional imaging. Through the compact energy-saving design, the efficient three-dimensional imaging technology and the structure for guaranteeing animal safety, high-precision diagnosis is achieved, space is saved, and safety and comfort of animals in the imaging process are guaranteed.

The invention discloses a CBCT (cone beam computed tomography) device based on a general image sensor. The CBCT device comprises a main control computer, a bracket, a rotary suspension arm, a cone beam X-ray source and an imaging part, the imaging part is composed of a scintillator, a plane mirror and a zoom camera. The cone-beam X-ray penetrates through a measured object and irradiates the scintillator, and the scintillator converts an energy signal carried by the X-ray into a visible light signal. And after the visible light signal is reflected by the plane mirror, a light path deflects by 90 degrees, and is imaged on an image sensor of the zoom camera through the lens. The provided CBCT device uses a general image sensor which is higher in resolution, lower in noise level and lower in cost compared with an existing flat panel detector. In addition, the circuit part of the imaging part is prevented from being irradiated by X-rays, so that the service life is greatly prolonged. Besides, the view field range of the camera on the scintillator can be changed by changing the focal length, meanwhile, the spatial resolution capability of the CBCT device is changed, and the configuration flexibility of the CBCT device can be greatly improved.

This invention relates to the field of X-ray machine technology, and in particular to a flat panel detector for a portable X-ray machine. It includes a lifting mechanism mounted on a movable base; a first mounting frame with a motor drive mechanism and a second mounting frame, the second mounting frame being driven to rotate vertically via the motor drive mechanism; an emitter and a detector plate mounted on the second mounting frame; protective components mounted on both sides of the detector plate; and a trigger component mounted on the detector plate. When the detector plate is parallel to the bed board, the lifting mechanism raises and lowers the trigger component to abut against the bed board, generating compressed air to make the protective component perpendicular to the detector plate. This invention allows for selection of a suitable imaging method based on the patient's physical condition; the protective components protect patients with thoracic cavities, facilitating safe imaging; furthermore, this invention allows for air cleaning of the detector plate surface when the protective component is reset, removing impurities and improving the accuracy of the examination.