CT detectors, temperature control systems, and CT scanning equipment

Abstract

This application relates to a CT detector, a temperature control system, and a CT scanning device. The CT detector includes a scintillator, a photoelectric conversion module, an ADC module, a heat-conducting component, and a heating element. The heat-conducting component, ADC module, photoelectric conversion module, and scintillator are stacked sequentially from bottom to top. The heat-conducting component is made of a thermally conductive material, and the heating element is positioned in contact with the heat-conducting component to heat the scintillator, photoelectric conversion module, and ADC module. The CT detector provided in this application integrates the heating element within the heat-conducting component. When the CT detector needs preheating, activating the heating element conducts heat to the scintillator, photoelectric conversion module, ADC module, and heat-conducting component, shortening the heat transfer path, improving heating efficiency, reducing heat loss, increasing the temperature rise response speed of the CT detector, and reducing preheating time and heating power consumption.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a CT detector, a temperature control system, and a CT scanning device. Background Technology

[0002] In CT (Computed Tomography) detectors, the scintillator, photoelectric conversion module, and ADC (Analog-to-Digital Converter) module are particularly sensitive to temperature fluctuations. Temperature changes can alter the luminous efficiency of the scintillator crystal. When a CT detector has been shut down for an extended period, if the overall temperature of the detector drops below 15°C, the response characteristics of the scintillator crystal will shift. Therefore, preheating is necessary to bring the CT detector back to its normal operating temperature range (typically 20°C to 25°C).

[0003] Please see Figure 1 In existing CT equipment, the heating element 100 is typically mounted on the guide rail 200. The gantry, which houses multiple CT detectors, can rotate relative to the guide rail 200 around the scanning bed, allowing X-ray beams to penetrate the human body from different angles. The CT detector array synchronously receives signals, providing multi-angle data for image reconstruction. During preheating of the CT detectors, the heating element 100 is activated, raising the temperature of the guide rail 200. The heat is then transferred through the guide rail 200 to the gantry housing the CT detectors, and subsequently through the gantry to the scintillator, photoelectric conversion module, and ADC module of the CT detectors.

[0004] During the preheating process described above, since the heating element 100 is located on the guide rail 200, the heat transfer distance between it and the CT detector is relatively far. The guide rail 200 then conducts heat through the air and the structure to raise the temperature of the gantry and the mounting cavity on the gantry used to install the CT detector, ultimately raising the temperature of the CT detector itself. This process not only results in a long heating time and slow response, but also in a heating speed that is limited by the heat transfer efficiency of the air and the structural components, leading to a significant heat loss and high power consumption during the heating process. Utility Model Content

[0005] This application provides a CT detector, a temperature control system, and a CT scanning device to solve the technical problems of long warm-up time, slow response, and high power consumption in existing CT scanning devices.

[0006] In a first aspect, this application provides a CT detector, including a scintillator, a photoelectric conversion module, an ADC module, a heat-conducting component, and a heating element, wherein the heat-conducting component, the ADC module, the photoelectric conversion module, and the scintillator are stacked sequentially from bottom to top;

[0007] The heat-conducting component is made of thermally conductive material, and the heating element is placed on the heat-conducting component to heat the scintillator, photoelectric conversion module and ADC module.

[0008] Optionally, the heating element is sandwiched between the ADC module and the thermally conductive component.

[0009] Optionally, the ADC module includes a mounting block and a first flexible circuit board, the first flexible circuit board covering the outer surface of the mounting block, and the mounting block is made of a thermally conductive material.

[0010] The heating element is sandwiched between the first flexible circuit board and the heat-conducting component.

[0011] Optionally, the heat-conducting component includes a first heat-conducting element and a second heat-conducting element, with a heating element sandwiched between the first heat-conducting element and the second heat-conducting element.

[0012] Optionally, the heat-conducting component includes a first heat-conducting element and a second heat-conducting element, wherein the second heat-conducting element is located on the side of the first heat-conducting element away from the ADC module, and the heating element is attached to the surface of the second heat-conducting element on the side away from the first heat-conducting element.

[0013] Optionally, the projected area of ​​the heating element along the height direction is less than or equal to the projected area of ​​the scintillator.

[0014] Optionally, thermal grease may be used to fill the contact surface between the heating element and the thermally conductive component.

[0015] Secondly, this application provides a temperature control system, including a CT detector provided in the first aspect of this application; it also includes a control component and a detection component, the detection component including multiple temperature sensors, the multiple temperature sensors being configured corresponding to multiple CT detectors for detecting the temperature of the multiple CT detectors, and the control component being signal-connected to the detection component and the heating element respectively.

[0016] Optionally, the temperature control system also includes a fan assembly, and the control component is signal-connected to the fan assembly.

[0017] Thirdly, this application provides a CT scanning device, including the CT detector provided in the first aspect of this application;

[0018] Alternatively, it could include the temperature control system provided in the second aspect of this application.

[0019] The technical solutions provided in this application have the following advantages compared with the prior art:

[0020] The CT detector provided in this embodiment stacks the heat-conducting component, ADC module, photoelectric conversion module, and scintillator sequentially from bottom to top, ensuring close contact for heat conduction. Simultaneously, a heating element is placed in contact with the heat-conducting component, integrating it within the CT detector to heat the scintillator, photoelectric conversion module, and ADC module. When the CT detector needs preheating, activating the heating element directly conducts heat to the scintillator, photoelectric conversion module, ADC module, and heat-conducting component. This more direct heating of these components shortens the heat transfer path, reduces external environmental interference with temperature changes, improves heating efficiency, reduces heat loss, enhances the CT detector's temperature rise response speed, and reduces preheating time and heating power consumption.

[0021] The temperature control system and CT scanning equipment provided in this application include the aforementioned CT detector. The scintillator, photoelectric conversion module and ADC module can be preheated directly through the heating element. Therefore, it naturally possesses the technical effects of the aforementioned CT detector. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0025] Figure 1 The heating structure for CT detectors in existing technology;

[0026] Figure 2 This is a schematic diagram of the structure of the CT detector provided in the embodiments of this application;

[0027] Figure 3 This is a partial structural schematic diagram of the CT detector provided in an embodiment of this application;

[0028] Figure 4 A cross-section of a CT detector provided in an embodiment of this application. Figure 1 ;

[0029] Figure 5 A cross-section of a CT detector provided in an embodiment of this application. Figure 2 ;

[0030] Figure 6 A cross-section of a CT detector provided in an embodiment of this application. Figure 3 ;

[0031] Figure 7 Provided for the embodiments of this application Figure 3 A magnified view of a local detail;

[0032] Figure 8 The control principle diagram of the temperature control system provided in the embodiment of this application is shown.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Scintillator;

[0035] 2. Photoelectric conversion module;

[0036] 3. ADC module; 31. Mounting block; 32. First flexible circuit board;

[0037] 4. Thermal conductive components; 41. First thermal conductive element; 42. Second thermal conductive element;

[0038] 5. Heating element;

[0039] 6. Control components;

[0040] 7. Detection components;

[0041] 8. Fan assembly;

[0042] 9. Second flexible circuit board; 91. Solder pad;

[0043] 10. Circuit board connectors;

[0044] 100. Heating element; 200. Guide rail. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0047] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0048] To address the technical problems of long preheating time, slow response, and high power consumption in existing CT scanning equipment, this application provides a CT detector, a temperature control system, and a CT scanning device. The CT detector integrates the heating element 5 inside the detector, which can significantly shorten the heat conduction path and more directly heat the scintillator 1, photoelectric conversion module 2, and ADC module 3. This improves heating efficiency, reduces heat loss, and avoids the problems of long heating time, slow response, and high power consumption in CT detectors.

[0049] Please see Figures 2 to 8 The first aspect of this application provides a CT detector, including a scintillator 1, a photoelectric conversion module 2, an ADC module 3, a heat-conducting component 4, and a heating element 5. The heat-conducting component 4, the ADC module 3, the photoelectric conversion module 2, and the scintillator 1 are stacked sequentially from bottom to top, ensuring close contact between the four components to facilitate heat conduction. Figure 2 and Figure 3 As shown.

[0050] The heat-conducting component 4 is made of a thermally conductive material, enabling efficient heat transfer and facilitating precise temperature control of the scintillator 1, photoelectric conversion module 2, and ADC module 3 within the CT detector. A heating element 5 is positioned on the heat-conducting component 4 for integrated installation within the CT detector, used to heat the scintillator 1, photoelectric conversion module 2, and ADC module 3.

[0051] When the CT detector needs to be preheated, turning on the heating element 5 will conduct heat to the scintillator 1, photoelectric conversion module 2, ADC module 3 and heat conduction component 4. This allows for more direct heating of the scintillator 1, photoelectric conversion module 2 and ADC module 3, shortens the heat transfer path, reduces interference from the external environment on the temperature changes of the CT detector, improves heating efficiency, reduces heat loss, improves the temperature rise response speed of the CT detector, and reduces preheating time and heating power consumption.

[0052] In some preferred embodiments of this application, the heating element 5 is a PI film heating element, which uses metal foil or etched circuits as the heating element. Combined with the high thermal conductivity of the PI film, it can achieve millisecond-level heating. Its thermal efficiency is significantly improved compared with traditional heating wires, which is beneficial to shorten the preheating time of the CT detector.

[0053] It should be noted that in traditional CT scanning equipment, two heating elements 100 are required on the guide rail 200 to heat 47 CT detectors, with a total power consumption of approximately 330W. In contrast, the power consumption of a single PI film heating element in this application is between 0.1W and 0.5W. If each CT detector integrates a heating element 5, the maximum power consumption is only 23.5W. Compared to traditional CT scanning equipment, the power consumption during the preheating process of multiple CT detectors to the preset temperature is only 7% of that of traditional heating methods. Furthermore, the preheating time of traditional CT scanning equipment is typically around 2 hours, while the CT detector in this application, through its integrated heating element 5, can shorten the preheating time to approximately 20 minutes.

[0054] In addition, traditional CT equipment requires the addition of metal baffles on the guide rail to enhance EMC shielding when setting up long strip heating elements. However, this application integrates the heating element 5 into the inside of the CT detector, eliminating the need for additional components (such as metal baffles), which can reduce the overall cost of CT scanning equipment.

[0055] In some embodiments of this application, please refer to Figure 3 and Figure 4The heating element 5 is sandwiched between the ADC module 3 and the heat conduction component 4. When the heating element 5 is working, it can directly heat the ADC module 3 on one side and transfer the heat to the photoelectric conversion module 2 and the scintillator 1 through the ADC module 3, so that the heat conduction path is the shortest and the heating efficiency is the highest.

[0056] In other embodiments of this application, please refer to Figure 3 , Figure 4 and Figure 7 The ADC module 3 includes a mounting block 31 and a first flexible circuit board 32. The first flexible circuit board 32 covers the outer surface of the mounting block 31. The mounting block 31 is made of a thermally conductive material (such as aluminum). The mounting block 31 can support the first flexible circuit board 32 and conduct heat. The first flexible circuit board 32 can be directly attached to the surface of the mounting block 31 to achieve bending and layout, avoiding the space waste caused by the inability to bend traditional rigid circuit boards, which is conducive to realizing the miniaturization design of CT detectors.

[0057] The heating element 5 is sandwiched between the first flexible circuit board 32 and the heat-conducting component 4, and can directly transfer heat to the circuit board of the ADC module 3 (i.e. the first flexible circuit board 32), so that the heat conduction distance is less than 0.6mm and the temperature change response time is less than 0.1 seconds.

[0058] In other embodiments of this application, please refer to Figure 3 and Figure 5 The heat-conducting component 4 includes a first heat-conducting element 41 and a second heat-conducting element 42. The heating element 5 is sandwiched between the first heat-conducting element 41 and the second heat-conducting element 42. The heating element can make the first heat-conducting element 41 and the second heat-conducting element 42 achieve uniform heat diffusion and temperature rise, so that the heat distribution of the heat-conducting component 4 is balanced. Then, it can achieve uniform temperature conduction to the ADC module 3, the photoelectric conversion module 2 and the scintillator 1, which can avoid the local overheating of the CT detector.

[0059] As a specific embodiment of this application, when the first heat-conducting element 41 is located between the ADC module 3 and the heating element 5, the heat conduction distance can be less than 0.8 mm and the temperature change response time can be less than 0.1 seconds.

[0060] In some embodiments of this application, please refer to Figure 3 and Figure 6 The heat-conducting component 4 includes a first heat-conducting element 41 and a second heat-conducting element 42. The second heat-conducting element 42 is located on the side of the first heat-conducting element 41 away from the ADC module 3. The heating element 5 is attached to the surface of the second heat-conducting element 42 away from the first heat-conducting element 41. Since this side surface is located outside the CT detector, it is convenient to install and replace the heating element 5.

[0061] In some embodiments of this application, please refer to Figure 3 The first heat-conducting component 41 and the second heat-conducting component 42 are both aluminum blocks, which have the advantages of being lightweight and having good thermal conductivity. When the CT detector is in normal operation, the heating element 5 stops working and can dissipate heat through the heat-conducting component 4, thus avoiding the risk of overheating of the CT detector during operation.

[0062] It should be noted that, in the above embodiments, the wires of the heating element 5 can be connected to the pads 91 of the second flexible circuit board 9 in the CT detector by soldering, so as to realize the control of the heating element 5 through the second flexible circuit board 9.

[0063] In some embodiments of this application, the projected area of ​​the heating element 5 along the height direction is less than or equal to the projected area of ​​the scintillator 1. This is because when the heating element 5 is integrated inside the CT detector, the heat source can directly contact the components in the CT detector. At this time, the size of the heating element 5 can be set small enough, and the heat is uniformly diffused and conducted through the heat conduction component 4.

[0064] As a specific embodiment of this application, the length of a single heating element 5 is 3.5 mm and the width is 2 mm. When the CT scanning device has 47 CT detectors, and each CT detector is equipped with one heating element 5, the total area of ​​the multiple heating elements 5 is S1 = 3.5 × 2 × 47 = 329 mm². 2 .

[0065] In traditional CT scanning equipment, please refer to Figure 1 Since the lengths of the two heating elements 100 need to be sufficiently long to achieve full coverage heating of multiple CT detectors, their total area S2 is approximately 412462 mm². 2 .

[0066] Therefore, this application can greatly reduce the total area and manufacturing cost of the heating element 5. At the same time, since the size of the heating element 5 in this application can be set small enough (e.g., 3.5mm × 2mm), it is beneficial to realize the integrated installation of the heating element 5 inside the CT detector.

[0067] In some embodiments of this application, please refer to Figures 4 to 6 Thermal grease is filled between the contact surfaces of the heating element 5 and the heat-conducting component 4, which can fill the micro gaps between the heating element 5 and the heat-conducting component 4, reduce the contact thermal resistance between the heating element 5 and the heat-conducting component 4, improve the heat conduction efficiency between the heating element 5 and the heat-conducting component 4, and then the heat is uniformly conducted to the ADC module 3, the photoelectric conversion module 2 and the scintillator 1 through the heat-conducting component 4.

[0068] Specifically, the thermal grease can be thermally conductive silicone grease or thermally conductive resin. As long as it can achieve efficient heat conduction, it can achieve the purpose of this application.

[0069] In some embodiments of this application, please refer to Figure 2 and Figure 3 The CT detector also includes a circuit board connector 10, which is used to enable communication between the ADC module 3 and the second flexible circuit board 9. The information of the ADC module 3 can be transmitted to the control component 6 through the second flexible circuit board 9.

[0070] Please see Figures 2 to 8 The second aspect of this application provides a temperature control system, including the CT detector described in the above embodiments, and further including a control component 6 and a detection component 7. The detection component 7 includes multiple temperature sensors, which are correspondingly set with multiple CT detectors to detect the temperature of the multiple CT detectors. The control component 6 is connected to the detection component 7 and the heating element 5 respectively. When the temperature of the detected CT detector is lower than the normal operating temperature, the control component 6 turns on the heating element 5 in the CT detector for targeted heating, and the temperature sensor provides real-time feedback on temperature changes so as to control the start and stop of the heating element 5 in a timely manner.

[0071] In some embodiments of this application, please refer to Figure 8 The temperature control system also includes a fan assembly 8. The control assembly 6 is signal-connected to the fan assembly 8 and can control the start and stop of the fan assembly 8 through the control assembly 6 to cool the CT detector when the temperature of the CT detector is too high.

[0072] In some embodiments of this application, please refer to Figure 8 When multiple CT detectors are arranged in an array, they can be divided into n regions. Each region has a corresponding sub-control system. Each sub-control system can collect temperature data from the ADC modules 3 of x CT detectors within that region, and then perform zoned control on the n×x CT detectors in the n regions through sub-control systems 1 to n. Finally, the main control system adjusts the n sub-control systems to ensure that the temperature of the CT detectors in each region remains consistent.

[0073] Specifically, a two-level control system can be formed through control component 6. The first-level control system consists of sub-control systems 1 to n, and the second-level control system is the overall control system. Each sub-control system can collect the temperature from a temperature sensor located inside the ADC module 3. Based on the collected temperature, it determines whether the heating element 5 of the CT detector needs to be activated, allowing for targeted heating of each CT detector. Simultaneously, each sub-control system also feeds back the collected temperature information to the overall control system. The overall control system, based on the actual collected temperature information, determines whether to start the fan and adjusts the fan's airflow and pressure to meet actual needs.

[0074] It should be noted that since the temperature collected by the temperature sensor inside each ADC module 3 is a relative temperature, at the moment the CT scanning equipment is powered on, the temperature sensor inside the ADC module 3 is calibrated by the temperature sensors set on the sub-control systems 1 to n, so that the temperature collected by the temperature sensor inside the ADC module 3 is the same as the temperature collected by the temperature sensor set on the corresponding sub-control system, which becomes the absolute temperature. This can eliminate sensor error and meet the accuracy requirements of the overall control decision.

[0075] Please see Figures 2 to 8 A third aspect of this application provides a CT scanning device, including the CT detectors described in the above embodiments; multiple CT detectors are movably arranged via a gantry and can rotate around the scanning bed of the CT scanning device. Since the CT detectors of this application integrate heating elements 5, rapid preheating of the CT detectors can be achieved, which helps to reduce the preheating time and power consumption of the CT scanning device.

[0076] In some embodiments of this application, the CT scanning device includes the temperature control system described in the above embodiments. The temperature control system can achieve direct, targeted, and precise temperature adjustment for each CT detector, which is beneficial to ensuring the image quality and clinical diagnostic efficiency of the CT scanning device.

[0077] It should be noted that with the development of CT scanning equipment technology, the number of CT detectors in high-end models is increasing, reaching about 450, which is far higher than that of traditional low-end or mid-range models (such as about 90). When the temperature control system of this application is applied to high-end models, it can achieve precise temperature control of CT detectors in different areas, so that the CT detectors in each area have high temperature uniformity, which helps to reduce the temperature difference between different CT detectors and avoid the temperature difference between different CT detectors from affecting the image quality of the scan.

[0078] Please see Figures 2 to 8In some embodiments of this application, the preheating process of the CT scanning device described above is as follows:

[0079] Step 1: Turn on the CT scanning equipment and collect the current temperature of multiple CT detectors through multiple temperature sensors in the detection component 7;

[0080] Step 2: Determine the current temperature of each CT detector. If the current temperature is lower than the normal operating temperature, turn on the heating element 5 in the CT detector to heat it until the temperature of the CT detector reaches the normal operating temperature range.

[0081] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0082] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0083] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A CT detector, characterized in that, It includes a scintillator (1), a photoelectric conversion module (2), an ADC module (3), a heat-conducting component (4), and a heating element (5), wherein the heat-conducting component (4), the ADC module (3), the photoelectric conversion module (2), and the scintillator (1) are stacked sequentially from bottom to top; The heat-conducting component (4) is made of a heat-conducting material, and the heating element (5) is disposed in contact with the heat-conducting component (4) to heat the scintillator (1), the photoelectric conversion module (2) and the ADC module (3).

2. The CT detector according to claim 1, characterized in that, The heating element (5) is sandwiched between the ADC module (3) and the heat-conducting component (4).

3. The CT detector according to claim 2, characterized in that, The ADC module (3) includes a mounting block (31) and a first flexible circuit board (32). The first flexible circuit board (32) covers the outer surface of the mounting block (31). The mounting block (31) is made of a thermally conductive material. The heating element (5) is sandwiched between the first flexible circuit board (32) and the heat-conducting component (4).

4. The CT detector according to claim 1, characterized in that, The heat-conducting component (4) includes a first heat-conducting element (41) and a second heat-conducting element (42), and the heating element (5) is sandwiched between the first heat-conducting element (41) and the second heat-conducting element (42).

5. The CT detector according to claim 1, characterized in that, The heat-conducting component (4) includes a first heat-conducting element (41) and a second heat-conducting element (42). The second heat-conducting element (42) is located on the side of the first heat-conducting element (41) away from the ADC module (3). The heating element (5) is attached to the surface of the second heat-conducting element (42) on the side away from the first heat-conducting element (41).

6. The CT detector according to any one of claims 1 to 5, characterized in that, The projected area of ​​the heating element (5) along the height direction is less than or equal to the projected area of ​​the scintillator (1).

7. The CT detector according to any one of claims 1 to 5, characterized in that, The contact surface between the heating element (5) and the heat-conducting component (4) is filled with thermal grease.

8. A temperature control system, characterized in that, The device includes a CT detector as described in any one of claims 1 to 7, and further includes a control component (6) and a detection component (7). The detection component (7) includes a plurality of temperature sensors, which are configured to detect the temperature of the plurality of CT detectors. The control component (6) is connected to the detection component (7) and the heating element (5) respectively.

9. The temperature control system according to claim 8, characterized in that, It also includes a fan assembly (8), and the control component (6) is signal-connected to the fan assembly (8).

10. A CT scanning device, characterized in that, Including the CT detector as described in any one of claims 1 to 7; Alternatively, it may include the temperature control system as described in claim 8 or 9.

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