X-ray tube device with high counting rate

Abstract

The invention discloses a high-counting-rate X-ray tube device which comprises a shell, a lead plate is fixed to the inner wall of the shell, the shell is composed of a top cover, a wall barrel and a bottom cover, and an X-ray outlet hole is formed in the wall barrel; a heat sink; the low-voltage interface device is fixedly connected with the top cover; one end of the X-ray tube core is connected with the low-voltage interface device, and the other end of the X-ray tube core is fixedly connected with the radiator; one end of the high-voltage connecting device is fixedly connected with the top cover, and the other end of the high-voltage connecting device is fixedly connected with the radiator; the bottom in the insulating sleeve is fixedly connected with the radiator; the expansion and contraction device is arranged between the insulation sleeve and the bottom cover, the space between the expansion and contraction device and the top cover is filled with transformer oil, and the expansion and contraction device is fixed by the inner ring fixer. According to the scheme, the X-ray tube device with the high counting rate can be ensured to continuously work at the temperature of-10 DEG C to 55 DEG C for a long time, the vacuum degree of an X-ray tube core can be protected, and risks such as arc discharge or X-ray tube breakdown can be avoided.

Description

Technical Field

[0001] This application relates to the field of X-ray technology, and particularly to a high count rate X-ray tube device. Background Art

[0002] As the core component of an X-ray generating device, the X-ray tube is widely used in fields such as industrial non-destructive testing, medical imaging, and security inspection equipment. With technological progress, the demand for X-ray tubes is increasing day by day, but it faces many technical challenges in high-power and long-time working scenarios. Traditional X-ray tube devices have problems such as low heat dissipation efficiency and difficulty in maintaining vacuum, which limit their performance and service life.

[0003] The heat dissipation efficiency of traditional X-ray tube devices is insufficient. When working at high power, a large amount of heat is generated on the anode target surface due to electron beam bombardment. If the heat is not dissipated in time, the target surface temperature will be too high, causing target material ablation and shortening the service life. Existing heat dissipation designs (such as heat sinks, forced air cooling, etc.) are still difficult to meet the requirements in high count rate scenarios.

[0004] Traditional X-ray tube devices have difficulty in maintaining vacuum in high-temperature environments. The X-ray tube needs to maintain a high vacuum to ensure stable electron movement and X-ray output. However, when working at high power, the internal temperature rises, causing material outgassing and a decrease in vacuum, which may trigger arc discharge and affect the safety and performance of the equipment. Existing methods such as getters have limited effects under high-temperature conditions. Summary of the Invention

[0005] An embodiment of this application provides a high count rate X-ray tube device.

[0006] To achieve the above object, an embodiment of this application provides a high count rate X-ray tube device, including:

[0007] A housing, with a lead plate fixed to the inner wall of the housing. The housing consists of a top cover, a wall barrel, and a bottom cover, and an X-ray outlet hole is provided on the wall barrel;

[0008] A radiator;

[0009] A low-voltage interface device, fixedly connected to the top cover;

[0010] An X-ray tube core, one end of which is connected to the low-voltage interface device, and the other end of which is fixedly connected to the radiator;

[0011] A high-voltage connection device, one end of which is fixedly connected to the top cover, and the other end of which is fixedly connected to the radiator;

[0012] An insulating sleeve, the bottom inside the insulating sleeve is fixedly connected to the radiator;

[0013] The expander is provided between the insulating sleeve and the bottom cover. The space between the expander and the top cover is filled with transformer oil, and the expander is fixed by the inner ring fixator.

[0014] In one embodiment, the top cover is provided with a low-voltage power supply interface hole and a high-voltage power supply interface hole;

[0015] The low-voltage power supply interface hole is fixedly connected to the low-voltage interface device;

[0016] The high-voltage power supply interface hole is connected to one end of the high-voltage connection device.

[0017] In one embodiment, the high-voltage connection device includes:

[0018] The high-voltage interface fixator is used to fix one end of the high-voltage connection device to the high-voltage power supply interface hole on the top cover;

[0019] The high-voltage connecting rod is composed of a 50KV PEEK high-voltage rod and a high-voltage interface copper part. The high-voltage interface copper part is used to fixedly connect the other end of the high-voltage connection device to the radiator; the 50KV PEEK high-voltage rod is connected to the high-voltage interface fixator.

[0020] In one embodiment, the X-ray tube core includes:

[0021] The vacuum glass tube has a raised near-hemispherical part on its wall body as the X-ray output port of the X-ray tube core, and the raised near-hemispherical part is correspondingly arranged with the X-ray outlet hole;

[0022] The wick is the cathode of the X-ray tube core and is arranged at one end of the vacuum glass tube. The wick is composed of a filament, a condenser hood and a core column. The condenser hood condenses the filament, and the core column connects the filament to low-voltage electricity; the core column is connected to the low-voltage interface device;

[0023] The target is the anode of the X-ray tube core and is arranged at the other end of the vacuum glass tube. The target is composed of a target surface and a copper target; the copper target is connected to the high-voltage connection device.

[0024] In one embodiment, the radiator is provided with:

[0025] The X-ray tube fixing hole is fixedly connected to the copper target of the X-ray tube core;

[0026] The fixing hole is fixedly connected to the insulating sleeve;

[0027] The high-voltage connection device fixing hole is fixedly connected to the high-voltage connection device with the high-voltage interface copper part.

[0028] In one embodiment, the insulating sleeve is provided with:

[0029] The radiator fixing holes are fixed to the fixing holes of the radiator with screws to stabilize the radiator;

[0030] The insulating sleeve opening is an opening through which X-rays pass through the insulating sleeve, and is correspondingly arranged with the X-ray outlet hole.

[0031] In one of the embodiments, the low-voltage interface device includes:

[0032] The low-voltage interface copper part is fixedly connected to the low-voltage power supply interface hole of the top cover;

[0033] The insulating fixing rubber plug;

[0034] The low-voltage terminal passes through the low-voltage interface copper part and is fixed by the insulating fixing rubber plug. The low-voltage terminal is connected to the core column of the X-ray tube core with a wire.

[0035] In one of the embodiments, the high counting rate X-ray tube device further includes: a flange device, which is arranged on the wall barrel.

[0036] The wall barrel is also provided with a flange positioning hole;

[0037] The flange device includes:

[0038] The flange body is arranged at the X-ray outlet hole;

[0039] The positioning hole is opened on the flange body, and the positioning hole is correspondingly arranged with the flange positioning hole;

[0040] The window is opened on the flange body, and the window is correspondingly arranged with the X-ray outlet hole;

[0041] The window pressing ring is used to fix the window;

[0042] The external device fixing hole is opened on the flange body, and the external device fixing hole is used to fixedly connect the external device.

[0043] In one of the embodiments, the inner ring fixer includes;

[0044] The inner ring is used to fix the expander;

[0045] The pressing ring is threadedly connected to the internal thread of the housing, and the pressing ring clamps the inner ring.

[0046] This application has the following beneficial effects compared with the prior art:

[0047] 1. The high counting rate X-ray tube device provided by this application has a nearly hemispherical convex part on the vacuum glass tube wall of the X-ray tube core, which makes the X-ray output path more in a vacuum state, thereby improving the efficiency of the X-ray tube, reducing the dose of X-ray KV and MA, and the heat of the X-ray tube itself. After a large number of actual tests, the efficiency has doubled.

[0048] 2. The high counting rate X-ray tube device provided by this application has the X-ray tube core sealed in transformer oil, effectively protecting the vacuum degree of the X-ray tube core and increasing the service life of the X-ray tube core.

[0049] 3. The high counting rate X-ray tube device provided by this application has double insulation of the insulating sleeve and transformer oil, enhancing the insulation effect against high voltage.

[0050] 4. The high counting rate X-ray tube device provided by this application has the radiator and transformer oil effectively accelerating the heat dissipation during the operation of the target.

[0051] 5. The high counting rate X-ray tube device provided by this application can work continuously at -10°C to 55°C for a long time, and can protect the vacuum degree of the X-ray tube core, avoiding risks such as arc discharge or X-ray tube breakdown. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0053] Figure 1 It is a schematic diagram of the overall structure of the high counting rate X-ray tube device in the embodiment of this application;

[0054] Figure 2 It is a schematic diagram of the internal part of the overall structure of the high counting rate X-ray tube device in the embodiment of this application;

[0055] Figure 3 It is a schematic diagram of the housing structure of the high counting rate X-ray tube device in the embodiment of this application;

[0056] Figure 4 It is a schematic diagram of the top cover structure of the high counting rate X-ray tube device in the embodiment of this application;

[0057] Figure 5 It is a schematic diagram of the wall barrel structure of the high counting rate X-ray tube device in the embodiment of this application;

[0058] Figure 6Schematic diagram of the X-ray tube core structure in the high counting rate X-ray tube device of the embodiment of the present application;

[0059] Figure 7 Schematic diagram of the wick structure in the high counting rate X-ray tube device of the embodiment of the present application;

[0060] Figure 8 Schematic diagram of the target structure in the high counting rate X-ray tube device of the embodiment of the present application;

[0061] Figure 9 Schematic diagram of the flange device structure in the high counting rate X-ray tube device of the embodiment of the present application Figure 1 ;

[0062] Figure 10 Schematic diagram of the flange device structure in the high counting rate X-ray tube device of the embodiment of the present application Figure 2 。

[0063] Figure 11 Schematic diagram of the radiator structure in the high counting rate X-ray tube device of the embodiment of the present application;

[0064] Figure 12 Schematic diagram of the inner ring fixator structure in the high counting rate X-ray tube device of the embodiment of the present application;

[0065] Figure 13 Schematic diagram of the expander structure in the high counting rate X-ray tube device of the embodiment of the present application;

[0066] Figure 14 Schematic diagram of the insulating sleeve structure in the high counting rate X-ray tube device of the embodiment of the present application;

[0067] Figure 15 Schematic diagram of the structure of the high voltage connection device in the high counting rate X-ray tube device of the embodiment of the present application;

[0068] Figure 16 Schematic diagram of the high voltage connecting rod structure in the high counting rate X-ray tube device of the embodiment of the present application;

[0069] Figure 17 Schematic diagram of the low voltage interface device structure in the high counting rate X-ray tube device of the embodiment of the present application;

[0070] In the figure: 1. Outer shell; 11. Top cover; 111. Low-voltage power supply interface hole; 112. High-voltage power supply interface hole; 12. Wall barrel; 121. X-ray exit hole; 122. Flange positioning hole; 13. Bottom cover; 2. X-ray tube core; 21. Vacuum glass tube; 22. Wick; 221. Filament; 222. Condensing hood; 223. Core column; 23. Target; 231. Target surface; 232. Copper target; 3. Flange device; 31. Positioning hole; 32. Flange body; 33. Window; 34. Window compression ring; 35. External device fixing hole; 4. Radiator; 41. X-ray tube fixing hole; 42. Fixing hole; 43. High-voltage connection device fixing hole; 5. Inner ring fixator; 51. Inner ring; 52. Compression ring; 6. Expander; 7. Insulating sleeve; 71. Radiator fixing hole; 72. Insulating sleeve opening; 8. High-voltage connection device; 81. High-voltage interface fixing part; 82. High-voltage connecting rod; 821. 50KV PEEK high-voltage rod; 822. High-voltage interface copper part; 9. Lead plate; 10. Low-voltage interface device; 101. Low-voltage interface copper part; 102. Insulating fixing rubber plug; 103. Low-voltage terminal. Detailed implementation manners

[0071] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0072] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0073] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; for those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0074] Referring to Figure 1 , Figure 2 , the embodiments of the present application provide a high count rate X-ray tube device, including:

[0075] A housing 1, with a lead plate 9 fixed to the inner wall of the housing 1. The housing 1 is composed of a top cover 11, a wall barrel 12, and a bottom cover 13. An X-ray outlet hole 121 is provided on the wall barrel 12;

[0076] A flange device 3, which is arranged on the wall barrel 12.

[0077] A radiator 4;

[0078] A low-voltage interface device 10, which is fixedly connected to the top cover 11;

[0079] An X-ray tube core 2, one end of the X-ray tube core 2 is connected to the low-voltage interface device 10, and the other end of the X-ray tube core 2 is fixedly connected to the radiator 4;

[0080] A high-voltage connection device 8, one end of the high-voltage connection device 8 is fixedly connected to the top cover 11, and the other end of the high-voltage connection device 8 is fixedly connected to the radiator 4;

[0081] An insulating sleeve 7, the bottom inside the insulating sleeve 7 is fixedly connected to the radiator 4;

[0082] An expander 6, the expander 6 is between the insulating sleeve 7 and the bottom cover 13. The space between the expander 6 and the top cover 11 is filled with sealed transformer oil, and the expander 6 is fixed by an inner ring fixator 5.

[0083] Specifically, the housing 1 is a special cylindrical stainless-steel container. As Figure 3 shown, the upper part of the housing 1 is the top cover 11, the middle part is the wall barrel 12, and the bottom part is the bottom cover 13. As Figure 4 shown, a low-voltage power supply interface hole 111 and a high-voltage power supply interface hole 112 are provided on the top cover 11. Among them, the low-voltage power supply interface hole 111 is fixedly connected to the low-voltage interface device 10 for fixing the low-voltage interface device 10, and the high-voltage power supply interface hole 112 is connected to one end of the high-voltage connection device 8 for fixing the high-voltage connection device 8. As Figure 5 shown, an X-ray outlet hole 121 and a flange positioning hole 122 are provided on the wall barrel 12. Among them, the X-ray outlet hole 121 is used for the X-ray emitted by the X-ray tube core 2 to output, or for welding the flange device 3 to connect external equipment. Among them, a window for X-ray output is provided on the flange device 3, and the flange positioning hole 122 is used to ensure the accuracy of the welding position of the flange device 3. A 1MM lead plate 9 is fixed to the inner wall of the housing 1 to shield scattered X-ray radiation.

[0084] The high-voltage connection device 8 is used to supply the high voltage output by the high-voltage power supply to the X-ray tube core 2, and the low-voltage interface device 10 provides low voltage for the X-ray tube core 2. The insulating sleeve 7 and the transformer oil are used to isolate the high voltage.

[0085] In the high counting rate X-ray tube device provided in this embodiment, the radiator 4 is a heat dissipation conductor for the anode of the X-ray tube core 2. The heat generated by the anode is quickly conducted to the transformer oil through the radiator 4 and then quickly conducted to the stainless steel shell 1 for external heat dissipation, so as to ensure that the X-ray tube core 2 can work at a relatively low temperature for a long time.

[0086] In one embodiment, as Figure 6 shown, the X-ray tube core 2 includes:

[0087] A vacuum glass tube 21, on the wall of which there is a raised near hemispherical part as the X-ray output port of the X-ray tube core 2; the raised near hemispherical part is correspondingly arranged with the X-ray outlet hole 121;

[0088] A wick 22, which is the cathode of the X-ray tube core 2 and is arranged at one end of the vacuum glass tube 21; the wick 22 is composed of a filament 221, a condenser hood 222 and a core column 223. The condenser hood 222 condenses light for the filament 221, and the core column 223 connects the filament 221 to low-voltage electricity; the core column 223 is connected to the low-voltage interface device 10;

[0089] A target 23, which is the anode of the X-ray tube core 2 and is arranged at the other end of the vacuum glass tube 21. The target 23 is composed of a target surface 231 and a copper target 232; the copper target 232 is connected to the high-voltage connection device 8.

[0090] Specifically, the vacuum glass tube 21 is a vacuum tube columnar, which is used to carry the remaining components and withstand the internal vacuum pressure and X-ray output.

[0091] By providing a near hemispherical X-ray output port that protrudes radially outward along the wall of the vacuum glass tube 21, more paths for X-ray output can be created in a vacuum state, reducing the dose of KV and MA of the X-ray tube. This innovative design greatly reduces the heat generation of the X-ray tube core 2 and greatly improves the utilization efficiency of X-rays. After a large number of actual tests, the efficiency has doubled, that is, the detection requirements can be met with only 1 / 2 of the original X-ray dose, effectively extending the life of the X-ray tube. Among them, the X-ray output port can be set to a conical or hemispherical shape. It can be understood that the size of the X-ray output port is set according to actual needs.

[0092] As Figure 7 shown, the wick 22 is composed of a filament 221, a condenser hood 222 and a core column 223. As Figure 8 shown, the target 23 includes a copper target 232 and a target surface 231. The target 23 is fixedly connected to the X-ray tube fixing hole 41 of the radiator 4.

[0093] The wick 22 serves as the cathode of the X-ray tube core 2. The filament 221 is made of tungsten wire and is heated to a high temperature by passing an electric current, thereby emitting electrons. The cathode head of the condenser hood 222 provides support for the filament 221 and helps to focus the electrons, ensuring that the electrons can be accurately guided to the anode target surface 231. The center of the target surface 231 is based on and welded to the axial center of the inclined plane of the copper target 232. The target surface 231 withstands high temperature and the action of the electron beam, and the copper target 232 serves to carry the target surface 231 and transfer the heat generated by the target surface 231 outside the X-ray tube core 2. The inclined plane of the copper target 232 is 19°, and the welded target surface 231 is also 19°. This angle reflects the X-rays for output.

[0094] The X-ray tube core 2 is a high-count X-ray tube core. After applying high voltage to the target material and low voltage to the filament, X-rays are generated on the target surface.

[0095] In one embodiment, the high-count X-ray tube device further includes a flange device 3, and the X-rays emitted by the X-ray tube core 2 are output through the flange device 3. The flange device 3 is used to accurately dock with the card slot at the X-ray inlet of the application device, and a collimator can also be installed on the flange device 3. The specifications and the diameter of the holes of the collimator are related to the item being measured and can be added by the user himself.

[0096] Specifically, as Figure 9 、 Figure 10 shown, the flange device 3 includes: a flange body 32, on which a positioning hole 31, a window 33, a window retaining ring 34, and an external device fixing hole 35 are provided.

[0097] The flange body 32 is disposed at the X-ray outlet hole 121; the positioning hole 31 is opened on the flange body 32, and the positioning hole 31 is correspondingly arranged with the flange positioning hole 122 on the wall barrel 12; the window 33 is opened on the flange body 32, and the window 33 is correspondingly arranged with the X-ray outlet hole 121; the window retaining ring 34 is used to fix the window 33; the external device fixing hole 35 is opened on the flange body 32, and the external device fixing hole 35 is used to fixedly connect an external device.

[0098] Specifically, one side of the flange body 32 is provided with a bayonet, which just fits onto the X-ray outlet hole 121 on the wall barrel 12. The positioning hole 31 is docked with the flange positioning hole 122 on the wall barrel 12 to ensure the accuracy of the positioning, and then welding is carried out. The window 33 of the flange device 3 is the output port for the X-rays to the outside, which can be a glass window or a beryllium window, and the glass window or the beryllium window is sealed and fixed with the window retaining ring 34. The external device fixing hole 35 is used to fixedly connect an external device.

[0099] In one embodiment, as Figure 11 shown, the radiator 4 is provided with:

[0100] The X-ray tube fixing hole 41 is fixedly connected to the copper target 232 of the X-ray tube core 2.

[0101] The fixing hole 42 is fixedly connected to the insulating sleeve 7.

[0102] The high-voltage connection device fixing hole 43 is fixedly connected to the high-voltage connection device 8 by the high-voltage interface copper part 822.

[0103] The radiator 4 is made of aluminum. Its first function is to transfer the heat generated by the target 231 of the X-ray tube core 2 to the transformer oil and then dissipate the heat outward through the outer shell 1. Its second function is to serve as a conductor for connecting high voltage. Its third function is to fixedly connect the X-ray tube core 2 and the high-voltage connection device 8.

[0104] In one embodiment, as Figure 15 shown, the high-voltage connection device 8 includes:

[0105] The high-voltage interface fixing part 81 is used to fix one end of the high-voltage connection device 8 to the high-voltage power supply interface hole 112 of the top cover 11.

[0106] The high-voltage connecting rod 82 is composed of a 50KV PEEK high-voltage rod 821 and a high-voltage interface copper part 822. The high-voltage interface copper part 822 is used to fixedly connect the other end of the high-voltage connection device 8 to the radiator 4. The 50KV PEEK high-voltage rod 821 is connected to the high-voltage interface fixing part 81.

[0107] Specifically, as Figure 16 shown, the high-voltage connecting rod 82 is composed of a 50KV PEEK high-voltage rod 821 and a high-voltage interface copper part 822. The upper end of the 50KV PEEK high-voltage rod 821 is fixed on the high-voltage interface fixing part 81. The lower end of the 50KV PEEK high-voltage rod 821 is equipped with a high-voltage interface copper part 822, which is the interface for external input of high voltage. The other end of the high-voltage interface copper part 822 is fixedly connected to the radiator 4, playing a role of fixation and conduction.

[0108] The function of the high-voltage connection device is that the high voltage output by the high-voltage power supply provides high voltage for the X-ray tube core through this device.

[0109] In one embodiment, as Figure 14 shown, the insulating sleeve 7 is provided with:

[0110] The radiator fixing hole 71 is fixed to the fixing hole 42 of the radiator 4 with screws to stabilize the radiator 4.

[0111] The insulating sleeve opening 72 is an opening through which X-rays pass through the insulating sleeve 7 and is correspondingly arranged with the X-ray outlet hole 121.

[0112] The insulating sleeve 7 is made of polytetrafluoroethylene and surrounds the anode of the X-ray tube core, the high-voltage interface copper part and the radiator. Its function is to isolate the high-voltage electricity of the anode of the X-ray tube core 2 and prevent the high-voltage end of the X-ray tube core 2 from discharging to the ground or being punctured.

[0113] In one embodiment, as Figure 13 shown, the expander 6 is a soft rubber product and is fixed under the insulating sleeve 7. The expander 6 is sealed with the top cover 11 and filled with transformer oil. The function of the expander 6 is to seal the transformer oil in the shell and form a pressure buffer layer that freely expands and contracts due to temperature changes, relieve the pressure caused by the thermal expansion of the transformer oil and materials due to the heat generated during the operation of the X-ray tube core, and prevent the leakage of transformer oil and the bursting of the X-ray tube core due to excessive pressure.

[0114] In one embodiment, an inner ring fixator 5 is arranged between the bottom cover 13 and the insulating sleeve 7. As Figure 12 shown, the inner ring fixator 5 includes an inner ring 51 and a pressing ring 52. The inner ring 51 is used to fix the expander 6, and the pressing ring 52 clamps the inner ring 51. The pressing ring 52 is threadedly connected to the bottom of the wall barrel 12 of the shell 1.

[0115] The inner ring fixator 5 is used to reinforce the transformer oil filled inside the shell 1 and prevent the expander 6 from slipping downward and causing the leakage of transformer oil.

[0116] In one embodiment, as Figure 17 shown, the low-voltage interface device 10 includes:

[0117] A low-voltage interface copper part 101, which is fixedly connected to the low-voltage power supply interface hole 111 of the top cover 11;

[0118] An insulating fixing rubber plug 102, which has the functions of insulation and fixation;

[0119] A low-voltage terminal 103, which passes through the low-voltage interface copper part 101 and is fixed by the insulating fixing rubber plug 102, and the low-voltage terminal 103 is connected to the core column 223 of the X-ray tube core 2 by a wire.

[0120] Specifically, the low-voltage interface copper part 101 is fixed on the low-voltage power supply interface hole 111 of the top cover 11 by screws. One end of the low-voltage terminal 103 is connected to the core column 223 of the lamp core 22 by a wire to supply power to the filament 221. The low-voltage terminal 103 is fixed by the insulating fixing rubber plug 102.

[0121] The X-ray tube device provided by the embodiment of the present application greatly improves the heat dissipation performance of the X-ray tube, effectively extends the service life of the X-ray tube, has high stability, and is applicable to fields such as industrial non-destructive testing and security inspection equipment.

[0122] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A high count rate X-ray tube device, characterized in that: include: A housing (1), wherein a lead plate (9) is fixed to the inner wall of the housing (1), the housing (1) is composed of a top cover (11), a wall barrel (12) and a bottom cover (13), and an X-ray outlet hole (121) is provided on the wall barrel (12); Radiator (4); A low-voltage interface device (10), wherein the low-voltage interface device (10) is fixedly connected to the top cover (11); An X-ray tube core (2), one end of the X-ray tube core (2) being connected to the low-voltage interface device (10), and the other end of the X-ray tube core (2) being fixedly connected to the heat sink (4); A high-voltage connecting device (8), one end of the high-voltage connecting device (8) being fixedly connected to the top cover (11), and the other end of the high-voltage connecting device (8) being fixedly connected to the radiator (4); An insulating sleeve (7), the bottom of the insulating sleeve (7) being fixedly connected to the radiator (4); The expander (6) is arranged between the insulating sleeve (7) and the bottom cover (13), the space between the expander (6) and the top cover (11) is filled with transformer oil, and the expander (6) is fixed by an inner ring fixer (5).

2. The high count rate X-ray tube device according to claim 1, characterized in that: The top cover (11) is provided with a low-voltage power supply interface hole (111) and a high-voltage power supply interface hole (112); The low-voltage power supply interface hole (111) is fixedly connected to the low-voltage interface device (10); The high-voltage power supply interface hole (112) is connected to one end of the high-voltage connection device (8).

3. The high count rate X-ray tube device according to claim 2, characterized in that: The high-voltage connection device (8) comprises: A high-voltage interface fixing member (81), the high-voltage interface fixing member (81) being used to fix one end of the high-voltage connecting device (8) to the high-voltage power supply interface hole (112) of the top cover (11); A high-voltage connecting rod (82), the high-voltage connecting rod (82) being composed of a 50KVPEEK high-voltage rod (821) and a high-voltage interface copper piece (822), the high-voltage interface copper piece (822) being used to fixedly connect the other end of the high-voltage connecting device (8) to the heat sink (4); the 50KVPEEK high-voltage rod (821) being connected to the high-voltage interface fixing piece (81).

4. The high count rate X-ray tube device according to claim 3, characterized in that: The X-ray tube core (2) comprises: A vacuum glass tube (21), wherein the wall of the vacuum glass tube (21) is provided with a protruding nearly hemispherical portion which is an X-ray output port of the X-ray tube core (2), and the protruding nearly hemispherical portion is arranged corresponding to the X-ray output hole (121); A wick (22), the wick (22) being the cathode of the X-ray tube core (2), and being arranged at one end of the vacuum glass tube (21), the wick (22) being composed of a filament (221), a condenser (222), and a stem (223), the condenser (222) condensing light for the filament (221), and the stem (223) connecting the filament (221) to low voltage electricity; the stem (223) being connected to the low voltage interface device (10); A target material (23), the target material (23) being the anode of the X-ray tube core (2), is arranged at the other end of the vacuum glass tube (21), the target material (23) being composed of a target surface (231) and a copper target (232); the copper target (232) is connected to the high-voltage connection device (8).

5. The high count rate X-ray tube device according to claim 4, characterized in that: The radiator (4) is provided with: An X-ray tube fixing hole (41), wherein the X-ray tube fixing hole (41) is fixedly connected to a copper target (232) of an X-ray tube core (2); A fixing hole (42), wherein the fixing hole (42) is fixedly connected to the insulating sleeve (7); A high-voltage connection device fixing hole (43), wherein the high-voltage connection device fixing hole (43) is fixedly connected to the high-voltage connection device (8) by a high-voltage interface copper piece (822).

6. The high count rate X-ray tube device according to claim 5, characterized in that: The insulating sleeve (7) is provided with: A radiator fixing hole (71), wherein the radiator fixing hole (71) and the fixing hole (42) of the radiator (4) are fixed with screws to stabilize the radiator (4); An insulating sleeve opening (72), the insulating sleeve opening (72) being an opening through which X-rays pass through the insulating sleeve (7), and being arranged corresponding to the X-ray exit hole (121).

7. The high count rate X-ray tube device according to claim 4, characterized in that: The low voltage interface device (10) comprises: A low-voltage interface copper piece (101), wherein the low-voltage interface copper piece (101) is fixedly connected to a low-voltage power supply interface hole (111) of the top cover (11); Insulation fixing rubber plug (102); A low-voltage terminal (103) passes through a low-voltage interface copper piece (101) and is fixed by an insulating fixing rubber plug (102); the low-voltage terminal (103) is connected to a core column (223) of an X-ray tube core (2) by a wire.

8. The high count rate X-ray tube device according to claim 1, characterized in that: The high count rate X-ray tube device further comprises: a flange device (3), wherein the flange device (3) is arranged on the wall barrel (12).

9. The high count rate X-ray tube device according to claim 8, characterized in that: The wall barrel (12) is also provided with a flange positioning hole (122); The flange device (3) comprises: A flange body (32), wherein the flange body (32) is arranged at the X-ray exit hole (121); A positioning hole (31) is formed on the flange body (32), and the positioning hole (31) is arranged corresponding to the flange positioning hole (122); a window (33), the window (33) being opened on the flange body (32), the window (33) being arranged corresponding to the X-ray exit hole (121); A window pressing ring (34), wherein the window pressing ring (34) is used to fix the window (33); An external device fixing hole (35), the external device fixing hole (35) is opened on the flange body (32), and the external device fixing hole (35) is used to fix and connect the external device.

10. The high count rate X-ray tube device according to claim 1, characterized in that: The inner ring fixer (5) comprises: An inner ring (51), the inner ring (51) being used to fix the expander (6); A pressure ring (52), the pressure ring (52) is connected to the inner thread of the outer shell (1), and the pressure ring (52) clamps the inner ring (51).

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