X-ray tube device with high counting rate

Abstract

The utility model discloses a high-counting-rate X-ray tube device, and the device comprises a housing which is composed of a top cover, a wall barrel and a bottom cover, and the wall barrel is provided with an X-ray outlet hole; 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] The present application relates to the technical field of X-ray, in particular to a high counting rate X-ray tube device. BACKGROUND

[0002] As the core component of X-ray generating devices, X-ray tubes are widely used in industrial non-destructive testing, medical imaging, security inspection equipment and other fields. With the advancement of technology, the demand for X-ray tubes is increasing, but they face many technical challenges in high-power and long-time working scenarios. Traditional X-ray tube devices have low heat dissipation efficiency, difficulty in maintaining vacuum degree, and other problems, 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, the anode target surface generates a large amount of heat due to electron beam bombardment. If heat dissipation is not timely, it will cause the target surface temperature to be too high, causing target material ablation and shortening the service life. Existing heat dissipation designs (such as heat sinks, forced air cooling, etc.) still cannot meet the needs in high counting rate scenarios.

[0004] Traditional X-ray tube devices have difficulty in maintaining vacuum degree in high temperature environments. X-ray tubes need to maintain high vacuum to ensure stable electron movement and X-ray output, but when working at high power, the internal temperature rises, causing material outgassing and a decrease in vacuum degree, which may cause arc discharge and affect device safety and performance. Existing methods such as getters have limited effect under high temperature conditions. CONTENT OF THE INVENTION

[0005] Embodiments of the present application provide a high counting rate X-ray tube device.

[0006] To achieve the above-mentioned purpose, embodiments of the present application provide a high counting rate X-ray tube device, comprising:

[0007] A housing composed of a top cover, a wall barrel and a bottom cover, the wall barrel is provided with an X-ray exit hole;

[0008] A heat sink;

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

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

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

[0012] An insulating sleeve, the bottom of the insulating sleeve is fixedly connected to the heat sink;

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

[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 with the low-voltage interface device.

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

[0017] In one embodiment, the high-voltage connecting device comprises:

[0018] The high-voltage interface fixing member is used for fixing the other end of the high-voltage connecting device to the high-voltage power supply interface hole of the top cover.

[0019] The high-voltage connecting rod is composed of a 50KV PEEK high-voltage rod and a high-voltage interface copper member, the high-voltage interface copper member is used for fixedly connecting the other end of the high-voltage connecting device with the heat sink, and the 50KV PEEK high-voltage rod is connected with the high-voltage interface fixing member.

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

[0021] The vacuum glass tube is provided with a protruding semi-spherical part as an X-ray output port of the X-ray tube core, and the protruding semi-spherical part is arranged corresponding to the X-ray output hole.

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

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

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

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

[0026] The fixing hole is fixedly connected with the insulating sleeve.

[0027] The high-voltage connecting device fixing hole is fixedly connected with the high-voltage interface copper member of the high-voltage connecting device.

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

[0029] The radiator fixing hole is fixed with the fixing hole of the radiator by a screw to stabilize the radiator;

[0030] The insulation sleeve opening is an opening for X-rays to pass through the insulation sleeve, and is arranged corresponding to the X-ray exit hole.

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

[0032] The low-voltage interface copper piece is fixedly connected with the low-voltage power supply interface hole of the top cover.

[0033] The insulation fixing plug;

[0034] The low-voltage terminal post passes through the low-voltage interface copper piece and is fixed by the insulation fixing plug, and the low-voltage terminal post is connected with the core column of the X-ray tube core by a wire.

[0035] In one of the embodiments, the high-count-rate X-ray tube device further comprises a flange device arranged on the wall barrel.

[0036] A flange positioning hole is further arranged on the wall barrel.

[0037] The flange device comprises:

[0038] The flange body is arranged at the X-ray exit hole.

[0039] The positioning hole is arranged on the flange body and is arranged corresponding to the flange positioning hole.

[0040] The window is arranged on the flange body and is arranged corresponding to the X-ray exit hole.

[0041] The window compression ring is used for fixing the window.

[0042] The external device fixing hole is arranged on the flange body and is used for fixing the external device.

[0043] In one of the embodiments, the inner ring fixer comprises:

[0044] The inner ring is used for fixing the expansion and contraction device.

[0045] The compression ring is screwed with the internal thread of the shell, and the compression ring clamps the inner ring.

[0046] Compared with the prior art, the present application has the following beneficial effects:

[0047] 1. The high counting rate X-ray tube device provided by the application, the near-hemispherical part protruding on the wall of the vacuum glass tube of the X-ray tube core makes the path of X-ray output more in the 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, and through actual large-scale testing, the efficiency is doubled.

[0048] 2. The high counting rate X-ray tube device provided by the application, the X-ray tube core is 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 the application, the insulation sleeve and the transformer oil double insulation, enhancing the insulation effect of high voltage.

[0050] 4. The high counting rate X-ray tube device provided by the application, the radiator and the transformer oil effectively accelerate the heat dissipation of the target material during work.

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

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0053] Figure 1 It is a whole structure schematic diagram of the high counting rate X-ray tube device of the embodiment of the application.

[0054] Figure 2 It is a whole structure internal schematic diagram of the high counting rate X-ray tube device of the embodiment of the application.

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

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

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

[0058] Figure 6Figure 1 is a schematic diagram of a structure of an X-ray tube core in a high counting rate X-ray tube device according to an embodiment of the present application;

[0059] Figure 7 Figure 2 is a schematic diagram of a structure of a lamp core in a high counting rate X-ray tube device according to an embodiment of the present application;

[0060] Figure 8 Figure 3 is a schematic diagram of a structure of a target material in a high counting rate X-ray tube device according to an embodiment of the present application;

[0061] Figure 9 Figure 4 is a schematic diagram of a structure of a flange device in a high counting rate X-ray tube device according to an embodiment of the present application; Figure 1

[0062] Figure 10 Figure 5 is a schematic diagram of a structure of a flange device in a high counting rate X-ray tube device according to an embodiment of the present application; Figure 2 .

[0063] Figure 11 Figure 6 is a schematic diagram of a structure of a heat sink in a high counting rate X-ray tube device according to an embodiment of the present application;

[0064] Figure 12 Figure 7 is a schematic diagram of a structure of an inner ring fixer in a high counting rate X-ray tube device according to an embodiment of the present application;

[0065] Figure 13 Figure 8 is a schematic diagram of a structure of an expander in a high counting rate X-ray tube device according to an embodiment of the present application;

[0066] Figure 14 Figure 9 is a schematic diagram of a structure of an insulating sleeve in a high counting rate X-ray tube device according to an embodiment of the present application;

[0067] Figure 15 Figure 10 is a schematic diagram of a structure of a high voltage connecting device in a high counting rate X-ray tube device according to an embodiment of the present application;

[0068] Figure 16 Figure 11 is a schematic diagram of a structure of a high voltage connecting rod in a high counting rate X-ray tube device according to an embodiment of the present application;

[0069] Figure 17 Figure 12 is a schematic diagram of a structure of a low voltage interface device in a high counting rate X-ray tube device according to an embodiment of the present application;

[0070] ​​In the figure: 1, the shell; 11, the top cover; 111, the low-voltage power supply interface hole; 112, the high-voltage power supply interface hole; 12, the wall barrel; 121, the X-ray hole; 122, the flange positioning hole; 13, the bottom cover; 2, the X-ray tube core; 21, the vacuum glass tube; 22, the lamp core; 221, the filament; 222, the condenser; 223, the core column; 23, the target material; 231, the target surface; 232, the copper target; 3, the flange device; 31, the positioning hole; 32, the flange body; 33, the window; 34, the window compression ring; 35, the external device fixed hole; 4, the heat sink; 41, the X-ray tube fixed hole; 42, the fixed hole; 43, the high-voltage connection device fixed hole; 5, the inner ring fixator; 51, the inner ring; 52, the compression ring; 6, the expander; 7, the insulating sleeve; 71, the heat sink fixed hole; 72, the insulating sleeve opening; 8, the high-voltage connection device; 81, the high-voltage interface fixed part; 82, the high-voltage connecting rod; 821, the 50KV PEEK high-voltage rod; 822, the high-voltage interface copper part; 9, the lead plate; 10, the low-voltage interface device; 101, the low-voltage interface copper part; 102, the insulating fixed rubber plug; 103, the low-voltage terminal post. DETAILED DESCRIPTION

[0071] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0072] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0073] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0074] Reference Figure 1 , Figure 2 The embodiments of the present application provide a high counting rate X-ray tube device, comprising:

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

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

[0077] A radiator 4;

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

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

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

[0081] An insulating sleeve 7 is fixedly connected with the radiator 4 at the bottom;

[0082] A dilator 6 is arranged between the insulating sleeve 7 and the bottom cover 13, the dilator 6 is filled with sealed transformer oil between the dilator 6 and the top cover 11, and the dilator 6 is fixed by an inner ring fixer 5.

[0083] Specifically, the shell 1 is a special cylindrical stainless steel container. Figure 3 As shown in the figure, the upper part of the shell 1 is the top cover 11, the middle part is the wall barrel 12, and the bottom part is the bottom cover 13. Figure 4 As shown in the figure, the top cover 11 is provided with a low-voltage power supply interface hole 111 and a high-voltage power supply interface hole 112, wherein the low-voltage power supply interface hole 111 is fixedly connected with 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 with one end of the high-voltage connecting device 8 for fixing the high-voltage connecting device 8. Figure 5 As shown in the figure, the wall barrel 12 is provided with an X-ray outlet hole 121 and a flange positioning hole 122, wherein the X-ray outlet hole 121 is used for outputting X-rays emitted by the X-ray tube core 2, or for welding the flange device 3 to connect external equipment, wherein the flange device 3 is provided with a window for X-ray output, 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 on the inner wall of the shell 1 to shield scattered X-ray radiation.

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

[0085] The high counting rate X-ray tube device provided by the embodiment is characterized in that the heat sink 4 is a heat conduction conductor for the anode of the X-ray tube core 2, and the heat generated by the anode is rapidly conducted to the transformer oil through the heat sink 4, and then rapidly conducted to the stainless steel shell 1 to dissipate heat outward, so as to ensure that the X-ray tube core 2 can work at a lower temperature for a long time.

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

[0087] a vacuum glass tube 21, a wall of the vacuum glass tube 21 is provided with a convex near-hemispherical part as an X-ray output port of the X-ray tube core 2; the convex near-hemispherical part is arranged correspondingly to the X-ray output hole 121;

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

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

[0090] Specifically, the vacuum glass tube 21 is a tubular column in vacuum, and is used to carry the remaining components and bear the internal vacuum pressure and X-ray output.

[0091] The X-ray output port is arranged on the wall of the vacuum glass tube 21 and protrudes outward along the radial direction of the vacuum glass tube 21 in a near-hemispherical shape, so that the path of the X-ray output is more in the vacuum state, and the dose of the X-ray tube KV and MA is reduced. This innovative design greatly reduces the heating degree of the X-ray tube core 2, greatly improves the use efficiency of the X-ray, and through a large number of actual tests, the efficiency is doubled, that is, the original 1 / 2 X-ray dose can be used to achieve the detection requirement, and the service life of the X-ray tube is effectively prolonged. The X-ray output port can be conical or hemispherical. It can be understood that the size of the X-ray output port is set according to actual requirements.

[0092] As shown in Figure 7 the lamp core 22 is composed of the filament 221, the condenser 222 and the core column 223. As shown in Figure 8 the target material 23 comprises the copper target 232 and the target surface 231. The target material 23 is fixedly connected to the X-ray tube fixing hole 41 of the heat sink 4.

[0093] The lamp core 22 is a cathode of the X-ray tube core 2, the filament 221 is a tungsten filament, and is heated to a high temperature by being electrified to emit electrons. The cathode head of the condenser 222 provides support for the filament 221 and helps focus the electrons to ensure that the electrons can be accurately guided to the anode target surface 231. The center of the target surface 231 is based on the axial center of the inclined surface of the copper target 232 and is welded. The target surface 231 bears high temperature and electron beam action, and the copper target 232 bears the target surface 231 and transmits the heat generated by the target surface 231 to the outside of the X-ray tube core 2. The inclined surface of the copper target 232 is 19°, and the target surface 231 after welding is also 19°. This angle reflects the output of X-rays.

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

[0095] In one embodiment, the high-count X-ray tube device further comprises 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 the clamping slot of the X-ray inlet of the application equipment. A collimator can also be installed on the flange device 3. The specifications and hole diameters of the collimator are related to the measured objects and can be increased by the user himself.

[0096] Specifically, as shown in Figure 9 , Figure 10 The flange device 3 comprises a flange body 32, a positioning hole 31, a window 33, a window compression ring 34, and an external device fixing hole 35 provided on the flange body 32.

[0097] The flange body 32 is provided at the X-ray outlet hole 121. The positioning hole 31 is provided on the flange body 32 and corresponds to the flange positioning hole 122. The window 33 is provided on the flange body 32 and corresponds to the X-ray outlet hole 121. The window compression ring 34 is used to fix the window 33. The external device fixing hole 35 is provided on the flange body 32 and is used to fix the external device.

[0098] Specifically, one side of the flange body 32 is provided with a bayonet that is clamped on the X-ray outlet hole 121 on the wall barrel 12. The positioning hole 31 docks the flange positioning hole 122 on the wall barrel 12 to ensure the accuracy of the clamping position, and then welding is performed. The window 33 of the flange device 3 is the output port of the X-rays to the outside, which can be a glass window or a beryllium window. The glass window or the beryllium window is sealed and fixed by the window compression ring 34. The external device fixing hole 35 is used to fix the external device.

[0099] In one embodiment, as shown in Figure 11 The heat sink 4 is provided with:

[0100] X-ray tube fixing hole 41, which is fixedly connected with the copper target 232 of the X-ray tube core 2;

[0101] Fixing hole 42, which is fixedly connected with the insulating sleeve 7;

[0102] High-voltage connecting device fixing hole 43, which is fixedly connected with the high-voltage connecting device 8 with a high-voltage interface copper piece 822.

[0103] The heat sink 4 is made of aluminum, which has three functions: one is to transfer the heat generated by the target material 231 of the X-ray tube core 2 to the transformer oil and then to the outside through the shell 1; the second is to serve as a conductor for connecting high voltage; and the third is to fixedly connect the X-ray tube core 2 and the high-voltage connecting device 8.

[0104] In one embodiment, as shown in Figure 15 The high-voltage connecting device 8 comprises:

[0105] High-voltage interface fixing piece 81, which is 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;

[0106] High-voltage connecting rod 82, which is composed of a 50KV PEEK high-voltage rod 821 and a high-voltage interface copper piece 822, the high-voltage interface copper piece 822 is used to fixedly connect the other end of the high-voltage connecting device 8 with the heat sink 4; and the 50KV PEEK high-voltage rod 821 is connected with the high-voltage interface fixing piece 81.

[0107] Specifically, as shown in Figure 16 The high-voltage connecting rod 82 is composed of a 50KV PEEK high-voltage rod 821 and a high-voltage interface copper piece 822. The upper end of the 50KV PEEK high-voltage rod 821 is fixed on the high-voltage interface fixing piece 81, and the lower end of the 50KV PEEK high-voltage rod 821 is provided with the high-voltage interface copper piece 822, which is the docking interface for external high-voltage input. The other end of the high-voltage interface copper piece 822 is fixedly connected with the heat sink 4, which plays a role in fixing and conducting electricity.

[0108] The high-voltage connecting device is used to provide high-voltage electricity for the X-ray tube core by the high-voltage power supply.

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

[0110] Heat sink fixing hole 71, which is fixed with a screw with the fixing hole 42 of the heat sink 4 to stabilize the heat sink 4;

[0111] The insulation sleeve opening 72 is an opening through which X-rays pass through the insulation sleeve 7, and is arranged corresponding to the X-ray exit hole 121.

[0112] The material of the insulation sleeve 7 is polytetrafluoroethylene, which surrounds the anode of the X-ray tube core, the high-voltage interface copper piece, and the heat sink, and functions 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 or breaking to ground.

[0113] In one embodiment, as shown in Figure 13 The expander 6 is a soft rubber product and is fixed below the insulation sleeve 7. The expander 6 is sealed with the top cover 11 and is filled with transformer oil. The expander 6 functions to seal the transformer oil in the shell, and forms a pressure buffer layer that freely expands and contracts due to temperature changes, thereby relieving the pressure caused by thermal expansion of the transformer oil and materials during operation of the X-ray tube core, and preventing leakage of the transformer oil and explosion of the X-ray tube core due to excessive pressure.

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

[0115] The inner ring fixer 5 is used to reinforce the transformer oil filled in the shell 1, and prevent the expander 6 from sliding downward to cause leakage of the transformer oil.

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

[0117] A low-voltage interface copper piece 101 is fixedly connected to the low-voltage power supply interface hole 111 of the top cover 11.

[0118] An insulating fixed rubber plug 102 has an insulating and fixing function.

[0119] A low-voltage terminal post 103 passes through the low-voltage interface copper piece 101 and is fixed by the insulating fixed rubber plug 102. The low-voltage terminal post 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 piece 101 is fixed on the low-voltage power supply interface hole 111 of the top cover 11 by a screw. One end of the low-voltage terminal post 103 is connected to the core column 223 of the filament 22 by a wire to supply power to the filament 221. The low-voltage terminal post 103 is fixed by the insulating fixed rubber plug 102.

[0121] The high counting rate X-ray tube device provided by the embodiment of the application greatly improves the heat dissipation performance of the X-ray tube, effectively prolongs the service life of the X-ray tube, has high stability, and is suitable for the fields of industrial nondestructive testing and security inspection equipment.

[0122] The above is only a specific embodiment of the application, but the protection scope of the application is not limited thereto, and any change or replacement within the technical scope disclosed by the application should be covered in the protection scope of the application. Therefore, the protection scope of the 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: The outer shell (1) is composed of a top cover (11), a wall barrel (12) and a bottom cover (13), and the wall barrel (12) is provided with an X-ray outlet (121); Radiator (4); Low-voltage interface device (10), which is fixedly connected to the top cover (11); X-ray tube (2), one end of which is connected to the low-voltage interface device (10), and the other end of which is fixedly connected to the heat sink (4); High-voltage connection device (8), one end of which is fixedly connected to the top cover (11), and the other end of which is fixedly connected to the radiator (4); An insulating sleeve (7) is fixedly connected to a heat sink (4) at its bottom. The expander (6) is located 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. The expander (6) is fixed by the inner ring retainer (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) includes: High-voltage interface fixing component (81), the high-voltage interface fixing component (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); The high-voltage connecting rod (82) consists of a 50KVPEEK high-voltage rod (821) and a high-voltage interface copper piece (822). The high-voltage interface copper piece (822) is used to fix the other end of the high-voltage connecting device (8) to the heat sink (4). The 50KVPEEK high-voltage rod (821) is 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 core (2) includes: Vacuum glass tube (21), the wall of the vacuum glass tube (21) is provided with a protruding near-hemispherical part which is the X-ray output port of the X-ray tube core (2), and the protruding near-hemispherical part is provided in correspondence with the X-ray outlet (121); The lamp core (22) is the cathode of the X-ray tube core (2) and is located at one end of the vacuum glass tube (21). The lamp core (22) consists of a filament (221), a condenser (222), and a core column (223). The condenser (222) is used to focus the light from the filament (221), and the core column (223) is used to connect the filament (221) to low voltage electricity. The core column (223) is connected to the low voltage interface device (10). The target (23) is the anode of the X-ray tube core (2) and is located 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).

5. The high count rate X-ray tube device according to claim 4, characterized in that, The radiator (4) is provided with: X-ray tube fixing hole (41), the X-ray tube fixing hole (41) is fixedly connected to the copper target (232) of the X-ray tube core (2); Fixing hole (42), the fixing hole (42) is fixedly connected to the insulating sleeve (7); High-voltage connection device fixing hole (43), the high-voltage connection device fixing hole (43) and the high-voltage connection device (8) are fixedly connected 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: The radiator mounting hole (71) is fixed with the mounting hole (42) of the radiator (4) by screws to secure the radiator (4). An opening (72) in the insulating sleeve is an opening through which X-rays pass through the insulating sleeve (7), and is provided 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) includes: Low-voltage interface copper component (101), which is fixedly connected to the low-voltage power supply interface hole (111) of the top cover (11); Insulating fixing rubber plug (102); The low-voltage terminal (103) passes through the low-voltage interface copper piece (101) and is fixed by an insulating fixing plug (102). The low-voltage terminal (103) is connected to the core post (223) of the 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 includes a flange device (3), which is disposed on the wall barrel (12).

9. The high count rate X-ray tube apparatus according to claim 8, characterized in that, The wall barrel (12) is also provided with a flange positioning hole (122); The flange device (3) includes: Flange body (32), wherein the flange body (32) is disposed at the X-ray outlet (121); A positioning hole (31) is provided on the flange body (32), and the positioning hole (31) is correspondingly provided with the flange positioning hole (122); A window (33) is provided on the flange body (32), and the window (33) is provided corresponding to the X-ray outlet (121); A window retaining ring (34) is used to fix the window (33); External device mounting hole (35) is provided on the flange body (32) and is used to fix external devices.

10. The high count rate X-ray tube device according to claim 1, characterized in that, The inner ring retainer (5) includes; Inner ring (51), the inner ring (51) is used to fix the expander (6); A pressure ring (52) is threaded into the inner ring (51) of the outer shell (1).

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