CN220491832U - X-ray tube with diamond anode target surface - Google Patents
X-ray tube with diamond anode target surface Download PDFInfo
- Publication number
- CN220491832U CN220491832U CN202321666367.8U CN202321666367U CN220491832U CN 220491832 U CN220491832 U CN 220491832U CN 202321666367 U CN202321666367 U CN 202321666367U CN 220491832 U CN220491832 U CN 220491832U
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- China
- Prior art keywords
- anode
- target surface
- target
- ray tube
- positioning
- Prior art date
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Links
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 19
- 239000010432 diamond Substances 0.000 title claims abstract description 19
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 12
- 239000010937 tungsten Substances 0.000 claims abstract description 12
- 239000011521 glass Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000013077 target material Substances 0.000 claims description 2
- 238000002679 ablation Methods 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000004070 electrodeposition Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010884 ion-beam technique Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002594 fluoroscopy Methods 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- X-Ray Techniques (AREA)
Abstract
The utility model relates to the technical field of X rays, in particular to an X-ray bulb tube with a diamond anode target surface, wherein the two ends of the inside of the glass bulb tube are respectively fixedly provided with an anode and a cathode; the anode target is fixedly connected with the anode, and two first target surfaces and two second target surfaces are arranged towards the cathode part and staggered in a step shape; the cathode part is provided with two groups of tungsten wires which are used for respectively and independently emitting electrons to the first target surface and the second target surface; the service life of the X-ray tube damaged by ablation is prolonged.
Description
Technical Field
The utility model relates to the technical field of X rays, in particular to an X-ray tube with a diamond anode target surface.
Background
X-ray tubes are capable of generating X-rays and are used for various medical imaging examinations such as X-ray fluoroscopy, pelvis, chest, abdomen, etc.
An X-ray tube including an anode 30, a cathode portion 20; wherein the cathode part 20 is connected with a cathode circuit, and the tungsten wire 21 generates free electrons; an anode 30 that attracts electrons; electrons strike the primary target surface 30A of the anode 30 to generate X-rays; the existing anode 30 can rotate, and the rotating primary target surface 30A is impacted by electrons in turn, so that the electrons impact the primary target surface 30A at high frequency, thereby ablating and further causing damage.
The present application is directed to how to mitigate damage to an X-ray tube from ablation.
Disclosure of Invention
The utility model provides an X-ray tube with a diamond anode target surface, which mainly solves the following problems: how to slow down the damage of the X-ray tube caused by ablation.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:
an X-ray tube with diamond anode target surface,
the two ends of the inner part of the glass bulb tube are respectively fixedly provided with an anode and a cathode;
the anode target is fixedly connected with the anode, and a first target surface and a second target surface are arranged towards the cathode part and staggered in a step shape;
the cathode part is provided with two groups of tungsten wires which are used for respectively and independently emitting electrons to the first target surface and the second target surface.
Further, a focusing cover is arranged at the tungsten wire and is positioned at one side of the tungsten wire far away from the anode target, the focusing cover is an arc surface, and the cover of the focusing cover faces the target surface.
Further, the end face of the anode facing the cathode part is provided with a sink; the anode target is positioned in the sink;
the anode is provided with a positioning component; the anode target is provided with a positioning groove part; wherein, the positioning component and the positioning groove are spliced and matched;
comprises at least two groups of positioning parts and positioning groove parts.
Further, the positioning component is fixedly arranged on the peripheral wall of the sinking groove, and the positioning groove part is arranged on the periphery of the anode target; wherein, the locating component, constant head tank portion quantity equals.
Further, the contact surface of the positioning part and the positioning groove part is an arc surface.
Further, the anode target material is diamond.
The beneficial effects of the utility model are as follows:
in one mode, a tungsten wire 21 is used first, electrons generated by the tungsten wire are impacted to the first target surface 41, and after the first target surface is impacted to cause ablation, the quality of detection is affected. The other tungsten filament 21 is activated so that electrons generated by it strike the second target surface 42. It should be noted that only one tungsten wire 21 is turned on at a time. Because the anode target 40 is provided with the first target surface 41 and the second target surface 42 which are staggered in a step shape, compared with a single target surface in the prior art, the service life is doubled; overall, the lifetime of the X-ray tube, which is damaged by ablation, is prolonged.
In the second way, the two tungsten wires 21 are opened at intervals according to a preset interval length, so that the first target surface 41 or the second target surface 42 is not impacted and ablated by electrons continuously for a long time, and the service life of a single target surface (the first target surface 41 or the second target surface 42) is prolonged. Overall, the lifetime of the X-ray tube, which is damaged by ablation, is prolonged.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic view of the structure of the application itself;
fig. 3 is a schematic structural view of an anode 30;
fig. 4 is a schematic structural view of an anode target 40;
FIG. 5 is a schematic diagram of a combination of anode target 40, anode 30;
reference numeral control table:
a glass bulb 10;
a cathode portion 20, a tungsten wire 21, and a focus mask 22;
anode 30, original target surface 30A, sink 31, positioning member 32;
an anode target 40, a first target surface 41, a second target surface 42, and a positioning groove 43;
61 rotor, 62 stator.
Detailed Description
Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
In order to make the contents of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
An X-ray tube with diamond anode target surface,
referring to fig. 2, an anode 30 and a cathode 20 are fixedly disposed at both ends of the inside of the glass bulb 10;
the anode target 40 is fixedly connected with the anode 30, the anode target 40 is provided with a first target surface 41 and a second target surface 42 towards the cathode part 20, and the first target surface 41 and the second target surface 42 are staggered in a step shape; the first target surface 41 and the second target surface 42 are each for receiving electrons generated by the cathode portion 20, and the electrons strike the first target surface 41 or the second target surface 42 to generate X-rays.
The cathode portion 20 has two sets of tungsten filaments 21, and the two sets of tungsten filaments 21 are configured to emit electrons to the first target surface 41 and the second target surface 42, respectively, independently.
Principle of: there are two modes of use.
In one mode, a tungsten wire 21 is used first, electrons generated by the tungsten wire are impacted to the first target surface 41, and after the first target surface is impacted to cause ablation, the quality of detection is affected. The other tungsten filament 21 is activated so that electrons generated by it strike the second target surface 42. It should be noted that only one tungsten wire 21 is turned on at a time. Since the anode target 40 has two first and second targets 41, 42 staggered stepwise, the lifetime is doubled compared to a single target of the prior art.
In the second way, the two tungsten wires 21 are opened at intervals according to a preset interval length, so that the first target surface 41 or the second target surface 42 is not impacted and ablated by electrons continuously for a long time, and the service life of a single target surface (the first target surface 41 or the second target surface 42) is prolonged. The service life of the X-ray tube damaged by ablation is prolonged.
Further, a focusing cover 22 is arranged at the tungsten wire 21, the focusing cover 22 is positioned at one side of the tungsten wire 21 far away from the anode target 40, the focusing cover 22 is an arc surface, and the cover of the focusing cover 22 faces the target surface (a first target surface 41 and a second target surface 42); the focus mask 22 is used to focus electrons generated by the tungsten filament 21.
Further, the end surface of the anode 30 facing the cathode part 20 is provided with a sink 31; the anode target 40 is positioned in the sink 31;
the anode 30 is provided with a positioning member 32; the anode target 40 is provided with a positioning groove part 43; wherein, the positioning component 32 and the positioning groove part 43 are in plug-in fit;
at least two groups of positioning components 32 and positioning groove parts 43; so that the anode target 40, anode 30 are positioned accurately when assembled.
Further, the positioning member 32 is fixedly provided on the outer peripheral wall of the immersion tank 31, and the positioning groove portion 43 is provided on the outer periphery of the anode target 40; the number of the positioning members 32 and the number of the positioning groove portions 43 are equal.
Further, the contact surface between the positioning member 32 and the positioning groove 43 is an arc surface.
Further, the anode target 40 is made of diamond. The advantage of "diamond has relatively low atomic number, so that it has relatively small electron energy loss in terms of material science, so that it can raise yield and conversion efficiency of target surface. Diamond is the hardest natural substance on the earth, has the characteristics of high hardness, high strength and high thermal conductivity, can bear high-energy ion beam impact, and can not generate thermal expansion, so that the deformation of materials in high-energy environments such as ion beam processing and the like can be reduced. In addition, the anode target 40 may be fixedly connected to the anode 30 by electrochemical deposition; the specific procedure is as follows, "diamond target is typically immobilized to the anode by electrochemical deposition. The method specifically comprises the following steps: 1. a slightly concave plane is polished on the anode to make the surface smooth and scratch-free, and the surface is uniformly coated with conductive material. 2. And (3) spraying an etchant on the surface of the diamond target surface to roughen the surface of the diamond target surface, and increasing the adhesion between the target surface and the anode. 3. The target surface is coated with a layer of adhesive, which may be any suitable adhesive, such as a hot melt adhesive, epoxy, or the like, and is placed on the anode surface so that the target surface is in contact with the anode surface. 4. High-purity solution of chromium sulfate, copper sulfate and the like is used as electrolyte for electrolytic deposition. In the electrolyte, the anode is used as electrolyte to perform oxidation reaction under the action of an electric field, and the surface of the anode coated with the conductive material is electrochemically oxidized to form an oxide film, so that the diamond target surface is firmly fixed on the anode. 5. And connecting the anode with a power supply, performing electrolytic deposition until the diamond target surface is firmly fixed, then closing the power supply, taking out the fixed anode, and removing redundant adhesive. The adhesion between the target surface and the anode can be optimized by fixing the diamond target surface in an electrochemical deposition mode, and unstable conditions such as detachment and the like of the target surface due to long-time use are reduced. Meanwhile, the method is simple and feasible, can be used for large-scale production, and reduces the production cost, so that the method is widely applied to actual production. "
The above description is illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, but is to be accorded the full scope of the claims.
Claims (6)
- An x-ray tube, characterized in that,the two ends of the inner part of the glass bulb tube are respectively fixedly provided with an anode and a cathode;the anode target is fixedly connected with the anode, and a first target surface and a second target surface are arranged towards the cathode part and staggered in a step shape;the cathode part is provided with two groups of tungsten wires which are used for respectively and independently emitting electrons to the first target surface and the second target surface;the first target surface and the second target surface are made of diamond materials.
- 2. An X-ray tube according to claim 1, wherein,the tungsten filament is provided with a focusing cover, the focusing cover is positioned on one side of the tungsten filament away from the anode target, the focusing cover is an arc surface, and the cover of the focusing cover faces the target surface.
- 3. An X-ray tube according to claim 1 or 2, characterized in that,the end face of the anode facing the cathode part is provided with a sinking groove; the anode target is positioned in the sink;the anode is provided with a positioning component; the anode target is provided with a positioning groove part; wherein, the positioning component and the positioning groove are spliced and matched;comprises at least two groups of positioning parts and positioning groove parts.
- 4. An X-ray tube according to claim 3, wherein,the positioning part is fixedly arranged on the peripheral wall of the sinking groove, and the positioning groove part is arranged on the periphery of the anode target; wherein, the locating component, constant head tank portion quantity equals.
- 5. An X-ray tube according to claim 1, wherein,the contact surface of the positioning part and the positioning groove part is an arc surface.
- 6. An X-ray tube according to claim 1, wherein,the anode target material is diamond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321666367.8U CN220491832U (en) | 2023-06-28 | 2023-06-28 | X-ray tube with diamond anode target surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321666367.8U CN220491832U (en) | 2023-06-28 | 2023-06-28 | X-ray tube with diamond anode target surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220491832U true CN220491832U (en) | 2024-02-13 |
Family
ID=89830821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321666367.8U Active CN220491832U (en) | 2023-06-28 | 2023-06-28 | X-ray tube with diamond anode target surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220491832U (en) |
-
2023
- 2023-06-28 CN CN202321666367.8U patent/CN220491832U/en active Active
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