CN219553569U - X-ray tube with integral rotary addressing work - Google Patents
X-ray tube with integral rotary addressing work Download PDFInfo
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- CN219553569U CN219553569U CN202320018715.4U CN202320018715U CN219553569U CN 219553569 U CN219553569 U CN 219553569U CN 202320018715 U CN202320018715 U CN 202320018715U CN 219553569 U CN219553569 U CN 219553569U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Abstract
The utility model discloses an X-ray tube with integral rotary addressing work, which comprises an insulating tube shell, a cathode assembly and an anode assembly, wherein the cathode assembly and the anode assembly are arranged on the insulating tube shell and synchronously rotate with the insulating tube shell. Compared with the existing high-power X-ray source which adopts a vacuum bearing to drive a rotary target, the vacuum bearing has the problems of high technical difficulty, high cost and low heat dissipation efficiency; the whole tube rotary X-ray tube provided by the utility model does not need to adopt a vacuum bearing, is easy to realize and has low cost. Meanwhile, the X-ray tube has a short heat transfer path, can rapidly transfer the heat deposited on the anode target to the outside of the tube shell for cooling and heat dissipation, and greatly improves the heat dissipation efficiency.
Description
Technical Field
The utility model belongs to the technical field of X rays, and particularly relates to an X-ray tube capable of integrally rotating and addressing.
Background
The X-ray source has wide application in the fields of industrial detection, scientific instruments, medical imaging, treatment and the like. The electron beam impinges on the target material in an X-ray source to generate X-rays. Most of the electron beam power is finally deposited in the target in the form of heat, and if the electron beam power is too high, the target is destroyed, so the heat management of the X-ray conversion target belongs to one of the core technologies of the X-ray source.
In order to increase the power of the X-ray source, a rotating target technology is generally adopted, the power density of the rotating target can be effectively reduced, but the rotating target needs to adopt a bearing in vacuum, and the vacuum bearing is not only expensive, but also has very limited heat dissipation efficiency, so that the heat dissipation efficiency of the X-ray source is greatly limited.
Disclosure of Invention
Therefore, in order to solve the problems of high difficulty and high cost of a vacuum bearing technology existing in the prior high-power X-ray source by adopting a rotary target technology, the utility model provides an X-ray tube which is integrally and rotationally addressed. The utility model adopts the whole tube rotation to replace the rotation of the vacuum inner target, thereby avoiding the use of a vacuum bearing.
The utility model is realized by the following technical scheme:
an X-ray tube with integral rotary addressing comprises an insulating tube shell, a cathode assembly and an anode assembly, wherein the cathode assembly and the anode assembly are arranged on the insulating tube shell, and the cathode assembly and the anode assembly rotate synchronously with the insulating tube shell.
Compared with the existing high-power X-ray source which adopts a vacuum bearing to drive a rotary target, the vacuum bearing has the problems of high technical difficulty, high cost and low heat dissipation efficiency; the whole tube rotary X-ray tube provided by the utility model does not need to adopt a vacuum bearing, is easy to realize and has low cost. Meanwhile, the X-ray tube has a short heat transfer path, can rapidly transfer the heat deposited on the anode target to the outside of the tube shell for cooling and heat dissipation, and greatly improves the heat dissipation efficiency.
As a preferred embodiment, the X-ray tube of the present utility model further comprises a control module; the control module controls the cathodes in the cathode assembly to rotate to a preset position to emit electrons. The X-ray tube of the utility model can emit X-ray light at a fixed position relative to an imaging system through the cathode with selectable addresses, thereby improving the performance.
As a preferred embodiment, the cathode assembly of the present utility model comprises a cathode tube housing, and a circumferentially uniformly arranged cathode array, focusing electrode and feeding electrode mounted on the cathode tube housing;
the feed electrode is used for feeding all cathodes in the cathode array;
the cathode is used for emitting electrons;
the focusing electrode is used for focusing electrons emitted by the cathode.
As a preferred embodiment, the control module of the present utility model employs a gated magnetic field; the control module is fixedly arranged outside the cathode tube shell.
As a preferred embodiment, the anode assembly of the present utility model comprises an anode cartridge, a liquid metal target, and a target cartridge;
the liquid metal target and the target cylinder are arranged in the anode tube shell;
the anode tube shell rotates under the drive of the drive module, so that the whole X-ray tube is driven to integrally rotate.
As a preferred embodiment, the drive module of the present utility model comprises a bearing assembly and a drive motor;
the rotor in the bearing assembly is connected with the anode tube shell;
the drive motor drives the rotor in the bearing assembly to rotate, thereby driving the anode casing to rotate.
As a preferred embodiment, electrons emitted by the cathode assembly of the present utility model bombard the surface of the liquid metal target, generating X-rays;
most of the power carried by the electron beam is deposited in the liquid target and is cooled by heat conduction to the outside of the anode tube housing.
As a preferred embodiment, the X-rays of the present utility model are output by reflection or projection.
As a preferred embodiment, an accelerating electric field is applied between the cathode assembly and the anode assembly of the present utility model for accelerating electrons.
As a preferred embodiment, the accelerating electric field of the present utility model is accelerated by an electrostatic field or a microwave field.
The utility model has the following advantages and beneficial effects:
the X-ray tube provided by the utility model synchronously rotates with the insulating tube shell through the cathode assembly and the anode assembly, realizes the whole tube rotation, and can be realized only by adopting a common liquid lubrication bearing, thereby avoiding the use of a vacuum bearing, being convenient to realize and reducing the cost.
The X-ray tube provided by the utility model can emit X-rays at a fixed position relative to an imaging system through the cathode with the optional address.
The X-ray tube provided by the utility model can transfer the heat deposited in the liquid metal target to the outside of the tube shell for cooling and heat dissipation only through a short heat transfer path, and the heat dissipation efficiency is greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:
fig. 1 is a schematic diagram of the operation of a conventional rotary target X-ray tube.
Fig. 2 is a schematic diagram of a heat dissipation path of a conventional rotary target X-ray tube.
Fig. 3 is a schematic structural diagram of an X-ray tube with integral rotary addressing operation according to an embodiment of the present utility model.
Fig. 4 is a schematic diagram of a heat dissipation path of an X-ray tube for integrally rotating addressing operation in accordance with an embodiment of the present utility model.
In the drawings, the reference numerals and corresponding part names:
1-bearing assembly, 2-support bar, 3-target base, 4-anode target, 5-electron beam, 6-X-ray, 7-insulation tube shell, 8-cathode tube, 9-cathode, 10-cathode tube shell, 11-feed electrode, 12-control module, 13-anode tube, 14-liquid metal target, 15-anode tube shell, 16-rotor support, 17-bearing, 18-drive motor, 19-heat transfer direction.
Detailed Description
Hereinafter, the terms "comprises" or "comprising" as may be used in various embodiments of the present utility model indicate the presence of inventive functions, operations or elements, and are not limiting of the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the utility model, the terms "comprises," "comprising," and their cognate terms are intended to refer to a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be interpreted as first excluding the existence of or increasing likelihood of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the utility model, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B or may include both a and B.
Expressions (such as "first", "second", etc.) used in the various embodiments of the utility model may modify various constituent elements in the various embodiments, but the respective constituent elements may not be limited. For example, the above description does not limit the order and/or importance of the elements. The above description is only intended to distinguish one element from another element. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present utility model.
It should be noted that: if it is described to "connect" one component element to another component element, a first component element may be directly connected to a second component element, and a third component element may be "connected" between the first and second component elements. Conversely, when one constituent element is "directly connected" to another constituent element, it is understood that there is no third constituent element between the first constituent element and the second constituent element.
The terminology used in the various embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the utility model. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the utility model belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having a meaning that is the same as the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in connection with the various embodiments of the utility model.
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.
Examples
As shown in fig. 1-2, in the existing X-ray tube adopting the rotary target technology, the anode target 4 and the bearing assembly are both arranged in an insulating tube shell, so that a vacuum bearing is needed, however, the vacuum bearing is difficult to realize technically and has high cost; therefore, in view of the above problems, the present embodiment provides an X-ray tube with integral rotary addressing, and the X-ray tube provided in this embodiment adopts a tube-through rotation technology, that is, the anode assembly is directly mounted on the tube shell of the X-ray tube and rotates synchronously with the tube shell, so that the use of a vacuum bearing is avoided, and the use is easy to implement and the cost is low.
As shown in fig. 3, the X-ray tube proposed in this embodiment mainly includes an insulating tube housing 7, a cathode assembly, an anode assembly, a control module 12, a driving module, and the like.
Wherein, cathode assembly and anode assembly all install on insulating tube shell 7, and cathode assembly and anode assembly rotate with insulating tube shell 7 is synchronous, so realize the whole tube rotation of X-ray tube, this structure only adopts ordinary liquid lubrication bearing can realize to avoided vacuum bearing's use, be convenient for implement and with low costs.
The cathode assembly of this embodiment is mainly composed of the cathode tube 8, the cathode 9, the cathode tube case 10, the feed electrode 11, the focus electrode, and the like. The cathode casing 8, the cathode 9, the feeding electrode 11 and the focusing electrode (not shown in the figure) are all disposed on the cathode casing 10, and cathode arrays are uniformly arranged on the circumference of the cathode casing 10.
The feeding electrode 11 is used to feed all cathodes 9, which are in a standby state. In order to ensure that X-rays are emitted at a fixed position each time when the whole tube is rotated, the present embodiment allows electrons to be emitted only by the cathode rotated to a predetermined position (angle) through the control module.
The anode assembly of this embodiment is mainly composed of the anode cylinder 13, the liquid metal target 14, the anode cartridge 15, and the like. The anode cartridge 13 and the liquid metal target 14 are both disposed within an anode cartridge 15.
The material of the liquid metal target 14 of this embodiment is a high atomic number, low melting point lead-based alloy material, including but not limited to gallium indium lead alloy.
A high voltage is applied between the cathode assembly and the anode assembly to form an accelerating electric field of electrons. The accelerating electric field of the present embodiment may be electrostatic acceleration or microwave field acceleration of an accelerating tube.
The drive module of the present embodiment is mainly composed of components such as a bearing assembly (rotor support 16, bearing 17, and rotor) and a drive motor 18. Wherein, the rotor of bearing assembly and anode tube shell 15 fixed connection, driving motor 18 drive rotor rotates to drive anode tube shell synchronous rotation, and then realize whole tub rotation.
The working principle of the X-ray tube of this embodiment is specifically:
the whole pipe starts to rotate under the drive of the driving module;
the cathode rotated to a preset angle emits electrons under the control of the control module 12;
the electron beam 5 flies to the liquid metal target 14 under the acceleration of the accelerating electric field and the focusing of the focusing electrode, and bombards the surface of the liquid metal target 14 to generate X-rays 6;
the X-rays 6 exit through a window, in this embodiment the X-rays 6 occur through a transmissive window, and in a further preferred embodiment the X-rays 6 also occur through a reflective window.
Most of the heat carried by the electron beam is deposited in the anode target, as shown in fig. 2, the existing high-power X-ray source adopts a vacuum bearing driven rotary target technology, and the heat deposited in the anode target must pass through a long conduction path of the target-bearing assembly to reach the outside of the tube shell, so that the heat dissipation efficiency of the X-ray tube is low. However, in the integrally rotating X-ray tube according to the present embodiment, as shown in fig. 4, the heat deposited in the anode target can reach the outside of the tube shell to cool and dissipate the heat (for example, the heat is taken away by the insulating oil outside the tube shell to realize cooling), so that the heat dissipation efficiency is much higher than that of the conventional rotating anode target tube.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The utility model provides an X-ray tube of whole rotatory addressing work, includes insulating tube shell, cathode assembly and anode assembly, its characterized in that, cathode assembly and anode assembly all set up insulating tube shell is last, just cathode assembly and anode assembly with insulating tube shell synchronous rotation.
2. An integrally rotary addressed X-ray tube as claimed in claim 1, further comprising a control module; the control module controls the cathodes in the cathode assembly to rotate to a preset position to emit electrons.
3. An integrally rotary addressed operating X-ray tube according to claim 2, wherein said cathode assembly comprises a cathode tube housing and a circumferentially uniformly arranged cathode array, focusing electrode and feed electrode mounted on the cathode tube housing;
the feed electrode is used for feeding all cathodes in the cathode array;
the cathode is used for emitting electrons;
the focusing electrode is used for focusing electrons emitted by the cathode.
4. An integrally rotary addressed X-ray tube as claimed in claim 3, wherein said control module employs a grid-controlled magnetic field; the control module is fixedly arranged outside the cathode tube shell.
5. An integrally rotary addressed operating X-ray tube according to claim 1 or 2, wherein said anode assembly comprises an anode tube housing, a liquid metal target and a target cylinder;
the liquid metal target and the target cylinder are arranged in the anode tube shell;
the anode tube shell rotates under the drive of the drive module, so that the whole X-ray tube is driven to integrally rotate.
6. The integrally rotary addressed operating X-ray tube of claim 5, wherein said drive module comprises a bearing assembly and a drive motor;
the rotor in the bearing assembly is connected with the anode tube shell;
the drive motor drives the rotor in the bearing assembly to rotate, thereby driving the anode casing to rotate.
7. The integrally rotary addressed X-ray tube of claim 5 wherein electrons emitted by said cathode assembly bombard the surface of said liquid metal target, generating X-rays;
most of the power carried by the electron beam is deposited in the liquid metal target and is cooled by heat conduction to the outside of the anode tube housing.
8. An integrally rotationally addressed operating X-ray tube according to claim 3, characterized in that the X-rays are output by reflection or projection.
9. An integrally rotary addressed operating X-ray tube according to claim 1 or 2, characterized in that an accelerating electric field is applied between the cathode assembly and the anode assembly for accelerating electrons.
10. An integrally rotationally addressed operating X-ray tube according to claim 9, said accelerating electric field being accelerated by an electrostatic field or by a microwave field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320018715.4U CN219553569U (en) | 2023-01-05 | 2023-01-05 | X-ray tube with integral rotary addressing work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320018715.4U CN219553569U (en) | 2023-01-05 | 2023-01-05 | X-ray tube with integral rotary addressing work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219553569U true CN219553569U (en) | 2023-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320018715.4U Active CN219553569U (en) | 2023-01-05 | 2023-01-05 | X-ray tube with integral rotary addressing work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219553569U (en) |
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2023
- 2023-01-05 CN CN202320018715.4U patent/CN219553569U/en active Active
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