X-ray tubes and systems thereof

Abstract

An X-ray tube according to one embodiment may include: an electron gun; an anode surrounded by a conductive material and including a tip that is irradiated by electrons emitted from the electron gun and emits X-rays; the housing includes a first receptacle and a second receptacle, wherein the first receptacle is made of the conductive material and connected to the electron gun, the second receptacle is joined to the first receptacle and together with the first receptacle defines an internal space for accommodating the anode; the first receptacle includes a sidewall connected to the electron gun and a lower wall formed perpendicular to the sidewall; and an irradiation window formed on the lower wall of the first receptacle and leading the X-rays emitted from the tip to the outside of the housing, wherein the direction of movement of the X-rays emitted from the tip may be configured to traverse the direction of movement of the electrons emitted from the electron gun.

Description

Technical Field

[0001] This disclosure relates to an X-ray tube and a system including the same.

[0002] This disclosure originates from research conducted as part of the "Mid-term Enterprise DNA Integration Industry-Academia Collaboration Project" undertaken by the Ministry of Trade, Industry and Energy of Korea and the Korea Institute of Industrial Technology Promotion (KIAT). Background Technology

[0003] X-rays are electromagnetic waves with excellent penetrating power, allowing for non-destructive and non-contact observation of the internal structures of objects or the human body. Electrons emitted from the cathode are accelerated by the anode and strike the tungsten anode target. Only a small fraction (less than 1%) of the electrical energy applied to the X-ray tube is emitted as X-rays from the anode target. The X-rays emitted from the anode are guided to the outside of the X-ray tube, enabling non-destructive and non-contact observation of the internal structures of objects or the human body. Summary of the Invention

[0004] Technical problems to be solved This disclosure provides a technique relating to an X-ray tube and a system including the same.

[0005] Solution to the problem One aspect of this disclosure provides an embodiment of an X-ray tube. According to one embodiment, the X-ray tube includes: an electron gun; an anode surrounded by a conductive material and including a tip irradiated by electrons emitted from the electron gun and emitting X-rays; a housing including a first receptacle and a second receptacle, wherein the first receptacle is made of the conductive material and connected to the electron gun, the second receptacle is joined to the first receptacle and, together with the first receptacle, defines an internal space for accommodating the anode; the first receptacle includes a sidewall connected to the electron gun and a lower wall formed perpendicular to the sidewall; and an irradiation window formed on the lower wall of the first receptacle and leading the X-rays emitted from the tip to the outside of the housing, wherein the direction of movement of the X-rays emitted from the tip can be configured to traverse the direction of movement of the electrons emitted from the electron gun.

[0006] In one embodiment, at the junction where the first and second receptacles are joined, the distance from the outer peripheral surface of the anode to the first receptacle may be greater than the distance from the outer peripheral surface of the anode to the second receptacle.

[0007] In one embodiment, the anode may include: a first portion located within the housing on the side of the second accommodating body; a second portion located within the housing on the side of the irradiation window; and a third portion located between the first portion and the second portion, wherein the first portion, the second portion, and the third portion are arranged side by side along the length direction, and the perimeter of the third portion may be smaller than the perimeter of the first portion and the perimeter of the second portion.

[0008] In one embodiment, the outer perimeters of the first portion and the second portion may be the same.

[0009] In one embodiment, the second container may be made of an insulator.

[0010] In one embodiment, the second container may be made of ceramic.

[0011] In one embodiment, the illumination window may be integral with the first accommodating body.

[0012] In one embodiment, the illumination window may be formed of at least one selected from Be, Al, or Ti.

[0013] In one embodiment, the tip may be configured at an angle relative to the emission direction of the electrons emitted from the electron gun.

[0014] Another aspect of this disclosure is that the tip can be configured at an angle relative to the emission direction of the electrons emitted from the electron gun.

[0015] One aspect of this disclosure provides an embodiment of an X-ray tube system. According to one embodiment of an X-ray tube system, the X-ray tube system includes: a plurality of X-ray tubes, each of the plurality of X-ray tubes including: an electron gun; an anode surrounded by a conductive material, the anode including a tip irradiated by electrons emitted from the electron gun and emitting X-rays; a housing including a first receptacle and a second receptacle, wherein the first receptacle is made of the conductive material and connected to the electron gun, the second receptacle is joined to the first receptacle and together with the first receptacle defines an internal space for receiving the anode, the first receptacle including a sidewall connected to the electron gun and... The X-ray tube system further includes: a lower wall formed perpendicular to the sidewall; and an irradiation window formed on the lower wall of the first housing, which guides the X-rays emitted from the tip to the outside of the housing; the X-ray tube system also includes: a slit for each X-ray to pass through and adjust the respective irradiation field of the X-rays; and a detector that receives each X-ray emitted from the plurality of X-ray tubes, wherein the plurality of X-ray tubes are arranged side by side on a plane parallel to the detector, and the respective movement direction of the X-rays can traverse the respective movement direction of the electrons emitted from the electron gun.

[0016] In one embodiment, the plurality of X-ray tubes may include three or more X-ray tubes, each of which irradiates the detector with X-rays.

[0017] In one embodiment, the intensities of the X-rays may be different from each other.

[0018] In one embodiment, among the three or more X-ray tubes, the intensity of the X-rays emitted from the X-ray tube located between the other two X-ray tubes can be the greatest.

[0019] The effects of the invention According to one embodiment of this disclosure, multiple X-ray tubes can be arranged more densely inside an X-ray monolith.

[0020] According to one embodiment of this disclosure, the electric field directions of the X-ray tubes can be arranged in the same direction.

[0021] According to one embodiment of this disclosure, the X-ray exposure of an object or human body at different locations can be easily adjusted.

[0022] According to one embodiment of this disclosure, more accurate diagnostic images can be provided.

[0023] The effects of the technology disclosed herein are not limited to those mentioned above. Other effects not mentioned will be clearly understood by those skilled in the art from the description in this disclosure. Attached Figure Description

[0024] Figure 1 This is a perspective view of an X-ray tube according to an embodiment of the present disclosure.

[0025] Figure 2 It is along Figure 1 A cross-sectional view of an X-ray tube cut along line A-A'.

[0026] Figure 3 This is a schematic diagram of an X-ray tube system including multiple X-ray tubes according to an embodiment of the present disclosure.

[0027] Figure 4 This is a cross-sectional view of an X-ray tube system including multiple X-ray tubes according to an embodiment of the present disclosure.

[0028] Figure 5 This is a top perspective view of an X-ray tube according to an embodiment of the present disclosure.

[0029] Figure 6 This is a perspective view of the back of an X-ray tube according to an embodiment of the present disclosure.

[0030] Figure 7 It is along Figure 5 A three-dimensional cross-sectional view of an X-ray tube cut along line B-B'.

[0031] Figure 8 This is a schematic diagram showing the focal trajectory of the light source position of an X-ray tube according to an embodiment of the present disclosure. Detailed Implementation

[0032] The embodiments disclosed herein are illustrated for the purpose of demonstrating the technical ideas of this disclosure. The scope of this disclosure is not limited to the embodiments presented below or the detailed description of these embodiments.

[0033] Unless otherwise defined, all technical and scientific terms used in this disclosure have the meanings commonly understood by one of ordinary skill in the art to which this disclosure pertains. All terms used in this disclosure have been selected for the purpose of clearly describing this disclosure and are not intended to limit the scope of the claims under this disclosure.

[0034] Unless otherwise mentioned in a phrase or sentence containing such a statement, expressions such as “comprising,” “possessing,” and “having” as used in this disclosure should be understood as open-ended terms that may include the possibility of other embodiments.

[0035] Unless otherwise stated, the singular form of a statement recorded in this disclosure may include the meaning of the plural form, and this also applies to the singular form of a statement recorded in the claims.

[0036] The terms “first”, “second”, etc., used in this disclosure are used to distinguish multiple constituent elements from each other, and do not limit the order or importance of the constituent elements.

[0037] In this disclosure, when a constituent element is referred to as being “connected” or “accessed” to another constituent element, it should be understood that the constituent element can be directly connected to or accessed to the other constituent element, or can be connected or accessed through a new constituent element as a medium.

[0038] The dimensions and values ​​described in this disclosure are not limited to the dimensions and values ​​described therein. Unless otherwise specified, these dimensions and values ​​are to be understood as referring to the values ​​described and equivalent ranges including those values. For example, the dimension “50 mm” described in this disclosure may be understood to include “about 50 mm”.

[0039] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. In the drawings, the same or corresponding components are given the same reference numerals. Furthermore, in the following description of the embodiments, repeated descriptions of the same or corresponding components may be omitted. However, even if the description of a component is omitted, it does not mean that the component is not included in any embodiment.

[0040] Figure 1 This is a perspective view of an X-ray tube 100 according to an embodiment of the present disclosure. Figure 2 It is based on the provisions of this disclosure. Figure 1 A cross-sectional view of the X-ray tube 100 taken along line A-A'. (Refer to...) Figure 1 and Figure 2 The X-ray tube 100 may include an electron gun 120, an anode 130, a housing 140, and an irradiation window 150.

[0041] In one embodiment, the electron gun 120 generates electrons and emits them toward the anode 130. A cold cathode electron tube, which emits electrons due to a potential difference in the electric field, may be disposed inside the electron gun 120. The electron gun 120 is connected to the internal space of the housing 140 and may be sealed relative to the outside of the X-ray tube 100.

[0042] In one embodiment, the anode 130 may be a positive electrode. The anode 130 may be surrounded by a conductive material. The anode 130 may have an emission direction D perpendicular to the electron emission direction from the electron gun 120. eThe anode 130 extends in the direction of length (hereinafter, the longitudinal direction). Specifically, the anode 130 may include: a first portion 13A located on the side of the second housing 142 of the housing 140; a second portion 13B located on the opposite side of the first portion 13A, i.e., on the side of the lower wall 141b of the first housing 141; and a third portion 13C located between the first portion 13A and the second portion 13B. The first portion 13A, the third portion 13C, and the second portion 13B may be arranged side by side in sequence along the longitudinal direction. The perimeters of the outer peripheral surfaces of the first portion 13A, the second portion 13B, and the third portion 13C may be different from each other. Specifically, the perimeter of the outer peripheral surface of the third portion 13C may be smaller than the perimeters of the outer peripheral surfaces of the first portion 13A and the second portion 13B. When the gap between the anode 130 and the housing 140 is narrow, pinhole defects may occur, allowing electrons or high-energy substances to penetrate the wall of the housing 140. Therefore, by minimizing the circumference of the outer peripheral surface of the third portion 13C, which is disposed closest to the second housing 142 of the housing 140, the gap between the anode 130 and the housing 140 can be ensured, and pinhole defects can be prevented. In this case, the circumferences of the outer peripheral surfaces of the first portion 13A and the second portion 13B can be the same. That is, only the central portion of the cylindrical anode 130 (e.g., the third portion 13C) can be formed as a recess.

[0043] In one embodiment, the anode 130 may include a base portion 131 and a tip portion 132. The base portion 131 may correspond to a longitudinally oriented column with a first portion 13A, a second portion 13B, and a third portion 13C. A high voltage may be applied to the base portion 131. The tip portion 132 may correspond to the end portion of the anode 130 formed on the side of the second portion 13B of the base portion 131. The electron gun 120 may fire electrons toward the tip portion 132. The incident electrons strike the tip portion 132 at high speed, and the kinetic energy of the electrons can be converted into X-rays and thermal energy. Through this energy conversion, X-rays can be emitted from the tip portion 132. The X-rays generated from the tip portion 132 can be emitted to the outside through the irradiation window 150. (See reference...) Figure 2 The direction of electron emission D e With respect to the direction of movement of X-rays D x They can be perpendicular to each other. To make the electron emission direction D... e With respect to the direction of movement of X-rays D x Perpendicular to each other, the tip 132 can be positioned relative to the electron emission direction D. e It is configured in an inclined manner. That is, the reflective surface of the tip 132 can be positioned relative to the electron emission direction D. e Configured in a tilted manner.

[0044] In one embodiment, the housing 140 may include a first receptacle 141 and a second receptacle 142. The first receptacle 141 is made of a conductive material and may surround the periphery of the anode 130, particularly the periphery of the second portion 13B including the tip 132. The first receptacle 141 may include: a sidewall 141a surrounding the outer peripheral surface of the anode 130; and a lower wall 141b formed perpendicular to the direction in which X-rays are drawn out from the anode 130. The lower wall 141b may be formed perpendicular to the sidewall 141a. The first receptacle 141 may be connected to the electron gun 120.

[0045] In one embodiment, the first receptacle 141 and the second receptacle 142 can be joined together to define an internal space S for accommodating the anode 130. The housing 140 may also include a receptacle joint 14A where the first receptacle 141 and the second receptacle 142 contact each other. At a position corresponding to the receptacle joint 14A, the distance L1 from the outer peripheral surface of the anode 130 to the first receptacle 141 may be greater than the distance L2 from the outer peripheral surface of the anode 130 to the second receptacle 142. Specifically, at a position corresponding to the receptacle joint 14A, the first receptacle 141 may be formed in a manner that surrounds the second receptacle 142. By forming the first receptacle 141 in a manner that surrounds the second receptacle 142, the electric field can be easily maintained even if the energy of the internal space S increases. Furthermore, by forming the first receptacle 141 in a manner that surrounds the second receptacle 142, the internal space S in the region surrounding the tip 132 of the anode 130 can be expanded. Therefore, an anode 130 with a larger diameter (circumference) can be configured inside the housing 140.

[0046] In one embodiment, the first container 141 may be made of metal. Specifically, the first container 141 may be formed of Kovar alloy, which is an alloy of iron, nickel, and cobalt. Since the first container 141, made of metal, is grounded, secondary electrons and / or scattered electrons generated by the electron beam are emitted through the corresponding grounded portion, thereby stably driving the X-ray source. Thus, the X-ray tube 100 according to one embodiment can stably extract high-voltage and high-power X-rays.

[0047] In one embodiment, the second container 142 may be made of an insulator. Specifically, the second container 142 may be made of ceramic. By making the second container 142 an insulator, specifically made of ceramic, the insulation effect can be maximized, and the vacuum state of the internal space S can be easily maintained.

[0048] In one embodiment, the irradiation window 150 functions to guide X-rays emitted from the tip 132 of the anode 130 to the outside of the housing 140, i.e., to the outside of the X-ray tube 100. The irradiation window 150 may be formed on the lower wall 141b of the first housing 141. In one embodiment, the irradiation window 150 may be made of the same material as the first housing 141. In one embodiment, the irradiation window 150 may be integrally formed with the first housing 141. When the irradiation window 150 is integrally formed with the same material as the first housing 141, the manufacturing cost and time of the X-ray tube can be reduced. According to an embodiment, the irradiation window 150 may be formed (manufactured) from at least one metal selected from Be, Al, or Ti. Depending on the density of the material forming the irradiation window 150, the absorption rate of the irradiation window 150 for X-rays varies, therefore, the implementer can appropriately select the material of the irradiation window 150 as needed.

[0049] Figure 3 This is a schematic diagram of an X-ray tube system 1 including multiple X-ray tubes 100 according to an embodiment of the present disclosure. (Refer to...) Figure 3 The X-ray tube system 1 may include a plurality of X-ray tubes 100 according to an embodiment of the present disclosure. Furthermore, the X-ray tube system 1 may include a slit 20 and a detector 30.

[0050] In one embodiment, a plurality of X-ray tubes 100 may be arranged side-by-side on a plane parallel to the detector 30. More specifically, the first housing (e.g. Figure 2 The bottom surface of the first container 141 (e.g.) Figure 2 The bottom surfaces 141b) are arranged in a manner parallel to the plane of the detector 30. The intensity of the X-rays drawn from each X-ray tube 100 can be different from each other.

[0051] In one embodiment, the slit 20 variably adjusts (restricts) the irradiation field of the X-rays drawn from the X-ray tube 100, thereby limiting the area of ​​X-rays irradiating the detector 30. The irradiation field can be variably determined based on the imaging distance (distance from the X-ray tube 100 to the detector 30). Furthermore, X-rays can be irradiated in such a manner that the X-ray images irradiated by the individual X-ray tubes 100 are interconnected at their edges.

[0052] Figure 4 This is a cross-sectional view of an X-ray tube system 1 including multiple X-ray tubes 100 according to an embodiment of the present disclosure. (Refer to...) Figure 4Multiple X-ray tubes 100 can irradiate X-rays toward detector 30. The X-rays irradiated toward detector 30 are modulated (limited) by slit 20 as they pass through it, thereby irradiating detector 30. The multiple X-ray tubes 100 may include at least three X-ray tubes 100. For example, X-ray tubes 100 may include a first X-ray tube 100a, a second X-ray tube 100b, and a third X-ray tube 100c.

[0053] In one embodiment, the intensities of the X-rays irradiated from the first X-ray tube 100a, the second X-ray tube 100b, and the third X-ray tube 100c can be different from each other. Specifically, the intensity of the X-rays emitted from the X-ray tube 100 located between two X-ray tubes 100 can be the greatest. For example, among the first X-ray tube 100a, the second X-ray tube 100b, and the third X-ray tube 100c, the intensity of the X-rays emitted from the second X-ray tube 100b located between the first X-ray tube 100a and the second X-ray tube 100c can be the greatest. Therefore, during X-ray diagnostic imaging, the intensity of the extracted X-rays can be adjusted according to the density of the objects being imaged, which is arranged between the multiple X-ray tubes 100 and the detector 30, thereby achieving efficient X-ray imaging. That is, low-dose X-ray imaging can be achieved during X-ray diagnostic imaging. Furthermore, since the multiple X-ray tubes 100 are arranged in parallel according to one embodiment, even if the irradiation angle of the X-rays drawn from each X-ray tube 100 is limited, X-rays can still irradiate a relatively wide area of ​​the detector 30. As a result, the imaging distance (the distance from the X-ray tube 100 to the detector 30) is shortened, thereby enabling efficient use of space and obtaining high-quality images or videos even with lower X-ray output.

[0054] Figure 5 This is a top perspective view of an X-ray tube 200 according to an embodiment of the present disclosure. Figure 6 This is a perspective view of the back of an X-ray tube 200 according to an embodiment of the present disclosure. Figure 7 It is along Figure 5 A three-dimensional cross-sectional view of the X-ray tube 200, cut along line B-B'. (Refer to...) Figures 5 to 7 The X-ray tube 200 may include multiple electron guns 220, an anode 230, a housing 240, and an irradiation window 250.

[0055] In one embodiment, the electron gun 220 generates electrons and emits them toward the anode 230. A cold cathode electron tube, which emits electrons due to an electric field difference caused by a potential difference, may be disposed inside the electron gun 220. The electron gun 220 is connected to the internal space of the housing 240 and can be sealed relative to the outside of the X-ray tube 200. Multiple electron guns 220 can be arranged radially around the anode 130. The angle between the multiple electron guns can be constant. Specifically, when there are n electron guns 220, the angle between each electron gun 220 can be 360 / n degrees (°). For example, when there are two electron guns 220, the angle between them can be 180 degrees. For example, when there are three electron guns 220, the angle between them can be 120 degrees. For example, when there are four electron guns 220, the angle between them can be 90 degrees. In particular, when X-ray imaging is performed using an X-ray tube 200 comprising four or more electron guns 220, precise and three-dimensional CT images or photographs can be obtained without mechanical shaking by acquiring X-ray images from four or more viewpoints. For example, refer to Figures 5 to 7 The electron gun 220 may include a first electron gun 221, a second electron gun 222, a third electron gun 223, and a fourth electron gun 224. The angle between each of the first electron gun 221, the second electron gun 222, the third electron gun 223, and the fourth electron gun 224 is 90 degrees.

[0056] In one embodiment, the anode 230 may be constituted as a positive electrode. The anode 230 may be surrounded by a conductive material. The anode 230 may have a direction perpendicular to the movement direction of electrons emitted from the electron gun 220 (e.g., Figure 2 The direction of movement D e The anode 230 extends in the direction of (hereinafter, the length direction). It may include a base portion 231 and a tip portion 232. The base portion 231 may correspond to the cylindrical portion in the length direction, and a high voltage may be applied to the base portion 231. The tip portion 232 may correspond to the end of the base portion 231 in the anode 230. Electrons are emitted from the electron gun 220 toward the tip portion 232, and energy conversion is caused by the electrons incident on the tip portion 232, thereby generating X-rays from the tip portion 232. The X-rays generated from the tip portion 232 can be emitted to the outside through the irradiation window 250.

[0057] Reference Figure 7 The tip 232 can be positioned relative to the electron emission direction D e The reflective surface of the tip 232 is configured at an angle relative to the electron emission direction (e.g., ...). Figure 2 The direction of movement D eThe tip 232 is configured in an inclined manner. In one embodiment, the tip 232 may be pyramidal. "n-pyramid" refers to a three-dimensional shape with an n-sided base, triangular lateral faces, and vertices of each lateral triangle converging at a point perpendicular to the base. Furthermore, in an n-pyramid, "number of pyramids" refers to n. When the tip 232 is pyramidal, the number of pyramids is the same as the number of electron guns 220. The tip 232 may include the same number of pyramidal surfaces 232A as the number of pyramids. In one embodiment, the angles of each pyramidal surface 232A relative to the length direction of the base end 231 may all be the same. When the angles formed by each pyramidal surface 232A relative to the length direction of the base end 231 are the same, X-rays emitted from each pyramidal surface 232A can irradiate a virtual circular path on the object surface. Furthermore, in another embodiment, the angles of each pyramidal surface 232A relative to the length direction of the base end 231 may all be different. By setting the angles formed by each pyramidal surface 232A relative to the length direction of the base end 231 to be different from each other, X-rays emitted from each pyramidal surface 232A can be directed to the position desired by the user on the object surface.

[0058] In another embodiment, the tip 232 may be conical. When the tip 232 is conical, regardless of the number of electron guns 220, electrons irradiated from the electron guns 220 are reflected at the tip 232, so that X-rays can irradiate the precise location of the object surface.

[0059] In one embodiment, the housing 240 and the illumination window 250 may respectively include reference... Figure 1 and Figure 2 The housing of the illustrated embodiment (e.g.) Figure 1 and / or Figure 2 The housing 140) and the illumination window (e.g. Figure 2 The illumination window 150 has essentially the same composition and features as the irradiation window 150, and can be applied in the same way to this embodiment.

[0060] Figure 8 This is a schematic diagram showing the focal track (FT) of the light source position of an X-ray tube 200 according to an embodiment of the present disclosure. Specifically, Figure 8 It shows four electron guns (e.g.) Figures 5 to 7The positions of light sources S1, S2, S3, and S4 on the focal trajectory FT in the case of an electron gun 220. For example, the first light source S1, the second light source S2, the third light source S3, and the fourth light source S4 can be arranged on the circular focal trajectory FT. That is, the multiple light sources S1, S2, S3, and S4 are equivalent to a set of points spaced a certain distance from the center of the circular focal trajectory FT. By arranging multiple light sources S1, S2, S3, and S4 on the circular focal trajectory FT, X-ray images can be acquired at different positions, thereby obtaining images with minimal distortion when photographing human bodies or objects with three-dimensional shapes.

[0061] The technical concept of this disclosure has been illustrated above through some embodiments and examples shown in the accompanying drawings. However, it should be understood that various substitutions, modifications, and alterations can be made without departing from the technical concept and scope of this disclosure, which can be understood by those skilled in the art. Furthermore, such substitutions, modifications, and alterations should be considered to fall within the scope of the appended claims.

Claims

1. An X-ray tube, wherein, include: Electron gun; The anode is surrounded by a conductive material and includes a tip that is irradiated by electrons emitted from the electron gun and emits X-rays; A housing comprising a first receptacle and a second receptacle, wherein the first receptacle is made of the conductive material and connected to the electron gun, and the second receptacle is joined to the first receptacle and, together with the first receptacle, defines an internal space for accommodating the anode; the first receptacle includes a sidewall connected to the electron gun and a lower wall formed perpendicular to the sidewall; and An illumination window is formed on the lower wall of the first housing and guides the X-rays emitted from the tip to the outside of the housing. The X-ray emitted from the tip travels in a direction that crosses the direction of motion of the electrons emitted from the electron gun.

2. The X-ray tube according to claim 1, wherein, At the location corresponding to the container joint where the first container and the second container engage, the distance from the outer peripheral surface of the anode to the first container is greater than the distance from the outer peripheral surface of the anode to the second container.

3. The X-ray tube according to claim 2, wherein, The anode includes, The first part is located within the housing on the side of the second receptacle; The second part is located within the housing on the lower wall side of the first container; and The third part is located between the first part and the second part. The first part, the second part, and the third part are arranged side by side along the length direction, and the outer perimeter of the third part is smaller than the outer perimeter of the first part and the outer perimeter of the second part.

4. The X-ray tube according to claim 3, wherein, The outer perimeters of the first part and the second part are the same.

5. The X-ray tube according to claim 1, wherein, The second container is made of an insulator.

6. The X-ray tube according to claim 5, wherein, The second container is made of ceramic.

7. The X-ray tube according to claim 1, wherein, The illumination window is integrated with the first container.

8. The X-ray tube according to claim 1, wherein, The illumination window is formed of at least one selected from Be, Al, or Ti.

9. The X-ray tube according to claim 1, wherein, The tip is configured at an angle relative to the emission direction of the electrons emitted from the electron gun.

10. An X-ray tube system, wherein, include: Multiple X-ray tubes, Each of the plurality of X-ray tubes includes: Electron gun; The anode is surrounded by a conductive material and includes a tip that is irradiated by electrons emitted from the electron gun and emits X-rays; A housing comprising a first receptacle and a second receptacle, wherein the first receptacle is made of the conductive material and connected to the electron gun, and the second receptacle is joined to the first receptacle and, together with the first receptacle, defines an internal space for accommodating the anode; the first receptacle includes a sidewall connected to the electron gun and a lower wall formed perpendicular to the sidewall; and An illumination window is formed on the lower wall of the first housing and guides the X-rays emitted from the tip to the outside of the housing. The X-ray tube system also includes: Slits, the slits allowing the X-rays to pass through and modulating the respective irradiation fields of the X-rays; and A detector that receives each of the X-rays emitted from the plurality of X-ray tubes. The plurality of X-ray tubes are arranged side by side on a plane parallel to the detector, and the movement direction of each X-ray crosses the movement direction of each electron emitted from the electron gun.

11. The X-ray tube system according to claim 10, wherein, The plurality of X-ray tubes include: Three or more X-ray tubes, wherein the three or more X-ray tubes irradiate the detector with X-rays that are each parallel to each other.

12. The X-ray tube system according to claim 11, wherein, The X-rays are of different intensities.

13. The X-ray tube system according to claim 12, wherein, Of the three or more X-ray tubes, the X-rays emitted from the X-ray tube located between the other two X-ray tubes have the greatest intensity.

Images