KR20110064967A - Apparatus for generating xray - Google Patents

Abstract

PURPOSE: An apparatus for generating an x-ray is provided to help a user to observe a moving target while allowing observation of various kinds of materials. CONSTITUTION: In an apparatus for generating an x-ray, a support panel(400) has a plurality of holes. A plurality of X rays generating units(300) are installed within the holes and are fixed on the support panel to generate various kinds of X-rays. A power supply unit(200) corresponds to the X rays generating units and is electrically connected to them to supply power thereto. A controller(100) controls the power generation of the power supply unit.

Description

X-ray generator {apparatus for generating Xray}

The present invention relates to an X-ray generating apparatus, and more particularly to an X-ray generating apparatus for the X-ray imaging apparatus used in the medical or food industry.

In general, an X-ray imaging apparatus used in a medical field or an X-ray imaging apparatus used in a food industry or a security industry to check an abnormality of a body acquires an image using transparency unique to X-rays.

An X-ray generator is used to generate X-rays in the X-ray imaging apparatus. The X-ray generator includes a metal line for emitting hot electrons, a metal target for generating X-rays by colliding with the emitted hot electrons, a device for cooling, and a device for emitting hot electrons. Electric devices and the like.

As such, when a high voltage is applied from the power supply unit, hot electrons are emitted from the metal lines, and the emitted hot electrons generate specific X-rays while colliding with the metal target, and the brightness of the X-rays may vary depending on the magnitude of the applied voltage. have.

In this case, when electrons emitted from the metal beam collide with the metal target, only about 1% of the energy is used for generating the X-ray, and the rest is emitted as heat, so a very precise cooling device is required separately.

On the other hand, the device for applying a high voltage to the metal wire is designed for the stability of the generated power source, due to this power supply unit and the cooling device has a disadvantage that can not be miniaturized because the X-ray generator and its associated equipment has a certain size or more.

In addition, since the once-applied power is not pulsed, but is applied in a static mode, it is difficult to immediately adjust the brightness of X-rays according to the measurement situation, and when the image is obtained by X-rays generated due to the unique characteristics of X-rays, the spatial resolution This is limited.

Therefore, it is difficult to observe a moving sensitive image of a living organism or to obtain an image having a resolution of several um, and therefore, its use is limited despite the excellent transmission characteristics of X-rays.

An object of the present invention is to improve the structure of the device, to provide an X-ray generator that can easily control the X-ray brightness, and have a fine resolution.

Technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above are clearly understood by those skilled in the art from the following descriptions. Could be.

An X-ray generator according to the present invention includes a support panel having a plurality of holes, a plurality of X-ray generators mounted in each hole and fixed to the support panel, and generating X-rays having various properties, and generating each X-ray. The control unit may be configured to include a power supply unit electrically connected to each of the units and supplying power corresponding to each X-ray generator, and a control unit configured to control power generation of the power supply unit.

Here, the plurality of holes of the support panel may include a plurality of first holes arranged in a first direction of the support panel and a plurality of second holes arranged in a second direction perpendicular to the first direction. have.

The X-ray generation unit includes a vacuum case equipped with a window through which X-rays are emitted to the outside, an electron gun made of carbon nanotubes, mounted in the vacuum case, generating an electron beam, mounted in the vacuum case, and It may be configured to include a metal target for generating X-rays by the collision, and a plurality of electrodes arranged between the electron gun and the metal target, to guide the electron beam.

Here, the electron gun is located between the first end electrically connected to the power supply unit, the area facing the first end, the second end emitting the electron beam, and positioned between the first end and the second end. It may be configured to include a rotating shaft for rotating the second end.

The power supply unit includes a first power source connected to the electron gun of each X-ray generator, a second power source connected to the negative electrode of each X-ray generator, a third power source connected to the positive electrode of each X-ray generator, and a metal of each X-ray generator. It may be configured to include a fourth power source connected to the target.

The control unit may further include: an analysis unit analyzing an external input signal, a search unit searching for a power value corresponding to the analyzed input signal, and a position of a power supply unit for generating a power value, and the searched power supply unit. It may be configured to include a control signal generator for generating a control signal to generate a power corresponding to the power value.

Other objects, features and advantages of the invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

The X-ray generating apparatus according to the present invention has the following effects.

According to the present invention, by arranging a plurality of X-ray generators having different metal targets to generate X-rays of various properties in succession, various kinds of materials can be observed, and the range of application is particularly suitable for observing moving materials.

In addition, by connecting a separate power supply unit to each X-ray generating unit, and appropriately controlling the power supply unit according to an external input signal, the X-ray generation is generated because the supply of electricity in the form of pulse rather than the static electricity supply to each X-ray generating unit It can be used to classify moving images and types of materials by having various phases.

This makes it possible to more accurately observe the inside of a moving body, and can be fully utilized for inspecting foreign objects or dangerous goods in the food and security industries.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is intended to emit X-rays having various phases in the form of pulses by configuring the electron gun of the X-ray generator part with carbon nanotubes to facilitate the power supply control to the electron gun.

In addition, according to the present invention, by manufacturing a plurality of X-ray generators having different metal targets, and sequentially arranging them, the X-ray generators may emit various X-rays having different properties and control wavelengths of the X-rays emitted. .

1A and 1B are views illustrating an X-ray generator according to the present invention, and FIG. 1A is a plan view of an X-ray generator according to the present invention, and FIG. 1B is a side view of the X-ray generator according to the present invention.

As shown in FIGS. 1A and 1B, the present invention may be largely comprised of a support panel 400, an X-ray generator 300, a power supply unit 200, and a controller 100.

Here, the support panel 400 has a plurality of holes 500, and the holes 500 may serve to support and fix the X-ray generator 300.

In this case, the plurality of holes 500 of the support panel 400 may include a plurality of first holes 500a and second holes 500b, and the plurality of first holes 500a may be the support panel 400. ) May be arranged in a first direction, and the plurality of second holes 500b may be arranged in a second direction perpendicular to the first direction.

In addition, although the holes 500 of the support panel 400 are configured in the shape of a round circle, they may be variously changed according to the case cross-sectional shape of the X-ray generator 300.

Among the plurality of holes 500, a gap between the first holes 500a arranged in the first direction of the support panel 400 and a first hole arranged in the second direction of the support panel 400 ( The spacing between 500b) may be formed to be constant with each other, or may be formed differently.

Next, the X-ray generator 300 is mounted in each hole 500 and fixed to the support panel 400, and a plurality of X-ray generators 300 are arranged to generate X-rays having various properties.

Here, among the plurality of X-ray generators 300, the X-ray generators 300 mounted in the adjacent holes 500 may have different metal targets to generate X-rays having different properties.

In some cases, the X-ray generators 300 mounted in the adjacent holes 500 may have the same targets to generate X-rays having the same properties.

As another embodiment, the X-ray generator 300 mounted in the predetermined hole 500 may be positioned in every first hole in the first or second direction of the support panel 400. Alternatively, the same targets may be provided to generate X-rays having the same properties as the X-ray generator 300 positioned in every third hole.

On the other hand, the power supply unit 200 may be electrically connected to each X-ray generator 300, respectively, and may serve to supply power corresponding to each X-ray generator 300.

The controller 100 may control power generation of the power supply unit 200 to adjust power generation of the power supply unit 200.

As described above, in the present invention configured, the number of arrangements, arrangement positions, and arrangement methods of the X-ray generation unit 300 may be determined according to the purpose of using the device.

That is, according to the present invention, a plurality of X-ray generators 300 emitting X-rays of various properties may be arranged in various ways according to the purpose of use of the device.

2 and 3 are detailed views of the X-ray generators of FIGS. 1A and 1B, and FIG. 2 is a side view showing the X-ray generators of FIGS. 1A and 1B in detail, and FIG. 3 is a detailed view of the X-ray generators of FIGS. 1A and 1B. It is a top view showing.

As shown in FIGS. 2 and 3, the X-ray generator may be configured of a vacuum case having a window 340, an electron gun 332, a metal target 338, and a plurality of electrodes 334 and 336.

Here, the vacuum case is mounted with a window 340 through which X-rays are emitted to the outside, and serves to protect the electron gun 332, the metal target 338, and the plurality of electrodes 334 and 336.

The electron gun 332 may be mounted in the vacuum case and serve to generate an electron beam.

In this case, the electron gun 332 is preferably made of carbon nanotubes in order to generate X-rays having high resolution, and more preferably made of carbon nanotubes among the carbon nanotubes.

Here, as shown in FIG. 3, when the electrons generated from the electron gun 332 collide with the metal target 338, the electron gun 332 may be configured to be adjustable so that the collision angle may be adjusted.

4 is a plan view illustrating the electron gun of FIGS. 2 and 3 in detail. As shown in FIG. 4, the electron gun 332 includes a first end 332a and a first end 332a electrically connected to a power supply unit. ) Is positioned between the second end 332b and the first end 332a and the second end 332b which are located in an area facing the C) and emit the electron beam, thereby rotating the first and second ends 332a and 332b. It may be configured to include a rotating shaft.

Here, the rotation direction of the first and second ends 332a and 332b is preferably located on the same plane as the emission direction of the electron beam.

On the other hand, the metal target 338 may be mounted in the vacuum case, and may serve to generate X-rays by collision of the electron beam.

Here, the metal target 338 may be made of a metal such as copper, molybdenum, tungsten, aluminum, or the like.

In addition, the plurality of electrodes 334 and 336 may be arranged between the electron gun 332 and the metal target 338 and serve to guide the electron beam.

Here, the plurality of electrodes 334 and 336 may include a negative electrode 334 arranged adjacent to the electron gun 332, and a positive electrode 336 arranged adjacent to the metal target 338.

In addition, components such as a lens may be further arranged between the negative electrode 334 and the positive electrode 336 to focus electrons.

Meanwhile, each power supply unit 200 of FIGS. 1A and 1B may include first, second, third, and fourth power sources 342a, 342b, 342c, and 342d.

Here, as illustrated in FIG. 2, the first power source 342a is connected to the electron gun 332 of each X-ray generator 300, and generates power adjusted according to a control signal of the controller 100, thereby generating an electron gun. 332 serves to supply.

At this time, the cathode of the first power source 342a is connected to the electron gun 332, and the anode of the first power source 342a is grounded.

The second power source 342b is connected to the negative electrodes 334 of the X-ray generators 300, generates power adjusted according to the control signal of the controller 100, and supplies the negative electrode 334 to the negative electrodes 334. To perform.

At this time, the cathode of the second power source 342b is connected to the negative electrode 334, and the anode of the second power source 342b is grounded.

Next, the third power source 342c is connected to the positive electrode 336 of each X-ray generator 300, and the anode is connected to the positive electrode 336, and the cathode is grounded.

The fourth power source 342d is connected to the metal targets 338 of the X-ray generators 300. The anode is connected to the metal target 338, and the cathode is grounded.

As described above, each of the power supply units configured by the control unit 100 of FIG. 1B generates power of various values and supplies the generated power to the X-ray generator.

FIG. 5 is a detailed view of the control unit of FIG. 1B, and as shown in FIG. 5, the control unit includes an analysis unit 110, a search unit 120, a control signal generator 130, and a memory unit 140. Can be.

Here, the analysis unit 110 performs a role of analyzing the input signal applied from the outside.

Subsequently, the search unit 120 searches for the power value corresponding to the analyzed input signal and the position of the power supply unit for generating the power value from the memory unit 140.

Here, the memory unit 140 stores power value information to be applied to the X-ray generation unit and location information of a power supply unit for generating a corresponding power value according to the purpose of using the device.

Next, the control signal generator 130 may generate a control signal to generate a power corresponding to the power value searched by the power supply searched by the memory unit 140.

In this way, the X-ray generating apparatus according to the present invention can be operated as follows.

First, when the analysis unit of the control unit receives an input signal from the outside, it analyzes for what purpose the input signal is desired to generate X-rays.

Subsequently, the search unit of the controller searches information corresponding to the analyzed condition from the memory unit, and the control signal generator generates a control signal according to the searched information and applies it to a corresponding power supply unit.

Next, the power supply unit generates a corresponding power and supplies the power to the X-ray generator in accordance with the applied control signal.

The X-ray generator generates X-rays having a wavelength corresponding to the applied power, thereby observing a sensitive state of a moving material or obtaining an image having a resolution of several um.

According to the present invention, by arranging a plurality of X-ray generators having different metal targets to generate X-rays of various properties in succession, various kinds of materials can be observed, and the range of application is particularly suitable for observing moving materials.

In addition, by connecting a separate power supply unit to each X-ray generating unit, and appropriately controlling the power supply unit according to an external input signal, the X-ray generation is generated because the supply of electricity in the form of pulse rather than the static electricity supply to each X-ray generating unit It may be used to classify moving images and types of materials by having various phases.

Therefore, the present invention can more accurately observe the inside of the moving body and the like, and can be sufficiently utilized for inspecting foreign objects or dangerous goods in the food and security industries.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

1a is a plan view of an X-ray generator according to the present invention

Figure 1b is a side view of the X-ray generating apparatus according to the present invention

FIG. 2 is a side view illustrating in detail the X-ray generator of FIGS. 1A and 1B.

3 is a plan view illustrating in detail the X-ray generator of FIGS. 1A and 1B;

4 is a plan view showing in detail the electron gun of FIGS. 2 and 3

5 is a view illustrating in detail the control unit of FIG. 1B;

Claims (13)

A support panel having a plurality of holes; A plurality of X-ray generators mounted in the holes and fixed to the support panel to generate X-rays having various properties; A power supply unit electrically connected to each of the X-ray generators and supplying power corresponding to each of the X-ray generators; And, And a control unit for controlling power generation of the power supply unit. The method of claim 1, wherein the plurality of holes of the support panel, A plurality of first holes arranged in a first direction of the support panel; And a plurality of second holes arranged in a second direction perpendicular to the first direction. The X-ray generator of claim 1, wherein, among the plurality of X-ray generators, the X-ray generators mounted in adjacent holes generate X-rays having different properties. The X-ray generator of claim 3, wherein the X-ray generators mounted in the adjacent holes have different metal targets. The method of claim 1, wherein the X-ray generation unit, A vacuum case equipped with a window through which the X-rays are emitted to the outside; An electron gun mounted in the vacuum case and generating an electron beam, the electron gun made of carbon nanotubes; A metal target mounted in the vacuum case and generating the X-rays by collision of the electron beams; And a plurality of electrodes arranged between the electron gun and the metal target to guide the electron beam. The X-ray generator of claim 5, wherein the carbon nanotubes of the electron gun are carbon nanotubes. The method of claim 5, wherein the electron gun, A first end electrically connected to the power supply; A second end positioned in an area facing the first end and emitting the electron beam; And a rotation shaft positioned between the first end and the second end to rotate the first and second ends. 8. The X-ray generator of claim 7, wherein the rotation directions of the first and second ends are on the same plane as the emission direction of the electron beam. The method of claim 1, wherein the power supply unit, A first power source connected to the electron gun of each X-ray generator; A second power source connected to the negative electrodes of the X-ray generators; A third power source connected to the positive electrodes of the X-ray generators; And a fourth power source connected to the metal targets of the X-ray generators. The method of claim 9, wherein the cathode of the first power source is connected to the electron gun, the anode of the first power source is grounded, and the first power source generates power adjusted according to a control signal of the controller, X-ray generator, characterized in that supplied to. The method of claim 9, wherein the negative electrode of the second power source is connected to the negative electrode, the positive electrode of the second power source is grounded, the second power source generates a regulated power according to the control signal of the control unit, the negative electrode X-ray generator, characterized in that supplied to. 10. The method of claim 9, wherein the anode of the third power source is connected to the positive electrode, the cathode of the third power source is grounded, the anode of the fourth power source is connected to the metal target, and the cathode of the fourth power source is X-ray generator, characterized in that grounded. The method of claim 1, wherein the control unit, An analysis unit for analyzing an external input signal, A search unit searching for a power value corresponding to the analyzed input signal and a position of a power supply unit for generating the power value; And a control signal generator configured to generate a control signal to generate a power corresponding to the searched power value in the searched power supply.

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