JP7371293B1 - shielded container - Google Patents

Abstract

An object of the present invention is to suppress the negative impact of a plasma generator on the surroundings. A shielding container according to an embodiment is a shielding container that houses a particle acceleration unit that generates plasma by arc discharge and shields plasma emitted from the particle acceleration unit. Magnets are arranged on the inner wall of the shielding container and are magnetized so that an N pole appears on one of the opposing surfaces and an S pole appears on the other surface. [Selection diagram] Figure 2

Description

Embodiments of the invention relate to shielded containers.

Techniques have been developed to generate plasma by applying a high voltage between electrodes and generating arc discharge between the electrodes. The generated plasma can be used for various purposes. For example, the generated plasma can be used for medical purposes. Furthermore, substances can also be activated by irradiating the generated plasma. For example, by irradiating plasma on materials such as ginseng, which is the basis of cold medicine, it is possible to increase the effectiveness of the medicine.

Patent No. 6788078

When irradiating a substance with plasma, the plasma output port of the plasma generator is directed toward the object and the plasma is irradiated onto the object. The plasma irradiated onto the object scatters around it. Furthermore, electromagnetic waves are generated when plasma is generated by a plasma generator. This scattered plasma and electromagnetic waves may have an adverse effect on the surroundings.

An object of the present invention is to suppress the negative impact of a plasma generator on the surroundings.

In order to solve the above problems, a shielding container according to an embodiment is a shielding container that houses a particle acceleration unit that generates plasma by arc discharge and shields plasma emitted from the particle acceleration unit. The shielding container is made of concrete and a shielding plate containing at least one of magnesium, lead, and cobalt. Magnets are arranged on the inner wall of the shielding container and are magnetized so that an N pole appears on one of the opposing surfaces and an S pole appears on the other surface.

FIG. 1 is a perspective view of an elementary particle accelerator according to an embodiment. FIG. 1 is a cross-sectional view of an elementary particle accelerator according to an embodiment. FIG. 2 is a perspective view of a particle acceleration unit according to an embodiment. FIG. 4 is a perspective view showing the case of FIG. 3 with the case omitted. FIG. 2 is a cross-sectional view of a particle acceleration unit according to an embodiment. FIG. 3 is a bottom view of the cap of the particle acceleration unit according to the embodiment. It is a bottom view of the 2nd magnet of the particle acceleration unit concerning an embodiment. FIG. 3 is a diagram for explaining electrical wiring of a particle acceleration unit according to an embodiment. FIG. 3 is a diagram for explaining an example of dimensions of a particle acceleration unit according to an embodiment. FIG. 3 is a diagram for explaining a shielding plate of a shielding container according to an embodiment. It is a figure for explaining the coil provided in the shielding container concerning an embodiment. It is a figure for explaining the coil provided in the shielding container concerning an embodiment. FIG. 3 is a diagram for explaining the operation of the particle accelerator according to the embodiment. FIG. 3 is a diagram for explaining the operation of the particle accelerator according to the embodiment.

This embodiment will be described below with reference to the drawings. In the description, an XYZ coordinate system consisting of mutually orthogonal X, Y, and Z axes will be used as appropriate.

FIG. 1 is a perspective view of an elementary particle accelerator 1 according to an embodiment. FIG. 2 is a cross-sectional view of the particle accelerator 1. The elementary particle accelerator 1 includes a particle acceleration unit 2 and a shielding container 200 that accommodates the particle acceleration unit 2.

FIG. 3 is a perspective view of the particle acceleration unit 2 according to the embodiment. The particle acceleration unit 2 includes a plasma generation section 10 and a high voltage power source 30. The plasma generating unit 10 includes a cylindrical case 20 and a first electrode 11 housed in the case 20.

FIG. 4 is a perspective view showing the plasma generating section 10 with the case 20 omitted. FIG. 5 is a cross-sectional view taken along the line AA in FIG. 3. As shown in FIGS. 4 and 5, the plasma generation unit 10 includes a first electrode 11, a second electrode 15, a first magnet 17, a second magnet 18, and a case 20 in which these are housed. .

As shown in FIG. 5, the case 20 includes a case body 21 and a cap 22. As shown in FIG. The case body 21 is a casing whose upper end is closed and whose lower end is open. An opening 21b penetrating in the X-axis direction is formed in the center of the upper surface (-X side surface) of the case body 21. The case body 21 is made of resin, for example, and has a thickness of about 4 mm, a dimension in the X-axis direction of about 60 mm, and an inner diameter of about 40 mm. Further, the inner diameter of the opening 21b is approximately 5 mm.

The cap 22 is a circular plate-shaped member. The cap 22 is formed so that its outer diameter is the same as the outer shape of the case body 21, and is fixed to the +X side end of the case body 21. The cap 22 is made of resin, for example. FIG. 6 is a bottom view of the cap 22. As shown in FIG. 6, the cap 22 has an opening 22b formed in the center, and a plurality of openings 22c formed around the opening 22b. For example, the inner diameter of the opening 22b is approximately 5 mm, and the inner diameter of the opening 22c is 3 mm.

Returning to FIG. 5, the first electrode 11 is a member whose longitudinal direction is the X-axis direction and which has two parts: a first discharge part 11a and a conductive part 11b. The conductive part 11b consists of an M5 size bolt with a male threaded part formed at the lower end. The first discharge portion 11a is a member having a diameter of 1 mm, a length of about 10 mm, and a lower end portion that is sharp like a needle. The first discharge part 11a is integrated with the conductive part 11b by welding its upper end to the lower end of the conductive part 11b. The first discharge part 11a and the conductive part 11b that constitute the first electrode 11 are made of iron, stainless steel, tungsten, titanium, or the like.

The first magnet 17 is a circular plate-shaped member. A through hole 17a penetrating in the X-axis direction is formed in the center of the first magnet 17. The first magnet 17 is, for example, a magnet with strong magnetic force such as a neodymium magnet. The first magnet 17 has a thickness of about 5 mm and an outer diameter of about 30 mm. Further, the inner diameter of the through hole 17a is approximately 5 mm. The first magnet 17 is magnetized so that the upper surface side (-X side surface) becomes an S pole and the lower surface side (+X side surface) becomes an N pole.

As shown in FIG. 5, the first electrode 11 described above is inserted into the opening 21b from above the case body 21 via the washer 41. With the first electrode 11 protruding inside the case body 21 inserted into the through hole 17a of the first magnet 17, the washer 42 and nut 43 are fitted to the conductive part 11b, thereby connecting the case body 21 and the first electrode. 11 and the first magnet 17 are integrated.

The second electrode 15 is a member whose longitudinal direction is the X-axis direction and has two parts: a second discharge part 15a and a conductive part 15b. The conductive part 15b consists of an M5 size bolt with a male threaded part formed at the upper end. The second discharge portion 15a is a member having a diameter of 1 mm, a length of approximately 10 mm, and an upper end portion that is sharp like a needle. The second discharge part 15a is integrated with the conductive part 15b by welding its lower end to the upper end of the conductive part 15b. The second discharge part 15a and the conductive part 15b constituting the second electrode 15 are made of iron, stainless steel, tungsten, titanium, or the like.

The second magnet 18 is a circular plate-shaped member. The second magnet 18 is, for example, a magnet with strong magnetic force such as a neodymium magnet. The second magnet 18 is magnetized so that the upper surface side (-X side surface) becomes an S pole and the lower surface side (+X side surface) becomes an N pole. The second magnet 18 has a thickness of about 5 mm and an outer diameter of about 40 mm. As shown in FIG. 7, the second magnet 18 has a through hole 18b formed in the center thereof that penetrates in the X-axis direction, and a plurality of openings 18c formed around the through hole 18b. For example, the inner diameter of the through hole 18b is approximately 5 mm, and the inner diameter of the opening 18c is 3 mm. The through hole 18b and the plurality of openings 18c of the second magnet 18 are formed at the same position as the opening 22b and the opening 22c in the cap 22.

As shown in FIG. 5, the second electrode 15 described above is inserted into the opening 22b from below the cap 22 via the washer 45. The cap 22, the second electrode 15, and the second magnet 18 are integrated. The second magnet 18 and the cap 22 are arranged so that the opening 18c of the second magnet 18 and the opening 22c of the cap 22 overlap.

By assembling the case body 21 to which the first electrode 11 is fixed and the cap 22 to which the second electrode 15 is fixed, the first discharge part 11a of the first electrode 11 and the second discharge part 15a of the second electrode 15 are As shown in FIG. 5, it is arranged on a straight line S parallel to the X axis. Furthermore, a discharge gap is formed by the distal end of the first discharging section 11a and the distal end of the second discharging section 15a facing each other with a predetermined distance apart. The first magnet 17 and the second magnet 18 are arranged apart from each other with the first electrode 11 and the second electrode 15 in between, and are arranged from the tip of the first electrode 11 facing each other to the tip of the second electrode 15. Forms a magnetic field in the direction of the object.

As shown in FIG. 3, the high voltage power supply 30 is fixed to the case body 21. The high voltage power supply 30 is, for example, a DC power supply including a DC/DC converter. The high voltage power supply 30 inputs a DC voltage of, for example, about 3V to 5V, and outputs a DC voltage of 50,000V to 1,000,000V.

FIG. 8 is a diagram showing the electrical wiring of the particle acceleration unit 2. The power supply 100 is a power supply that converts AC power from a commercial power source into DC power. As the power supply 100, it is conceivable to use one with an output voltage of about 3V to 5V. As shown in FIG. 8, the negative electrode of the output of the high voltage power supply 30 is connected to the first electrode 11, and the positive electrode is connected to the second electrode 15. The high-voltage power supply 30 applies a DC voltage of 50,000V to 1,000,000V to the first electrode 11 and the second electrode 15. The output voltage of the high voltage power supply 30 is adjusted so that arc discharge occurs in the discharge gap between the first discharge section 11a and the second discharge section 15a. The output voltage of the high voltage power supply 30 is adjusted according to conditions such as the distance between the first discharge section 11a and the second discharge section 15a, the shapes of the tips of the first discharge section 11a and the second discharge section 15a, atmospheric pressure, and humidity. Ru. Here, the output voltage of the high voltage power supply 30 is adjusted to about 400,000V.

FIG. 9 is a diagram summarizing an example of dimensions of the particle acceleration unit 2. The length L1 of the case body 21 in the X-axis direction is approximately 60 mm. The inner diameter L2 of the case body 21 is approximately 40 mm. The length L11 of the conductive portion 11b of the first electrode 11 is approximately 20 mm. The length L12 of the first discharge portion 11a is approximately 10 mm. The length L14 of the conductive portion 15b of the second electrode 15 is approximately 20 mm. The length L13 of the second discharge portion 15a is approximately 10 mm. The distance Lg from the tip of the first discharge section 11a to the tip of the second discharge section 15a is approximately 1 mm. The outer diameter L22 of the first magnet 17 is, for example, 30 mm to 40 mm. However, these numerical values are just examples and are not limited thereto.

Returning to FIG. 2, the shielding container 200 will be described. The shape of the shielding container 200 is a rectangular parallelepiped. The shielding container 200 has, for example, a length of 80 cm in the X-axis direction, a length of 60 cm in the Y-axis direction, and a length of 70 cm in the Z-axis direction. The shielded container 200 has a shielded container body 210 and a lid 220. The shielding container main body 210 and the lid 220 are formed such that a shielding plate 230 is covered with concrete 240. As shown in FIG. 10, the shielding plate 230 includes a shielding plate 231 made of magnesium, a shielding plate 232 made of lead, and a shielding plate 233 made of cobalt. Which of the shielding plate 231 made of magnesium, the shielding plate 232 made of lead, or the shielding plate 233 made of cobalt should be placed in the center, and which one should be placed inside the shielding container 200 is determined. Optional.

Returning to FIG. 2, magnets are arranged on the inner wall of the shielding container 200, magnetized so that a north pole appears on one of the opposing surfaces and a south pole appears on the other surface. In the example shown in FIG. 2, a magnet 251 is arranged on the -Z side surface of the lid 220. The magnet 251 is magnetized so that the surface on the +Z side becomes the S pole and the surface on the -Z side becomes the N pole. A magnet 252 is arranged on the +Z side surface (bottom surface) of the shielding container main body 210, which faces the −Z side surface of the lid 220. The magnet 252 is magnetized so that the surface on the +Z side becomes the S pole and the surface on the -Z side becomes the N pole. Furthermore, a magnet 253 is arranged on the inner surface of the shielding container main body 210 on the −X side. The magnet 253 is magnetized so that the surface on the +X side becomes the north pole and the surface on the -Z side becomes the south pole. A magnet 254 is arranged on the +X side inner surface of the shielding container body 210, which is opposite to the −X side inner surface of the shielding container body 210. The magnet 254 is magnetized so that the +X side surface becomes the north pole and the -X side surface becomes the south pole. Although not shown, a magnet is arranged on the -Y side inner surface of the shielding container main body 210, and is magnetized so that the +Y side surface is the north pole and the -Y side surface is the south pole. On the +Y side inner surface of the shielding container body 210, which faces the −Y side inner surface of the shielding container body 210, there is a magnet magnetized so that the +Y side surface is the N pole and the −Y side surface is the S pole. It is located.

Further, an absorbing plate 260 made of a magnetic material such as ferrite is provided between the magnets 251 to 254, etc. arranged on the inner wall of the shielding container 200 and the inner wall of the shielding container 200. Absorption plate 260 is grounded to the ground. Although not shown in FIG. 2, a coil 270 is disposed between the magnets 251 to 254, etc., arranged on the inner wall of the shielding container 200 and the inner wall of the shielding container 200. Coil 270 is mounted on absorption plate 260. The coil 270 may be arranged in a spiral shape as shown in FIG. 11, or may be arranged in a meandering manner as shown in FIG. One end of the coil 270 is grounded to the ground, and the other end of the coil 270 is in an open state.

For example, as shown in FIG. 2, the particle acceleration unit 2 is arranged on a surface facing the inner wall of the shielding container 200 in the direction of the magnetic field indicated by the magnetic field lines from the N pole of the first magnet 17 to the S pole of the second magnet 18. The magnet 254 is placed in the shielding container 200 so that the directions of the magnetic field indicated by the lines of magnetic force from the north pole of the magnet 253 to the south pole of the magnet 254 coincide with each other.

Next, the operation of the particle accelerator 1 will be explained. First, the operation of the particle acceleration unit 2 will be described with reference to FIG. 13. The magnetic field formed within the particle acceleration unit 2 will be explained. As shown by the arrows in FIG. 13, a magnetic field is formed inside the case body 21, which is represented by lines of magnetic force directed from the north pole of the first magnet 17 to the south pole of the second magnet 18. The first magnet 17 is located on the −X side of the first discharge portion 11a, and the second magnet 18 is located on the +X side of the second discharge portion 15a. The first magnet 17 and the second magnet 18 are arranged apart from each other with the first discharge section 11a and the second discharge section 15a in between, so that the first magnet 17 and the second magnet 18 are located near the first discharge section 11a and the second discharge section 15a. A magnetic field is formed in the direction (+X direction) toward the opening 22c.

When a DC voltage is output from the power supply 100, the high voltage power supply 30 outputs a DC voltage of about 400,000V. As a result, a DC voltage of about 400,000 V is applied between the first electrode 11 and the second electrode 15. Then, arc discharge occurs between the first discharge section 11a and the second discharge section 15a. When arc discharge occurs, some of the molecules constituting the atmosphere around the first discharge section 11a and the second discharge section 15a are separated into positive ions (atomic nuclei that are charged particles) and electrons, and plasma is generated. .

As described above, inside the case body 21, a magnetic field is formed in the direction from the first discharge section 11a and the second discharge section 15a toward the opening 22c. Plasma has the property of moving along a magnetic field in the direction indicated by magnetic lines of force. Therefore, the plasma is accelerated in the +X direction within the particle acceleration unit 2 and is injected out of the case 20 from the opening 22c.

Inside the shielding container 200, as shown by the arrow in FIG. A magnetic field is formed toward the S pole of the magnet 254 arranged on the inner surface of the side. In addition, a magnetic field is formed from the N pole of the magnet 251 placed on the -Z side surface of the lid 220 of the shielded container 200 toward the S pole of the magnet 252 placed on the +Z side inner surface (bottom surface) of the shielded container body 210. be done. Although not shown in FIG. 14, from the N pole of the magnet placed on the inner surface on the −Y side of the shielded container main body 210 of the shielded container 200 to the S pole of the magnet placed on the inner surface on the +Y side of the shielded container main body 210. A directed magnetic field is formed.

The plasma ejected from the opening 22c of the particle acceleration unit 2 to the outside of the case 20 is transmitted, for example, from the N pole of the magnet 253 disposed on the -X side inner surface of the shielding container body 210 of the shielding container 200. It moves in the +X direction due to the magnetic field directed toward the S pole of the magnet 254 arranged on the inner surface on the +X side, collides with the magnet 254 arranged on the inner surface on the +X side of the shielding container main body 210, and bounces in a random direction. For example, the bounced plasma moves from the N pole of the magnet 251 placed on the -Z side inner surface of the lid 220 of the shielding container 200 to the S pole of the magnet 252 placed on the +Z side inner surface (bottom surface) of the shielding container main body 210. It moves in the −Z direction due to the magnetic field directed toward it, collides with the magnet 252 placed on the +Z side inner surface (bottom surface) of the shielding container body 210, and bounces back in a random direction. For example, the bounced plasma is transferred from the N pole of a magnet (not shown) placed on the −Y side inner surface of the shielding container body 210 to the magnet (not shown) placed on the +Y side inner surface of the shielding container main body 210. It moves in the +Y direction due to the magnetic field directed toward the S pole of the shielding container body 210, collides with a magnet (not shown) placed on the +Y side inner surface of the shielding container body 210, and bounces back in a random direction. In this way, the plasma ejected from the particle acceleration unit 2 repeats acceleration and collision within the shielding container 200.

Plasma is unstable because positive ions (nuclei, which are charged particles) and electrons are separated. When the plasma repeats acceleration and collision within the shielding container 200, positive ions and electrons may collide and combine. When plasma repeatedly collides within the shielding container 200, gamma rays may be emitted when positive ions and electrons collide.

Due to the arc discharge between the first discharge section 11a and the second discharge section 15a or the collision between positive ions (nitrogen ^-14N nuclei in the atmosphere) and electrons, one nitrogen ^-14N neutron is released. There is a possibility that it will be blown away. The result of this process, called a photonuclear reaction, is the nitrogen isotope ^13N , a radioactive isotope of nitrogen with one less neutron. Furthermore, the blown neutrons and nitrogen ¹⁴ N combine to generate nitrogen isotope ¹⁵ N, which has one more neutron. Gamma rays are emitted when the nitrogen isotope ^15N is produced. In this way, the production of nitrogen isotope ¹³ N and nitrogen isotope ¹⁵ N from nitrogen ¹⁴ N in the atmosphere can be said to indicate that nuclear transmutation has occurred.

When the plasma repeatedly collides within the shielding container 200, some of the plasma passes through the magnets 251 to 254 and the like and advances toward the shielding container 200. The plasma that has progressed to the shielding container 200 side heads toward the coil 270 that is arranged between the magnets 251 to 254 and the like arranged on the inner wall of the shielding container 200 and the inner wall of the shielding container 200 . Since one end of the coil 270 is grounded, the coil 270 functions as an antenna that attracts plasma, which is a charged particle. The plasma captured by coil 270 is grounded. Further, the coil 270 has a function of shielding electromagnetic waves generated by plasma collision or the like.

The absorption plate 260 is made of an oxidized magnetic material such as ferrite. Absorption plate 260 is grounded. Since the oxidized magnetic material has the property of absorbing electromagnetic waves, the electromagnetic waves generated by plasma collision etc. are blocked by the absorption plate 260. Furthermore, since the absorption plate 260 is grounded, it has the function of capturing and grounding plasma that could not be captured by the coil 270.

The shielding container main body 210 and lid 220 of the shielding container 200 are formed so as to cover the shielding plate 230 with concrete 240. The shielding plate 230 and the concrete 240 shield the plasma that has passed through the coil 270 and the absorption plate 260 and progressed to the shielding container 200 side.

(Usage example 1)
Next, an example of use of the particle accelerator 1 according to this embodiment will be described with reference to FIG. 14. In usage example 1, a case where the object T is a coil made of copper will be described. A coil is placed as the object T in the shielding container 200 of the particle accelerator 1, and the coil is left for a predetermined period of time with the particle acceleration unit 2 in operation. The value of the DC resistance of the coil before being placed in the particle accelerator 1 is compared with the value of the DC resistance of the coil after being left in the particle accelerator 1 for 24 hours. The value of the DC resistance of the coil before being placed in the particle accelerator 1 was approximately 2.1Ω, but the value of the DC resistance of the coil after being left in the particle accelerator 1 for 24 hours was approximately 0. It was reduced to .9Ω.

The reason why the direct current resistance of the coil decreased is thought to be that atoms constituting the copper were activated when plasma (charged particles) collided with the coil made of copper in the particle accelerator 1. It is also presumed that this is because gamma rays are generated within the particle accelerator 1 and the atoms constituting copper are activated by the gamma rays. When plasma collides with a coil made of copper, the electrons that make up the copper atoms have a higher kinetic energy and become more likely to become free electrons. As a result, it is estimated that the value of the DC resistance of the coil was reduced.

By applying this experimental result, it is possible to reduce the power consumption of electronic devices. By placing an electronic device as the object T in the particle accelerator 1 and leaving it for a predetermined period of time, it is possible to reduce the value of the DC resistance of the conductor and semiconductor that constitute the electronic device. Thereby, power consumption of the electronic device can be reduced.

(Usage example 2)
In usage example 2, a case where the object T is a Chinese herbal medicine will be described. A Chinese herbal medicine is placed as an object T in the particle accelerator 1. With the particle acceleration unit 2 in operation, Chinese herbal medicine is put into the particle accelerator 1 and left for 24 hours. When comparing the Chinese herbal medicine left in the particle accelerator 1 for 24 hours with the Chinese herbal medicine that was not placed in the particle accelerator 1, an experimental result was obtained that the efficacy of the Chinese herbal medicine was higher in the former. Also, the side effects of herbal medicine were reduced in the former case.

The reason that the efficacy of Chinese herbal medicine became higher when it was left in the particle accelerator 1 is that plasma (charged particles) collide with the molecules that make up the herbal medicine inside the particle accelerator 1, which makes the herbal medicine. It is presumed that this is because the molecules become activated and their absorption rate in the body increases. In other words, the electrons that make up the molecules (atoms) that make up herbal medicines, which have increased kinetic energy, are more likely to become free electrons. As a result, it is presumed that Chinese herbal medicines are more likely to react with molecules such as digestive enzymes in the body, resulting in a higher absorption rate in the body.

Whether or not gamma rays are generated within the particle accelerator 1 can be confirmed using a commercially available gamma ray measuring device. A commercially available gamma ray measuring device is placed at the position of the object T in FIG. 14, and the gamma ray radiation dose within the particle accelerator 1 is measured. For example, when the particle acceleration unit 2 was operated for 5 minutes and the gamma ray radiation dose inside the particle accelerator 1 was measured, the gamma ray radiation dose was 11 μSv/h. Since the value of gamma ray radiation dose in the natural world is approximately 0.045 μSv/h, it can be said that it was confirmed that gamma rays were generated within the particle accelerator 1.

As described above, the particle acceleration units 2 of the particle accelerator 1 according to the embodiment are arranged at a distance from each other, and are arranged in a direction from the tips of the first electrodes 11 facing each other toward the tips of the second electrodes 15. It has a first magnet 17 and a second magnet 18 that form a magnetic field. Plasma generated by the arc generated between the first electrode 11 and the second electrode 15 is accelerated by the magnetic field formed by the first magnet 17 and the second magnet 18, and is ejected from the particle acceleration unit 2. With this configuration, the particle accelerator 1 according to the embodiment can accelerate plasma (charged particles).

Further, on the inner wall of the shielding container 200 of the particle accelerator 1 according to the embodiment, magnets magnetized so that an N pole appears on one of the opposing surfaces and an S pole appears on the other surface are arranged. has been done. Plasma (charged particles) ejected from the particle acceleration unit 2 moves along the magnetic field formed by the magnet. The plasma collides with a magnet arranged on the inner wall of the shielding container 200 and is reflected, and further moves along the magnetic field formed by the magnet arranged on the inner wall of the shielding container 200. In this way, the plasma repeatedly collides within the shielding container 200, so that the plasma is irradiated onto the object without scattering to the surroundings.

The shielding container 200 of the particle accelerator 1 according to the embodiment is formed of a shielding plate 230 and concrete 240 containing at least one of magnesium, lead, and cobalt. With this configuration, the particle accelerator 1 according to the embodiment can suppress scattering of plasma outside the device.

Furthermore, the particle accelerator 1 according to the embodiment includes an absorption plate 260 made of ferrite between the magnet arranged on the inner wall of the shielding container 200 and the inner wall of the shielding container 200. With this configuration, the particle accelerator 1 according to the embodiment can suppress electromagnetic waves from being emitted to the outside of the device, and can also suppress plasma from scattering to the outside of the device.

In addition, in the particle accelerator 1 according to the embodiment, a coil 270 is provided between a magnet arranged on the inner wall of the shielding container 200 and the inner wall of the shielding container 200, one end of which is grounded and the other end of which is in an open state. has. With this configuration, the particle accelerator 1 according to the embodiment can suppress electromagnetic waves from being emitted to the outside of the device, and can also suppress plasma from scattering to the outside of the device.

In addition, in the explanation using FIG. 2, the case where the shielding container main body 210 and the lid 220 are formed so that the shielding plate 230 is covered with concrete 240 was explained, but it is not limited to this. For example, the shielding plate 230 may be provided on the surface of the concrete 240 (the outside surface of the container 200) or the back surface of the concrete 240 (the inside surface of the container 200).

Furthermore, in the above description, a case has been described in which the shielding plate 230 includes the shielding plate 231 made of magnesium, the shielding plate 232 made of lead, and the shielding plate 233 made of cobalt. However, the configuration of the shielding plate 230 is not limited to this. For example, the shielding plate 230 may include at least one of a shielding plate 231 made of magnesium, a shielding plate 232 made of lead, and a shielding plate 233 made of cobalt. Further, the shielding plate 230 may be formed of an alloy containing at least one of magnesium, lead, and cobalt.

Further, in the above description, a case has been described in which the absorption plate 260 made of ferrite is provided between the magnet arranged on the inner wall of the shielding container 200 and the inner wall of the shielding container 200, but the present invention is not limited to this. For example, the absorption plate 260 may be provided so as to be covered with concrete 240. Similarly, the coil 270 may be provided so as to be covered with concrete 240. In this case, it is desirable that the absorbing plate 260 and the coil 270 be provided inside the shielding container 200 rather than the shielding plate 230.

A radiation shielding rubber sheet can also be used as a method of suppressing plasma and radiation generated within the particle accelerator 1 from leaking outside the apparatus. For example, by pasting a radiation shielding rubber sheet on the inner wall of the particle accelerator 1 or pasting a radiation shielding rubber sheet on the outer wall of the particle accelerator 1, plasma generated within the particle accelerator 1 and radiation can be prevented from leaking out of the device.

Furthermore, in the above description, it is assumed that the high-voltage power supply 30 is supplied with power from the power supply 100 that converts power from a commercial power supply into DC power. However, the present invention is not limited to this, and the high-voltage power supply 30 may be supplied with power from a dry cell, a battery, or the like. Further, the input voltage to the high voltage power supply 30 is not limited to 3V to 5V. For example, the input voltage to the high voltage power supply 30 may be DC9V, DC12V, or the like. The high voltage power supply 30 may be configured to output a voltage (for example, about 400,000 V) necessary for arc discharge regardless of the input voltage. When an alkaline battery is used to drive the high voltage power source 30, a cable connecting the commercial power source and the power source 100 is not required, so the operability of the particle acceleration unit 2 is improved. Further, the high voltage power supply 30 may be an AC/DC converter that receives commercial power as input and outputs the voltage necessary for arc discharge.

Furthermore, in the above description, as shown in FIG. 6, a case has been described in which a plurality of openings 22c are formed around the opening 22b. However, the opening 22c is not limited to this. For example, the inner diameter of the opening 22c may be increased, or the opening 22c may be randomly arranged around the opening 22b. Similarly, the arrangement and size of the opening 18c shown in FIG. 7 may be arbitrary. It is sufficient that the opening 18c and the opening 22c overlap to form an opening.

In the above description, a case has been described in which plasma (charged particles) moves along a magnetic field in a direction indicated by lines of magnetic force directed from one surface of each opposing surface of the inner wall of the shielding container 200 to the other surface. However, within the shielded container 200, for example, the magnet 251 (N pole) placed on the −Z side surface of the lid 220 moves toward the magnet 254 (S pole) placed on the +X side inner surface of the shielded container body 210. A magnetic field or a magnetic field directed from the magnet 254 (N pole) placed on the -X side inner surface of the shielding container body 210 to the magnet 252 (S pole) placed on the +Z side surface (bottom surface) of the shielding container body 210, etc. is also formed. The plasma ejected from the particle acceleration unit 2 also moves along these magnetic fields.

Although several embodiments of the invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention, as well as within the scope of the invention described in the claims and its equivalents.

DESCRIPTION OF SYMBOLS 1... Elementary particle accelerator 2... Particle acceleration unit 10... Plasma generation part 11... First electrode 11a... First discharge part 11b... Conductive part 15... Second electrode 15a... Second discharge part 15b... Conductive part 17... First Magnet 17a...Through hole 18...Second magnet 18b...Through hole 18c...Opening 20...Case 21...Case body 21b, 22b, 22c...Opening 22...Cap 30...High voltage power supply 41, 42, 45, 46...Washer 43, 44 , 47... Nut 100... Power supply 200... Shielding container 210... Shielding container body 220... Lid 230, 231, 232, 233... Shielding plate 240... Concrete 251, 252, 253, 254... Magnet 260... Absorption plate 270... Coil

Claims (4)

A shielding container that houses a particle acceleration unit that generates plasma by arc discharge and shields plasma emitted from the particle acceleration unit,
The shielding container is formed of concrete and a shielding plate containing at least one of magnesium, lead, and cobalt,
Magnets are arranged on the inner wall of the shielding container, magnetized so that an N pole appears on one of the opposing surfaces and an S pole appears on the other surface,
Shielded container. An absorbing plate made of an oxidized magnetic material is provided on the inner wall of the shielding container.
A shielded container according to claim 1 . A coil is arranged on the inner wall of the shielding container, one end of which is grounded and the other end of which is in an open state.
A shielded container according to claim 2 . A radiation shielding rubber sheet is arranged on the inner wall or outer wall of the shielding container,
A shielded container according to claim 2 .

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