WO2021107322A1 - Isol uranium target transfer device - Google Patents

Abstract

The present invention relates to a transfer device which can safely transfer a uranium target, which is to be transferred, by solving a problem caused by physical or chemical properties of the uranium target. The transfer device comprises: an external case, at least one surface of which is open; a cover part which can open or close the open surface of the external case; a fastening part for fastening and fixing the external case and the cover part; a fixing part which is formed inside the external case and fixes an object to be transferred; and a pressure management part formed outside the external case and including a port communicating with a space inside the external case.

Description

ISOL Uranium Target Carrier

The present invention relates to a delivery device for uranium carbide (hereinafter referred to as a uranium target), which is an ISOL target material. Defect-free uranium carbide (UCx) suitable for specifications is used as the target material for the ISOL (Isotope Separation On-Line) device of the heavy ion accelerator facility. While uranium carbide has great fissile atom density and thermal conductivity compared to uranium oxide, it is easily oxidized in air by water and oxygen, and has a disadvantage in that it reacts rapidly with water vapor to ignite. Therefore, the ISOL uranium target transport device according to the present invention relates to a device for safely transporting uranium carbide manufactured in a nuclear material manufacturing facility to a heavy ion accelerator facility while preventing oxidation and without physical damage.

The ISOL uranium target is for the development of a linear accelerator that provides the world's largest high energy (200 MeV/u), high current (400 kW) heavy ion beam. ISOL (Isotope Separation On-Line), the world's first rare isotope generation process It refers to a uranium target independently designed to simultaneously apply element separation) and IF (In-flight Fragmentation). Among them, ISOL is a device that injects a proton beam (70 MeV, 10 kW) into a target material and produces various types of Rare Isotope (RI) beams through proton-induced fission. Referring to FIG. 2 , the source and shape of the ISOL uranium target can be confirmed.

In order to utilize the disk-shaped, flawless uranium target, which is the ISOL target material manufactured at the nuclear material manufacturing facility, for basic scientific research on the heavy ion accelerator, it is necessary to safely transport the uranium target from the place where the uranium target was manufactured to the heavy ion accelerator device. It is essential. However, the uranium target can be oxidized or ignited by reacting with moisture in the atmosphere, and the low T/D ratio (thickness; 1.3mm, diameter; 50mm), low density (19.5%TD) and large porosity ( 70%), so it may be easily deformed or damaged.

As a container for storing and storing disk-shaped objects, Korea Patent Publication No. 10-1129486 'substrate storage container' has been disclosed, but this does not take into account the characteristics of the uranium target as described above. Therefore, the prior art has a problem in that it is difficult to safely transport a uranium target physically or chemically.

In addition, to protect the uranium target and prevent leakage of uranium material, the requirements for the containment of the container are essential. However, the conventional technology related to a container having a sealing function simply focuses on the sealing function itself, and does not consider a special purpose such as transport of a uranium target.

Therefore, in order to physically and chemically transport the target material, uranium carbide, safely, there is a need for a delivery device that comprehensively considers the charge and withdrawal of the target material, and the shape, radiation, and physical or chemical characteristics of the target.

It is an object of the prior art to provide a transport device that prevents deformation, damage and oxidation of a target material such as uranium carbide for the problem that a storage container or a closed container according to the prior art is difficult to store or transport a target material such as uranium carbide .

The present invention for achieving this object is a transport device, comprising: an enclosure in which at least one side of a container is opened; a cover part capable of opening and closing the open side of the enclosure; and a fastening part for fastening and fixing the enclosure and the cover part; It is formed in the interior of the enclosure, it characterized in that it comprises a pressure management unit formed outside the housing and a fixing portion for fixing the transfer target and having a port communicating with the inner space of the enclosure.

Preferably, the port has a pressure check port and an inlet or outlet connected to a shut-off valve or a detachable pressure gauge, and includes a connection port connected to a 3-way valve.

In addition, preferably located in the interior of the enclosure, the outer surface is engaged and fixed by the fixing portion further comprises an inner box in which a hollow portion is formed.

In addition, preferably, a portion of the enclosure or the cover portion is formed to be transparent, so that the inside of the enclosure can be observed from the outside.

In addition, preferably, the cover part includes a protrusion protruding in the inner direction of the enclosure, and the protrusion part has a flat surface.

Also, preferably, the inner box is formed of an elastic or soft material capable of protecting the uranium target from external impact.

In addition, preferably inserted into the hollow portion of the inner box, in contact with the protrusion when the cover portion is fastened to the enclosure, formed of a carbon material, and further comprising a target special container capable of loading a uranium target. .

In addition, preferably, the target special container is designed to simultaneously apply the rare isotope generation process ISOL (Isotope Separation On-Line) and IF (In-flight Fragmentation) at the same time to manufacture a uranium target or a conveying device, characterized in that used for conveying.

In addition, preferably, in the transport device, when the uranium target transport operation is performed, the pressure of the inert gas charged at a pressure ^{of 1.2 kg/cm 2 inside the transport device is maintained for 48 hours.}

The device for transporting a uranium target according to the present invention prevents oxidation of the uranium target in the process of transporting the uranium target designed with special specifications and characteristics, and has the effect of safely transporting without fear of deformation, deterioration or damage of shape.

1 is a perspective view of a state in which a uranium target delivery device according to an embodiment of the present invention is fastened.

2 schematically illustrates the source or shape of a uranium target according to an embodiment of the present invention.

Figure 3 schematically shows the shape of a special container (Graphite container) of the uranium target according to an embodiment of the present invention.

Figure 4 is an exploded view showing the configuration of the uranium target delivery device.

Figure 5 shows the shape of the fixing portion and the state in which the inner box is fixed to the fixing portion.

6 illustrates a pressure management unit.

7 shows the inner compartment of the uranium target delivery device and the target special container.

8 is a view showing the cover of the uranium target delivery device.

9 is a diagram illustrating a transfer process of a uranium target according to an embodiment of the present invention.

Specific structural or functional descriptions presented in the embodiments of the present invention are only exemplified for the purpose of describing embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention may take various forms. In addition, it should not be construed as being limited to the embodiments described herein, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

When a component is referred to as being “connected” or “connected” to another component, it should be understood that it may be directly connected or connected to the other component, but other components may exist in between. something to do. On the other hand, when an element is referred to as being “directly connected” or “in direct contact with” another element, it should be understood that no other element is present in the middle.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

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

Figure 2 schematically shows the source or shape of the uranium target to be transferred according to an embodiment of the present invention. The uranium target is the world's first rare isotope generation process, ISOL (Isotope Separation On-Line) and IF (In-flight) for the development of a linear accelerator that provides the world's largest high energy (200 MeV/u), high current (400 kW) heavy ion beam. It is independently designed to simultaneously apply fragmentation.

According to FIG. 2 , the uranium target may be formed in the shape of a thin disk based on a specification of 50 mm in diameter, 1.3 mm in thickness, 2.5 g/cm ^{3 in density, and 70% porosity.} However, the uranium target is not limited by the above numerical values or the contents indicated in FIG. 2 .

The ratio of using uranium and carbon (Graphite) or the diameter of the target of the uranium target is determined by a person having ordinary knowledge in the technical field to which the present invention belongs (hereinafter referred to as "those skilled in the art") in order to increase the probability of occurrence of rare isotopes. It can be changed appropriately.

3 schematically shows the shape of a uranium target special container 180 according to an embodiment of the present invention. The target special container 180 is used for heat treatment or storage of the uranium target, and as a container that can be loaded in the heavy ion accelerator device, it can also be used for manufacturing and transporting the uranium target. The uranium target to be transported according to the present invention is transported in a state loaded in the target special container 180 . Target special container 180 may include a guide (Guide) in the portion in which the uranium target is charged in order to prevent deformation or damage of the uranium target during heat treatment for manufacturing the uranium target, in which case impurities are introduced into the uranium target In order to prevent this, the material of the target special container 180 may be formed of carbon (Graphite).

However, the shape or material of the target special container 180 is not limited to that shown in FIG. 3 . The shape or material of the target special container 180 may be changed according to changes in the material or shape (diameter, thickness, density, and target loading quantity) of the uranium target.

Referring to FIG. 1 , a perspective view of a state in which a uranium target transport device (hereinafter, referred to as a “transport device”) 100 according to an embodiment of the present invention is fastened can be confirmed. The transport device 100 includes an enclosure 110 and a cover unit 150 . The enclosure 110 may be formed in a cylindrical shape with one surface open, and may include a handle 111 , a support part 112 , a fastening part 140 , and a pressure management part 130 .

The enclosure 110 provides a space for accommodating the target special container 180 , and the open entrance of the enclosure 110 is closed by the cover part 150 . The enclosure 110 and the cover part 150 are coupled and fixed to each other by the fastening part 140 to seal the inner space of the enclosure 110 . The material of the enclosure 110 has strength enough to maintain its shape in a vacuum state or a state in which a predetermined positive pressure is formed inside. Therefore, a metal such as stainless steel or aluminum is preferable as the material of the enclosure 110 .

The handle 111 is formed in a 'C' shape and may be attached to the outer surface of the enclosure 110 . It is formed on the upper portion of the enclosure 110 so that a user can easily transport the carrying device 100 , and may be formed in plurality if necessary. However, the shape of the handle 111 is not limited to the 'C' shape, and includes a shape that can be appropriately modified by those skilled in the art to make the transport of the transport device 100 convenient.

The support part 112 is positioned under the enclosure 110 and is formed to support the lower surface of the enclosure 110 . The support part 112 provides a stable support so that the casing 110 does not move when the casing 110 is put down on the ground. Therefore, the support portion 112 to support the wide ground, and at the same time to support the lower surface of the enclosure 110 as a portion for accommodating the outer peripheral surface of the enclosure (110). The support part 112 may be formed in a shape that can be appropriately deformed by those skilled in the art according to the shape of the lower surface of the enclosure 110 .

The fastening part 140 may be formed adjacent to the open inlet portion of the enclosure 110 , and may include a flange, a hinge 141 , and a butterfly nut 142 . The flange is formed to be fixed along the outer circumferential surface of the inlet of the enclosure 110 , grooves are provided at an edge of the flange at regular intervals, and a hinge 141 is included in the groove. While the hinge 141 is fixed to the flange, it is connected to one end of the butterfly nut 142 . Therefore, the butterfly nut 142 is rotated by the hinge 141 and can be inserted into and removed from the groove formed at the edge of the flange.

When the cover part 150 is fastened, the butterfly nut 142 is rotated into a groove formed on the edge of the cover part 150 to be inserted, and then the butterfly nut 142 is tightened to seal the entrance of the enclosure 110 with the cover part 150 . can The specific structure and shape of the fastening part 140 may include other shapes that can be appropriately modified by those skilled in the art while satisfying the sealing function.

The pressure management unit 130 is formed outside the enclosure 110 , and may include a port 131 , a valve 132 , and a pressure gauge 133 . The port 131 is provided with a pressure check port (131a) and a connection port (131b). The pressure management unit 130 provides a function of injecting a gas into the inner space of the enclosure 110 to apply pressure, conversely forming a vacuum, or checking the internal pressure.

Referring to FIG. 6 , a detailed view of the pressure management unit 130 is shown. The pressure check port (131a) and the connection port (131b) are in communication with the inner space of the enclosure (110) can pass the gas. The pressure check port 131a is connected to the pressure gauge 133 , and the connection port 131b is connected to the valve 132 to have an inlet 134 or an outlet 135 .

The pressure gauge 133 is a device for checking the internal pressure of the enclosure (110). When the target special container 180 loaded with the uranium target is loaded into the transport device 100 , an inert gas (argon, etc.) is charged into the transport device 100 at a constant pressure, and the inert gas is discharged from the transport device 100 during the transport process. A pressure gauge 133 may be used to check whether it leaks out.

Preferably, it may further include a shut-off valve between the pressure check port (131a) and the pressure gauge (133). In the process of loading the target special container 180 into the transport device 100 , the interior of the transport device 100 may be placed in a vacuum state. At this time, since the pressure gauge 133 may be damaged in a vacuum state, a shut-off valve may be provided between the pressure check port 131a and the pressure gauge 133 in order to block the effect of the vacuum state.

The inlet 134 of the connection port 131b is an inlet for injecting gas, and the outlet 135 is an outlet for taking out the gas inside the enclosure 110 . Therefore, the line for injecting the gas and the line for discharging the gas can be connected to the connection port 131b at the same time and used. Through this, the general air remaining in the connection port 131b itself is prevented from flowing into the interior of the enclosure 110 .

Preferably, the valve 132 installed in the connection port 131b may include a 3-way valve. Accordingly, the inlet 134 or the outlet 135 line may be selectively closed, or the inlet 134 and the outlet 135 line may be closed together.

The process of putting the target special container 180 into the transport device 100 includes a process of forming a vacuum state inside the enclosure 110 and a process of filling it with an inert gas. In consideration of the above process, the connection port 131b has an inlet 134 , an outlet 135 , and a 3-way valve, so that the target special container 180 can be conveniently put into the transport device 100 .

Figure 4 is a view showing the internal configuration of the disassembled uranium target delivery device can be confirmed. Referring to FIG. 4 , the cover part 150 , the target special container 180 , the inner box 170 , and the fixing part 120 can be seen.

The cover part 150 corresponds to a lid that closes the entrance of the enclosure 110 . The cover part 150 may include a cover plate 151 , a transparent plate 153 , a transparent plate fixing flange 154 , and a protrusion 160 formed in a circular plate.

Referring to FIG. 8 , the cover part 150 is illustrated in detail. The cover plate 151 may include a fastening groove at the edge and an open surface 152 at the center. The fastening groove provides a space in which the butterfly nut 142 of the fastening part 140 can be inserted and fastened. The open surface 152 is a circular hole in the middle of the cover plate 151 , and provides a view through which the inside of the enclosure 110 can be observed.

The transparent plate 153 is formed adjacent to the cover plate 151 , and has a larger area than the open surface 152 formed on the cover plate 151 . Also, its shape may vary depending on the shape of the open surface 152 . The transparent plate 153 blocks the internal space and the external space of the enclosure 110, and is formed of a transparent material and provides a function to observe the target special container 180 loaded in the enclosure 110 from the outside. .

The transparent plate fixing flange 154 functions to fix the transparent plate 153 in close contact with the cover plate 151 . A plurality of bolt fastening holes may be formed at an edge of the transparent plate fixing flange 154 at regular intervals. A hole corresponding to the bolt fastening hole of the transparent plate fixing flange 154 is formed in the cover plate 151 . Accordingly, the transparent plate fixing flange 154 can be fixed to the cover plate 151 by passing the bolt through the bolt fastening hole of the transparent plate fixing flange 154 and fastening it to the corresponding hole of the cover plate 151 . . The transparent plate 153 is fixed between the transparent plate fixing flange 154 and the cover plate 151 .

Preferably, a rubber packing may be further included between the transparent plate 153 and the cover plate 151 . When a uranium target is transported, a positive pressure is formed inside the transport device 100 , and sealing properties of the transport device 100 can be improved by including a rubber packing. That is, the gas inside the conveying device 100 is prevented from leaking. The rubber packing has a hole in the middle, and is formed so that the view through the transparent plate 153 is not obstructed.

The protrusion 160 may be formed to protrude from the open surface 152 of the cover plate 151 in the direction of the inner space of the enclosure 110 . The protrusion 160 may include a contact member 161 formed to be spaced apart from the cover plate 151 by a predetermined distance, and a support member 162 for connecting and fixing the cover plate 151 and the contact member 161 . The contact member 161 has a ring shape with a hole in the middle, and is formed so as not to block the view of the inside of the enclosure 110 from the outside through the open surface 152 . In addition, the contact member 161 may have a flat surface and may contact or support one surface of the target special container 180 by the flat surface.

When the cover part 150 is fastened to the enclosure 110 , the contact member 161 is in contact with one surface of the target special container 180 inserted into the inner box 170 to restrict the movement of the target special container 180 . perform the function Since the hollow portion 173 of the inner box 170 is open on one side, even if the target special container 180 is inserted into the hollow portion 173, it has a structure that can come out again through the insertion port. Accordingly, the protrusion 160 formed on the cover part 150 blocks the open portion of the inner box 170 to restrict the target special container 180 from escaping. The length of the support member 162 may be formed such that the contact member 161 does not apply excessive pressure to the target special container 180, and appropriately restricts the movement. The shape or material of the contact member 161 or the support member 162 includes those that can be appropriately modified by those skilled in the art within the range for achieving the above object.

The target special container 180 is used for manufacturing and transporting the uranium target, and is a container loaded into the heavy ion accelerator together with the uranium target. As described above, reference may be made to the schematic shape of the target special container 180 in FIG. 3 . The inner box 170 is a container containing the target special container 180 , and is fixed to the fixing unit 120 .

Referring to FIG. 7 , an inner box 170 and a target special container 180 are shown. The target special container 180 may be formed as a cylinder having a uniform circular cross-section. It is formed as an assembly that is separable along its length, and a space is provided inside to accommodate a uranium target. Both end sections of the cylinder are closed and detachable.

The inner box 170 accommodates the target special container 180 and thus includes a hollow portion 173 that is slightly larger than the target special container 180 . It may also include a cap 172 . The body 171 of the inner box 170 may be formed in a larger cylindrical shape than the target special container 180 to accommodate the target special container 180 . In addition, the size of the circular cross-section of the body 171 may be changed. For example, the diameter of the circular cross-section of the body 171 is constantly changed in the longitudinal direction, and accordingly, the outer surface of the body 171 is inclined in the longitudinal direction. This inclination is a form for efficiently fixing the inner box 170 to the fixing unit 120 . Accordingly, the shape of the body 171 may vary according to the shape of the fixing part 120 .

The hollow part 173 is formed to be finely larger than the target special container 180 to minimize the gap after the target special container 180 is inserted. Accordingly, since the movement of the target special container 180 during the movement of the transport device 100 is minimized, damage to the target special container 180 is prevented.

The cap 172 is a member that opens and closes one end of the inner box 170 , and may be coupled or separated by a screw thread from the body 171 . When the target special container 180 is inserted into the inner box 170 , it is inserted into the hollow part 173 . At this time, by blocking one end of the hollow portion 173 with the cap 172 , the target special container 180 can be easily inserted to the end of the hollow portion 173 . Conversely, when the target special container 180 is taken out of the inner box 170 , the cap 172 is opened and the target special container 180 is pushed out in a direction opposite to the position of the cap 172 . Accordingly, the cap 172 facilitates insertion or withdrawal of the target specialized container 180 .

The material of the inner box 170 may be formed of an elastic or soft material (rubber or Teflon). This is to minimize the possibility of an impact occurring in the process of inserting the special target container 180 that is weak against impact into the inner box 170 or in the process of transporting the transport device 100 . The material of the inner box 170 may be appropriately modified by those skilled in the art for the purpose of absorbing the impact transmitted to the target special container 180 .

The fixing unit 120 is a member for fixing the inner box 170 into which the target special container 180 is inserted from the inside of the outer box 110 . The fixing part 120 may include a fixing rod 121 and a fixing flange 123 .

Referring to FIG. 5 , the fixing rod 121 may be formed in plurality, and one end of the fixing rod 121 may be fixed to the inner surface 113 of the enclosure. The inner surface of the enclosure 113 corresponds to a surface formed opposite to the entrance of the enclosure 110 . One end of the fixing rod 121 can be fixed at an appropriate position so that the inner box 170 can be inserted and fixed in the space formed by being surrounded by a plurality of fixing rods 121 . In this embodiment, according to the shape of the inner box 170, the fixing rod 121 is fixed to the inner surface 113 of the enclosure in an inclined form rather than a right angle. Accordingly, the inner box 170 with an inclined outer surface may be inserted into the space surrounded by the fixing rod 121 to engage.

A screw line may be formed at the other end of the fixing rod 121 . Therefore, after inserting the inner box 170, the other end of the fixing rod 121 is penetrated through the hole formed in the fixing flange 123, and the inner box 170 can be fixed in such a way that the nut is fastened.

The fixing rod 121 may be formed of a metal material, but the outer surface of the fixing rod 121 may be surrounded by an elastic material 122 made of a soft material. Therefore, in the process of inserting the inner box 170 into the fixing unit 120 , it is possible to alleviate the impact caused by the contact with the hard fixing rod 121 .

The shape or fixing position of the fixing rod 121 is not limited to this embodiment, and includes those skilled in the art that can be appropriately modified for the purpose of stable fixing of the inner box 170 .

9 is a flowchart illustrating a process of transporting a uranium target using the transport device 100 . Since the uranium target reacts with moisture in the atmosphere and is rapidly oxidized, the transport process is considered not to expose the uranium target to the atmosphere.

Before the uranium target is charged into the transport device 100 , a vacuum ^{of 1.0x10 -3±1} kg/cm ^{2 is formed inside the transport device 100 to remove moisture in the air.} After the uranium target is charged, an inert gas ^{is injected into the delivery device 100 at a pressure of 1.2±0.2 kg/cm 2} to prevent inflow of external air, and the transfer period or the heavy ion accelerator is monitored for at least 48 hours.

The vacuum pressure and gas filling pressure are set to minimum conditions to prevent deformation and breakage of the uranium target, and may be appropriately changed by those skilled in the art.

The operation of placing the target special container 180 into the transport device 100 is performed inside the glove box after the glove box is filled with an inert gas (argon, etc.) and circulated. At this time, the inside of the transport device 100 may be repeatedly performed several times to form a vacuum state and fill the inert gas so that air does not enter.

When the transport process is described in order, ^{the first step of forming a vacuum of 1.0x10 -3±1} kg/cm ² inside the transport device 100 and filling the glove box with an inert gas and the transport device 100 are described above. The second step of transporting into the glove box, the third step of putting the target special container 180 inside the transport device 100 inside the glove box and fastening the cover part 150, and an inert gas ( Ar, etc.) at a pressure of 1.2±0.2 kg/cm ² may include a fourth step of blocking and monitoring the external atmosphere and a fifth step of removing the transport device 100 from the glove box and transporting it to the destination.

At this time, the inside of the glove box is filled with an inert gas of positive pressure in the process of putting the target special container 180 into the transport device 100 . In the fifth step of transporting the target special container 180 out of the glove box, it is monitored and checked whether the gas inside is leaking through the pressure gauge 133 of the transport device 100 .

In the above process, if it is determined that the inlet of moisture in the air is insignificant because the gas inside the glove box is sufficiently circulated as an inert gas, the first step may be omitted.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications and changes are possible without departing from the technical spirit of the present invention. It will be clear to those who have the knowledge of

[Explanation of code]

100: uranium target delivery device

110: enclosure 111: handle

112: support 113: inner surface of the enclosure

120: fixed portion 121: fixed bar

122: elastic material 123: fixed flange

130: pressure management unit 131: port

131a: pressure check port 131b: connection port

132: valve 133: pressure gauge

134: inlet 135: outlet

140: fastening portion 141: hinge

142: butterfly nut

150: cover part 151: cover plate

152: open side 153: transparent plate

154: transparent plate fixing flange

160: protrusion 161: contact member

162: support member

170: inner compartment 171: body

172: cap 173: hollow part

180: target special vessel

Claims (9)

1. A conveying device comprising:

   an enclosure in which at least one side of the container is open;

   a cover part capable of opening and closing the open surface of the enclosure;

   a fastening part for fastening and fixing the enclosure and the cover part;

   a fixing part formed inside the enclosure and fixing the object to be transported; and

   and a pressure management unit formed outside the enclosure and having a port communicating with the inner space of the enclosure.
2. According to claim 1,

   The port may include a pressure check port connected to a shut-off valve or a detachable pressure gauge; and

   A conveying device having an inlet or outlet and comprising a connection port connected to a 3-way valve.
3. 3. The method of claim 2,

   It is located in the interior of the enclosure, the outer surface is fixed by engagement by the fixing unit, the transport device characterized in that it further comprises an inner box in which a hollow portion is formed.
4. 3. The method of claim 2,

   The enclosure or a portion of the cover portion is formed to be transparent, so that the inside of the enclosure can be observed from the outside.
5. 4. The method of claim 3,

   The cover part includes a protrusion protruding in an inward direction of the enclosure, and the protrusion part has a flat surface.
6. [6] The delivery device according to claim 3 or 5, wherein the inner box is formed of an elastic or flexible material capable of protecting the uranium target from external impact.
7. 7. The method of claim 6,

   The delivery device further comprising a target special container inserted into the hollow portion of the inner box, in contact with the protrusion when the cover portion is fastened to the enclosure, formed of a carbon material, and capable of loading a uranium target.
8. 8. The method of claim 7,

   The target special container,

   ISOL (Isotope Separation On-Line) designed to simultaneously apply rare isotope generation processes, ISOL (Isotope Separation On-Line) and IF (In-flight Fragmentation), a transport device characterized in that it is loaded with a uranium target.
9. 8. The method of claim 7,

   The transport device is a transport device, characterized in that during the uranium target transport operation, the pressure of the inert gas charged at a pressure ^{of 1.2 kg/cm 2 inside the transport device is maintained for 48 hours.}

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