KR101624219B1

KR101624219B1 - A multiple single spoke resonators cryomodule of heavy ion accelerator

Info

Publication number: KR101624219B1
Application number: KR1020150048264A
Authority: KR
Inventors: 김우강; 김형진; 이민기; 김영권; 조용우
Original assignee: 기초과학연구원
Priority date: 2015-04-06
Filing date: 2015-04-06
Publication date: 2016-05-26
Also published as: WO2016163689A1

Abstract

The present invention relates to a multiple single spoke accelerating tubes cryostat of a heavy ion accelerator. The present invention comprises: a vacuum vessel creating a vacuum inside through a vacuum pump connected to one side of the vacuum vessel; a pipe housing arranged on the upper part of the vacuum vessel; multiple single spoke accelerating tubes, which are separately installed inside the vacuum vessel by multiple supporting frames and each of which includes an internal tube for maintaining the vacuum state and an external tube into which a liquid for testing the performance of a low temperature is inserted, for increasing the accelerating speed of heavy ion beams; a pipe module, installed inside the pipe housing, to provide the liquid for testing the performance into each of the single spoke accelerating tubes; and a support module connected to the pipe housing to support the pipe module and the single spoke accelerating tubes. The vacuum pump is connected to each of the single spoke accelerating tubes, while a tuner for preventing elastic distortion caused by external pressure is installed on the outer surface of each single spoke accelerating tube. By using the present invention, at least six single spoke accelerating tubes are formed, thereby increasing the accelerating speed of heavy ion beams and reducing the setup time for the performance test as the installation and disassembling are easy.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multiple single spoke resonator cryomodule of heavy ion accelerator,

The present invention relates to a heavy ion accelerator. More particularly, the present invention provides six or more single-spoke type acceleration tubes to increase the acceleration speed of the heavy ion beam to stabilize the acceleration of the heavy ion beam, Spoke type accelerator tube cryostat, which can be used to reduce the setup time for performance testing and to save labor costs.

Accelerators are a type of device that accelerate charged particles. In other words, an accelerator accelerates electrons, protons, and ions from a charged particle in a high energy state (for example, a high energy state in the range of several million electron volts to a water tank electron volt). In accordance with the acceleration principle, Accelerating synchrotron.

The high-frequency accelerator can be divided into a linear accelerator, a cyclotron, and a high-frequency synchrotron according to the acceleration method.

In addition, the size of the high-frequency accelerator also varies depending on the application, and it is a high-frequency accelerator that obtains a large energy, and a large high-frequency synchrotron for a cancer treatment that supplies an ion beam of a relatively low energy level recently from a large accelerator for a nuclear physics / .

In such a high frequency accelerator, a high frequency acceleration cavity has been used to accelerate the charged particle.

This high-frequency acceleration cavity generates high-frequency electric fields of several MHz to several tens MHz by excitation by the resonance vibration of the high-frequency cavity in synchronization with traveling of the charged particles.

On the other hand, there is a heavy ion accelerator as a device for accelerating ions of atoms other than light protons or helium in connection with such accelerators.

The middle-ion accelerating tube designed by the electromagnetic shape optimization includes a quarter wave resonator (QWR), a single spoke resonator (SSR), a half-wave acceleration tube half wave resonator, HWR).

However, the type of heavy ion accelerator is the same as that of the light source or electron, but since the ion has a large mass, a strong electromagnetic field is required.

In addition, the cryomodule constituting the heavy ion accelerator is composed of various accelerators (QWR, HWR1, HWR2, SSR1, SSR2), and these accelerators require a performance test before they can be used in earnest.

Conventionally, the conventional performance test method is manually performed using a vertical individual low temperature maintenance apparatus, and thus it takes a long time to assemble the modules for the performance test, and it is difficult to perform a large number of tests. In addition, there is a problem that labor costs are increased because it is performed manually during the test.

(Patent Document 1) JP-A-2014-044098 (published on Mar. 13, 2013)

(Patent Document 2) Japanese Unexamined Patent Application Publication No. 2006-196353 (published on July 27, 2006)

The present invention has six or more single-spoke type acceleration tubes to increase the acceleration speed of the heavy ion beam, to easily install and disassemble each module, to shorten setup time for performance test, and to save labor costs. A plurality of single-spoke acceleration tube cryogenic maintenance devices are provided.

In order to accomplish the above object, a plurality of single spoke type accelerating tube cryostats of a heavy ion accelerator of the present invention comprises: a vacuum vessel for forming a vacuum state through a vacuum pump connected to one side; A pipe housing disposed above the vacuum vessel; A plurality of spaced-apart inner tubes, each of which is maintained in a vacuum state, and an outer tube into which a low-temperature performance test fluid is injected, Single spoke type acceleration tube; A pipe module installed inside the pipe housing to provide the performance test fluid to each of the plurality of single spoke type acceleration tubes; And a support module coupled to the pipe housing to support the plurality of single spoke type acceleration tubes and the pipe modules, wherein the vacuum pump is connected to each of the plurality of single spoke type acceleration tubes, And a tuner for preventing elastic deformation caused by external pressure is provided on the outer surface of each of the single spoke type acceleration tubes.

In order to achieve the above object, the pipe module of a plurality of single-spoke type accelerating tube cryogenic maintenance apparatuses of a heavy ion accelerator of the present invention comprises a plurality of single spoke type accelerating tubes for supplying a performance test fluid or a vaporized performance test fluid Piping to discharge; And a reservoir installed in the pipeline for replenishing the introduction or discharge of the performance test fluid.

In order to achieve the above object, the reservoir of the plurality of single spoke type accelerating tube cryostats of the heavy ion accelerator of the present invention includes a main reservoir for storing helium at a set temperature required in the course of the process; And a sub-reservoir for storing helium out of the set temperature, wherein a heat exchanger is provided between the main reservoir and the sub-reservoir to heat-exchange the temperature of the helium according to the set temperature.

In order to attain the above object, the present invention is characterized in that at least one heater is mounted on each of the main reservoir and the sub reservoir of the plurality of single spoke type accelerating tube cryogenic maintenance apparatuses of the heavy ion accelerator.

In order to achieve the above object, the support module of the plurality of single spoke type acceleration tube cryogenic maintenance devices of the heavy ion accelerator of the present invention includes: a support frame surrounding a plurality of single spoke type acceleration tubes; And a support bar for connecting the support frame and the pipe housing.

In order to achieve the above object, the performance test fluid of the plurality of single spoke type accelerating tube cryostats of the heavy ion accelerator of the present invention is liquid helium.

In order to accomplish the above object, the present invention provides a single-spoke acceleration tube cryogenic maintenance apparatus for a heavy-duty accelerator, further comprising a magnetic shield installed to surround the plurality of single-spoke acceleration tubes and the line module, .

In order to achieve the above object, a plurality of single spoke type accelerating tube cryostats of a heavy ion accelerator of the present invention is installed inside the vacuum vessel, and circulates refrigerant in the vacuum vessel to activate a low temperature state inside the vacuum vessel And a thermal shield for the heat shield.

In order to accomplish the above object, the present invention provides a thermal spark-ignition type cryogenic maintenance apparatus comprising: a plurality of single-spoke type accelerating tube cryogenic maintenance apparatuses each having a refrigerant pipe through which a refrigerant can flow, .

In order to accomplish the above object, a plurality of single spoke type acceleration tube cryogenic maintenance apparatuses of a heavy ion accelerator of the present invention is provided with a sliding frame below the plurality of single spoke type acceleration tubes, And a sliding rail for guiding the slide rail.

In order to accomplish the above object, a plurality of single spoke type accelerating tube cryostats of a heavy ion accelerator of the present invention comprises: a vacuum vessel for forming a vacuum state through a vacuum pump connected to one side; A pipe housing disposed above the vacuum vessel; A plurality of spaced-apart inner tubes, each of which is maintained in a vacuum state, and an outer tube into which a low-temperature performance test fluid is injected, Single spoke type acceleration tube; A pipe module installed inside the pipe housing to provide the performance test fluid to each of the plurality of single spoke type acceleration tubes; A support module connected to the pipe housing to support the plurality of single spoke type acceleration tubes and the pipe modules; And a moving module installed below the vacuum vessel to move and support the vacuum vessel, wherein the vacuum pump is connected to each of the plurality of single spoke type acceleration tubes, and the plurality of single spoke type acceleration tubes And a tuner for preventing elastic deformation caused by external pressure is provided on each of the outer surfaces.

In order to accomplish the above object, the moving module of the plurality of single spoke type accelerating tube cryostats of the heavy ion accelerator of the present invention comprises: a moving frame for supporting the vacuum vessel; A plurality of casters rotatably coupled to a lower side of the moving frame; And a plurality of fixed plates coupled to the movable frame so as to be movable up and down to fix the movable frame to a set position.

In order to achieve the above object, the moving module of the plurality of single-spoke type accelerating tube cryogenic maintenance apparatuses of the heavy ion accelerator of the present invention includes a plurality of load distributing parts for distributing a load applied to the moving frame, And a plate.

The details of other embodiments are included in the detailed description and the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention and the manner of achieving them will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. However, it is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein, Are provided to fully disclose the scope of the present invention, and the present invention is only defined by the scope of the claims.

It is to be understood that the same reference numerals refer to the same components throughout the specification and that the size, position, coupling relationship, etc. of each component constituting the invention may be exaggerated for clarity of description. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

According to the present invention, accelerations can be stably achieved by increasing the acceleration speed of uranium ions as well as proton ions, which are mild ions, through six or more single-spoke type accelerators, and effectively accelerate the heavy ion beam to maintain vacuum and cryogenic temperatures The efficiency of the beam performance can be increased, and the performance of the acceleration tube can be improved by maintaining the cryogenic temperature.

In addition, when there is a possibility that elastic deformation due to external pressure such as pressure change or mechanical vibration may occur in a plurality of single spoke type acceleration tubes, the external pressure is uniformly distributed through the tuner, thereby preventing structural deformation due to elastic deformation or stress .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing the external appearance of a plurality of single-spoke type acceleration tube cryogenic maintenance apparatuses of a heavy ion accelerator according to the present invention; FIG.
2 is a front view showing the interior of the low temperature holding apparatus shown in FIG.
3 is a side view showing the interior of the low temperature holding apparatus shown in FIG.
4 is a perspective view showing a pipe module and a support module in the cryogenic maintenance apparatus shown in FIG.
5 is a perspective view showing the thermal shield in the low-temperature maintenance apparatus shown in FIG.
6 is a perspective view showing the moving module in the low-temperature holding apparatus shown in FIG.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor can properly define the concept of the term to describe its invention in the best way Should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. Also, the terms " part, "" module, "and" device "Lt; / RTI >

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a plurality of single-spoke type acceleration tube cryogenic maintenance apparatuses of a heavy ion accelerator according to the present invention will be described with reference to the accompanying drawings.

Referring to FIGS. 1 and 2, a plurality of single spoke type accelerating tube cryogenic maintenance apparatuses of a heavy ion accelerator according to an embodiment of the present invention includes a single spoke type acceleration tube 200, liquid helium (He) (200). &Lt; / RTI >

That is, a plurality of single spoke type accelerating tube cryostat devices of a heavy ion accelerator include a vacuum module 100, a plurality of single spoke type acceleration tubes 200, a pipe module 300, and a support module 400 do.

1 to 3, the vacuum module 100 forms a vacuum state for beam acceleration and includes a vacuum vessel 110, a vacuum pump 120, and a pipe housing 130.

The vacuum vessel 110 serves to protect a plurality of single-spoke type acceleration tubes 200 from the outside environment.

At least one vacuum port is formed on one side (bottom surface in this embodiment) of the vacuum vessel 210 so as to be connected to the vacuum pump 120.

The vacuum vessel 110 may be made of stainless steel (for example, STS316L) having excellent strength and corrosion resistance.

In the embodiment of the present invention, the vacuum vessel 110 is formed in a substantially cylindrical shape, but it is designed only for ease of storage of the plurality of single-spoke type acceleration tubes 200 and in connection with other modules, It does not need to be.

On one side of the vacuum vessel 210, a helium port 211 for receiving liquid helium and a beam port 212 for irradiating the accelerated beam are provided.

The vacuum pump 220 is disposed at one side of the vacuum vessel 210 and is connected to the vacuum port through a vacuum line. In order to accelerate the acceleration of the heavy ion beam in the plurality of single-spoke type acceleration tubes 200, Type accelerating tube 200 and the vacuum vessel 210 in a vacuum state.

For example, a plurality of vacuum pumps 220 may be connected to the vacuum vessel 210 and a plurality of single-spoke acceleration tubes 200, respectively.

The pipe housing 130 is installed in the form of a substantially hexahedron on the upper side of the vacuum vessel 110 and accommodates therein the pipe module 300 connected to the plurality of single spoke type acceleration pipes 200, It plays a role.

The pipe housing 130 is configured to communicate with the vacuum vessel 110 so that the pipe housing 130 is also maintained in a vacuum state.

Referring to FIGS. 2 and 4, in the low-temperature holding apparatus of the embodiment, six single-spoke type acceleration tubes 200 are horizontally arranged in a vacuum vessel 110 so that the number of conventional single- The acceleration speed of the heavy ion beam can be increased.

Each single spoke type acceleration tube 200 is formed in a substantially cylindrical shape and receives liquid helium from the pipe module 300 to perform a performance test as a single spoke type acceleration tube 200.

Each single spoke type acceleration tube is spaced apart from each other by a predetermined interval by a support frame, and each single spoke type acceleration tube is provided with a vacuum port 220.

The internal structure of the single spoke type accelerating tube 200 is not shown, but consists of a double tube of an inner tube and an outer tube.

Inside the inner tube, a vacuum is maintained for efficient beam acceleration of the single spoke type acceleration tube 200, and liquid helium is injected between the outer tube and the inner tube to maintain the low temperature of the single spoke type acceleration tube 200.

A vacuum line (not shown) of a vacuum pump described later is connected to the inner pipe, and pipe lines 310 of the pipe module are mechanically connected to upper and lower ends between the outer pipe and the inner pipe, respectively, .

A beam pipe 210 may be installed at the center of each single spoke type acceleration tube 200 so as to serve as a passage for accelerating the heavy ion beam.

A typical pressure vessel is made of a single continuous structure (i.e., an integrated structure) to prevent structural damage due to deformation and stress under internal pressure and external pressure. A single spoke type acceleration tube 200, which is a kind of pressure vessel, Is made of metal in superconducting state to obtain a high acceleration voltage and is very sensitive to frequency fluctuation due to its narrow operating frequency range.

In order to prevent elastic deformation of the single spoke type acceleration tube 200 due to external pressure such as pressure change or mechanical vibration, the present invention includes a tuner 250 capable of tuning the single spoke type acceleration tube 200 Respectively.

Thereby uniformly distributing the external pressure, thereby preventing the single spoke type acceleration tube 200 from being subjected to elastic deformation or structural failure due to stress.

2 and 4, the pipe module 112 supplies a performance test fluid, for example, liquid helium (He) to a plurality of single spoke type acceleration tubes 200, and includes a pipeline 310, (320) and a sub-reservoir (330).

The pipeline 310 connects the helium tank (not shown) with a plurality of single spoke type acceleration tubes. The pipeline 310 supplies liquid helium from the helium tank to a plurality of single spoke type acceleration tubes, And serves to return the vaporized helium to the helium tank side in the single spoke type acceleration tube.

The main reservoir 320 and the sub reservoir 330 are installed at one end of the pipeline 310 to serve as auxiliary helium tanks.

For example, if helium supplied from a plurality of single-spoke type accelerators or discharged from a plurality of single-spoke type accelerators does not reach the set value, the reservoir storing a predetermined amount of helium replenishes and supplies the helium It plays a role.

At this time, the reservoir may be divided into a main reservoir 320 and a sub reservoir 330. The main reservoir 320 and the sub reservoir 330 have a substantially cylindrical body with both ends closed. In each reservoir, an inlet port for supplying helium liquid from the helium tank and an outlet port for discharging the vaporized helium to the helium tank side are connected to each other And may be spaced apart at predetermined intervals.

The main reservoir 320 stores helium at a set temperature required in the process, and the sub reservoir 330 stores helium that is out of the set temperature. Therefore, a heat exchanger 340 is provided between the main reservoir 320 and the sub reservoir 330 to heat the helium to a predetermined temperature.

At least one heater 321 and 331 may be mounted on the main reservoir 320 and the sub reservoir 330 so as to heat the helium to a predetermined temperature.

Referring to FIGS. 2 and 4, the support module 400 stabilizes the arrangement and fixing state of the plurality of single spoke type acceleration tubes 200 and the pipe modules 300, and a plurality of single spoke type acceleration tubes A support frame 410 supporting the support frame 410, and a support bar 420 supporting the pipe module 300.

The support frame 410 is formed in a substantially rectangular frame shape so as to surround a plurality of single-spoke acceleration tubes.

In addition, the support frame 410 is divided into numbers corresponding to the numbers of the single-spoke acceleration tubes so that a plurality of single-spoke acceleration tubes are inserted, respectively.

A plurality of support bars 420 are provided and one end of each of the support bars 420 is connected to the support frame 410 and the pipe module 300 at a plurality of points and the other end of the support bars 420 is fixed to the upper end of the pipe housing 130, Spoke type acceleration tube and pipe module 300 that are placed in the pipe 410.

If the support bar is condensed in the vacuum vessel 210 because of the extremely low temperature in the vacuum vessel 210, the alignment state of the plurality of single-spoke type acceleration tubes may deviate from the set position, and the position of the beam port may be displaced Therefore, it is preferable that the support bar 420 is made of a material whose condensation is minimized at a low temperature. For example, the support bar may be formed of G10 or Invar.

The support bar 420 flows into the vacuum vessel 210 in a state where the length of the support bar 420 is adjusted at a normal temperature outside the vacuum vessel 210. Since the inside of the vacuum vessel 210 maintains a cryogenic temperature, predetermined condensation may occur . Therefore, a length adjusting member (not shown) may be mounted on one end of each support bar so that the length of the support bar 420 can be adjusted even in a state where it is disposed in the vacuum vessel 210.

By this support module 400, the plurality of single-spoke type acceleration tubes 200 can be individually disassembled and assembled easily, and thus the performance test can be performed stably and efficiently.

1 and 3, the low-temperature holding apparatus of the present invention includes a plurality of single-spoke acceleration tubes 200 inside a vacuum vessel 210 from the outside of a vacuum vessel 210 inside a vacuum vessel 210 And a magnetic shield 500 for shielding external electromagnetic waves from being applied.

When the external electromagnetic wave is transmitted to a plurality of single spoke type accelerating tubes, the cryogenic temperature state that is set may be unstable. Therefore, the magnetic shield 500 is directly installed on the inner wall without space with the vacuum vessel 210 to remove such interference elements. The magnetic shield 500 may be formed of Mu-matal of an alloy of 75% Ni, 20% Fe, and 5% Cu, for example.

Since the magnetic shield 500 is mounted on the inner wall of the vacuum vessel 210, the magnetic shield 500 is formed similarly to the inner shape of the vacuum vessel 210.

1 to 3 and 5, the low-temperature holding apparatus of the present invention is installed inside the vacuum vessel 210, preferably inside the magnetic shield 500, and circulates the refrigerant to the vacuum vessel 210 And a thermal shield 600 for activating the low-temperature state inside the heat shield 600.

Since the thermal shield 600 is mounted on the inner wall of the vacuum vessel 210 like the magnetic shield 500, the thermal shield 600 can be formed to correspond to the inner shape of the vacuum vessel 210.

The thermal shield 600 may be made of phosphorus oxide (PDC) having a high thermal conductivity, and nitrogen (N) in a gaseous state may be used as the refrigerant.

The refrigerant pipe 610 is bent in a zigzag shape several times so that the refrigerant can flow through the inner wall of the thermal shield 600. The refrigerant pipe 610 is fixed to the thermal shield 600 by the bracket 620 and the rivet And can be soldered to the plate 630.

At this time, the material of the bracket 620 may be made of phosphorus oxide (PDC) having a high thermal conductivity like the thermal shield 600 so as not to interfere with the role of the thermal shield 600.

1 and 3, a low-temperature holding apparatus according to the present invention includes a plurality of single-spoke acceleration tubes 200 in a vacuum vessel 110 so as to mount or separate a plurality of single- And a sliding module 700 installed to move the sliding module 700 in a sliding manner.

The sliding module 700 includes a sliding frame 710 coupled to a lower side of the thermal shield 600 and a sliding rail 720 disposed in parallel to the inner bottom of the vacuum vessel at predetermined intervals to guide the sliding frame 710 do.

That is, when a plurality of single spoke type acceleration tubes 200 are positioned on a sliding table (not shown) while being surrounded by the thermal shield 600 and the sliding table is positioned to correspond to one side of the vacuum vessel 110 The sliding frame 710 is pressed and moved into the vacuum vessel 110 through the sliding rail 720 in the vacuum vessel 110,

When the plurality of single spoke type acceleration tubes 200 are separated from the vacuum vessel 110, the above procedure may be performed in the reverse order.

Referring to FIGS. 1 and 6, the low-temperature holding apparatus of the present invention may further include a moving module 800 for moving the position of the vacuum module 100, if necessary.

The moving module 800 includes a moving frame 810 positioned below the vacuum vessel 110 and supporting the vacuum vessel 110, a plurality of casters 820 rotatably coupled to the lower side of the moving frame 810, And a plurality of fixing plates 830 coupled to the movable frame 810 such that the movable frame 810 can move upward and downward to fix the movable frame 810 to the set position.

The moving frame 810 is substantially quadrangular in plan view, and the caster 820 is coupled to eight places below each corner of the moving frame 810.

The fixing plate 830 may be coupled to eight lower portions of the moving frame 810 so as not to interfere with the casters 820.

The moving module 800 may further include at least one load distribution plate 840 coupled to the moving frame 810 at a substantially lower center thereof to disperse a load applied to the moving frame 810.

As described above, the plurality of single-spoke type acceleration tube cryogenic maintenance apparatuses of the present invention have six or more single-spoke type acceleration tubes to increase the acceleration speed of the heavy ion beam, The setup time for the test can be shortened.

Through this, the accelerations can be stabilized by increasing the accelerating speed of the light ion proton as well as the uranium which is the medium ion, and the efficiency of the beam performance can be improved by effectively accelerating the heavy ion beam so as to maintain the vacuum and the cryogenic temperature , And the performance of the acceleration tube can be improved by maintaining the cryogenic temperature.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will know well. Therefore, the spirit of the present invention is not limited to the embodiments included in the above description, but should be understood only in accordance with the following claims, and equivalents or equivalents of the claims are included in the scope of the present invention I will say.

10; Cryostat
100; Vacuum module
110; Vacuum vessel
120; Vacuum pump
130; Pipe housing
200; Multiple single-spoke accelerators
210; Beam pipe
300; Pipe module
310; Pipeline
320,330; Reservoir
340; heat transmitter
400; Support module
410; Support frame
420; Support bar
500; Magnetic shield
600; Thermal Shield
610; Refrigerant pipe
620; Bracket
700; Sliding module
710; Sliding frame
720; Sliding rail
800; Moving module
810; Moving frame
820; Casters
830; Fixed plate
840; Load distribution plate

Claims

A vacuum vessel for forming a vacuum state through a vacuum pump connected to one side;
A pipe housing disposed above the vacuum vessel;
A plurality of spaced-apart inner tubes, each of which is maintained in a vacuum state, and an outer tube into which a low-temperature performance test fluid is injected, Single spoke type acceleration tube;
A pipe module installed inside the pipe housing to provide the performance test fluid to each of the plurality of single spoke type acceleration tubes; And
A support module connected to the pipe housing to support the plurality of single spoke type acceleration tubes and the pipe modules;
/ RTI >
Wherein the vacuum pump is connected to each of the plurality of single spoke type acceleration tubes and a tuner for preventing elastic deformation caused by external pressure is provided on an outer surface of each of the plurality of single spoke type acceleration tubes,
The support module
A support frame surrounding the plurality of single spoke type acceleration tubes; And
A support bar for connecting the support frame and the pipe housing;
/ RTI >
Wherein each of the support bars is provided with a length adjusting member for adjusting the length of the support bar in preparation for predetermined condensation due to cryogenic maintenance of the inside of the vacuum vessel. Device.

The method according to claim 1,
The pipe module
A pipeline for supplying the performance test fluid or discharging the vaporized performance test fluid to the plurality of single spoke type acceleration tubes; And
A reservoir installed in the pipeline for replenishing the introduction or discharge of the performance test fluid;
And a plurality of single-spoke accelerating tube cryostats in the middle-ion accelerator.

3. The method of claim 2,
The reservoir
A main reservoir for storing helium at a set temperature required in the process; And
And a sub reservoir for storing helium out of the set temperature,
And a heat exchanger is provided between the main reservoir and the sub reservoir to heat-exchange the temperature of the helium according to the set temperature.

The method of claim 3,
The main reservoir and the sub reservoir
Wherein at least one heater is mounted on each of the plurality of single-spoke accelerating tube cryostats.

delete

The method according to claim 1,
The performance test fluid
Liquid helium, wherein the helium is liquid helium.

The method according to claim 1,
A magnetic shield installed to surround the plurality of single spoke type acceleration tubes and the line modules to shield electromagnetic waves;
Further comprising: a plurality of single-spoke accelerating tube cryostats in the middle-ion accelerator.

The method according to claim 1,
A thermal shield installed inside the vacuum vessel for circulating a refrigerant in the vacuum vessel to activate a low temperature state inside the vacuum vessel;
Further comprising: a plurality of single-spoke accelerating tube cryostats in the middle-ion accelerator.

9. The method of claim 8,
The thermal shield
Wherein the refrigerant pipe through which the refrigerant can flow is coupled in a zigzag fashion through brackets of the same material as the thermal shield.

The method according to claim 1,
A sliding frame is provided below the plurality of single spoke type acceleration tubes,
And a sliding rail for guiding the sliding frame is installed in the inside of the vacuum vessel.

A vacuum vessel for forming a vacuum state through a vacuum pump connected to one side;
A pipe housing disposed above the vacuum vessel;
A plurality of spaced-apart inner tubes, each of which is maintained in a vacuum state, and an outer tube into which a low-temperature performance test fluid is injected, Single spoke type acceleration tube;
A pipe module installed inside the pipe housing to provide the performance test fluid to each of the plurality of single spoke type acceleration tubes;
A support module connected to the pipe housing to support the plurality of single spoke type acceleration tubes and the pipe modules; And
A moving module installed below the vacuum vessel to move and support the vacuum vessel;
/ RTI >
Wherein the vacuum pump is connected to each of the plurality of single spoke type acceleration tubes and a tuner for preventing elastic deformation caused by external pressure is provided on an outer surface of each of the plurality of single spoke type acceleration tubes,
The support module
A support frame surrounding the plurality of single spoke type acceleration tubes; And
A support bar for connecting the support frame and the pipe housing;
/ RTI >
Wherein each of the support bars is provided with a length adjusting member for adjusting the length of the support bar in preparation for predetermined condensation due to cryogenic maintenance of the inside of the vacuum vessel. Device.

12. The method of claim 11,
The mobile module
A moving frame for supporting the vacuum vessel;
A plurality of casters rotatably coupled to a lower side of the moving frame; And
A plurality of fixed plates coupled to the movable frame so as to be movable up and down to fix the movable frame to a set position;
And a plurality of single-spoke accelerating tube cryostats in the middle-ion accelerator.

13. The method of claim 12,
The mobile module
A plurality of load distribution plates coupled to a lower side of the moving frame to disperse a load applied to the moving frame;
Further comprising: a plurality of single-spoke accelerating tube cryostats in the middle-ion accelerator.