WO2017216895A1

WO2017216895A1 - Particle therapy facility

Info

Publication number: WO2017216895A1
Application number: PCT/JP2016/067757
Authority: WO
Inventors: 文恵大坪; 山田　亘; 山本　和男
Original assignee: 三菱電機株式会社
Priority date: 2016-06-15
Filing date: 2016-06-15
Publication date: 2017-12-21
Also published as: TW201742648A; TWI623336B

Abstract

This particle therapy facility has been invented to solve the problem of the inability to reduce the footprint of a particle therapy facility, and includes: an irradiation chamber in which a treatment subject is irradiated with a particle beam by a particle therapy device; a first machinery chamber that is provided above the irradiation chamber; a wall that surrounds the irradiation chamber and the first machinery chamber; a second machinery chamber that is provided outside the wall; and a passage that is provided in an opening in the wall and connects the first machinery chamber to the second machinery chamber. Thus, the footprint of the particle therapy facility can be reduced.

Description

Particle beam therapy facility

The present invention relates to a particle beam therapy facility provided with machine rooms inside and outside a shielding wall.

The particle beam treatment facility used for cancer treatment includes, for example, an apparatus room, an irradiation room, an operation room, and a machine room. A particle beam therapy system is installed in the device room. In the irradiation room, particle beam irradiation is performed on the treatment subject. In the operation room, the particle beam therapy system is operated. Of these rooms, the apparatus room and the irradiation room need to prevent secondary radiation generated from the particle beam from leaking outside. The device room and radiation treatment room are surrounded by thick shielding walls. When providing a door, a thick door having a shielding function is used.

Conventional particle beam treatment facilities are often installed in large-scale medical facilities and have a building area sufficient to accommodate the particle beam treatment facilities. However, in recent years, particle beam therapy facilities have also been introduced into small-scale medical facilities, and a reduction in exclusive area is required.

A technique for reducing the area occupied by a particle beam treatment facility by providing an imaging station corresponding to an operation room in a passage surrounded by a shielding wall is disclosed (see Patent Document 1 below).

JP 2011-72460 A Japanese Patent Laid-Open No. 2-173600

In the particle beam therapy facility, a machine room is required to install the devices necessary for the particle beam therapy system to operate. Since the machine room does not necessarily need to be surrounded by the shielding wall, it may be provided outside the shielding wall. However, it is necessary to secure an occupied space of the machine room outside the shielding wall. On the other hand, it is also conceivable to provide a machine room using an empty space inside the shielding wall as in the imaging station of Patent Document 1. However, the machine room requires a larger area than the imaging station and cannot be accommodated in a vacant space, so that the area inside the shielding wall is enlarged in order to secure the occupied space of the machine room. Therefore, there is a problem that the exclusive area of the particle beam therapy facility cannot be reduced even if the machine room is provided outside or inside the shielding wall.

The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a particle beam treatment facility with a reduced exclusive area.

The particle beam therapy facility according to the present invention includes an irradiation chamber in which a particle beam is irradiated onto a treatment target by a particle beam therapy apparatus, a first machine room provided above the irradiation chamber, an irradiation chamber, and a first machine room. , A second machine room provided outside the wall, and a passage provided in the opening of the wall and connecting the first machine room and the second machine room.

According to the present invention, the area occupied by the particle beam treatment facility can be reduced.

FIG. 2 is a plan view showing the particle beam therapy facility according to the first embodiment. Sectional drawing which shows the particle beam therapy facility which concerns on Embodiment 1. FIG. FIG. 4 is a plan view showing a particle beam therapy facility according to a second embodiment. FIG. 6 is a plan view showing a particle beam therapy facility according to a third embodiment.

Embodiments of the present invention will be described below with reference to the drawings. In the drawings to be referred to, the same or corresponding parts are denoted by the same reference numerals.
Embodiment 1 FIG.
FIG. 1 is a plan view showing a particle beam therapy facility 1 according to Embodiment 1. FIG. (A) is a plan view of the first floor, (b) is a plan view of the second floor.
FIG. 2 is a cross-sectional view showing the particle beam therapy facility 1 according to the first embodiment. FIG. 2 is a view taken along the line AB in FIG.
The particle beam treatment facility 1 includes an apparatus room 2, an irradiation room 3, a shielding wall 4,

passages

5a and 5b, and

machine rooms

6a and 6b. There is an apparatus room 2 and an irradiation room 3 on the first floor of the particle beam treatment facility 1. A particle beam irradiation device 7 is installed in the device chamber 2. Since the particle beam irradiation device 7 is a large device, the second floor portion of the device chamber 2 is atrium. The irradiation room 3 is a room where the patient is treated. In the irradiation chamber 3, the particle beam emitted from the particle beam irradiation device 7 is irradiated to the treatment subject.

The shielding wall 4 is a wall that shields secondary radiation generated by the particle beam from leaking outside. The shielding wall 4 is provided so as to surround the apparatus chamber 2, the irradiation chamber 3, and the machine chamber 6a. The shielding wall 4 can suppress the dose outside the shielding wall 4 to a threshold value or less.
The passage 5 a is a passage that is provided at the opening of the shielding wall 4 on the first floor and connects the irradiation chamber 3 inside the shielding wall 4 and the outside of the shielding wall 4. For example, as shown in International Publication WO 2014/167973, the passage 5a is an oblique passage with respect to the shielding wall 4, whereby the dose outside the shielding wall 4 can be suppressed to a threshold value or less.

On the second floor of the particle beam treatment facility 1, there are machine rooms 6a-b. The machine room 6 a is provided above the device room 3 inside the shielding wall 4. The machine room 6 b is provided outside the shielding wall 4. The machine room 6b is provided adjacent to the machine room 6a with the shielding wall 4 interposed therebetween. In the

machine rooms

6a and 6b, for example, a power source for the particle beam irradiation apparatus 7 is installed. The passage 5b is a passage that is provided in the opening of the shielding wall 4 on the second floor and connects the machine room 6a and the machine room 6b. Similarly to the passage 5a, the passage 5b is formed as a passage oblique to the shielding wall 4 as shown in, for example, International Publication WO 2014/167973, so that the dose outside the shielding wall 4 can be suppressed to a threshold value or less. .
Further, since the machine room 6a and the machine room 6b are provided so as to be adjacent to each other with the shielding wall 4 interposed therebetween, the path 5b can be shortened, so that a person concerned with treatment can connect the machine room 6a and the machine room 6b. Easy to go back and forth. Also, the cost can be reduced.

The irradiation room 3 only needs to have a space on the first floor, and it is not necessary to blow through the second floor like the device room 2. That is, the space in which the machine room 6a is provided is a space that has not been conventionally used. In the present invention, the machine room is divided, the machine room 6 a is arranged in an empty space inside the shielding wall 4, and the machine room 6 b is arranged outside the shielding wall 4. However, if there is a shielding wall 4 between the machine room 6a and the machine room 6b, it will be impossible for the person concerned to go to and from the treatment room. Was provided. Therefore, the flow line between the machine room 6a arranged inside the shielding wall 4 and the machine room 6b arranged outside the shielding wall 4 is secured, and the usability of the medical staff is not impaired.

Further, the shielding wall 4 is made of a heavy material such as concrete, iron, or lead. If the shielding wall 4 is present on the second floor portion above the passage 5a, it is necessary to reinforce the beam supporting the second floor portion, which increases the cost. If the passage 5b is disposed in the second floor portion above the passage 5a, it is not necessary to reinforce the beam, and the cost does not increase. Providing the

passages

5a and 5b on the same cross section of the shielding wall 4 is economical because the building structure is simplified.

In the present embodiment, concrete, iron, and lead are exemplified as the material of the shielding wall 4, but other materials may be used as long as they are suitable for preventing leakage of radiation.
Further, in the present embodiment, the particle beam treatment facility 1 is composed of the first floor and the second floor. For example, the third floor and the fourth floor, the first basement and the first floor, or the first and second floors. It may be configured as a floor. Any arrangement may be employed as long as the machine room 6a is provided above the irradiation chamber 3 in a space that has not been used in the past.
In this embodiment, no door is provided in the

passages

5a and 5b, but a door may be provided. Furthermore, if the door has a function of shielding radiation, the

passages

5a and 5b may not be provided obliquely with respect to the shielding wall 4.

As described above, in the present embodiment, the irradiation room 3 in which the particle beam treatment apparatus 7 irradiates the treatment target with the particle beam, the machine room 6a provided above the irradiation room 3, the irradiation room 3 and the machine A shielding wall 4 surrounding the chamber 6a, a machine room 6b provided outside the shielding wall 4, and a passage 5b provided in the opening of the shielding wall 4 and connecting the machine room 6a and the machine room 6b. Therefore, the exclusive area of the particle beam therapy facility 1 can be reduced. In addition, the passage connecting the machine room 6a and the machine room 6b allows a person concerned with treatment to easily go back and forth between the machine room 6a and the machine room 6b without impairing usability.
Further, by providing doors having a shielding function in the

passages

5a and 5b, it is not necessary to design the

passages

5a and 5b in consideration of shielding properties, and the cost can be reduced.

Embodiment 2. FIG.
In the first embodiment described above, the passage 5b is provided in the second floor portion immediately above the passage 5a. However, in the present embodiment, the embodiment in which the passage 5b is provided in a different place on the second floor portion. Indicates.

FIG. 3 is a plan view showing the particle beam therapy facility 1 according to the second embodiment. (A) is a plan view of the first floor, (b) is a plan view of the second floor. The difference from FIG. 1 of the first embodiment is that the passage 5a is provided obliquely downward and right from the irradiation chamber 3 in FIG. 3 and the wall 8 of the building that houses the particle beam treatment facility 1 is described. It is that. In FIG. 3, the building wall 8 is in contact with the upper part of the shielding wall 4, and the passage 5 a may be located away from the wall 8 in the direction of FIG. Further, depending on the arrangement of other rooms and corridors outside the shielding wall 4, it may be easier to use the passage 5a in the direction shown in FIG. The passage 5b is not directly above the passage 5a, but is in a different position.

In this embodiment, the wall 8 of the building is in contact with the upper part of the shielding wall 4 in FIG. 3, but the position of the wall 8 is an example and is not limited to the position in FIG.

As described above, since the passage 5b is provided at a place different from the position directly above the passage 5a, the passage 5a can be arranged according to convenience. For example, the passage 5a can be arranged in consideration of the arrangement of other rooms and corridors outside the shielding wall 4.

Embodiment 3 FIG.
In the first embodiment described above, the passage 5b is provided in the shielding wall 4 between the machine room 6a and the machine room 6b. In the present embodiment, the passage 5b is shielded from the machine room 6a. An embodiment is shown through a passage inside the wall 4 and a passage outside the shielding wall 4.
FIG. 4 is a plan view showing the particle beam therapy facility 1 according to the third embodiment. (A) is a plan view of the first floor, (b) is a plan view of the second floor. The difference of the first embodiment from FIG. 1 is the shapes of the shielding wall 4 and the

passages

5a and 5b. The shielding wall 4 is also provided on both sides of the

passages

5 c and 5 e inside the shielding wall 4. The passage 5 a is a passage connecting the device chamber 3 and the outside of the shielding wall 4 through the passage 5 c inside the shielding wall 4. The passage 5b is a passage that connects the machine room 6a and the machine room 6b through the passage 5d inside the shielding wall 4, the opening of the shielding wall 4, and the passage 5e outside the shielding wall 4.

In this embodiment, no door is provided in the

passages

5a and 5b, but a door may be provided.
Further, the shape of the shielding wall 4 on the first floor may be different from the shape of the second floor, but there is a case where it is necessary to reinforce the beam supporting the second floor portion.

As described above, in the present embodiment, the passage 5b connects the machine room 6a and the machine room 6b through the passage 5c inside the shielding wall 4 and the passage 5d outside the shielding wall 4, so that it is easy to use. Correspondingly, the passage 5b can be arranged. For example, the passage 5b can be arranged in a convenient place in consideration of the arrangement of other rooms outside the shielding wall 4 and the hallway.

DESCRIPTION OF SYMBOLS 1 Particle beam treatment facility 2 Device room 3 Irradiation room 4 Shielding wall 5a-e Passage 6a-b Machine room 7 Particle beam treatment apparatus 8 Building wall

Claims

An irradiation chamber in which a particle beam is irradiated to a treatment target by a particle beam therapy apparatus;
A first machine room provided above the irradiation room;
A wall surrounding the irradiation chamber and the first machine chamber;
A second machine room provided outside the wall;
A first passage that is provided in the opening of the wall and connects the first machine chamber and the second machine chamber;
A particle beam therapy facility comprising:
The particle beam therapy facility according to claim 1, wherein the first passage is provided obliquely with respect to the wall.
The particle beam therapy facility according to claim 1 or 2, wherein a door is provided in the first passage.
The particle beam therapy facility according to any one of claims 1 to 3, further comprising a second passage that is provided in another opening of the wall and connects the irradiation chamber and the outside of the wall. .
The particle beam therapy facility according to claim 4, wherein the first passage is provided above the second passage.
The said 1st channel | path connects the said 1st machine room and the said 2nd machine room through the inside of the said wall, and the exterior of the said wall, The any one of Claim 1, 3 to 5 characterized by the above-mentioned. The particle beam therapy facility according to claim 1.