CN113425865A

CN113425865A - Irradiation sterilization system and transmission device for irradiation sterilization system

Info

Publication number: CN113425865A
Application number: CN202110786840.5A
Authority: CN
Inventors: 吕约澎; 崔爱军; 张立锋; 韩广文; 秦成; 毕振亮; 闫洁
Original assignee: China Institute of Atomic of Energy
Current assignee: China Institute of Atomic of Energy
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-09-24
Anticipated expiration: 2041-07-12
Also published as: CN113425865B

Abstract

The embodiment of the invention discloses a transmission device for an irradiation sterilization system, which comprises: a conveying channel (110) with an inlet and an outlet, wherein the conveying channel is in a shape of a Chinese character 'ji', and the conveying channel (110) conveys the irradiated objects (200) in a single direction from the inlet (111) to the outlet (112); the direction changing part (120) is arranged on the transmission channel (110) and is used for changing the advancing direction of the irradiated object (200); wherein the conveying channel (110) is provided with a first irradiation region (113) and a second irradiation region (114), the first irradiation region (113) and the second irradiation region (114) are respectively arranged at the upstream and the downstream of the direction changing part (120), and the first irradiation region (113) and the second irradiation region (114) are used for irradiating different surfaces of the irradiated object (200). This embodiment adopts the transmission channel and two irradiation regions of ring-opening, does not have flip structure, and the irradiation object once passes through transmission channel can realize that six all irradiation is disinfected.

Description

Irradiation sterilization system and transmission device for irradiation sterilization system

Technical Field

The embodiment of the invention relates to the technical field of irradiation treatment, in particular to an irradiation sterilization system and a transmission device for the irradiation sterilization system.

Background

With the economic globalization, the cross-border spread of harmful organisms is a problem to be solved by the goods in and out.

At present, most of sterilization modes of imported cold chain goods adopt chemical methods, the chemical sterilization methods have certain limitations, only viruses remained on the outer surface of a goods packaging box can be effectively killed, but the viruses on the surfaces of the goods and the inner surface of the packaging box are difficult to kill.

Disclosure of Invention

According to one aspect of the present invention, there is provided a delivery device for a radiation sterilisation system, comprising: the transmission channel is provided with an inlet and an outlet, the transmission channel is in a shape of a Chinese character 'ji', and the transmission channel transmits the irradiated objects in a one-way mode in the direction from the inlet to the outlet; the direction changing part is arranged on the transmission channel and is used for changing the advancing direction of the irradiated object; the conveying channel is provided with a first irradiation area and a second irradiation area, the first irradiation area and the second irradiation area are respectively arranged at the upstream and the downstream of the turning part, and the first irradiation area and the second irradiation area are used for irradiating different surfaces of the irradiated objects.

According to another aspect of the present invention, there is provided a radiation sterilization system, comprising: the transfer device according to any of the preceding embodiments; and the first accelerator and the second accelerator are respectively arranged in the first irradiation area and the second irradiation area and are used for irradiating different surfaces of the irradiated object from different directions.

Drawings

Other objects and advantages of the present invention will become apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, and may help to provide a full understanding of the present invention.

FIG. 1 is a schematic diagram of a transfer device for a radiation sterilization system, according to one embodiment of the present invention;

FIG. 2 is a schematic diagram of a radiation sterilization system according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of an accelerator according to one embodiment of the invention.

It is noted that the drawings are not necessarily to scale and are merely illustrative in nature and not intended to obscure the reader.

Description of reference numerals:

100. a transmission device; 110. a transmission channel; 111. an inlet; 112. an outlet; 113. a first irradiation zone; 114. a second irradiation zone; 115. a first transmission section; 116. a second transmission segment; 120. a direction changing part;

200. an irradiated object; 310. a first accelerator; 320. a second accelerator; 311. a scanning magnet; 312. collecting the magnet; 313. an electron beam trajectory;

400. a shielding device; 410. a first opening; 420. a second opening; 500. a power source; 600. a control device; 700. a non-irradiated object storage area; 800. an irradiated material storage area.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described below in detail and completely with reference to the accompanying drawings of the embodiments of the present application. It should be apparent that the described embodiment is one embodiment of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.

It is to be noted that, unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. If the description "first", "second", etc. is referred to throughout, the description of "first", "second", etc. is used only for distinguishing similar objects, and is not to be construed as indicating or implying a relative importance, order or number of technical features indicated, it being understood that the data described in "first", "second", etc. may be interchanged where appropriate. If "and/or" is presented throughout, it is meant to include three juxtapositions, exemplified by "A and/or B" and including either scheme A, or scheme B, or schemes in which both A and B are satisfied. Furthermore, spatially relative terms, such as "above," "below," "top," "bottom," and the like, may be used herein for ease of description to describe one element or feature's spatial relationship to another element or feature as illustrated in the figures, and should be understood to encompass different orientations in use or operation in addition to the orientation depicted in the figures.

In order to block the way that the virus is transmitted along with the cold chain way, the irradiation sterilization system can be used for carrying out irradiation sterilization on the cold chain packing box, the characteristics of strong penetrability, uniform and thorough sterilization and high processing speed of electron beam sterilization are utilized, the sealed and packed articles can be processed, the operation is simple, and no chemical agent is left. The radiation sterilization system and the transfer device 100 for a radiation sterilization system according to the present invention are described below with reference to specific embodiments. The irradiated object 200 may be a cold chain packing box, or may be other objects requiring irradiation.

Fig. 1 shows a schematic structural diagram of a transport device for a radiation sterilization system according to an embodiment of the present invention. As shown in fig. 1, the transmission device 100 includes a transmission passage 110 and a direction changing portion 120. The conveying channel 110 is provided with an inlet 111 and an outlet 112, the inlet 111 is used for placing the irradiated objects 200 needing irradiation sterilization into the conveying channel 110, and the outlet 112 is used for outputting the irradiated objects 200 after irradiation sterilization from the conveying channel 110. The transfer passage 110 is in a shape of a Chinese character 'ji', and the transfer passage 110 transfers the irradiation object 200 unidirectionally in a direction from the inlet 111 to the outlet 112. In the embodiment, the open-loop transmission channel 110 is adopted, and the inlet and the outlet are arranged at different directions, so that the irradiated object 200 passes through the transmission channel 110 in a single direction, and the irradiated object 200 subjected to irradiation sterilization is prevented from secondary pollution when the inlet and the outlet are arranged at the same direction.

As shown in fig. 1, a direction changing portion 120 is disposed on the conveying passage 110, and is used for changing the advancing direction of the irradiation object 200. In some embodiments, the direction changing portion 120 may be a universal driving wheel, and the universal driving wheel may drive the irradiation object 200 to move along any direction different from the original conveying direction. In this embodiment, the universal driving wheel can drive the irradiation object 200 to move transversely, so that the irradiation object 200 can move forward in a direction perpendicular to the original conveying direction, thereby changing the forward direction of the irradiation object 200.

As shown in fig. 1, the direction changing portion 120 may be disposed at a right angle in the middle of the "hex" shaped transmission channel 110, and the direction changing portion 120 may move the irradiation object 200 transversely to the downstream direction, so that the irradiation object directly moves forward in a direction perpendicular to the original transmission direction, without turning the irradiation object 200 along with the right-angled bend of the transmission channel 110.

In other embodiments, the direction changing portion 120 may also be other components capable of changing the advancing direction of the irradiation object 200, such as a rotating member configured to rotate the irradiation object 200 by 90 °, rotate the irradiation object 200 by 90 ° when turning along a right-angled bend of the transmission channel 110, and make the irradiation object directly advance in a direction perpendicular to the original transmission direction, so that the side surface perpendicular to the original transmission direction becomes parallel to the transmission direction.

In this embodiment, the conveying passage 110 has a first irradiation region 113 and a second irradiation region 114, the first irradiation region 113 and the second irradiation region 114 are respectively disposed upstream and downstream of the direction changing portion 120, and the first irradiation region 113 and the second irradiation region 114 are used for irradiating different surfaces of the irradiation object 200. Alternatively, the second irradiation region 114 may be disposed at a central position of the transfer passage 110. Alternatively, the first irradiation region 113 and the second irradiation region 114 are arranged to irradiate the irradiation object 200 from opposite directions, and the electron beams in the first irradiation region 113 and the second irradiation region 114 may irradiate the irradiation object 200 from opposite directions to irradiate different surfaces of the irradiation object 200.

Alternatively, the irradiation object 200 may be a hexahedron, and the electron beam in the first irradiation region 113 may irradiate a top surface and two opposite side surfaces of the irradiation object 200 from top to bottom, wherein the two opposite side surfaces are substantially parallel to the transport direction of the transport passage 110. After irradiation in the first irradiation zone 113, the object 200 passes through the direction-changing portion 120, and the direction-changing portion 120 moves the object 200 laterally so that the non-irradiated side surface thereof is substantially parallel to the transport direction. The electron beams in the second irradiation region 114 may irradiate the bottom surface and the opposite other two side surfaces of the irradiation object 200 from the bottom to the top, wherein the opposite other two side surfaces are the side surfaces which are not irradiated after passing through the first irradiation region 113 and are also substantially parallel to the transmission direction of the transmission channel 110.

In some embodiments, a portion of the transmission channel 110 located in the second irradiation region 114 is provided with a transmission slit, so that the electron beam passes through the transmission slit, thereby irradiating the irradiation object 200 from bottom to top.

By adopting the transmission device of the embodiment, the whole open-loop transmission channel is in a Chinese character 'ji' shape, the irradiated object which is not irradiated enters from the inlet and reaches the first irradiation area after being transmitted for a certain distance, and the electron beams in the first irradiation area perform irradiation sterilization on three surfaces of the irradiated object. Then, the advancing direction of the irradiated object is changed through the direction changing part, the irradiated object is continuously transmitted to the second irradiation area, the electron beams in the second irradiation area perform irradiation sterilization on the other three surfaces of the irradiated object, so that irradiation of all six surfaces of the irradiated object is completed, and finally the irradiated object is transmitted to the outlet through the transmission channel and is conveyed out of the transmission channel. This embodiment adopts the transmission channel and two irradiation regions of an open-loop, does not have flip structure, and the irradiation object once passes through transmission channel can realize that six all irradiation is disinfected.

As shown in fig. 1, the transmission channel 110 includes a first transmission segment 115 and a second transmission segment 116. The first conveying section 115 is connected to the direction changing portion 120, the inlet 111 is disposed on the first conveying section, and the first irradiation region 113 is located on the first conveying section 115. A second transfer section 116 is connected to the redirecting portion 120, the outlet 112 is disposed in the second transfer section 116, and the second irradiation zone 114 is located on the second transfer section 116. Specifically, the head end of the second transmission segment 116 is perpendicular to the tail end of the first transmission segment 115, and the direction changing portion 120 connects the first transmission segment 115 and the second transmission segment 116 to form a continuous transmission path.

Optionally, the first irradiation region 113 and the second irradiation region 114 are located near the turning portion 120, after the irradiation sterilization is performed by the first irradiation region 113, the object 200 to be irradiated changes the advancing direction, and then enters the second irradiation region 114 to perform irradiation sterilization on another surfaces, so that the first irradiation region 113 and the second irradiation region 114 are located in the middle of the conveying channel 110, and the first irradiation region 113 and the second irradiation region 114 are located far away from the inlet 111 and the outlet 112, thereby preventing the risk caused by the irradiation of the electron beams to the outside.

In some embodiments, the first transport section 115 includes a plurality of 90 ° and/or 180 ° bends between the inlet 111 and the first irradiation zone 113 for extending the distance between the first irradiation zone 113 and the inlet 111. Specifically, as shown in fig. 1, the first conveying section 115 may have an inverted "arch" shape, and the irradiation target 200 sequentially passes through two 180 ° bends and two 90 ° bends and then enters the first irradiation region 113 for irradiation sterilization.

In some embodiments, the second transport section 116 may also include a plurality of 90 ° and/or 180 ° bends between the second irradiation zone 114 and the outlet 112 for extending the distance between the second irradiation zone 114 and the outlet 112. Specifically, as shown in fig. 1, the second conveying section 116 may have a concave shape with one side opening, and the irradiation target 200 may pass through one 90 ° turn, two 180 ° turns and one 90 ° turn after being irradiated and sterilized in the second irradiation region 114, reach the outlet 112, and finally be output from the outlet 112. Wherein, as shown in fig. 1, the direction of the outlet 112 may be parallel to the direction of the inlet 111. In other embodiments, the direction of the outlet 112 may also be perpendicular to the direction of the inlet 111.

This embodiment adopts the transmission path and two irradiation regions of an open-loop, does not have flip structure, and the irradiation thing once passes through transmission path and can realize that whole six faces sterilize to transmission path's entry and export are located two different positions, prevent that entry and export from setting up in two different positions through irradiation thing 200 that sterilize when same position from taking place secondary pollution by irradiation thing, provide the assurance for preventing that secondary pollution from appearing in the cold chain goods.

Fig. 2 shows a schematic structural diagram of a radiation sterilization system according to an embodiment of the present invention. As shown in fig. 2, the radiation sterilization system in the present embodiment can perform radiation sterilization on the irradiation object 200.

The radiation sterilization system includes a transport device 100, a first accelerator 310, and a second accelerator 320. The transmission device 100 may be the transmission device described in any of the above embodiments, and the structure and the operation principle thereof are the same as those of the transmission device in the above embodiments, which are not described herein again.

The first accelerator 310 and the second accelerator 320 are respectively disposed in the first irradiation region 113 and the second irradiation region 114, and are configured to irradiate different surfaces of the irradiation object 200 from different directions, so as to achieve irradiation sterilization of different surfaces after the irradiation object 200 passes through the transmission channel 110 once.

Specifically, the first accelerator 310 is disposed above the first irradiation region 113, and is configured to generate an electron beam irradiating the irradiation object 200 from top to bottom. The second accelerator 320 is disposed below the second irradiation region 114, and is used for generating a bottom-up electron beam for irradiating the irradiation object 200. With the radiation sterilization system of the present embodiment, at least the radiation sterilization of the top surface and the bottom surface of the irradiation object 200 can be realized by the first accelerator and the second accelerator.

FIG. 3 shows a schematic diagram of an accelerator according to an embodiment of the invention. As shown in fig. 3, the first accelerator 310 and/or the second accelerator 320 includes an acceleration tube (not shown) and a scanning magnet 311. The accelerating tube is used for leading out the electron beam perpendicular to the transportation channel 110, and the scanning magnet 311 is connected below the accelerating tube and used for deflecting the radiation direction of the electron beam so that the electron beam scans the irradiated object 200 in a fan shape. Specifically, the angle between the electron beam flow and the top surface of the irradiated object 200 gradually increases to 90 ° from the edge to the center after the electron beam passes through the scanning magnet.

As shown in fig. 3, the first accelerator 310 and/or the second accelerator 320 further includes a collecting magnet 312 disposed below the scanning magnet 311, and the collecting magnet 312 is used for deflecting the radiation direction of the electron beam with respect to the scanning magnet 311 in a reverse direction, so that the electron beam is collected in the irradiation object 200. The electron beam deflected by the scanning magnet 311 reaches the furling magnet 312, the furling magnet 312 deflects the electron beam reversely, the electron beam trajectory 313 is as shown in fig. 3, after passing through the furling magnet 312, the deflection angle of the electron beam along the direction from the edge to the center is gradually reduced, so as to play a focusing role, and the irradiated object 200 is placed on the focus of the electron beam trajectory 313, so that the irradiated object 200 can be scanned on three sides. Wherein the electron beam generated by the first accelerator 310 irradiates the top surface and two opposite side surfaces of the irradiated object 200, the two opposite side surfaces are substantially parallel to the transport direction of the transport channel 110, and optionally, the two opposite side surfaces may also be substantially perpendicular to the transport direction of the transport channel 110; the electron beam generated by the second accelerator 320 irradiates the bottom surface and the other two opposite side surfaces of the irradiation object 200.

The second accelerator 320 is disposed upside down with respect to the first accelerator 310 so as to generate a bottom-up electron beam.

With the accelerator of the present embodiment, three surfaces of the irradiation object 200 can be irradiated and sterilized. Before irradiating the goods, the electron beams can receive the beam expanding effect of the scanning magnet and the furling effect of the furling magnet, and the electron beam lines after beam expanding and furling can finish irradiation sterilization on three sides of the goods at one time. The first accelerator and the second accelerator respectively irradiate three surfaces of the irradiated object 200 from different directions, so that the irradiated object 200 can realize irradiation sterilization of all six surfaces once through the transmission channel 110, and the irradiation sterilization treatment of cold chain cargos is efficiently realized.

In some embodiments, the direction changing part 120 of the conveying device 100 is used to rotate the irradiation object 200 by 90 ° or move the irradiation object 200 perpendicular to the original conveying direction, so that the non-irradiated surface of the irradiation object 200 is parallel to the conveying direction of the conveying channel 110. When the irradiation object 200 reaches the second irradiation region 114, the irradiation sterilization of the other three surfaces of the irradiation object 200 can be realized without turning the structure.

As shown in fig. 2, the radiation sterilization system further includes a shielding device 400, the transmission device 100 is installed in the shielding device 400, and the shielding device 400 is used for shielding the electron beams generated by the first accelerator 310 and the second accelerator 320, so as to prevent the electron beams from being radiated outside the system and causing radiation hazard.

Specifically, the shielding device 400 includes a first opening 410 and a second opening 420, the inlet 111 of the transmission channel 110 is disposed at the first opening 410, and the outlet 112 of the transmission channel 110 is disposed at the second opening 420. The irradiation object 200 enters the shielding device 400 from the first opening 410 through the entrance 111 of the transmission passage 110, and is output to the outside of the shielding device 400 from the second opening 420.

In some embodiments, the shielding device 400 is rectangular in shape, and the transmission channel 110 is mounted inside the shielding device 400. The first opening 410 and the second opening 420 may be disposed at different orientations of the shielding device 400 along a diagonal of the shielding device 400. As shown in fig. 2, first opening 410 may be externally provided with unirradiated object storage area 700, and second opening 420 may be externally provided with irradiated object storage area 800. In the embodiment, the unirradiated objects and the irradiated objects are respectively arranged at different directions of the shielding device 400, so that confusion of the unirradiated objects and the irradiated objects can be prevented, and guarantee is provided for preventing secondary pollution of cold chain goods.

As shown in fig. 2, the shielding apparatus 400 includes a plurality of shielding bodies disposed at both sides of the transmission channel 110 along the transmission channel 110. The electron beams generated by the first accelerator 310 and the second accelerator 320 can reach the outside of the shielding device after being attenuated by multiple reflections of a plurality of shielding bodies, so that the radiation dose at two openings of the shielding device is reduced, and the radiation safety of operators is ensured.

As shown in fig. 2, the radiation sterilization system further includes a power source 500 connected to the first accelerator 310 and the second accelerator 320 for generating microwave power and providing the microwave power to the first accelerator 310 and the second accelerator 320. A power source 500 is also disposed within the shielding apparatus 400. For example, the power source 500 may be embedded within a shield to prevent the electron beam from affecting it. Specifically, the power source 500 may include a pulse transformer.

In some embodiments, the radiation sterilization system may further comprise a control device 600 for controlling at least one of the transport device 100, the first accelerator 310, the second accelerator 320, and the power source 500. For example, the control device 600 may control the transmission channel 110 to start transmission, and/or the control device 600 may control the first accelerator 310 and the second accelerator 320 to start extracting the electron beam current, and the like. The control device 600 is also disposed within the shielding device 400. For example, the control device 600 may be embedded within a shield to prevent electron beam radiation from affecting its normal operation.

It should also be noted that, in the case of the embodiments of the present invention, features of the embodiments and examples may be combined with each other to obtain a new embodiment without conflict.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and the scope of the present invention is subject to the scope of the claims.

Claims

1. A transfer device for a radiation sterilization system, comprising:

a conveying channel (110) with an inlet (111) and an outlet (112), the conveying channel is in a shape of Chinese character 'ji', and the conveying channel (110) conveys the irradiated objects (200) in a single direction from the inlet (111) to the outlet (112);

the direction changing part (120) is arranged on the transmission channel (110) and is used for changing the advancing direction of the irradiated object (200);

wherein the conveying channel (110) is provided with a first irradiation region (113) and a second irradiation region (114), the first irradiation region (113) and the second irradiation region (114) are respectively arranged at the upstream and the downstream of the direction changing part (120), and the first irradiation region (113) and the second irradiation region (114) are used for irradiating different surfaces of the irradiated object (200).

2. The transmission device according to claim 1, characterized in that said deviator (120) is arranged at a right angle in the middle of said "hex" -shaped transmission channel (110).

3. Transmission apparatus according to claim 2, wherein said transmission channel (110) comprises:

a first transport section (115) connected to the redirecting portion (120), the inlet (111) being disposed on the first transport section (115), the first irradiation zone (113) being located on the first transport section (115);

a second transport section (116) coupled to the redirecting portion (120), the outlet (112) disposed on the second transport section (116), and the second irradiation zone (114) disposed on the second transport section (116).

4. A conveyor as claimed in claim 3, wherein said first conveying section (115) comprises a plurality of 90 ° and/or 180 ° bends between said inlet (111) and said first irradiation zone (113) for extending the distance between said first irradiation zone (113) and said inlet (111).

5. The transfer device according to claim 3 or 4, wherein the second transfer section (116) comprises a plurality of 90 ° and/or 180 ° bends between the second irradiation zone (114) and the outlet (112) for extending the distance between the second irradiation zone (114) and the outlet (112).

6. The transfer device according to claim 1, wherein the first irradiation zone (113) and the second irradiation zone (114) are arranged to irradiate the irradiated object (200) from opposite directions.

7. The transfer device according to claim 6, wherein a portion of the transfer passage (110) located in the second irradiation zone (114) is provided with a transmission slit for irradiating the irradiation object (200) from bottom to top.

8. The transfer device according to claim 1, wherein the direction-changing portion (120) is configured for rotating the irradiation object (200) by 90 °.

9. An irradiation sterilization system, comprising:

the transmission apparatus (100) of any of claims 1-8;

a first accelerator (310) and a second accelerator (320) respectively arranged in the first irradiation region (113) and the second irradiation region (114) for irradiating different surfaces of the irradiation object (200) from different directions.

10. The system of claim 9,

the first accelerator (310) is arranged above the first irradiation region (113) and is used for generating electron beams irradiating the irradiated objects (200) from top to bottom;

the second accelerator (320) is disposed below the second irradiation region (114) and is used for generating a bottom-up electron beam for irradiating the irradiated object (200).

11. The system of claim 10, wherein the first accelerator (310) and/or the second accelerator (320) comprises:

an acceleration tube for extracting an electron beam perpendicular to the transport channel (110);

and the scanning magnet (311) is connected below the accelerating tube and used for deflecting the radiation direction of the electron beam so that the electron beam scans the irradiated object (200) in a fan shape.

12. The system of claim 11, wherein the first accelerator (310) and/or the second accelerator (320) further comprises:

a furling magnet (312) arranged below the scanning magnet (311), wherein the furling magnet (312) is used for deflecting the radiation direction of the electron beam relative to the scanning magnet (311) in a reverse direction so as to furl the electron beam on the irradiated object (200);

wherein the electron beam generated by the first accelerator (310) irradiates the top surface and two opposite side surfaces of the irradiated object (200);

the electron beam generated by the second accelerator (320) irradiates the bottom surface and the other two opposite side surfaces of the irradiation object (200).

13. The system as claimed in claim 12, characterized in that the redirecting part (120) of the transport device (100) is adapted to rotate the irradiated object (200) by 90 ° so that the non-irradiated side of the irradiated object (200) is parallel to the transport direction of the transport channel (110).

14. The system of claim 9, further comprising:

a shielding device (400), the transmission device (100) being mounted within the shielding device (400).

15. The system of claim 14, wherein the shielding device (400) comprises a first opening (410) and a second opening (420);

an inlet of the transfer channel (110) is arranged at the first opening (410) and an outlet (112) of the transfer channel (110) is arranged at the second opening (420).

16. The system of claim 14, wherein the shielding means (400) comprises a plurality of shields arranged along the transmission channel (110) on both sides of the transmission channel (110).

17. The system of claim 9, further comprising:

a power source (500) connected to the first accelerator (310) and the second accelerator (320) for generating microwave power and providing it to the first accelerator (310) and the second accelerator (320).

18. The system of claim 9, further comprising:

control means (600) for controlling at least one of the transmission means (100), the first accelerator (310), the second accelerator (320) and the power source (500).