Scanning box device and electron accelerator

Abstract

Disclosed in the present invention are a scanning box device and an electron accelerator, the electron accelerator comprising an accelerating tube and a deflection coil; the scanning box device comprising a scanning chamber and a scanning box, wherein the scanning chamber is sealingly connected to the scanning box; the scanning chamber is arranged above the scanning box; the accelerating tube is arranged above the scanning chamber; the deflection coil is arranged on the outer side of the scanning chamber; and the scanning chamber is made of a non-metallic material. The present invention can prevent the generation of eddy currents in the scanning box, thus reducing the problems of energy loss and heat generation, improving the performance and stability of the apparatus.

Description

Scanning box device and electron accelerator TECHNICAL FIELD

[0001] The present application relates to a scanning box device and an electron accelerator. BACKGROUND

[0002] An electron accelerator is a device that accelerates charged particles (such as electrons) using electric or magnetic fields. They are widely used in medical, agricultural, industrial, and environmental research fields, including particle physics, nuclear physics, and materials science. Electron accelerators can work in different ways, including linear accelerators and circular accelerators. By continuously accelerating particles, electron accelerators can produce high-energy particle beams for studying high-energy physical phenomena or for medical radiation therapy.

[0003] In many application fields, the electron beam is reciprocally deflected to form a certain shape, such as a line, a square, a rectangle, etc., to expand the irradiation area, thereby adapting to the shape and area of various irradiated objects.

[0004] In existing electron beam scanning equipment, the scanning box is affected by the deflection coil to generate eddy current, which not only causes the metal inner box to heat up, but also causes a large amount of energy loss, affecting the performance and stability of the equipment. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the defects in the prior art that the scanning box of the electron beam scanning equipment is affected by the deflection coil to generate eddy current, which not only causes the metal inner box to heat up, but also causes a large amount of energy loss, affecting the performance and stability of the equipment. The present application provides a scanning box device and an electron accelerator that avoids the generation of eddy current, reduces energy loss and heating problems, and improves the scanning efficiency of the electron beam.

[0006] The present application solves the above technical problems by the following technical solutions:

[0007] A scanning box device for an electron accelerator, the electron accelerator comprising an acceleration tube and a deflection coil, characterized in that the scanning box device comprises a scanning chamber and a scanning box, the scanning chamber and the scanning box are sealingly connected, the scanning chamber is arranged above the scanning box, the acceleration tube is arranged above the scanning chamber, the deflection coil is arranged outside the scanning chamber, and the scanning chamber is made of a non-metallic material.

[0008] Preferably, the non-metallic material is quartz glass or ceramic.

[0009] Preferably, the scanning box is made of quartz glass material, and the scanning chamber and the scanning box are integrally formed.

[0010] Preferably, the scanning box is made of metal material, and the scanning chamber and the scanning box are connected by flanges.

[0011] Preferably, the scanning box device further comprises a deflection coil bracket, which is arranged outside the scanning chamber, and the deflection coil is fixed on the deflection coil bracket.

[0012] Preferably, the bottom of the scanning box is provided with a flange, and the flange of the bottom of the scanning box clamps a titanium film.

[0013] The present application also provides an electron accelerator, which comprises the scanning box device as described above.

[0014] Preferably, the electron accelerator is a high-frequency high-voltage electron accelerator.

[0015] On the basis of common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily, thereby obtaining various preferred examples of the present application.

[0016] The positive progress effect of the present application is that:

[0017] The generation of eddy current is avoided, the energy loss and heating problem are reduced, and the performance and stability of the device are improved.

[0018] The non-metallic material is used as the main material of the inner box, which has good insulation and heat resistance, and improves the safety and reliability of the device.

[0019] The present application is compatible with the existing electron beam scanning device, and is connected with other parts of the device through mechanical connection, which is convenient for installation and disassembly.

[0020] The present application can be customized according to needs to adapt to different models and specifications of electron beam scanning devices. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a structural schematic view of the scanning box device of embodiment 1 of the present application.

[0022] Fig. 2 is another structural schematic view of the scanning box device of embodiment 1 of the present application.

[0023] Fig. 3 is a structural schematic view of the scanning box device of embodiment 2 of the present application. DETAILED DESCRIPTION

[0024] The present application will be further described below by way of examples, but the present application is not limited in the scope of the examples.

[0025] Embodiment 1

[0026] In the embodiments, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0027] Referring to FIG. 1 and FIG. 2, the present embodiment provides an electron accelerator.

[0028] The electron accelerator comprises a scanning box device 100, an acceleration tube 101 and a deflection coil 103.

[0029] The scanning box device 100 comprises a scanning chamber 1001 and a scanning box 1002.

[0030] The scanning chamber 1001 and the scanning box 1002 are sealingly connected.

[0031] The scanning chamber 1001 is arranged above the scanning box 1002.

[0032] The acceleration tube 101 is arranged above the scanning chamber 1001.

[0033] The deflection coil 103 is arranged outside the scanning chamber.

[0034] The scanning chamber is made of a non-metal material.

[0035] Specifically, the non-metal material is quartz glass, and in other embodiments, the scanning chamber can also be made of ceramic or other high-temperature-resistant non-metal materials.

[0036] The scanning box is made of quartz glass material, and the scanning chamber and the scanning box are integrally formed. In the present embodiment, the scanning chamber and the scanning box are integrally formed, thereby realizing sealing connection.

[0037] The scanning box device further comprises a deflection coil bracket 1004, which is arranged outside the scanning chamber 1001, and the deflection coil is fixed on the deflection coil bracket.

[0038] The deflection coil comprises an X-axis deflection coil and a Y-axis deflection coil.

[0039] The top of the scanning chamber is connected to the acceleration tube through a drift tube 102.

[0040] The bottom of the scanning box is provided with a flange 1003, and the flange at the bottom of the scanning box clamps a titanium film.

[0041] Specifically, the electron accelerator is a high-frequency high-voltage electron accelerator.

[0042] Embodiment 2

[0043] Referring to FIG. 3, the present embodiment is basically the same as Embodiment 1, except that:

[0044] The scanning box is made of metal material, and the scanning chamber 202 and the scanning box 203 are connected through the flange 201.

[0045] Although the specific embodiments of the present application are described above, those skilled in the art should understand that these are only illustrative, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and such changes and modifications all fall within the protection scope of the present application.

Claims

1. A scanning box device for an electron accelerator, said electron accelerator comprising an acceleration tube and a deflection coil, characterized in that, The scanning box device comprises a scanning box and a scanning chamber, the scanning chamber is sealingly connected with the scanning box, the scanning chamber is arranged above the scanning box, the accelerating tube is arranged above the scanning chamber, the deflection coil is arranged outside the scanning chamber, and the scanning chamber is made of non-metallic material.

2. The scanning cartridge device of claim 1, wherein, The non-metallic material is quartz glass or ceramic.

3. The scanning cartridge device of claim 2, wherein, The scanning box is made of quartz glass material, and the scanning chamber and the scanning box are integrally formed.

4. The scanning cartridge device of claim 2, wherein, The scanning box is made of metal material, and the scanning chamber and the scanning box are connected through flanges.

5. The scanning cartridge device of claim 1, wherein, The scanning box device further comprises a deflection coil bracket, the deflection coil bracket is arranged outside the scanning chamber, and the deflection coil is fixed on the deflection coil bracket.

6. The scanning cartridge device of claim 1, wherein, The bottom of the scanning box is provided with a flange, and the flange at the bottom of the scanning box clamps a titanium film.

7. An electron accelerator characterized by The electron accelerator comprises the scanning box device according to any one of claims 1 to 6.

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