Scanning box device and electron accelerator

Abstract

The utility model discloses a scanning box device and an electron accelerator, the electron accelerator comprises an accelerating tube and a deflection coil, the scanning box device comprises a scanning chamber and a scanning box, the scanning chamber is hermetically connected with the scanning box, the scanning chamber is arranged above the scanning box, and the deflection coil is arranged in 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-metal material. According to the utility model, eddy current of the scanning box can be avoided, energy loss and heating problems are reduced, and performance and stability of equipment are improved.

Description

Technical Field

[0001] The utility model relates to a scanning box device and an electron accelerator. Background Art

[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 are able to produce high-energy particle beams that are used to study high-energy physical phenomena or perform medical radiation therapy.

[0003] In many application fields, the electron beam is deflected back and forth to form a certain shape, such as line, square, rectangle, etc., in order to expand the irradiation area and adapt to the needs of various shapes and areas of irradiated objects.

[0004] In existing electron beam scanning equipment, the scanning box generates eddy currents under the influence of the deflection coil, 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. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the scanning box of the electron beam scanning equipment is affected by the deflection coil to generate eddy currents, 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. A scanning box device and an electron accelerator are provided to avoid the generation of eddy currents, reduce energy loss and heating problems, and improve the efficiency of electron beam scanning.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] A scanning box device is used for an electron accelerator, wherein the electron accelerator includes an accelerating tube and a deflection coil. The scanning box device includes a scanning chamber and a scanning box, wherein the scanning chamber and the scanning box are sealed and connected, 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.

[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 via a flange.

[0011] Preferably, 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.

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

[0013] The utility model also provides an electron accelerator, which is characterized in that the electron accelerator comprises the scanning box device as described above.

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

[0015] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0016] The positive and progressive effects of the utility model are:

[0017] It avoids the generation of eddy currents, reduces energy loss and heating problems, and improves the performance and stability of the equipment.

[0018] Non-metallic materials are used as the main components of the inner box, which have good insulation and heat resistance, improving the safety and reliability of the equipment.

[0019] It is compatible with existing electron beam scanning equipment and is connected to other parts of the equipment by mechanical connection, which facilitates installation and removal.

[0020] It can be customized as needed to adapt to different models and specifications of electron beam scanning equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a scanning box device according to Embodiment 1 of the present utility model.

[0022] Figure 2 This is another structural schematic diagram of the scanning box device of Example 1 of the utility model.

[0023] Figure 3 This is a schematic structural diagram of a scanning box device according to Embodiment 2 of the present utility model. DETAILED DESCRIPTION

[0024] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0025] Example 1

[0026] In this embodiment, the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] See also Figure 1 as well as Figure 2 , this embodiment provides such an electron accelerator.

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

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

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

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

[0032] The accelerating tube 101 is disposed above the scanning room 1001 .

[0033] The deflection coil 103 is disposed outside the scanning room.

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

[0035] Specifically, the non-metallic material is quartz glass. In other embodiments, the scanning chamber may also be made of ceramic or other high-temperature resistant non-metallic materials.

[0036] The scanning box is made of quartz glass material, and the scanning chamber and the scanning box are integrally formed. In this embodiment, the scanning chamber and the scanning box are integrally formed to achieve a sealed connection.

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

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

[0039] The top of the scanning chamber is connected to the accelerating tube via 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 and high-voltage electron accelerator.

[0042] Example 2

[0043] See also Figure 3 This embodiment is basically the same as Embodiment 1, except that:

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

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

Claims

1. A scanning box device, used for an electron accelerator, wherein the electron accelerator comprises an accelerating tube and a deflection coil, characterized in that: The scanning box device includes a scanning chamber and a scanning box. The scanning chamber and the scanning box are sealed and connected. 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. The scanning chamber is made of non-metallic material.

2. The scanning box device according to claim 1, characterized in that: The non-metallic material is quartz glass or ceramic.

3. The scanning box device according to claim 2, characterized in that: The scanning box is made of quartz glass material, and the scanning chamber and the scanning box are integrally formed.

4. The scanning box device according to claim 2, characterized in that: The scanning box is made of metal material, and the scanning chamber and the scanning box are connected via a flange.

5. The scanning box device according to claim 1, characterized in that: The scanning box device further comprises a deflection coil bracket, the deflection coil bracket is arranged outside the scanning room, and the deflection coil is fixed on the deflection coil bracket.

6. The scanning box device according to claim 1, characterized in that: 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 in that: The electron accelerator comprises a scanning box device as claimed in any one of claims 1 to 6.

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