阅读说明：本技术 一种用于环形粒子加速器中的粒子束偏转装置 (Particle beam deflection device for annular particle accelerator ) 是由 杨雅清 朱新龙 张京京 郑亚军 张晓鹰 马力祯 于 2019-07-31 设计创作，主要内容包括：本发明公开了一种用于环形粒子加速器中的粒子束偏转装置,包括阳极架,阳极架的上侧和下侧分别设置有上排单元列和下排单元列,上排单元列和下排单元列均包括若干个从左至右依次排列的夹紧张紧单元,每个夹紧张紧单元包括包括一夹紧机构和一张紧机构,夹紧机构包括固定块、凹形块和凸形块,阳极架固定部固定于阳极架上,凹形块和凸形块相互嵌套且嵌套侧面设置有嵌缝；张紧机构包括螺杆、调节螺母和蝶形弹簧。本发明公开的用于环形粒子加速器中的粒子束偏转装置,其安装简便,操作简单,能满足在切割板厚度不大于0.1mm的情况下电场均匀性的要求。(The invention discloses a particle beam deflection device for a ring-shaped particle accelerator, which comprises an anode frame, wherein the upper side and the lower side of the anode frame are respectively provided with an upper row of units and a lower row of units, the upper row of units and the lower row of units respectively comprise a plurality of clamping and tensioning units which are sequentially arranged from left to right, each clamping and tensioning unit comprises a clamping mechanism and a tensioning mechanism, the clamping mechanism comprises a fixed block, a concave block and a convex block, the fixed part of the anode frame is fixed on the anode frame, the concave block and the convex block are mutually nested, and the nested side surfaces of the concave block and the convex block are provided with caulking seams; the tensioning mechanism comprises a screw, an adjusting nut and a belleville spring. The particle beam deflection device for the annular particle accelerator is simple and convenient to install and easy to operate, and can meet the requirement of electric field uniformity under the condition that the thickness of the cutting plate is not more than 0.1 mm.)

1. A particle beam deflection device used in a ring-shaped particle accelerator comprises an anode frame (1), and is characterized in that the upper side and the lower side of the anode frame (1) are respectively provided with an upper row of units and a lower row of units, the upper row of units and the lower row of units respectively comprise a plurality of clamping and tensioning units which are sequentially arranged from left to right, each clamping and tensioning unit comprises a clamping mechanism (100) and a tensioning mechanism (200),

The clamping mechanism (100) comprises a fixed block (5), a concave block (6) and a convex block (7),

the fixing block (5) comprises an anode frame fixing part (51) and a clamping and tensioning unit fixing part (52), and the end part of the clamping and tensioning unit fixing part (52) is fixedly connected with the end part of the anode frame fixing part (51);

The anode frame fixing part (51) is fixed on the anode frame (1), the concave block (6) is fixed on the clamping and tensioning unit fixing part (52), and the concave block (6) and the convex block (7) are nested with each other;

Straining device (200) include screw rod (2) adjusting nut (3) and belleville spring (4), screw rod perforation (520) have been seted up on the tight tensioning unit fixed part (52) of clamp of fixed block (5), the recess bottom of concave block (6) is provided with at least one tensioning screw hole (61), be provided with the screw thread on the inner wall of tensioning screw hole (61), screw rod (2) pass screw rod perforation (520) of fixed block (5) and with tensioning screw hole (61) thread fixed connection, adjusting nut (3) set up in the outer end of screw rod (2).

2. The particle beam deflection arrangement for use in a toroidal particle accelerator as defined in claim 1,

The novel clamping device is characterized in that a groove is formed in the concave block (6), two clamping holes (62) are arranged in the center of the bottom of the groove of the concave block (6) side by side, two through holes (700) are formed in the protruding top of the convex block (7), internal threads are arranged on the inner wall of each through hole (700), the convex block (7) is nested in the groove of the concave block (6), and the two clamping holes (62) of the concave block (6) and the two through holes (700) of the convex block (7) are fixed through penetrating screws.

3. the particle beam deflection arrangement for use in a toroidal particle accelerator as defined in claim 2,

two sides of the bottom of the groove of the concave block (6) are provided with two tensioning screw holes (61), and the centers of the two tensioning screw holes (61) and the two clamping holes (62) at the bottom of the groove of the same concave block (6) are positioned on the same straight line.

4. The particle beam deflection arrangement for use in a toroidal particle accelerator as defined in claim 2,

the concave block (6) comprises a first inner side surface (601), a second inner side surface (602) and an inner bottom surface (600),

The first inner side surface (601) and the second inner side surface (602) are arranged at two ends of the inner bottom surface (600) to form the groove,

the included angle between the first inner side face (601) and the second inner side face (602) is 10 degrees.

5. The particle beam deflection arrangement for use in a toroidal particle accelerator as defined in claim 1,

a first outer side surface (701) and a second outer side surface (702) are respectively arranged on two sides of the convex block (7), the first outer side surface (701) and the second outer side surface (702) are mutually inclined to form the convex block (7) with a large end and a small end,

the included angle between the first outer side face (701) and the second outer side face (702) is 10 degrees.

6. the particle beam deflection arrangement for use in a toroidal particle accelerator as defined in claim 1,

the clamping and tensioning unit fixing part (52) and the anode frame fixing part (51) are integrally formed.

7. The particle beam deflection arrangement for use in a toroidal particle accelerator as defined in claim 1,

The inner side included angle between the clamping and tensioning unit fixing part (52) and the anode frame fixing part (51) is smaller than 90 degrees.

8. The particle beam deflection arrangement for use in a toroidal particle accelerator as defined in claim 1,

An anode frame fixing hole (510) is formed in the anode frame fixing portion (51), and the anode frame fixing portion (51) and the anode frame (1) are fixed through screws.

9. The particle beam deflection arrangement for use in a toroidal particle accelerator as defined in claim 1,

The tensioning mechanism (200) further comprises a disc spring (4), and the disc spring (4) penetrates through the screw rod (2) and is located between the adjusting nut (3) and the clamping and tensioning unit fixing part (52).

Technical Field

The invention relates to the technical field of annular particle accelerators, in particular to a particle beam deflection device used in an annular particle accelerator.

background

The annular particle accelerator is a device for generating high-speed charged particle beams by an artificial method, accelerates charged particles such as positive electrons, negative electrons, protons, heavy ions and the like by utilizing an electromagnetic field with a certain shape, is an important tool for human beings to change atomic nuclei, research basic particles and know deep structures of substances, and has wide application in the fields of industrial and agricultural production, medical treatment and health, national defense construction and the like.

when the particle beam is injected and extracted to accelerate the circular accelerator, the injected and extracted particle beam generates deflection at a certain angle when passing through a uniform electric field of the electrostatic deflection plate. The currently used cutting plates are typically no more than 0.1mm thick to reduce particle beam losses. The board with the thickness of 0.1mm generates excessive deformation, so that the electric field uniformity of the electrostatic field is poor.

disclosure of Invention

The invention aims to provide a particle beam deflection device used in a ring-shaped particle accelerator, which is used for solving the problem of non-uniformity of electric field distribution of an electrostatic field generated by a thin plate for deflecting a high-speed particle beam.

The invention provides a particle beam deflection device for a ring-shaped particle accelerator, which comprises an anode frame, wherein the upper side and the lower side of the anode frame are respectively provided with an upper row of units and a lower row of units, the upper row of units and the lower row of units respectively comprise a plurality of clamping and tensioning units which are sequentially arranged from left to right, each clamping and tensioning unit comprises a clamping mechanism and a tensioning mechanism, each clamping mechanism comprises a fixed block, a concave block and a convex block, each fixed block comprises an anode frame fixing part and a clamping and tensioning unit fixing part, and the end part of each clamping and tensioning unit fixing part is fixedly connected with the end part of the anode frame fixing part; the anode frame fixing part is fixed on the anode frame, the concave block is fixed on the clamping and tensioning unit fixing part, and the concave block and the convex block are nested with each other; the tensioning mechanism comprises a screw adjusting nut and a belleville spring, a screw perforation is formed in a fixing part of a clamping and tensioning unit of the fixing block, at least one tensioning screw hole is formed in the bottom of a groove of the concave block, threads are arranged on the inner wall of the tensioning screw hole, the screw penetrates through the screw perforation of the fixing block and is fixedly connected with the tensioning screw hole in a threaded mode, and the adjusting nut is arranged at the outer end of the screw.

Preferably, a groove is formed in the concave block, two clamping holes are arranged in the center of the bottom of the groove of the concave block side by side, two through holes are formed in the top of the convex block, internal threads are arranged on the inner wall of each through hole, the convex block is nested in the groove of the concave block, and the two clamping holes of the concave block and the two through holes of the convex block are fixed through penetrating screws.

Preferably, two sides of the bottom of the groove of the concave block are provided with two tensioning screw holes, and the centers of the two tensioning screw holes and the two clamping holes at the bottom of the groove of the same concave block are positioned on the same straight line.

Preferably, the concave block comprises a first inner side surface, a second inner side surface and an inner bottom surface, the first inner side surface and the second inner side surface are arranged at two ends of the inner bottom surface to form the groove, and the included angle between the first inner side surface and the second inner side surface is 10 degrees.

preferably, a first outer side surface and a second outer side surface are respectively arranged on two sides of the convex block, the first outer side surface and the second outer side surface are mutually inclined to form the convex block with one large end and the other small end, and the included angle between the surface of the first outer side surface and the surface of the second outer side surface is 10 degrees.

Preferably, the clamping and tensioning unit fixing part is integrally formed with the anode frame fixing part.

Preferably, an inner side included angle between the clamping and tensioning unit fixing part and the anode frame fixing part is less than 90 degrees.

preferably, the anode frame fixing part is provided with an anode frame fixing hole, and the anode frame fixing part and the anode frame are fixed through screws.

Preferably, the tensioning mechanism further comprises a disk spring, and the disk spring is arranged on the screw in a penetrating mode and located between the adjusting nut and the clamping and tensioning unit fixing portion.

The invention has the beneficial effects that:

the invention discloses a particle beam deflection device used in a ring-shaped particle accelerator, wherein the nested side surfaces of a concave block and a convex block clamp two ends of a metal strip; the adjusting nut is screwed to compress the belleville spring to generate elastic deformation, so that the metal strip is tensioned to adapt to the expansion and contraction caused by temperature change of the metal strip, the surface of the metal strip composed of the metal strip is finally ensured to be flat, and the problem of uneven electric field distribution caused by overlarge deformation of a plate with the thickness of not more than 0.1mm is solved. The particle beam deflection device is simple and convenient to mount and simple to operate, and can meet the requirement of electric field uniformity under the condition that the thickness of the cutting plate is not more than 0.1 mm.

Drawings

fig. 1 is a three-dimensional front view of a particle beam deflecting device according to embodiment 1 of the present invention;

Fig. 2 is a three-dimensional rear view of a particle beam deflecting device according to embodiment 1 of the present invention;

Fig. 3 is a left side view of a particle beam deflecting device according to embodiment 1 of the present invention;

Fig. 4 is a cross-sectional view of a fixing block provided in embodiment 1 of the present invention;

Fig. 5 is a plan view of a concave block provided in example 1 of the present invention;

FIG. 6 is a sectional view taken along line A-A of FIG. 5;

FIG. 7 is a sectional view taken along line B-B of FIG. 5;

Fig. 8 is a cross-sectional view of a convex block provided in example 1 of the present invention.

Detailed Description

the following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

in the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "left" and "right" are orientations or positional relationships described based on the drawings, and are for convenience of description of the present invention. The terms "first", "second", etc. are used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. It is worth mentioning that the first-mentioned type of the coating,