JPH03289099A - Beam duct - Google Patents
Beam ductInfo
- Publication number
- JPH03289099A JPH03289099A JP9020790A JP9020790A JPH03289099A JP H03289099 A JPH03289099 A JP H03289099A JP 9020790 A JP9020790 A JP 9020790A JP 9020790 A JP9020790 A JP 9020790A JP H03289099 A JPH03289099 A JP H03289099A
- Authority
- JP
- Japan
- Prior art keywords
- container
- ribs
- vacuum
- thin
- reinforcing ribs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 238000010884 ion-beam technique Methods 0.000 claims abstract 2
- 238000010894 electron beam technology Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000012466 permeate Substances 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Particle Accelerators (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、電子やイオンの加速器で、これらの粒子の加
速のためのシンクロトロンにおいて、特に偏向電磁石の
立ち上げくり返し数の速いもので、偏向電磁石部のビー
ムダクトに関するものである。[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to an electron or ion accelerator, and is particularly applicable to a synchrotron for accelerating these particles. This is a fast one and relates to the beam duct of the bending electromagnet.
（従来の技術）
入射エネルギーが低く、しがも高エネルギーで利用する
場合は、偏向電磁石の立ち上げのくり返しが速くなり、
このため、ビームダクトに発生するうず電流が大きくな
り、この電流によって磁場が形成され、ビームを曲げる
目的の軌道をはずすため、ビームダクトの肉厚は、うず
電流を押える上からも高抵抗で薄肉構造のベローズで構
成されていた。(Conventional technology) When the incident energy is low and it is used with high energy, the bending electromagnet repeatedly starts up quickly.
For this reason, the eddy current generated in the beam duct becomes large, and this current forms a magnetic field, which causes the beam to deviate from its intended trajectory. Therefore, the wall thickness of the beam duct must be made thin with high resistance in order to suppress the eddy current. The structure consisted of bellows.
第３図は成形ベローズであり、第４図は溶接ベローズの
場合である。FIG. 3 shows a molded bellows, and FIG. 4 shows a welded bellows.
（発明が解決しようとする課題）
第１図のようなベローズダクトはベローズで形成された
真空容器としてのビームダクトであり、内表面が厚肉ダ
クトに比べて大幅に大きくなることから、それに伴って
ビームダクトに取付けられる排気の容量の増大により真
空度の保持がむづかしかった。そこで本発明は排気効率
のよいビームダクトを提供することを目的とする。(Problems to be Solved by the Invention) A bellows duct as shown in Fig. 1 is a beam duct as a vacuum vessel formed of bellows, and its inner surface is significantly larger than that of a thick-walled duct. It was difficult to maintain the degree of vacuum due to the increased capacity of the exhaust gas installed in the beam duct. Therefore, an object of the present invention is to provide a beam duct with good exhaust efficiency.
（８題を解決するための手段）
本発明のビームダクトは、薄肉の筒状容器の外側に補強
リブを取付けた構成とする。(Means for Solving Eight Problems) The beam duct of the present invention has a structure in which reinforcing ribs are attached to the outside of a thin-walled cylindrical container.
（作 用）
このようにすとる、従来のビームダクトと同じ機械的強
度を保持しながら内表面積が小さくなるので、真空排気
しやすくなる。(Function) In this way, the internal surface area is reduced while maintaining the same mechanical strength as a conventional beam duct, making it easier to evacuate.
（実施例）
電気抵抗が高い材料で非磁性の材質のもので薄肉、（例
えば０．１５〜０．３ｍｍの肉厚）の筒状真空容器４を
形成する。第１図のような補強リブ５を真空容器４にと
りつける。また、第２図のように両側から凹部６になる
と同時にリブ５の内周面及び側面にフィトするように内
圧を加えながら絞り込み、リブ５と真空容器４とには隙
間がほとんどなくなる。この隙間を使って銀ロー付する
。このようにして出来たりブ５は真空容器４に完全に接
合され、補強としての性能を発揮する。(Example) A thin (for example, 0.15 to 0.3 mm thick) cylindrical vacuum container 4 is formed of a non-magnetic material with high electrical resistance. A reinforcing rib 5 as shown in FIG. 1 is attached to the vacuum container 4. Further, as shown in FIG. 2, the concave portions 6 are formed from both sides, and at the same time, the ribs 5 are narrowed while applying internal pressure so as to fit into the inner circumferential surface and side surfaces of the ribs 5, so that there is almost no gap between the ribs 5 and the vacuum container 4. Use this gap to apply silver solder. The tube 5 thus formed is completely joined to the vacuum container 4 and exhibits its reinforcing performance.
また、粒子を加速するためのリングは、一般には小形化
の傾向にあり、そのため粒子を曲げるために使用する偏
向電磁石も曲率をもったものであり、その内部に取付け
られる真空容器も当然曲率を持ったものである。このた
めに真空容器には偏向電磁石に沿って容易に曲げられる
構造にする必要があり、そのため凸部のベローズ７を設
は湾曲した部分の逃げを作る。In addition, rings for accelerating particles are generally becoming smaller, so the bending electromagnets used to bend particles also have curvature, and the vacuum container installed inside them naturally also has curvature. It is something I have. For this purpose, the vacuum container needs to have a structure that can be easily bent along the bending electromagnet, and for this reason, a convex bellows 7 is provided to provide relief at the curved portion.
真空容器を薄肉で製作した場合には容器４に負圧の１
ｋｇ／ｃｄが加わり、容器４はバックリングしてしまう
こともある。この防止と容器４の変形を小さくするため
にも補強が必要であり、このために補強用のリブ５が必
要で、その効果を増すためにはリブ５の高さを高くし採
用している。またリブ５は容器と一体結合となるように
ロー付構成となっている。本実施例はリブ５と容器４の
間を一体化し、剛性を上げるためにリブ５の両端に直接
接触し、ロー付時のローの流れを良好にするためと合せ
て補強効果を上げるために凹部による突起６を設けた。If the vacuum container is manufactured with a thin wall, negative pressure of 1 is applied to the container 4.
kg/cd, and the container 4 may buckle. Reinforcement is necessary to prevent this and to reduce the deformation of the container 4, and for this reason, reinforcing ribs 5 are required, and to increase the effect, the height of the ribs 5 is increased. . Further, the rib 5 is brazed so as to be integrally connected to the container. In this embodiment, the rib 5 and the container 4 are integrated, and are in direct contact with both ends of the rib 5 in order to increase rigidity, and in order to improve the flow of solder during brazing and to increase the reinforcing effect. A protrusion 6 formed by a recessed portion is provided.
また、湾曲した偏向電磁石にも対応出来るようにリブ５
とリブ５間にベローズ７を設け、曲げる時の逃げとした
。In addition, the rib 5 is designed to be compatible with curved bending electromagnets.
A bellows 7 is provided between the rib 5 and the rib 5 to provide relief during bending.
第２図に示すように薄肉容器としての真空容器を製作す
る場合には容器４の内部に負圧が加わった時の変形を防
止するために一般にはベローズ１またはベローズ３を設
けるが、ベローズ構造とした場合には曲率が多く用いら
れるため、それだけ表面積が多くなり、真空度を高める
のが困難であり、このため排気容量を上げる方法が用い
られている。この欠点を直すため補強リブ構造が採用さ
れているが、ロー付構成を完全なものとするため補強リ
ブと容器を一体とするのが問題であった。As shown in Fig. 2, when manufacturing a vacuum container as a thin-walled container, a bellows 1 or 3 is generally provided to prevent deformation when negative pressure is applied to the inside of the container 4, but the bellows structure In this case, since a large amount of curvature is used, the surface area increases accordingly, making it difficult to increase the degree of vacuum, and for this reason, a method of increasing the exhaust capacity is used. A reinforcing rib structure has been adopted to correct this drawback, but the problem was that the reinforcing ribs and the container must be integrated in order to complete the soldering structure.
この問題を解決するために内圧と絞りの技術を採用して
、リブ５に接触させロー付時のローの流れをよくする方
法を生み出した。In order to solve this problem, we adopted internal pressure and throttling techniques to create a method that improves the flow of the solder during brazing by bringing it into contact with the rib 5.
このようにすることにより、リブ５と容器４が一体とな
り容器としての剛性を高められる。By doing so, the ribs 5 and the container 4 are integrated and the rigidity of the container can be increased.
本発明によれば、真空排気しやすく剛性の高いビームダ
クトが得られる。According to the present invention, a beam duct that can be easily evacuated and has high rigidity can be obtained.
第１図は本発明の実施例のビームダクトの断面図、第２
図は他の実施例の断面図、第３図と第４図は従来のビー
ムダクトの図である。
１・・・成形ベローズ
３・・・溶接ベローズ
５・・・補強リブ
７・・・湾曲ベローズ
２・・・フランジ
４・・・真空容器
６・・・固定凹部Fig. 1 is a sectional view of a beam duct according to an embodiment of the present invention;
The figure is a sectional view of another embodiment, and FIGS. 3 and 4 are views of a conventional beam duct. 1... Molded bellows 3... Welded bellows 5... Reinforcement rib 7... Curved bellows 2... Flange 4... Vacuum vessel 6... Fixed recess
Claims (2)
器の外側に補強リブを取付けてなるビームダクト。(1) A beam duct consisting of a thin-walled cylindrical container through which electron or ion beams pass, with reinforcing ribs attached to the outside.
部のスプリング力によることを特徴とする請求項（１）
記載のビームダクト。(2) Claim (1) characterized in that the reinforcing ribs are attached by spring force of a convex portion formed on the outside of the cylindrical container.
Beam duct as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2090207A JPH0817120B2 (en) | 1990-04-06 | 1990-04-06 | Beam duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2090207A JPH0817120B2 (en) | 1990-04-06 | 1990-04-06 | Beam duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03289099A true JPH03289099A (en) | 1991-12-19 |
| JPH0817120B2 JPH0817120B2 (en) | 1996-02-21 |
Family
ID=13992043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2090207A Expired - Lifetime JPH0817120B2 (en) | 1990-04-06 | 1990-04-06 | Beam duct |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0817120B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831812A (en) * | 2018-06-12 | 2018-11-16 | 中国科学院近代物理研究所 | Vacuum tube for accelerator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6332900A (en) * | 1986-07-24 | 1988-02-12 | 株式会社東芝 | Vacuum chamber for synchrotron accelerator |
| JPS6486500A (en) * | 1987-09-29 | 1989-03-31 | Mitsubishi Electric Corp | Vacuum container for accelerator |
| JPH01160000A (en) * | 1987-12-17 | 1989-06-22 | Mitsubishi Electric Corp | Vacuum vessel for accelerator |
-
1990
- 1990-04-06 JP JP2090207A patent/JPH0817120B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6332900A (en) * | 1986-07-24 | 1988-02-12 | 株式会社東芝 | Vacuum chamber for synchrotron accelerator |
| JPS6486500A (en) * | 1987-09-29 | 1989-03-31 | Mitsubishi Electric Corp | Vacuum container for accelerator |
| JPH01160000A (en) * | 1987-12-17 | 1989-06-22 | Mitsubishi Electric Corp | Vacuum vessel for accelerator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831812A (en) * | 2018-06-12 | 2018-11-16 | 中国科学院近代物理研究所 | Vacuum tube for accelerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0817120B2 (en) | 1996-02-21 |
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