JPH06101397B2 - Vacuum container for accelerator - Google Patents
Vacuum container for acceleratorInfo
- Publication number
- JPH06101397B2 JPH06101397B2 JP31732987A JP31732987A JPH06101397B2 JP H06101397 B2 JPH06101397 B2 JP H06101397B2 JP 31732987 A JP31732987 A JP 31732987A JP 31732987 A JP31732987 A JP 31732987A JP H06101397 B2 JPH06101397 B2 JP H06101397B2
- Authority
- JP
- Japan
- Prior art keywords
- accelerator
- vacuum container
- vacuum
- stainless steel
- thin
- 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.)
- Expired - Fee Related
Links
Landscapes
- Particle Accelerators (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、シンクロトロン加速器など、高エネルギー
粒子加速器のビームを通すための加速器用真空容器に関
するものである。Description: TECHNICAL FIELD The present invention relates to an accelerator vacuum container for passing a beam of a high energy particle accelerator such as a synchrotron accelerator.
第４図は、例えばアイイーイーイーの原子核科学に関す
る報告（IEEE Transaction on Nuclear Science）第NS
−32巻、第５号（1985,10月）、3584〜3586ページに示
された従来の加速器用真空容器の曲管であり、図におい
て、楕円形断面で厚み0.3mmのステンレスで形成された
真空容器（11）の外周に一定のピツチでロー付けにより
固着された補強リブ（２）が設けられている。また、ビ
ーム軌道半径（Ｒ）の曲率になるように真空容器（11）
の内側から一定のピツチで押し出し加工した突出部
（３）が形成されている。第５図は突出部（３）の加工
方法を説明するためのもので、図において、真空容器
（11）に内接する半楕円形状のブロツク（４）、先端部
に突出山形を有しブロツク（４）側の穴をスライドして
反対側の管内面に押し当てるように設けた加工治具
（５）、加工治具（５）の後方から水や油などの流体で
圧力を加えるように設けた加圧ポート（６）等により、
突出部（３）が形成される。Figure 4 shows, for example, IEEE Transaction on Nuclear Science, NS.
-32, No. 5 (October, 1985), a curved tube of a conventional accelerator vacuum vessel shown on pages 3584 to 3586, and made of stainless steel with an elliptical cross section and a thickness of 0.3 mm in the figure. A reinforcing rib (2) fixed to the outer circumference of the vacuum container (11) by brazing with a constant pitch is provided. In addition, the vacuum vessel (11) should have a radius of curvature of the beam orbit (R).
A protrusion (3) is formed by extruding from the inside with a constant pitch. FIG. 5 is for explaining the processing method of the protruding portion (3). In the drawing, a semi-elliptical block (4) inscribed in the vacuum container (11) and a block having a protruding chevron at the tip ( 4) Processing jig (5) provided so that it slides through the hole on the side and presses against the inner surface of the pipe on the opposite side, and is provided so as to apply pressure from behind the processing jig (5) with a fluid such as water or oil The pressure port (6)
A protrusion (3) is formed.
以上のように構成された真空容器（11）をシンクロトロ
ン加速器（図示しない。）のビーム系に用いるとき、真
空容器（11）内を高真空に保持し、高エネルギー加速粒
子の周回軌道を形成する。ここで、シンクロトロン加速
を行うとき、金属管壁のうず電流損が問題であり、この
ため、ステンレスの薄肉管を用いてこのロスの低減化を
図つている。また、ビームを安定化させるため管路の断
面形状が一様であることが望ましく、ここでは管路の内
周部分に等ピツチの突出部（３）が形成されており、ベ
ローズ容器に較べて非常に平滑な壁面になつている。When the vacuum container (11) configured as described above is used in the beam system of a synchrotron accelerator (not shown), the vacuum container (11) is kept in a high vacuum to form a circular orbit of high energy accelerating particles. To do. Here, when performing synchrotron acceleration, there is a problem of eddy current loss in the wall of the metal tube. Therefore, a thin-walled stainless steel tube is used to reduce this loss. Further, in order to stabilize the beam, it is desirable that the sectional shape of the pipeline is uniform. Here, the projecting portion (3) of equal pitch is formed in the inner peripheral portion of the pipeline, which is more than that of the bellows container. It has a very smooth wall.
従来の加速器用真空容器は以上のように構成されている
ので、長尺の管を成形するのが難しく、また、突出部の
加工率をあまり大きくできないため、曲率の小さいシン
クロトロンには適用できないなどの問題点があつた。Since the conventional vacuum container for accelerator has the above-mentioned structure, it is difficult to form a long tube, and the processing rate of the protrusion cannot be increased so much that it cannot be applied to a synchrotron with a small curvature. There were problems such as.
この発明は上記のような問題点を解消するためになされ
たもので、うず電流損を小さくできるとともに、ビーム
加速を安定に行うことができるダクト形状に容易に製作
できる加速器用真空容器を得ることを目的とする。The present invention has been made to solve the above problems, and to obtain a vacuum container for an accelerator that can reduce eddy current loss and can be easily manufactured in a duct shape that can stably perform beam acceleration. With the goal.
この発明に係る加速器用真空容器は、ステンレス鋼でな
り多数に分割した単純形状の単位真空槽を、連続して補
強リブの部位で溶接結合してなるものである。The accelerator vacuum container according to the present invention is made of stainless steel and divided into a large number of simple unit vacuum tanks, which are continuously welded to each other at the reinforcing ribs.
この発明においては、管路の全長に亘つて薄肉板により
一様な断面形状に形成されるから、うず電流損は小さ
く、また、管路を滑かに形成できるので、不安定性を排
し、ビームを高効率に加速する。In this invention, since the thin plate has a uniform cross-sectional shape over the entire length of the conduit, the eddy current loss is small, and the conduit can be formed smoothly, so that the instability is eliminated. Accelerate the beam with high efficiency.
第１図〜第３図はこの発明の一実施例を示し、真空容器
（１）の曲率（Ｒ）の曲管部は薄肉のステンレス製真空
槽であり、内面は滑らかなレーストラツク断面形状とな
つている。補強リブ（２）は溶接ベローズと同様の構造
となつている。1 to 3 show an embodiment of the present invention, in which the curved tube portion of the vacuum vessel (1) having a curvature (R) is a thin stainless steel vacuum tank, and the inner surface has a smooth racetrack cross-sectional shape. I'm running. The reinforcing ribs (2) have the same structure as the welded bellows.
真空容器（１）は複数の単位真空槽（1a）を結合して構
成されており、ステンレス鋼でなる薄肉の単位真空槽
（1a）には両端にリブ（2a）が形成されている。そうし
て、隣接するリブ（2a）を溶接部（７）で溶接して補強
リブ（２）を形成し、内外圧力の差による変形を防いで
いる。The vacuum container (1) is configured by connecting a plurality of unit vacuum tanks (1a), and the thin unit vacuum tank (1a) made of stainless steel has ribs (2a) formed at both ends. Then, the adjacent ribs (2a) are welded at the welded portion (7) to form the reinforcing ribs (2), and deformation due to the difference in internal and external pressures is prevented.
上記のような構造の加速器用真空容器を従来のものと同
様にシンクロトロン加速器のビーム系に適用するときの
作用について説明する。The operation when the vacuum container for an accelerator having the above structure is applied to the beam system of the synchrotron accelerator as in the conventional case will be described.
第２図のような単位真空槽（1a）を薄肉のステンレス鋼
で製作することにより、うず電流損を著しく低下させる
ことができる。また、ビーム軌道の曲率が小さい管路も
一様な断面形状でしかも滑らかに形成できるのでビーム
加速を安定に行うことができる。By manufacturing the unit vacuum chamber (1a) as shown in FIG. 2 from thin stainless steel, the eddy current loss can be significantly reduced. In addition, since the conduit having the small curvature of the beam trajectory can be formed smoothly with a uniform cross-sectional shape, the beam can be accelerated stably.
以上のことから、この発明における加速器用真空容器は
従来のものに比べ、ビーム加速を高効率に行うことがで
きる。From the above, the accelerator vacuum container according to the present invention can perform beam acceleration with higher efficiency than the conventional vacuum container.
なお、上記実施例では曲管部への適用について述べた
が、直管部への適用も可能である。In the above embodiment, the application to the curved pipe section is described, but the application to the straight pipe section is also possible.
また、上記実施例では、加速器用真空容器の断面形状が
レーストラツク形の場合について述べたが、断面形状が
円形であつてもよい。Further, in the above-mentioned embodiment, the case where the cross-sectional shape of the accelerator vacuum container is the race track type is described, but the cross-sectional shape may be circular.
以上のように、この発明によれば、ビーム＝ダクト系の
真空容器を、薄肉のステンレス製の単位真空槽の複数個
を溶接によりつないで一体化する構造にしたので、加速
器に適用して、ビーム加速が高効率に行え、しかも板の
肉厚が薄いので安定に加速およびビームの蓄積ができ
る。As described above, according to the present invention, since the beam = duct type vacuum container has a structure in which a plurality of thin-walled stainless steel unit vacuum tanks are connected by welding to be integrated, it is applied to an accelerator, The beam can be accelerated with high efficiency, and since the plate is thin, the beam can be stably accelerated and the beam can be accumulated.
第１図〜第３図はこの発明の一実施例を示し、第１図は
一部斜視図、第２図は単位真空槽の斜視図、第３図は一
部縦断面図である。第４図は従来の加速器用真空容器の
一部斜視図、第５図は第４図のものの且工治具の概略側
面図である。 （１）……真空容器、（1a）……単位真空槽、（２）…
…補強リブ、（2a）……リブ、（７）……溶接部。 なお、各図中、同一符号は同一または相当部分を示す。1 to 3 show one embodiment of the present invention, FIG. 1 is a partial perspective view, FIG. 2 is a perspective view of a unit vacuum tank, and FIG. 3 is a partial longitudinal sectional view. FIG. 4 is a partial perspective view of a conventional vacuum container for an accelerator, and FIG. 5 is a schematic side view of the working jig shown in FIG. (1) ... Vacuum container, (1a) ... Unit vacuum tank, (2) ...
… Reinforcing ribs, (2a) …… Ribs, (7)… Welded parts. In each drawing, the same reference numerals indicate the same or corresponding parts.
Claims (1)
部分が形成されている複数個の単位真空槽を溶接結合し
てなる加速器用真空容器。1. A vacuum container for an accelerator, which is formed by welding and connecting a plurality of unit vacuum tanks made of thin-walled stainless steel and having reinforcing rib portions formed at both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31732987A JPH06101397B2 (en) | 1987-12-17 | 1987-12-17 | Vacuum container for accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31732987A JPH06101397B2 (en) | 1987-12-17 | 1987-12-17 | Vacuum container for accelerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01160000A JPH01160000A (en) | 1989-06-22 |
| JPH06101397B2 true JPH06101397B2 (en) | 1994-12-12 |
Family
ID=18086996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31732987A Expired - Fee Related JPH06101397B2 (en) | 1987-12-17 | 1987-12-17 | Vacuum container for accelerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06101397B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0817120B2 (en) * | 1990-04-06 | 1996-02-21 | 株式会社東芝 | Beam duct |
| JP5117969B2 (en) * | 2008-09-24 | 2013-01-16 | 三菱電機株式会社 | Vacuum duct |
| CN115843146B (en) * | 2022-12-02 | 2026-04-14 | 国科离子(杭州)医疗科技有限公司 | Thin-wall vacuum tube and vacuum chamber |
-
1987
- 1987-12-17 JP JP31732987A patent/JPH06101397B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01160000A (en) | 1989-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5618501A (en) | Catalytic converter with two or more honeycomb bodies in a casing tube and method for its production | |
| JPH0670558B2 (en) | Heat exchanger | |
| EP0802383A3 (en) | Multitubular heat exchanger having an appropriate tube arrangement pattern | |
| JPH06101397B2 (en) | Vacuum container for accelerator | |
| JPH0248010A (en) | Device for separating liquid droplets from a gas stream | |
| US5242101A (en) | Method for brazing catalytic converter carrier bodies | |
| Weaver et al. | On the stability of thin pipes with an internal flow | |
| US2925830A (en) | Fluid flow rectifier | |
| US3240266A (en) | Heat exchangers | |
| JP2001182627A (en) | EGR gas cooling device | |
| SU1740946A1 (en) | Plate-tube heat exchanger | |
| JP3206962B2 (en) | Vacuum container | |
| US6435825B1 (en) | Hollow nozzle partition with optimized wall thickness and method of forming | |
| JPH0629100A (en) | Vacuum container for accelerator | |
| CN114684390B (en) | Storage tank fluid acquisition device suitable for common-bottom storage tank | |
| JPH02109185U (en) | ||
| JP5117969B2 (en) | Vacuum duct | |
| JPH0514876B2 (en) | ||
| CN220134868U (en) | Rectangular tube liner tube connecting structure and refrigeration assembly | |
| JPH0751760Y2 (en) | Vacuum duct for particle accelerator | |
| JPH0412104Y2 (en) | ||
| JPH0221103A (en) | Inner radial small lines-inserted vaporization pipe designed to inhibit the generation of droplets | |
| JPH1048369A (en) | Neutral particle injector | |
| CN116582998A (en) | A special-shaped vacuum differential structure | |
| JPS6036000Y2 (en) | linear electron accelerator tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |