JPH0982497A - Collision point cooling system for electron / positron beam collider - Google Patents
Collision point cooling system for electron / positron beam colliderInfo
- Publication number
- JPH0982497A JPH0982497A JP23254395A JP23254395A JPH0982497A JP H0982497 A JPH0982497 A JP H0982497A JP 23254395 A JP23254395 A JP 23254395A JP 23254395 A JP23254395 A JP 23254395A JP H0982497 A JPH0982497 A JP H0982497A
- Authority
- JP
- Japan
- Prior art keywords
- cooling gas
- vacuum chamber
- cooling
- collision point
- double
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 22
- 239000000112 cooling gas Substances 0.000 claims abstract description 104
- 239000000110 cooling liquid Substances 0.000 claims abstract description 57
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000005192 partition Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000006866 deterioration Effects 0.000 abstract 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 4
- 229910052790 beryllium Inorganic materials 0.000 description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 3
- 230000002542 deteriorative effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005433 particle physics related processes and functions Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Particle Accelerators (AREA)
Abstract
(57)【要約】
【課題】 真空チェンバの衝突点部における物質量を増
やすことなく、充分な冷却を行うことができ、検出器に
よる素粒子の検出能力の低下を防止し得る電子・陽電子
ビーム衝突型加速器の衝突点部冷却装置を提供する。
【解決手段】 真空チェンバ１の衝突点部を二重管１１
とし、その内管９と外管１０との間を、冷却ガス１２が
流通可能な冷却ガス流路１３とし、且つ二重管１１の一
端に接続される真空チェンバ１の管壁に、冷却ガス流路
１３へ冷却ガス１２を供給する冷却ガス供給流路１６ａ
を形成し、二重管１１の他端に接続される真空チェンバ
１の管壁に、冷却ガス供給流路１６ａから冷却ガス流路
１３へ供給された冷却ガス１２を排出する冷却ガス排出
流路１６ｂを形成し、更に、二重管１１の両端に接続さ
れる真空チェンバ１の管壁に、内部に水等の冷却液体１
７が流通可能な冷却液体流路１８を形成する。
(57) Abstract: Electron / positron beam capable of performing sufficient cooling without increasing the amount of substance at the collision point of a vacuum chamber and preventing deterioration in detection ability of elementary particles by a detector Provided is a collision point cooling device for a collision type accelerator. SOLUTION: The collision point portion of the vacuum chamber 1 is provided with a double pipe 11.
A cooling gas passage 13 through which the cooling gas 12 can flow is provided between the inner pipe 9 and the outer pipe 10, and the cooling gas is provided on the pipe wall of the vacuum chamber 1 connected to one end of the double pipe 11. Cooling gas supply channel 16a for supplying the cooling gas 12 to the channel 13
And a cooling gas discharge channel for discharging the cooling gas 12 supplied from the cooling gas supply channel 16a to the cooling gas channel 13 on the tube wall of the vacuum chamber 1 connected to the other end of the double tube 11. 16b is formed on the tube wall of the vacuum chamber 1 which is connected to both ends of the double tube 11, and a cooling liquid 1 such as water is provided inside.
A cooling liquid channel 18 through which 7 can flow is formed.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電子・陽電子ビー
ム衝突型加速器の衝突点部冷却装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a collision point cooling device for an electron / positron beam collision type accelerator.
【０００２】[0002]
【従来の技術】素粒子物理学の各種実験用として用いら
れる電子・陽電子ビーム衝突型加速器は、一般に、図３
に示される如く、内部を超高真空に保持可能な銅（Ｃ
ｕ）やアルミニウム（Ａｌ）等の真空チェンバ１を環状
に配設してなるシンクロトロン２を備え、電子銃等の電
子発生装置３から射出される電子ｅ-と陽電子ｅ+とを線
形加速器４によって加速した後、前記電子ｅ-を入射蓄
積リング５で周回させて前記シンクロトロン２の真空チ
ェンバ１へ入射させると共に、前記陽電子ｅ+を前記シ
ンクロトロン２の真空チェンバ１へ前記電子ｅ-とは反
対方向に入射させ、シンクロトロン２の真空チェンバ１
内において電子ｅ-と陽電子ｅ+とを互いに反対方向へ周
回せしめて加速し、衝突点部において図示していない超
伝導電磁石の磁場の作用により衝突せしめるようになっ
ており、前記電子ｅ-と陽電子ｅ+との衝突時に発生して
真空チェンバ１を突き抜けて飛び出してくる素粒子を、
真空チェンバ１の衝突点部の周囲に設けられた検出器６
で検出するようになっている。2. Description of the Related Art Electron / positron beam collision type accelerators used for various experiments in elementary particle physics are generally shown in FIG.
As shown in Fig. 3, copper (C
u) or aluminum (Al) or the like, a synchrotron 2 in which a vacuum chamber 1 is annularly arranged, and an electron e − and a positron e + emitted from an electron generator 3 such as an electron gun are fed into a linear accelerator 4 After being accelerated by, the electron e − is circulated by the incident storage ring 5 and is incident on the vacuum chamber 1 of the synchrotron 2, and the positron e + is injected into the vacuum chamber 1 of the synchrotron 2 as the electron e − . Incident in the opposite direction, and the vacuum chamber 1 of the synchrotron 2
Electrons e in the inner - accelerated allowed orbiting the and positrons e + and in opposite directions, are adapted to allowed to collision by the action of the magnetic field of the superconducting magnet (not shown) in the collision point unit, the electrons e - and Elementary particles generated at the time of collision with the positron e + and penetrating through the vacuum chamber 1
Detector 6 provided around the collision point of the vacuum chamber 1
It is designed to detect with.
【０００３】尚、図３中、７は電子ｅ-に高周波を付与
して光速に近い速度まで加速するための高周波加速器、
８は陽電子ｅ+に高周波を付与して光速に近い速度まで
加速するための高周波加速器であり、又、真空チェンバ
１の屈曲部には、電子ｅ-又は陽電子ｅ+の進行方向を磁
場の作用により真空チェンバ１に沿って曲げる偏向電磁
石（図示せず）が設けられている。In FIG. 3, reference numeral 7 denotes a high frequency accelerator for applying a high frequency to the electron e − and accelerating it to a velocity close to the speed of light.
Reference numeral 8 is a high-frequency accelerator for applying a high frequency to the positron e + and accelerating it to a velocity close to the speed of light. Further, in the bent portion of the vacuum chamber 1, the traveling direction of the electron e − or the positron e + is applied by a magnetic field. A bending electromagnet (not shown) that bends along the vacuum chamber 1 is provided.
【０００４】従来、前記真空チェンバ１の衝突点部は、
素粒子が突き抜けて飛び出しやすくするために、質量の
小さいベリリウム（Ｂｅ）や炭素繊維強化プラスチック
（ＣＦＲＰ）等で形成された管が使用され、又、前記真
空チェンバ１の衝突点部は、その内面において、放射光
の散乱や高次モードの電磁波による発熱があり、検出器
６に影響を及ぼすため、図４及び図５に示される如く、
前記真空チェンバ１の衝突点部を、ベリリウムや炭素繊
維強化プラスチック等の内管９と外管１０とからなる二
重管１１構造とすることにより、該二重管１１の内管９
と外管１０との間を、ヘリウム（Ｈｅ）等の冷却ガス１
２が流通可能な冷却ガス流路１３とし、且つ前記衝突点
部における二重管１１の一端に接続される真空チェンバ
１の管壁に、前記冷却ガス流路１３へ冷却ガス１２を供
給するための冷却ガス供給流路１６ａを形成すると共
に、前記衝突点部における二重管１１の他端に接続され
る真空チェンバ１の管壁に、前記冷却ガス供給流路１６
ａから二重管１１の冷却ガス流路１３へ供給された冷却
ガス１２を排出する冷却ガス排出流路１６ｂを形成し
て、前記冷却ガス供給流路１６ａから冷却ガス流路１３
を経て冷却ガス排出流路１６ｂに冷却ガス１２を流通せ
しめることにより、前記真空チェンバ１の衝突点部にお
ける温度上昇を抑制し、前記検出器６への影響を極力小
さくするようにしていた。Conventionally, the collision point portion of the vacuum chamber 1 is
A tube made of beryllium (Be) or carbon fiber reinforced plastic (CFRP), which has a small mass, is used in order to make it easy for elementary particles to penetrate and pop out, and the collision point portion of the vacuum chamber 1 has an inner surface In the above, there is scattering of radiated light and heat generation by electromagnetic waves of higher modes, which affects the detector 6, so that as shown in FIGS.
The collision point portion of the vacuum chamber 1 has a double tube 11 structure including an inner tube 9 and an outer tube 10 made of beryllium, carbon fiber reinforced plastic, etc.
A cooling gas 1 such as helium (He) is provided between the outer tube 10 and the outer tube 10.
In order to supply the cooling gas 12 to the cooling gas passage 13 on the wall of the vacuum chamber 1 connected to one end of the double pipe 11 at the collision point, Of the cooling gas supply passage 16a is formed, and the cooling gas supply passage 16a is formed on the pipe wall of the vacuum chamber 1 connected to the other end of the double pipe 11 at the collision point.
A cooling gas discharge passage 16b for discharging the cooling gas 12 supplied from the cooling gas passage 13 of the double pipe 11 to the cooling gas passage 13 is formed from the cooling gas supply passage 16a.
By circulating the cooling gas 12 through the cooling gas discharge flow path 16b through the above, the temperature rise at the collision point portion of the vacuum chamber 1 is suppressed, and the influence on the detector 6 is minimized.
【０００５】尚、前記冷却ガス供給流路１６ａは、前記
衝突点部における二重管１１の一端に接続される真空チ
ェンバ１の管壁に、図４及び図６に示される如く、該真
空チェンバ１の軸線方向へ延びる冷却ガス供給凹溝１４
ａを刻設し且つ該冷却ガス供給凹溝１４ａの開口部を閉
塞部材１５ａで覆うことにより、二重管１１の冷却ガス
流路１３へ冷却ガス１２を供給し得るよう構成してある
と共に、前記冷却ガス排出流路１６ｂは、前記衝突点部
における二重管１１の他端に接続される真空チェンバ１
の管壁に、該真空チェンバ１の軸線方向へ延びる冷却ガ
ス排出凹溝１４ｂを刻設し且つ該冷却ガス排出凹溝１４
ｂの開口部を閉塞部材１５ｂで覆うことにより、冷却ガ
ス供給流路１６ａから二重管１１の冷却ガス流路１３へ
供給された冷却ガス１２を排出し得るよう構成してあ
る。The cooling gas supply passage 16a is formed on the tube wall of the vacuum chamber 1 connected to one end of the double pipe 11 at the collision point, as shown in FIGS. 4 and 6. Cooling gas supply groove 14 extending in the axial direction of 1
By engraving a and covering the opening of the cooling gas supply groove 14a with the closing member 15a, the cooling gas 12 can be supplied to the cooling gas passage 13 of the double pipe 11, and The cooling gas discharge passage 16b is connected to the other end of the double pipe 11 at the collision point, and the vacuum chamber 1 is connected.
Is formed with a cooling gas discharge groove 14b extending in the axial direction of the vacuum chamber 1 and the cooling gas discharge groove 14b.
By covering the opening of b with the closing member 15b, the cooling gas 12 supplied from the cooling gas supply passage 16a to the cooling gas passage 13 of the double pipe 11 can be discharged.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、前述の
如く、二重管１１の内管９と外管１０との間に形成した
冷却ガス流路１３に冷却ガス１２を流すのでは、充分な
冷却能力が得られず、このため、冷却ガス１２の流量を
増加させようとした場合、冷却ガス流路１３内の圧力が
高くなり、強度上、内管９と外管１０の肉厚を厚くする
必要があり、検出器６による素粒子の検出能力が低下す
るという欠点を有していた。However, as described above, if the cooling gas 12 is made to flow through the cooling gas passage 13 formed between the inner pipe 9 and the outer pipe 10 of the double pipe 11, sufficient cooling is achieved. When the flow rate of the cooling gas 12 is increased, the pressure in the cooling gas passage 13 becomes high, and the wall thicknesses of the inner pipe 9 and the outer pipe 10 are made thicker in terms of strength. However, the detector 6 has a drawback that the ability of the detector 6 to detect elementary particles is reduced.
【０００７】又、充分な冷却能力を得るために、前記二
重管１１の内管９と外管１０との間に、冷却ガス１２で
はなく冷却液体を流すことも考えられるが、この場合、
衝突点部に質量の小さいベリリウムや炭素繊維強化プラ
スチック等の管を使用しても、前記冷却液体の分、衝突
点部における物質量が増加する形となり、検出器６によ
る素粒子の検出能力が低下してしまい、好ましくなかっ
た。In order to obtain a sufficient cooling capacity, it is conceivable to flow a cooling liquid instead of the cooling gas 12 between the inner pipe 9 and the outer pipe 10 of the double pipe 11, but in this case,
Even if a tube with a small mass such as beryllium or carbon fiber reinforced plastic is used at the collision point, the amount of the substance at the collision point is increased by the amount of the cooling liquid, and the detector 6 has a capability of detecting elementary particles. It decreased, which was not preferable.
【０００８】本発明は、斯かる実情に鑑み、真空チェン
バの衝突点部における物質量を増やすことなく、充分な
冷却を行うことができ、検出器による素粒子の検出能力
の低下を防止し得る電子・陽電子ビーム衝突型加速器の
衝突点部冷却装置を提供しようとするものである。In view of the above situation, the present invention can perform sufficient cooling without increasing the amount of substance at the collision point of the vacuum chamber, and can prevent the detector from deteriorating its ability to detect elementary particles. An object of the present invention is to provide a collision point cooling device for an electron / positron beam collision type accelerator.
【０００９】[0009]
【課題を解決するための手段】本発明は、内部を超高真
空に保持可能な真空チェンバを環状に配設してなるシン
クロトロンを備え、該シンクロトロンの真空チェンバ内
において電子と陽電子とを互いに反対方向へ周回せしめ
て加速し、衝突点部において衝突せしめ、衝突時に発生
する素粒子を検出器で検出する電子・陽電子ビーム衝突
型加速器の衝突点部冷却装置であって、真空チェンバの
衝突点部を内管と外管とからなる二重管構造とすること
により、該二重管の内管と外管との間を、冷却ガスが流
通可能な冷却ガス流路とし、且つ前記衝突点部における
二重管の一端に接続される真空チェンバの管壁に、前記
冷却ガス流路へ冷却ガスを供給するための冷却ガス供給
流路を形成すると共に、前記衝突点部における二重管の
他端に接続される真空チェンバの管壁に、前記冷却ガス
供給流路から二重管の冷却ガス流路へ供給された冷却ガ
スを排出するための冷却ガス排出流路を形成し、前記衝
突点部における二重管の両端に接続される真空チェンバ
の管壁に夫々、内部に冷却液体が流通可能な冷却液体流
路を形成したことを特徴とする電子・陽電子ビーム衝突
型加速器の衝突点部冷却装置にかかるものである。SUMMARY OF THE INVENTION The present invention comprises a synchrotron in which a vacuum chamber capable of maintaining an ultrahigh vacuum inside is annularly arranged, and electrons and positrons are stored in the vacuum chamber of the synchrotron. It is a collision point cooling device for electron / positron beam collision type accelerators that accelerates by orbiting in opposite directions, collides at the collision point, and detects the elementary particles generated at the collision with a detector. By forming the double-tube structure including the inner tube and the outer tube at the point portion, a cooling gas passage through which a cooling gas can flow is provided between the inner tube and the outer tube of the double tube, and the collision A cooling gas supply passage for supplying a cooling gas to the cooling gas passage is formed on the pipe wall of the vacuum chamber connected to one end of the double pipe at the point portion, and the double pipe at the collision point portion is formed. Connected to the other end of A cooling gas discharge passage for discharging the cooling gas supplied from the cooling gas supply passage to the cooling gas passage of the double pipe is formed on the pipe wall of the empty chamber, and the double pipe at the collision point is formed. Related to a collision point cooling device for an electron-positron beam collision type accelerator characterized in that a cooling liquid channel through which a cooling liquid can flow is formed in each of the tube walls of a vacuum chamber connected to both ends of Is.
【００１０】又、前記電子・陽電子ビーム衝突型加速器
の衝突点部冷却装置においては、前記衝突点部における
二重管の一端に接続される真空チェンバの管壁に、該真
空チェンバの軸線方向へ延びる冷却ガス供給凹溝を刻設
し且つ該冷却ガス供給凹溝の開口部を閉塞部材で覆うこ
とにより、前記冷却ガス供給流路を構成すると共に、前
記衝突点部における二重管の他端に接続される真空チェ
ンバの管壁に、該真空チェンバの軸線方向へ延びる冷却
ガス排出凹溝を刻設し且つ該冷却ガス排出凹溝の開口部
を閉塞部材で覆うことにより、前記冷却ガス排出流路を
構成し、前記衝突点部における二重管の両端に接続され
る真空チェンバの管壁に夫々、該真空チェンバの軸線方
向における反衝突点部側から衝突点部側へ延びる冷却液
体供給凹溝と、該冷却液体供給凹溝の衝突点部側の端部
と連通し且つ前記冷却液体供給凹溝と仕切壁を隔てて略
平行となるよう真空チェンバの軸線方向における衝突点
部側から反衝突点部側へ延びる冷却液体排出凹溝とを刻
設し、前記冷却液体供給凹溝の開口部と冷却液体排出凹
溝の開口部を閉塞部材で覆うことにより、前記冷却液体
流路を構成することができる。Further, in the collision point cooling device of the electron / positron beam collision type accelerator, in the tube wall of the vacuum chamber connected to one end of the double tube at the collision point, in the axial direction of the vacuum chamber. The cooling gas supply groove is formed, and the opening of the cooling gas supply groove is covered with a closing member to form the cooling gas supply passage and the other end of the double pipe at the collision point. The cooling gas discharge concave groove extending in the axial direction of the vacuum chamber is engraved on the tube wall of the vacuum chamber connected to the cooling chamber, and the opening of the cooling gas discharge concave groove is covered with a closing member to discharge the cooling gas. Cooling liquid supply that forms a flow path and extends from the side opposite to the collision point in the axial direction of the vacuum chamber to the side of the collision point on the tube walls of the vacuum chamber connected to both ends of the double tube at the collision point. Groove and the From the collision point side in the axial direction of the vacuum chamber to the anti-collision point side so that the cooling liquid supply concave groove communicates with the end on the collision point side and is substantially parallel to the cooling liquid supply concave groove. A cooling liquid discharge concave groove extending to the cooling liquid discharge concave groove, and the opening of the cooling liquid supply concave groove and the opening of the cooling liquid discharge concave groove are covered with a closing member to form the cooling liquid flow path. .
【００１１】従って、電子・陽電子ビーム衝突型加速器
の運転時には、冷却ガスが、冷却ガス供給流路から冷却
ガス流路を経て冷却ガス排出流路に流通されると共に、
冷却液体が冷却液体流路に流通され、前記冷却ガスと冷
却液体とによって、真空チェンバの衝突点部における温
度上昇が確実に抑制され、検出器への影響が最小限に抑
えられる。Therefore, during the operation of the electron / positron beam collision type accelerator, the cooling gas is circulated from the cooling gas supply passage through the cooling gas passage to the cooling gas discharge passage, and
The cooling liquid is circulated in the cooling liquid flow path, and the cooling gas and the cooling liquid reliably suppress the temperature rise at the collision point of the vacuum chamber, and the influence on the detector is minimized.
【００１２】しかも、二重管の内管と外管との間に形成
した冷却ガス流路には、所定流量の冷却ガスを流せばよ
いため、内管と外管の肉厚を厚くする必要がなく、又、
冷却液体は、衝突点部における二重管の両端に接続され
る真空チェンバの管壁に形成した冷却液体流路を流れる
ため、衝突点部における物質量が増加することもなく、
検出器による素粒子の検出能力は低下しない。In addition, since the cooling gas passage formed between the inner pipe and the outer pipe of the double pipe may be supplied with a predetermined amount of cooling gas, it is necessary to increase the thickness of the inner pipe and the outer pipe. There is no
Since the cooling liquid flows through the cooling liquid flow path formed in the tube wall of the vacuum chamber connected to both ends of the double tube at the collision point, the amount of substance at the collision point does not increase,
The ability of the detector to detect elementary particles does not decrease.
【００１３】又、前記冷却ガス供給流路と冷却ガス排出
流路を、真空チェンバの管壁に直接刻設した冷却ガス供
給凹溝の開口部を閉塞部材で覆うことにより構成すると
共に、冷却液体流路を、真空チェンバの管壁に直接刻設
した冷却液体供給凹溝の開口部と冷却液体排出凹溝の開
口部を閉塞部材で覆うことにより構成すれば、真空チェ
ンバの管壁を直接冷却ガスと冷却液体とによって効率よ
く冷却することが可能となり、しかも、真空チェンバの
外部に冷却用の配管等を別個に配設するのではないた
め、余分なスペースも取らなくて済む。Further, the cooling gas supply passage and the cooling gas discharge passage are constituted by covering the opening of the cooling gas supply concave groove directly engraved on the tube wall of the vacuum chamber with a closing member, and at the same time, the cooling liquid. If the flow path is configured by covering the openings of the cooling liquid supply concave groove and the cooling liquid discharge concave groove directly engraved on the vacuum chamber pipe wall with the closing member, the vacuum chamber pipe wall is directly cooled. It is possible to efficiently cool the gas and the cooling liquid, and since the cooling pipes and the like are not separately provided outside the vacuum chamber, no extra space is required.
【００１４】[0014]
【発明の実施の形態】以下、本発明の実施の形態を図示
例と共に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
【００１５】図１及び図２は本発明を実施する形態の一
例であって、図中、図３〜図６と同一の符号を付した部
分は同一物を表わしており、基本的な構成は図３〜図６
に示す従来のものと同様であるが、本図示例の特徴とす
るところは、図１及び図２に示す如く、真空チェンバ１
の衝突点部を内管９と外管１０とからなる二重管１１構
造とすることにより、該二重管１１の内管９と外管１０
との間を、冷却ガス１２が流通可能な冷却ガス流路１３
とし、且つ前記衝突点部における二重管１１の一端に接
続される真空チェンバ１の管壁に、前記冷却ガス流路１
３へ冷却ガス１２を供給するための冷却ガス供給流路１
６ａを形成すると共に、前記衝突点部における二重管１
１の他端に接続される真空チェンバ１の管壁に、前記冷
却ガス供給流路１６ａから二重管１１の冷却ガス流路１
３へ供給された冷却ガス１２を排出するための冷却ガス
排出流路１６ｂを形成することに加え、更に、衝突点部
における二重管１１の両端に接続される真空チェンバ１
の管壁に、内部に水等の冷却液体１７が流通可能な冷却
液体流路１８を形成した点にある。FIG. 1 and FIG. 2 show an example of an embodiment for carrying out the present invention. In the drawings, the parts denoted by the same reference numerals as those in FIGS. 3 to 6
Although it is the same as the conventional one shown in FIG. 2, the feature of this illustrated example is that the vacuum chamber 1 as shown in FIGS.
By making the collision point part of the double pipe 11 structure including the inner pipe 9 and the outer pipe 10, the inner pipe 9 and the outer pipe 10 of the double pipe 11
And a cooling gas passage 13 through which the cooling gas 12 can flow.
The cooling gas flow path 1 is provided on the tube wall of the vacuum chamber 1 connected to one end of the double tube 11 at the collision point.
Cooling gas supply channel 1 for supplying cooling gas 12 to
6a and double pipe 1 at the collision point
1 to the pipe wall of the vacuum chamber 1 connected to the other end of the vacuum chamber 1 from the cooling gas supply passage 16a to the cooling gas passage 1 of the double pipe 11.
In addition to forming a cooling gas discharge flow passage 16b for discharging the cooling gas 12 supplied to the vacuum chamber 1, the vacuum chamber 1 connected to both ends of the double pipe 11 at the collision point portion.
The point is that a cooling liquid flow path 18 through which a cooling liquid 17 such as water can flow is formed on the pipe wall.
【００１６】前記冷却液体流路１８は、前記衝突点部に
おける二重管１１の両端に接続される真空チェンバ１の
管壁に夫々、該真空チェンバ１の軸線方向における反衝
突点部側から衝突点部側へ延びる冷却液体供給凹溝１９
ａと、該冷却液体供給凹溝１９ａの衝突点部側の端部と
連通し且つ前記冷却液体供給凹溝１９ａと仕切壁２０を
隔てて略平行となるよう真空チェンバ１の軸線方向にお
ける衝突点部側から反衝突点部側へ延びる冷却液体排出
凹溝１９ｂとを刻設し、前記冷却液体供給凹溝１９ａの
開口部と冷却液体排出凹溝１９ｂの開口部を閉塞部材２
１で覆うことにより構成してある。The cooling liquid flow paths 18 collide with the tube walls of the vacuum chamber 1 connected to both ends of the double tube 11 at the collision point, respectively, from the side opposite to the collision point in the axial direction of the vacuum chamber 1. Cooling liquid supply concave groove 19 extending toward the point side
a and a collision point in the axial direction of the vacuum chamber 1 so as to communicate with the end portion of the cooling liquid supply concave groove 19a on the collision point side and be substantially parallel to each other with the cooling liquid supply concave groove 19a separated by the partition wall 20. A cooling liquid discharge concave groove 19b extending from the portion side to the anti-collision point side, and closing the opening of the cooling liquid supply concave groove 19a and the opening of the cooling liquid discharge concave groove 19b.
It is configured by covering with 1.
【００１７】前述の如く構成したので、電子・陽電子ビ
ーム衝突型加速器の運転時には、冷却ガス１２が、冷却
ガス供給凹溝１４ａの開口部を閉塞部材１５ａで覆って
なる冷却ガス供給流路１６ａから冷却ガス流路１３を経
て、冷却ガス排出凹溝１４ｂの開口部を閉塞部材１５ｂ
で覆ってなる冷却ガス排出流路１６ｂに流通されると共
に、冷却液体１７が、冷却液体供給凹溝１９ａの開口部
と冷却液体排出凹溝１９ｂの開口部を閉塞部材２１で覆
ってなる冷却液体流路１８に流通され、前記冷却ガス１
２と冷却液体１７とによって、真空チェンバ１の衝突点
部における温度上昇が確実に抑制され、検出器６への影
響が最小限に抑えられる。With the above-described configuration, during the operation of the electron / positron beam collision type accelerator, the cooling gas 12 flows from the cooling gas supply passage 16a formed by covering the opening of the cooling gas supply groove 14a with the closing member 15a. Through the cooling gas flow path 13, the opening of the cooling gas discharge groove 14b is closed by a closing member 15b.
The cooling liquid 17 is circulated in the cooling gas discharge passage 16b covered with the cooling liquid 17, and the cooling liquid 17 covers the openings of the cooling liquid supply concave groove 19a and the cooling liquid discharge concave groove 19b with the closing member 21. The cooling gas 1 is circulated through the flow path 18.
The temperature rise at the collision point of the vacuum chamber 1 is surely suppressed by 2 and the cooling liquid 17, and the influence on the detector 6 is minimized.
【００１８】しかも、二重管１１の内管９と外管１０と
の間に形成した冷却ガス流路１３には、所定流量の冷却
ガス１２を流せばよいため、内管９と外管１０の肉厚を
厚くする必要がなく、又、冷却液体１７は、衝突点部に
おける二重管１１の両端に接続される真空チェンバ１の
管壁に形成した冷却液体流路１８を流れるため、衝突点
部における物質量が増加することもなく、検出器６によ
る素粒子の検出能力は低下しない。Moreover, the cooling gas passage 13 formed between the inner pipe 9 and the outer pipe 10 of the double pipe 11 may be supplied with the cooling gas 12 at a predetermined flow rate. The cooling liquid 17 does not have to be thicker and the cooling liquid 17 flows through the cooling liquid flow path 18 formed in the tube wall of the vacuum chamber 1 connected to both ends of the double tube 11 at the collision point, so that the collision There is no increase in the amount of the substance at the dot portion, and the detection ability of elementary particles by the detector 6 does not decrease.
【００１９】又、前記冷却ガス供給流路１６ａと冷却ガ
ス排出流路１６ｂは、真空チェンバ１の管壁に直接刻設
した冷却ガス供給凹溝１４ａの開口部を閉塞部材１５ａ
で覆うことにより構成してあり、冷却液体流路１８は、
真空チェンバ１の管壁に直接刻設した冷却液体供給凹溝
１９ａの開口部と冷却液体排出凹溝１９ｂの開口部を閉
塞部材２１で覆うことにより構成してあるため、真空チ
ェンバ１の管壁を直接冷却ガス１２と冷却液体１７とに
よって効率よく冷却することが可能となり、しかも、真
空チェンバ１の外部に冷却用の配管等を別個に配設する
のではないため、余分なスペースも取らなくて済む。Further, the cooling gas supply passage 16a and the cooling gas discharge passage 16b close the opening of the cooling gas supply concave groove 14a formed directly on the tube wall of the vacuum chamber 1 by the closing member 15a.
And the cooling liquid flow path 18 is
Since the opening of the cooling liquid supply concave groove 19a and the opening of the cooling liquid discharge concave groove 19b directly engraved on the tube wall of the vacuum chamber 1 are covered with the closing member 21, the tube wall of the vacuum chamber 1 Can be efficiently cooled directly by the cooling gas 12 and the cooling liquid 17, and since a cooling pipe or the like is not separately arranged outside the vacuum chamber 1, no extra space is taken. Complete.
【００２０】こうして、真空チェンバ１の衝突点部にお
ける物質量を増やすことなく、充分な冷却を行うことが
でき、検出器６による素粒子の検出能力の低下を防止し
得る。In this way, sufficient cooling can be performed without increasing the amount of substance at the collision point of the vacuum chamber 1, and it is possible to prevent the detector 6 from deteriorating its ability to detect elementary particles.
【００２１】尚、本発明の電子・陽電子ビーム衝突型加
速器の衝突点部冷却装置は、上述の図示例にのみ限定さ
れるものではなく、本発明の要旨を逸脱しない範囲内に
おいて種々変更を加え得ることは勿論である。It should be noted that the collision point cooling device for the electron / positron beam collision type accelerator of the present invention is not limited to the above-mentioned illustrated example, and various modifications may be made without departing from the scope of the present invention. Of course you can get it.
【００２２】[0022]
【発明の効果】以上、説明したように本発明の請求項
１，２に記載の電子・陽電子ビーム衝突型加速器の衝突
点部冷却装置によれば、真空チェンバの衝突点部におけ
る物質量を増やすことなく、充分な冷却を行うことがで
き、検出器による素粒子の検出能力の低下を防止し得る
という優れた効果を奏し得る。As described above, according to the collision point portion cooling device of the electron / positron beam collision type accelerator according to claims 1 and 2 of the present invention, the amount of substance at the collision point portion of the vacuum chamber is increased. It is possible to achieve a sufficient effect that sufficient cooling can be performed without a decrease in the ability of the detector to detect elementary particles.
【図１】本発明を実施する形態の一例を表わす要部拡大
断面図である。FIG. 1 is an enlarged sectional view of an essential part showing an example of an embodiment for carrying out the present invention.
【図２】図１のＩＩ−ＩＩ断面図である。FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】電子・陽電子ビーム衝突型加速器の全体概要平
面図である。FIG. 3 is an overall schematic plan view of an electron / positron beam collision type accelerator.
【図４】電子・陽電子ビーム衝突型加速器の衝突点部を
表わす要部拡大断面図である。FIG. 4 is an enlarged sectional view of an essential part showing a collision point portion of an electron / positron beam collision type accelerator.
【図５】図４のＶ−Ｖ断面図である。FIG. 5 is a sectional view taken along line VV of FIG. 4;
【図６】図４のＶＩ−ＶＩ断面図である。6 is a sectional view taken along line VI-VI in FIG.
１ 真空チェンバ ２ シンクロトロン ６ 検出器 ９ 内管 １０ 外管 １１ 二重管 １２ 冷却ガス １３ 冷却ガス流路 １４ａ 冷却ガス供給凹溝 １４ｂ 冷却ガス排出凹溝 １５ａ 閉塞部材 １５ｂ 閉塞部材 １６ａ 冷却ガス供給流路 １６ｂ 冷却ガス排出流路 １７ 冷却液体 １８ 冷却液体流路 １９ａ 冷却液体供給凹溝 １９ｂ 冷却液体排出凹溝 ２０ 仕切壁 ２１ 閉塞部材 ｅ- 電子 ｅ+ 陽電子DESCRIPTION OF SYMBOLS 1 Vacuum chamber 2 Synchrotron 6 Detector 9 Inner tube 10 Outer tube 11 Double tube 12 Cooling gas 13 Cooling gas flow path 14a Cooling gas supply groove 14b Cooling gas discharge groove 15a Closing member 15b Closing member 16a Cooling gas supply flow Channel 16b Cooling gas discharge flow path 17 Cooling liquid 18 Cooling liquid flow path 19a Cooling liquid supply concave groove 19b Cooling liquid discharge concave groove 20 Partition wall 21 Closing member e - electron e + positron
Claims (2)
バを環状に配設してなるシンクロトロンを備え、該シン
クロトロンの真空チェンバ内において電子と陽電子とを
互いに反対方向へ周回せしめて加速し、衝突点部におい
て衝突せしめ、衝突時に発生する素粒子を検出器で検出
する電子・陽電子ビーム衝突型加速器の衝突点部冷却装
置であって、 真空チェンバの衝突点部を内管と外管とからなる二重管
構造とすることにより、該二重管の内管と外管との間
を、冷却ガスが流通可能な冷却ガス流路とし、且つ前記
衝突点部における二重管の一端に接続される真空チェン
バの管壁に、前記冷却ガス流路へ冷却ガスを供給するた
めの冷却ガス供給流路を形成すると共に、前記衝突点部
における二重管の他端に接続される真空チェンバの管壁
に、前記冷却ガス供給流路から二重管の冷却ガス流路へ
供給された冷却ガスを排出するための冷却ガス排出流路
を形成し、 前記衝突点部における二重管の両端に接続される真空チ
ェンバの管壁に夫々、内部に冷却液体が流通可能な冷却
液体流路を形成したことを特徴とする電子・陽電子ビー
ム衝突型加速器の衝突点部冷却装置。1. A synchrotron comprising a vacuum chamber in which a vacuum chamber capable of holding an ultrahigh vacuum inside is annularly provided, and electrons and positrons are circulated in opposite directions in the vacuum chamber of the synchrotron to accelerate. A collision point cooling device for an electron / positron beam collision type accelerator in which elementary particles generated at the collision point are detected by a detector, and the collision point portion of the vacuum chamber is divided into an inner tube and an outer tube. And a double-pipe structure having a double-pipe structure in which a cooling gas passage through which a cooling gas can flow is provided between an inner pipe and an outer pipe of the double pipe, and one end of the double pipe at the collision point portion. A vacuum gas supply channel for supplying a cooling gas to the cooling gas channel is formed on the tube wall of the vacuum chamber connected to the vacuum chamber, and a vacuum connected to the other end of the double tube at the collision point. In front of the chamber wall A vacuum chamber that forms a cooling gas discharge passage for discharging the cooling gas supplied from the cooling gas supply passage to the cooling gas passage of the double pipe, and is connected to both ends of the double pipe at the collision point portion. A cooling liquid flow path through which a cooling liquid can flow is formed on each of the tube walls of the above. A collision point portion cooling device for an electron / positron beam collision type accelerator.
続される真空チェンバの管壁に、該真空チェンバの軸線
方向へ延びる冷却ガス供給凹溝を刻設し且つ該冷却ガス
供給凹溝の開口部を閉塞部材で覆うことにより、前記冷
却ガス供給流路を構成すると共に、前記衝突点部におけ
る二重管の他端に接続される真空チェンバの管壁に、該
真空チェンバの軸線方向へ延びる冷却ガス排出凹溝を刻
設し且つ該冷却ガス排出凹溝の開口部を閉塞部材で覆う
ことにより、前記冷却ガス排出流路を構成し、 前記衝突点部における二重管の両端に接続される真空チ
ェンバの管壁に夫々、該真空チェンバの軸線方向におけ
る反衝突点部側から衝突点部側へ延びる冷却液体供給凹
溝と、該冷却液体供給凹溝の衝突点部側の端部と連通し
且つ前記冷却液体供給凹溝と仕切壁を隔てて略平行とな
るよう真空チェンバの軸線方向における衝突点部側から
反衝突点部側へ延びる冷却液体排出凹溝とを刻設し、前
記冷却液体供給凹溝の開口部と冷却液体排出凹溝の開口
部を閉塞部材で覆うことにより、前記冷却液体流路を構
成した請求項１記載の電子・陽電子ビーム衝突型加速器
の衝突点部冷却装置。2. A cooling gas supply groove extending in the axial direction of the vacuum chamber is formed in the tube wall of the vacuum chamber connected to one end of the double tube at the collision point, and the cooling gas supply groove is formed. The cooling gas supply flow path is constituted by covering the opening of the vacuum chamber with a closing member, and the tube wall of the vacuum chamber connected to the other end of the double tube at the collision point is attached to the axial direction of the vacuum chamber. The cooling gas discharge concave groove extending to and the opening of the cooling gas discharge concave groove is covered with a closing member to form the cooling gas discharge flow path, and both ends of the double pipe at the collision point are formed. A cooling liquid supply groove extending from an opposite collision point side to a collision point side in the axial direction of the vacuum chamber and an end of the cooling liquid supply concave groove on the collision point side, respectively. Portion communicating with the cooling liquid supply groove A cooling liquid discharge concave groove extending from the collision point side to the anti-collision point side in the axial direction of the vacuum chamber is carved so as to be substantially parallel to each other across the partition wall, and the opening of the cooling liquid supply concave groove and cooling are provided. The collision point part cooling device for an electron / positron beam collision type accelerator according to claim 1, wherein the cooling liquid flow path is constituted by covering an opening of the liquid discharge concave groove with a closing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23254395A JPH0982497A (en) | 1995-09-11 | 1995-09-11 | Collision point cooling system for electron / positron beam collider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23254395A JPH0982497A (en) | 1995-09-11 | 1995-09-11 | Collision point cooling system for electron / positron beam collider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0982497A true JPH0982497A (en) | 1997-03-28 |
Family
ID=16940977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23254395A Pending JPH0982497A (en) | 1995-09-11 | 1995-09-11 | Collision point cooling system for electron / positron beam collider |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0982497A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020145158A (en) * | 2019-03-08 | 2020-09-10 | 住友重機械工業株式会社 | Neutron generation device and neutron generation method |
| JP2023117840A (en) * | 2022-02-14 | 2023-08-24 | 三菱重工機械システム株式会社 | liquid container |
| CN116828689A (en) * | 2023-06-26 | 2023-09-29 | 中国科学院上海高等研究院 | Ceramic vacuum chamber of nonlinear impact magnet and manufacturing method thereof |
-
1995
- 1995-09-11 JP JP23254395A patent/JPH0982497A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020145158A (en) * | 2019-03-08 | 2020-09-10 | 住友重機械工業株式会社 | Neutron generation device and neutron generation method |
| JP2023117840A (en) * | 2022-02-14 | 2023-08-24 | 三菱重工機械システム株式会社 | liquid container |
| CN116828689A (en) * | 2023-06-26 | 2023-09-29 | 中国科学院上海高等研究院 | Ceramic vacuum chamber of nonlinear impact magnet and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7140771B2 (en) | X-ray producing device with reduced shielding | |
| GB1587986A (en) | Compact irradiation apparatus using a linear chargedparticle accelerator | |
| EP1774537B1 (en) | Forced convection target assembly | |
| EP2731409A1 (en) | Accelerating structure | |
| US5849252A (en) | Charged particle accelerator apparatus and electronic sterilizer apparatus using the same | |
| JP2005050646A (en) | High frequency electron gun | |
| US5821693A (en) | Electron beam tubes having a unitary envelope having stepped inner surface | |
| JPH10189297A (en) | Vacuum chamber for accelerator | |
| JP2011165543A (en) | X-ray generating apparatus | |
| JPH0817600A (en) | Synchrotron absorber | |
| US20190272970A1 (en) | Static collimator for reducing spot size of an electron beam | |
| JPH07220900A (en) | Absorber device for structure conversion unit | |
| JPH10189300A (en) | Absorber device | |
| JPH0974000A (en) | Absorber device | |
| JPH065394A (en) | Coupling structure for coolant path of particle accelerator | |
| JPH09204993A (en) | Vacuum chamber for particle accelerator | |
| JPH09204991A (en) | Deflection duct | |
| JP3852526B2 (en) | Charged particle storage device | |
| JPH1116700A (en) | Vacuum chamber for accelerator | |
| JP4261391B2 (en) | Electron beam cooling device and ion ring | |
| JP4061248B2 (en) | Vacuum chamber for particle accelerator | |
| JPH08250297A (en) | Vacuum chamber | |
| JPH04368753A (en) | Gyrotron tube | |
| JP2000323300A (en) | Absorber arrangement structure | |
| JPH08293400A (en) | Storage ring absorber |