JPH02191305A - Superconductive magnet - Google Patents
Superconductive magnetInfo
- Publication number
- JPH02191305A JPH02191305A JP1067589A JP1067589A JPH02191305A JP H02191305 A JPH02191305 A JP H02191305A JP 1067589 A JP1067589 A JP 1067589A JP 1067589 A JP1067589 A JP 1067589A JP H02191305 A JPH02191305 A JP H02191305A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- magnetic field
- current distribution
- type current
- superconducting
- 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
- 238000004804 winding Methods 0.000 claims abstract description 11
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000005469 synchrotron radiation Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Landscapes
- Particle Accelerators (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、電子蓄積リングにおけるビーム偏向用の超
伝導マグネットに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a superconducting magnet for beam deflection in an electron storage ring.
［従来の技術］
電子蓄積リングの真空ダクト内を周回する電子ビームに
対し偏向電磁石で偏向させるとき、ビーム軌道の接線方
向に、赤外線からＸ線の領域にわたる放射光が放出され
る。この放射光は、極めて強力でかつ指向性が良いこと
から、集積回路における微細パターンの焼き付は等の産
業用途での利用価値が高い。[Prior Art] When an electron beam circulating in a vacuum duct of an electron storage ring is deflected by a deflecting electromagnet, synchrotron radiation ranging from infrared to X-ray is emitted in the tangential direction of the beam trajectory. Since this synchrotron radiation is extremely powerful and has good directivity, it has high utility value in industrial applications such as printing fine patterns on integrated circuits.
このような電子蓄積リングにおける偏向用マグネットに
超電導マグネットを用いた例としては、特公昭６１−２
２７４００号公報に開示されていて、この種の装置では
、超電導マグネットによる発生磁場に所定の勾配が得ら
れるように、放射先取出口のスリット幅及び超電導マグ
ネットの巻線“の配列を調整している。発生磁場の勾配
れは、で定義され、ｒｏはビームの軌道半径、Ｂは磁束
密度である。An example of using a superconducting magnet as a deflection magnet in such an electron storage ring is the Japanese Patent Publication No. 61-2
27400, and in this type of device, the slit width of the radiation outlet and the arrangement of the windings of the superconducting magnet are adjusted so that a predetermined gradient is obtained in the magnetic field generated by the superconducting magnet. The gradient of the generated magnetic field is defined by , where ro is the orbital radius of the beam and B is the magnetic flux density.
［発明が解決しようとする課題］
従って、−旦、超電導マグネットの巻線を所望の配列に
形成してしまえば、上記勾装置の値は固定され、任意の
値に調整できないといった問題点があった。[Problems to be Solved by the Invention] Therefore, once the windings of the superconducting magnet are formed in a desired arrangement, the value of the gradient device is fixed and cannot be adjusted to an arbitrary value. Ta.
この発明は、上述した問題点をなくすためになされたも
のであり、発生磁場の勾配を調整可能とした超電導マグ
ネットを提供することを目的とする。This invention was made to eliminate the above-mentioned problems, and an object thereof is to provide a superconducting magnet in which the gradient of the generated magnetic field can be adjusted.
［課題を解決するための手段］
この発明の超電導マグネットは、電子蓄積リングに用い
るビーム偏向用の超電導マグネットであって、Ｃ０５Ｏ
形電流分布の巻線配列の超電導コイルと、ｃｏｓ２θ型
電流分布の巻線配列の超電導コイルとを組み合わせたこ
とを特徴とする。[Means for Solving the Problems] A superconducting magnet of the present invention is a superconducting magnet for beam deflection used in an electron storage ring, and is a superconducting magnet for beam deflection used in an electron storage ring.
The present invention is characterized by a combination of a superconducting coil with a winding arrangement having a cos2θ type current distribution and a superconducting coil having a winding arrangement with a cos2θ type current distribution.
［作用］
第１図に示すように、ｃｏｓθ形電流分布の二極コイル
ｌと、ｃｏｓ２θ形電流分布の超電導イル２との２組の
コイルを、電子蓄積リングのビームダクト３の外周に設
けたことにより、発生磁場の調整が容易となり、請求項
（２）に記載のごとく、各コイル！、２への通電電流を
個別に、もしくは一方のみを制御することにより、ビー
ムダクト３内には所望の勾配になる磁場分布が得られる
。尚、コイルの形状から、第１図では二極コイル１を四
極コイル２の外側に配したが、特にこの構造に限定され
ない。[Function] As shown in Fig. 1, two sets of coils, a bipolar coil 1 with a cos θ type current distribution and a superconducting coil 2 with a cos 2 θ type current distribution, are provided on the outer periphery of the beam duct 3 of the electron storage ring. This makes it easy to adjust the generated magnetic field, and as described in claim (2), each coil! , 2 individually or by controlling only one of them, a magnetic field distribution having a desired gradient can be obtained in the beam duct 3. Although the two-pole coil 1 is arranged outside the four-pole coil 2 in FIG. 1 due to the shape of the coil, the present invention is not particularly limited to this structure.
［実施例］
以下この発明の一実施例を第２図及び第３図を参照して
説明する。第２図は、電子蓄積リングにおける偏向マグ
ネットを切断してその端面より眺めた断面図、第３図は
、電子蓄積リングにおける偏向マグネットの周方向に沿
って切断したときの断面図である。[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. FIG. 2 is a cross-sectional view of the deflection magnet in the electron storage ring as seen from its end surface, and FIG. 3 is a cross-sectional view of the deflection magnet in the electron storage ring taken along the circumferential direction.
３は、電子蓄積リングにおけるビームダクトを示してい
る。四極コイル２（２ａ、２ｂ、２ｃ、２ｄ）は、ビー
ムダクト３の外周に設けられた絶縁物よりなる巻芯４に
巻回され、更に、この四極コイル２の外周には、コイル
冷却用の冷却チャンネル５を挟んで、絶縁物よりなる巻
芯６と７とが２層に設けられ、それぞれの巻芯６．７に
二極コイルｌが巻回される。その際、二極コイルｌと、
四極コイル２とは第１図のように、同心で各々の水平レ
ベルが同じになるように設けられる。二極コイルｌの外
周には更に冷却チャンネル８が設けられ、そして、最後
に、二極及び四極のコイル１．２の電磁力による線材の
変形を防止するために、冷却チャンネル８の外周を包囲
するように、断面が半円状の補強カラー９ ａ、 ９
ｂが設けられ、双方の補強カラー９ ａ、 ９ ｂは、
ボルト及びナツト１０により一体となるように締め付け
られる。尚、補強カラー９ ａ、 ９ ｂに複数に設け
られた小穴１１は、冷却チャンネル８内の冷媒のコンダ
クタンスを良くするために設けられたものである。又、
第３図におけるビームボート１２はＳＯＲ先取出口であ
り、Ｑは、ビーム軌道を示している。3 shows the beam duct in the electron storage ring. The quadrupole coils 2 (2a, 2b, 2c, 2d) are wound around a winding core 4 made of an insulator provided on the outer periphery of the beam duct 3, and furthermore, a coil cooling coil is provided on the outer periphery of the quadrupole coil 2. Winding cores 6 and 7 made of an insulating material are provided in two layers with a cooling channel 5 in between, and a bipolar coil 1 is wound around each winding core 6.7. At that time, the bipolar coil l,
As shown in FIG. 1, the quadrupole coils 2 are installed concentrically and at the same horizontal level. A cooling channel 8 is further provided on the outer circumference of the bipolar coil l, and finally, the outer circumference of the cooling channel 8 is surrounded to prevent deformation of the wire due to the electromagnetic force of the bipolar and quadrupolar coils 1.2. Reinforcement collars 9a, 9 with semicircular cross sections
b is provided, and both reinforcing collars 9 a, 9 b are
They are tightened together with bolts and nuts 10. The plurality of small holes 11 provided in the reinforcing collars 9 a and 9 b are provided to improve the conductance of the refrigerant within the cooling channel 8 . or,
The beam boat 12 in FIG. 3 is the SOR prefetching outlet, and Q indicates the beam trajectory.
上記二極コイル１と、四極コイル２とに対し、それぞれ
個別の電源（不図示）を備え、各コイル１゜２への通電
電流が個別に制御される。Separate power supplies (not shown) are provided for the two-pole coil 1 and the four-pole coil 2, and the current flowing to each coil 1.degree. 2 is individually controlled.
このように、２組のコイル１．２への通電電流を制御す
ることにより、ビームダクト３内に合成磁場により所望
の勾装置を得ることができろ。又、超電導マグネットの
寸法誤差等に伴う磁場分布の誤差を適切に補正すること
らできる。In this way, by controlling the currents flowing to the two sets of coils 1.2, a desired gradient device can be obtained within the beam duct 3 by means of a combined magnetic field. Furthermore, errors in the magnetic field distribution due to dimensional errors of the superconducting magnet can be appropriately corrected.
［発明の効果コ
以上説明したように、この発明は、２組のコイルを設け
たので、発生磁場の調整が容易となり、例えば、少なく
とも一方のコイルへの通ｆｆ１７［！流制御することに
より、ビームダクト内に所望の合成磁場による勾装置を
得ることができ、超電導マグネットの寸法等に伴う磁場
分布の誤差を適切にＮｌｉ正することができる。[Effects of the Invention] As explained above, in the present invention, since two sets of coils are provided, it is easy to adjust the generated magnetic field. By controlling the current, a gradient device with a desired composite magnetic field can be obtained in the beam duct, and errors in the magnetic field distribution due to the dimensions of the superconducting magnet can be appropriately corrected by Nli.
第１図はこの発明の超電導マグネットの構成を示すため
の断面図、第２図は、この発明の一実施例を示す超電導
マグネットを、電子蓄積リングにおける偏向マグネット
を切断して端面から眺めた断面図、第３図は、第２図に
おける超電導マグネットを、電子蓄積リングの周方向に
切断したときの断面図である。
ｌ・・・二極コイル、２・・・四極コイル、３・・・ビ
ームダクト、
６．７・・・巻芯、
８・・・冷却チャンネ
ル、
ト。
９ ａ、 ９ ｂ・・・補強カラー、
ボルト及びナラFIG. 1 is a cross-sectional view showing the structure of a superconducting magnet of the present invention, and FIG. 2 is a cross-sectional view of a superconducting magnet showing an embodiment of the present invention, as seen from the end surface of a deflection magnet in an electron storage ring. 3 are cross-sectional views of the superconducting magnet shown in FIG. 2 taken in the circumferential direction of the electron storage ring. l... Two-pole coil, 2... Quadrupole coil, 3... Beam duct, 6.7... Winding core, 8... Cooling channel, G. 9 a, 9 b...Reinforcement collar, bolt and oak
Claims (3)
グネットであって、ｃｏｓθ形電流分布の巻線配列の超
電導コイルと、ｃｏｓ２θ型電流分布の巻線配列の超電
導コイルとを組み合わせたことを特徴とする超電導マグ
ネット。(1) A superconducting magnet for beam deflection used in an electron storage ring, characterized by a combination of a superconducting coil with a winding arrangement having a cos θ type current distribution and a superconducting coil having a winding arrangement having a cos 2 θ type current distribution. superconducting magnet.
少なくとも一方の超電導コイルへの通電電流値を変える
ことにより、所望の磁場分布を得る請求項（１）記載の
超電導マグネット。(2) Assuming two power sources for the two superconducting coils above,
The superconducting magnet according to claim 1, wherein a desired magnetic field distribution is obtained by changing the value of the current flowing to at least one of the superconducting coils.
θ形電流分布の超電導コイルの内側に配した請求項（１
）もしくは（２）記載の超電導マグネット。(3) A superconducting coil with cos 2θ type current distribution, cos
Claim (1) disposed inside a superconducting coil with a θ-shaped current distribution
) or the superconducting magnet described in (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1010675A JPH0782933B2 (en) | 1989-01-19 | 1989-01-19 | Superconducting magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1010675A JPH0782933B2 (en) | 1989-01-19 | 1989-01-19 | Superconducting magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02191305A true JPH02191305A (en) | 1990-07-27 |
| JPH0782933B2 JPH0782933B2 (en) | 1995-09-06 |
Family
ID=11756835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1010675A Expired - Lifetime JPH0782933B2 (en) | 1989-01-19 | 1989-01-19 | Superconducting magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0782933B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015153733A (en) * | 2014-02-19 | 2015-08-24 | 株式会社東芝 | Superconducting magnet device and charged particle accelerator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60136148A (en) * | 1983-12-23 | 1985-07-19 | Shimadzu Corp | Magnetic field scanning type mass spectrometer |
| JPS61227400A (en) * | 1985-03-28 | 1986-10-09 | ケルンフオルシユンクスツエントルム・カールスルーエ・ゲーエムベーハー | Superconductive magnet system for particle accelerator of synchrotron radiation source |
-
1989
- 1989-01-19 JP JP1010675A patent/JPH0782933B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60136148A (en) * | 1983-12-23 | 1985-07-19 | Shimadzu Corp | Magnetic field scanning type mass spectrometer |
| JPS61227400A (en) * | 1985-03-28 | 1986-10-09 | ケルンフオルシユンクスツエントルム・カールスルーエ・ゲーエムベーハー | Superconductive magnet system for particle accelerator of synchrotron radiation source |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015153733A (en) * | 2014-02-19 | 2015-08-24 | 株式会社東芝 | Superconducting magnet device and charged particle accelerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0782933B2 (en) | 1995-09-06 |
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