JP4703408B2 - Superconducting magnet system - Google Patents

Superconducting magnet system Download PDF

Info

Publication number
JP4703408B2
JP4703408B2 JP2006006322A JP2006006322A JP4703408B2 JP 4703408 B2 JP4703408 B2 JP 4703408B2 JP 2006006322 A JP2006006322 A JP 2006006322A JP 2006006322 A JP2006006322 A JP 2006006322A JP 4703408 B2 JP4703408 B2 JP 4703408B2
Authority
JP
Japan
Prior art keywords
flange
shield
winding frame
coil winding
container
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.)
Active
Application number
JP2006006322A
Other languages
Japanese (ja)
Other versions
JP2007189082A (en
Inventor
修一 中川
一 田村
隆博 松本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2006006322A priority Critical patent/JP4703408B2/en
Publication of JP2007189082A publication Critical patent/JP2007189082A/en
Application granted granted Critical
Publication of JP4703408B2 publication Critical patent/JP4703408B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Description

この発明は超電導電磁石装置に関するものである。   The present invention relates to a superconducting electromagnet apparatus.

医療用の断層撮像装置（ＭＲＩ装置）の静磁場発生源として水平円筒ソレノイド型の超電導電磁石装置が使用されている。この装置では患者の開放感と検査技師の患者へのアクセス性向上のため、水平円筒ソレノイド型ＭＲＩ装置の短尺化が望まれている。（例えば特許文献１参照）。   A horizontal cylindrical solenoid type superconducting electromagnet apparatus is used as a static magnetic field generation source of a medical tomographic imaging apparatus (MRI apparatus). In this apparatus, it is desired to shorten the horizontal cylindrical solenoid type MRI apparatus in order to improve the patient's open feeling and the accessibility of the laboratory technician to the patient. (For example, refer to Patent Document 1).

図５は、特許文献１に開示された従来の水平円筒ソレノイド型超電導電磁石装置の概略構成を示す断面図である。この図に示されるように、ＭＲＩ装置の超電導電磁石装置は超電導主コイル等の収容部となる低温容器１がフランジ部２Ａと外周部２Ｂとからなる円筒状の真空断熱容器２内に収容されている。真空断熱容器２の中心部にはＭＲＩ装置として患者が搬入される空間３が形成されている。   FIG. 5 is a cross-sectional view showing a schematic configuration of a conventional horizontal cylindrical solenoid superconducting electromagnet apparatus disclosed in Patent Document 1. As shown in FIG. As shown in this figure, the superconducting electromagnet apparatus of the MRI apparatus includes a cryogenic container 1 serving as a housing part for a superconducting main coil and the like housed in a cylindrical vacuum heat insulating container 2 comprising a flange part 2A and an outer peripheral part 2B. Yes. A space 3 in which a patient is carried in as an MRI apparatus is formed at the center of the vacuum heat insulating container 2.

低温容器１内には、上記空間３を取り囲むように配設され、主磁場を発生させる超電導主コイル４Ａ、４Ｂ、４Ｃ、４Ｄと、外部への漏洩磁場を低減させるため上記主コイルとは逆極性とされている超電導シールドコイル５Ａ、５Ｂとが設けられると共に、液体ヘリウム６が封入されている。   A superconducting main coil 4A, 4B, 4C, 4D, which is disposed in the cryogenic vessel 1 so as to surround the space 3 and generates a main magnetic field, and is opposite to the main coil in order to reduce the leakage magnetic field to the outside. Polarized superconducting shield coils 5A, 5B are provided, and liquid helium 6 is enclosed.

真空断熱容器２と低温容器１との間には一つまたは複数の輻射熱シールド７が配置されている。図は二つの輻射熱シールドを設けた状態を示している。なお、低温容器１のフランジ部１Ａと、真空断熱容器２の外周部２Ｂとの間には支持材８が設けられ、低温容器１が真空断熱容器２の外周部２Ｂによって支持される構成となっている。   One or a plurality of radiant heat shields 7 are arranged between the vacuum heat insulating container 2 and the cryogenic container 1. The figure shows a state in which two radiant heat shields are provided. A support material 8 is provided between the flange portion 1A of the cryogenic container 1 and the outer peripheral portion 2B of the vacuum heat insulating container 2, and the low temperature container 1 is supported by the outer peripheral portion 2B of the vacuum heat insulating container 2. ing.

特開平８−２１５１７１号公報JP-A-8-215171

図６は、図５の上半分の一部について詳細構成を示す断面図である。この図に示すように、低温容器１は、予めフランジ１Ｃを溶接取り付けした主コイル用巻枠１Ｄに主コイル４Ｃ、４Ｄ等を巻回したものと、予めフランジ１Ａを溶接取り付けしたシールドコイル用巻枠１Ｅにシールドコイル５Ｂ等が巻回されたものとが形成され、主コイル用巻枠１Ｄのフランジ１Ｃとシールドコイル用巻枠１Ｅのフランジ１Ａとをシールドコイル用巻枠１Ｅが主コイル用巻枠１Ｄの外方に位置するように、かつ、フランジ１Ｃと１Ａとを図示のように同一面を形成するように重ねて１Ｆの個所を溶接で固定し、最後に外周部１Ｂをシールドコイル用巻枠１Ｅのフランジ１Ａに１Ｇの個所で溶接固定して形成されている。   6 is a cross-sectional view showing a detailed configuration of a part of the upper half of FIG. As shown in this figure, the cryogenic container 1 has a main coil 4C, 4D, etc. wound around a main coil reel 1D with a flange 1C welded in advance, and a shield coil winding with a flange 1A welded in advance. The shield coil 5B is wound around the frame 1E, and the flange 1C of the main coil reel 1D and the flange 1A of the shield coil reel 1E are connected to the shield coil reel 1E. The flanges 1C and 1A are overlapped so as to form the same surface as shown in the figure so as to be located outside the frame 1D, and the 1F portion is fixed by welding, and finally the outer peripheral portion 1B is used for the shield coil. It is formed by welding and fixing to a flange 1A of the winding frame 1E at a point 1G.

なお、シールドコイル用巻枠１Ｅには液体ヘリウムが通過する孔１Ｈが形成されている。
このような低温容器１の構造は超電導主コイル４Ｄと超電導シールドコイル５Ｂとが真空断熱容器２の中心軸２Ｃ（図５）の軸方向の位置が重なっているため、同一巻枠では巻線作業ができないことに起因している。 The shield coil winding frame 1E has a hole 1H through which liquid helium passes.
Such a structure of the cryogenic container 1 is such that the superconducting main coil 4D and the superconducting shield coil 5B are overlapped in the axial direction of the central axis 2C (FIG. 5) of the vacuum heat insulating container 2, so This is due to not being able to.

その結果、主コイル用巻枠１Ｄとシールドコイル用巻枠１Ｅとの１Ｆにおける溶接作業は、主コイルとシールドコイルの巻回が完了した状態で行なわれるため、溶接熱でシールドコイル５Ｂが焼損しないように溶接個所１Ｆから離れた位置にシールドコイル５Ｂが配置されている。   As a result, the welding operation in 1F of the main coil winding frame 1D and the shield coil winding frame 1E is performed in a state in which the winding of the main coil and the shield coil is completed, so that the shield coil 5B is not burned by the welding heat. Thus, the shield coil 5B is disposed at a position away from the welding location 1F.

低温容器１を支持する支持材８は低温容器１への熱侵入を低減させるため断熱長さを取る必要があることから、フランジ１Ａの外側に固着する必要がある。従って、支持材８を設ける空間が超電導電磁石装置の両側に必要となるため、その分だけ磁石装置の軸方向長さが長くなるという問題点があった。   Since the support material 8 that supports the cryocontainer 1 needs to have a heat insulation length in order to reduce heat intrusion into the cryocontainer 1, it needs to be fixed to the outside of the flange 1A. Therefore, since spaces for providing the support member 8 are required on both sides of the superconducting electromagnet apparatus, the axial length of the magnet apparatus is increased accordingly.

この発明は上記のような問題点に対処するためになされたもので、磁石装置の軸方向長さを短縮することができる超電導電磁石装置を提供することを目的とする。   The present invention has been made to address the above-described problems, and an object of the present invention is to provide a superconducting electromagnet apparatus capable of reducing the axial length of the magnet apparatus.

この発明に係る超電導電磁石装置は、超電導コイルの主コイルを装着し、端部にフランジが形成された円筒状の主コイル巻枠と、上記主コイル巻枠の外周に固定されシールドコイルが装着されると共に、端部にフランジが形成された円筒状のシールドコイル巻枠と、上記シールドコイル巻枠のフランジに装着された外周部とを有し、液体ヘリウムが封入された低温容器、この低温容器を収容し、真空断熱する円筒状の真空断熱容器、上記低温容器と上記真空断熱容器との間に設けられ上記低温容器への輻射熱を低減する円筒状の輻射熱シールド及び上記低温容器のシールドコイル巻枠のフランジと上記真空断熱容器とに跨って設けられ上記低温容器を支持する支持材を備えた超電導電磁石装置において、上記円筒状の真空断熱容器の軸方向に対する上記低温容器の外周部の長さを上記主コイル巻枠の上記軸方向長さより短くし、上記シールドコイル巻枠のフランジを断面Ｌ字形に形成して、その端部をそれぞれ上記低温容器の外周部端部と上記シールドコイル巻枠端部に溶接固定することにより、上記シールドコイル巻枠のフランジと上記輻射熱シールドとの間の隙間を大きくすると共に、上記隙間を上記支持材の設置部として利用するようにしたものである。 The superconducting electromagnet apparatus according to the present invention is equipped with a main coil of a superconducting coil, a cylindrical main coil winding frame having a flange formed at the end, and a shield coil fixed to the outer periphery of the main coil winding frame. A cylindrical shield coil frame having a flange formed at the end, and an outer peripheral part attached to the flange of the shield coil frame, and a cryogenic container filled with liquid helium, the cryogenic container A cylindrical vacuum heat insulation container for vacuum insulation, a cylindrical radiant heat shield provided between the low temperature container and the vacuum heat insulation container to reduce radiant heat to the low temperature container, and a shield coil winding of the low temperature container In a superconducting electromagnet apparatus provided with a support member provided across a flange of a frame and the vacuum heat insulating container to support the cryogenic container, in the axial direction of the cylindrical vacuum heat insulating container The length of the outer peripheral portion of the cryogenic container shorter than the axial length of the main coil bobbin, the flange of the shield coil bobbin to form the L-shaped cross section, each said cryocontainer the end By welding and fixing to the outer peripheral end and the shield coil winding frame end, the gap between the flange of the shield coil winding and the radiant heat shield is increased, and the gap is used as an installation portion for the support material. It is intended to be used.

この発明に係る超電導電磁石装置は上記のように構成され、低温容器の外周部の長さを主コイル巻枠の軸方向長さより短くし、シールドコイル巻枠のフランジと輻射熱シールドとの間の隙間を大きくして、この隙間を支持材の設置部として利用するようにしたため、電磁石装置全体の軸方向長さを短尺化することができる。   The superconducting electromagnet apparatus according to the present invention is configured as described above, wherein the length of the outer peripheral portion of the cryogenic container is shorter than the axial length of the main coil winding frame, and the gap between the flange of the shield coil winding frame and the radiant heat shield Since the gap is used as an installation part for the support material, the axial length of the entire electromagnet device can be shortened.

実施の形態１．
以下、この発明の実施の形態１を図にもとづいて説明する。図１は、実施の形態１による超電導電磁石装置の構成の一部を示す断面図である。この図において、図６と同一または相当部分には同一符号を付して説明を省略する。図６と異なる点は、シールドコイル用巻枠１Ｅの外周部１Ｂの軸方向長さを主コイル用巻枠１Ｄの軸方向長さより短くすると共に、フランジ１Ａを図１において１Ｊで示すように断面Ｌ字形に形成し、その水平部１ＪＡの端部とシールドコイル用巻枠１Ｅの端部とを１Ｋで示すように溶接固定し、垂直部１ＪＢと輻射熱シールド７との間に従来よりも大きな隙間１Ｌを形成した点である。 Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. 1 is a cross-sectional view showing a part of the configuration of a superconducting electromagnet apparatus according to Embodiment 1. FIG. In this figure, the same or corresponding parts as in FIG. 6 differs from FIG. 6 in that the axial length of the outer peripheral portion 1B of the shield coil winding frame 1E is shorter than the axial length of the main coil winding frame 1D, and the flange 1A has a cross section as indicated by 1J in FIG. Formed in an L shape, the end of the horizontal portion 1JA and the end of the shield coil winding frame 1E are welded and fixed as indicated by 1K, and a gap larger than that between the vertical portion 1JB and the radiant heat shield 7 is formed. 1L is formed.

このような構成とすることにより、溶接部１Ｋとシールドコイル５Ｂとの距離を確保した状態で、大きな隙間１Ｌを形成することができるため、支持材８の低温容器１側の固定部８Ａを設けるための十分なスペースを確保することができる。更に、超電導電磁石装置の軸方向長さの短縮が可能となるものである。   By adopting such a configuration, a large gap 1L can be formed in a state in which the distance between the welded portion 1K and the shield coil 5B is secured, and therefore, the fixing portion 8A on the low-temperature container 1 side of the support material 8 is provided. Sufficient space can be secured. Furthermore, the axial length of the superconducting electromagnet apparatus can be shortened.

実施の形態２．
次に、この発明の実施の形態２を図にもとづいて説明する。図２は、実施の形態２による超電導電磁石装置の構成の一部を示す断面図である。この図において、図１と同一または相当部分には同一符号を付して説明を省略する。図１と異なる点は、シールドコイル用巻枠１Ｅのフランジ１ＪのＬ字形状に対応した輻射熱シールド７のフランジ部７Ａを断面Ｌ字形に形成して真空断熱容器２のフランジ２Ａとの間に大きな隙間２Ｄを形成するようにした点である。 Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 2 is a cross-sectional view showing a part of the configuration of the superconducting electromagnet apparatus according to the second embodiment. In this figure, the same or corresponding parts as in FIG. The difference from FIG. 1 is that the flange portion 7A of the radiant heat shield 7 corresponding to the L-shape of the flange 1J of the shield coil winding frame 1E is formed in an L-shaped cross-section, and is large between the flange 2A of the vacuum heat insulating container 2. This is a point where a gap 2D is formed.

このような構成とすることにより、輻射熱シールド７の外周部の軸方向長さを短縮することが可能となり、更に、上述した大きな隙間２Ｄに真空断熱容器２のフランジ２Ａを補強する補強材９を設けることができる。   With such a configuration, the axial length of the outer peripheral portion of the radiant heat shield 7 can be shortened, and the reinforcing material 9 that reinforces the flange 2A of the vacuum heat insulating container 2 in the large gap 2D described above. Can be provided.

真空断熱容器２は支持材８を介して低温容器１を支持していることから、低温容器１の荷重によって変形する恐れがあるため、これを防ぐために真空断熱容器のフランジ２Ａを所定値以上の板厚とする必要があるが、補強材９を設けることにより、フランジ２Ａの板厚を薄くすることができ、超電導電磁石装置の軸方向長さの短縮に寄与し得るものである。   Since the vacuum heat insulating container 2 supports the low temperature container 1 through the support material 8, there is a risk of deformation due to the load of the low temperature container 1, so that the flange 2A of the vacuum heat insulating container is set to a predetermined value or more to prevent this. Although it is necessary to make it plate thickness, by providing the reinforcing material 9, the plate | board thickness of 2A of flanges can be made thin and it can contribute to shortening of the axial direction length of a superconducting electromagnet apparatus.

実施の形態３．
次に、この発明の実施の形態３を図にもとづいて説明する。図３は、実施の形態３による超電導電磁石装置の構成の一部を示す断面図である。この図において、図２と同一または相当部分には同一符号を付して説明を省略する。図２と異なる点は、支持材８の真空断熱容器側端部を補強材９に固定した点である。 Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a cross-sectional view showing a part of the configuration of the superconducting electromagnet apparatus according to the third embodiment. In this figure, the same or corresponding parts as in FIG. The difference from FIG. 2 is that the end of the supporting member 8 on the side of the vacuum heat insulating container is fixed to the reinforcing member 9.

このような構成とすれば、支持材８の真空断熱容器側の固定部を省略することができるため、部品点数が削減され、安価な超電導電磁石装置を提供することができる。   With such a configuration, the fixing part on the vacuum heat insulating container side of the support material 8 can be omitted, so that the number of parts can be reduced and an inexpensive superconducting electromagnet apparatus can be provided.

実施の形態４．
次に、この発明の実施の形態４を図にもとづいて説明する。図４は、実施の形態４による超電導電磁石装置の構成の一部を示す断面図である。この図において、図２と同一または相当部分には同一符号を付して説明を省略する。図２と異なる点は、補強材９を設けることなく、その部分の空間を利用して真空断熱容器２のフランジ２Ａを外周に向かって輻射熱シールドのフランジ部７Ａ側に近づくテーパ面２Ｅとした点である。 Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 4 is a cross-sectional view showing a part of the configuration of the superconducting electromagnet apparatus according to the fourth embodiment. In this figure, the same or corresponding parts as in FIG. The difference from FIG. 2 is that, without providing the reinforcing material 9, the flange 2A of the vacuum heat insulating container 2 is made into a tapered surface 2E that approaches the flange portion 7A side of the radiant heat shield toward the outer periphery using the space of that portion. It is.

このような構成とすることにより、真空断熱容器２の外周部２Ｂの軸方向長さを内周部の軸方向長さより短くすることができ、超電導電磁石装置を小型に形成することが可能となる。   By setting it as such a structure, the axial direction length of the outer peripheral part 2B of the vacuum heat insulation container 2 can be made shorter than the axial direction length of an inner peripheral part, and it becomes possible to form a superconducting electromagnet apparatus small. .

この発明の実施の形態１による超電導電磁石装置の構成の一部を示す断面図である。It is sectional drawing which shows a part of structure of the superconducting electromagnet apparatus by Embodiment 1 of this invention. この発明の実施の形態２による超電導電磁石装置の構成の一部を示す断面図である。It is sectional drawing which shows a part of structure of the superconducting electromagnet apparatus by Embodiment 2 of this invention. この発明の実施の形態３による超電導電磁石装置の構成の一部を示す断面図である。It is sectional drawing which shows a part of structure of the superconducting electromagnet apparatus by Embodiment 3 of this invention. この発明の実施の形態４による超電導電磁石装置の構成の一部を示す断面図である。It is sectional drawing which shows a part of structure of the superconducting electromagnet apparatus by Embodiment 4 of this invention. 従来の水平円筒ソレノイド型超電導電磁石装置の概略構成を示す断面図である。It is sectional drawing which shows schematic structure of the conventional horizontal cylindrical solenoid type | mold superconducting electromagnet apparatus. 図５の上半分の一部について詳細構成を示す断面図である。It is sectional drawing which shows a detailed structure about a part of upper half of FIG.

符号の説明Explanation of symbols

１ 低温容器、 １Ｂ 外周部、 １Ｃ フランジ、 １Ｄ 主コイル用巻枠、
１Ｅ シールドコイル用巻枠、 １Ｆ、１Ｇ、１Ｋ 溶接部、 １Ｈ 孔、
１Ｊ 断面Ｌ字形フランジ、 １Ｌ 隙間、 ２ 真空断熱容器、
２Ａ フランジ、 ２Ｂ 外周部、 ３ 空間、
４Ａ、４Ｂ、４Ｃ、４Ｄ 主コイル、 ５Ａ、５Ｂ シールドコイル、
６ 液体ヘリウム、 ７ 輻射熱シールド、 ８ 支持材、 ８Ａ 固定部、
９ 補強材。 1 cryogenic container, 1B outer periphery, 1C flange, 1D main coil reel,
1E Shield coil reel, 1F, 1G, 1K weld, 1H hole,
1J cross-section L-shaped flange, 1L gap, 2 vacuum insulation container,
2A flange, 2B outer periphery, 3 space,
4A, 4B, 4C, 4D main coil, 5A, 5B shield coil,
6 liquid helium, 7 radiant heat shield, 8 support material, 8A fixing part,
9 Reinforcing material.

Claims (4)

超電導コイルの主コイルを装着し、端部にフランジが形成された円筒状の主コイル巻枠と、上記主コイル巻枠の外周に固定されシールドコイルが装着されると共に、端部にフランジが形成された円筒状のシールドコイル巻枠と、上記シールドコイル巻枠のフランジに装着された外周部とを有し、液体ヘリウムが封入された低温容器、この低温容器を収容し、真空断熱する円筒状の真空断熱容器、上記低温容器と上記真空断熱容器との間に設けられ上記低温容器への輻射熱を低減する円筒状の輻射熱シールド及び上記低温容器のシールドコイル巻枠のフランジと上記真空断熱容器とに跨って設けられ上記低温容器を支持する支持材を備えた超電導電磁石装置において、上記円筒状の真空断熱容器の軸方向に対する上記低温容器の外周部の長さを上記主コイル巻枠の上記軸方向長さより短くし、上記シールドコイル巻枠のフランジを断面Ｌ字形に形成して、その端部をそれぞれ上記低温容器の外周部端部と上記シールドコイル巻枠端部に溶接固定することにより、上記シールドコイル巻枠のフランジと上記輻射熱シールドとの間の隙間を大きくすると共に、上記隙間を上記支持材の設置部として利用することを特徴とする超電導電磁石装置。 The main coil of the superconducting coil is mounted, a cylindrical main coil winding frame with a flange formed at the end, a shield coil is mounted on the outer periphery of the main coil winding frame, and a flange is formed at the end A cylindrical shield coil winding frame and an outer peripheral portion attached to the flange of the shield coil winding frame, a cryogenic container filled with liquid helium, and a cylindrical shape that accommodates the cryocontainer and is vacuum-insulated A vacuum heat insulating container, a cylindrical radiant heat shield provided between the low temperature container and the vacuum heat insulating container to reduce radiant heat to the low temperature container, a flange of a shield coil winding frame of the low temperature container, and the vacuum heat insulating container In a superconducting electromagnet apparatus provided with a support material that is provided across the cryogenic vessel and that supports the cryogenic vessel, the length of the outer peripheral portion of the cryogenic vessel with respect to the axial direction of the cylindrical vacuum insulation vessel Serial shorter than the axial length of the main coil bobbin, the shield flange of the coil bobbin to form the L-shaped cross section, the outer peripheral portion end portion and the shield coil bobbin end of each said cryocontainer the end A superconducting electromagnet apparatus characterized in that the gap between the flange of the shield coil winding frame and the radiant heat shield is increased by welding and fixing to a part, and the gap is used as an installation part for the support material. 超電導コイルの主コイルを装着し、端部にフランジが形成された円筒状の主コイル巻枠と、上記主コイル巻枠の外周に固定されシールドコイルが装着されると共に、端部にフランジが形成された円筒状のシールドコイル巻枠と、上記シールドコイル巻枠のフランジに装着された外周部とを有し、液体ヘリウムが封入された低温容器、この低温容器を収容し、真空断熱する円筒状の真空断熱容器、上記低温容器と上記真空断熱容器との間に設けられ上記低温容器への輻射熱を低減する円筒状の輻射熱シールド及び上記低温容器のシールドコイル巻枠のフランジと上記真空断熱容器とに跨って設けられ上記低温容器を支持する支持材を備えた超電導電磁石装置において、上記円筒状の真空断熱容器の軸方向に対する上記低温容器の外周部の長さを上記主コイル巻枠の上記軸方向長さより短くし、上記シールドコイル巻枠のフランジを断面Ｌ字形に形成すると共に、上記断面Ｌ字形のフランジに対応した上記輻射熱シールドの一部を断面Ｌ字形に形成し、上記輻射熱シールドの断面Ｌ字形に形成した部分と上記真空断熱容器のフランジとの間に上記真空断熱容器のフランジを補強する補強材を設けたことを特徴とする超電導電磁石装置。 The main coil of the superconducting coil is mounted, a cylindrical main coil winding frame with a flange formed at the end, a shield coil is mounted on the outer periphery of the main coil winding frame, and a flange is formed at the end A cylindrical shield coil winding frame and an outer peripheral portion attached to the flange of the shield coil winding frame, a cryogenic container filled with liquid helium, and a cylindrical shape that accommodates the cryocontainer and is vacuum-insulated A vacuum heat insulating container, a cylindrical radiant heat shield provided between the low temperature container and the vacuum heat insulating container to reduce radiant heat to the low temperature container, a flange of a shield coil winding frame of the low temperature container, and the vacuum heat insulating container In a superconducting electromagnet apparatus provided with a support material that is provided across the cryogenic vessel and that supports the cryogenic vessel, the length of the outer peripheral portion of the cryogenic vessel with respect to the axial direction of the cylindrical vacuum insulation vessel The length of the main coil winding frame is shorter than the axial length, the flange of the shield coil winding frame is formed in an L-shaped section, and a part of the radiant heat shield corresponding to the flange of the L-shaped section is formed in an L-shaped section. A superconducting electromagnet apparatus characterized in that a reinforcing material for reinforcing the flange of the vacuum heat insulating container is provided between a portion formed and formed into an L-shaped cross section of the radiation heat shield and the flange of the vacuum heat insulating container . 上記支持材の上記真空断熱容器側端部を上記補強材に固定したことを特徴とする請求項２記載の超電導電磁石装置。 3. The superconducting electromagnet apparatus according to claim 2 , wherein an end portion of the support material on the side of the vacuum heat insulating container is fixed to the reinforcing material. 上記断面Ｌ字形のフランジに対応した上記輻射熱シールドの一部を断面Ｌ字形に形成し、上記輻射熱シールドの断面Ｌ字形に対応した上記真空断熱容器のフランジの一部を外周に向かって上記輻射熱シールド側に近づくテーパ面としたことを特徴とする請求項１記載の超電導電磁石装置。 A part of the radiant heat shield corresponding to the flange having the L-shaped cross section is formed in a L-shaped cross section, and a part of the flange of the vacuum heat insulating container corresponding to the L-shaped cross section of the radiant heat shield is directed toward the outer periphery. The superconducting electromagnet apparatus according to claim 1 , wherein the superconducting electromagnet apparatus is a tapered surface approaching the side.
JP2006006322A 2006-01-13 2006-01-13 Superconducting magnet system Active JP4703408B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006006322A JP4703408B2 (en) 2006-01-13 2006-01-13 Superconducting magnet system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006006322A JP4703408B2 (en) 2006-01-13 2006-01-13 Superconducting magnet system

Publications (2)

Publication Number Publication Date
JP2007189082A JP2007189082A (en) 2007-07-26
JP4703408B2 true JP4703408B2 (en) 2011-06-15

Family

ID=38344032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006006322A Active JP4703408B2 (en) 2006-01-13 2006-01-13 Superconducting magnet system

Country Status (1)

Country Link
JP (1) JP4703408B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5534713B2 (en) 2009-05-20 2014-07-02 三菱電機株式会社 Superconducting magnet
CN102866370B (en) * 2011-07-06 2016-05-11 西门子(深圳)磁共振有限公司 Superconducting magnet apparatus and magnetic resonance imaging system
KR101630616B1 (en) * 2014-10-14 2016-06-15 삼성전자 주식회사 Magnetic resonance imaging apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62199914U (en) * 1986-06-10 1987-12-19
JPH04237105A (en) * 1991-01-22 1992-08-25 Fuji Electric Co Ltd Superconducting electromagnet
JPH07161520A (en) * 1993-12-06 1995-06-23 Mitsubishi Electric Corp Superconducting magnet
JPH08321417A (en) * 1994-07-28 1996-12-03 Oxford Magnet Technol Ltd Superconductive magnet
JP2001224571A (en) * 2000-02-15 2001-08-21 Hitachi Medical Corp Open type superconductive magnetic and magnetic resonance imaging instrument using it
JP2004229853A (en) * 2003-01-30 2004-08-19 Hitachi Ltd Superconducting magnet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62199914U (en) * 1986-06-10 1987-12-19
JPH04237105A (en) * 1991-01-22 1992-08-25 Fuji Electric Co Ltd Superconducting electromagnet
JPH07161520A (en) * 1993-12-06 1995-06-23 Mitsubishi Electric Corp Superconducting magnet
JPH08321417A (en) * 1994-07-28 1996-12-03 Oxford Magnet Technol Ltd Superconductive magnet
JP2001224571A (en) * 2000-02-15 2001-08-21 Hitachi Medical Corp Open type superconductive magnetic and magnetic resonance imaging instrument using it
JP2004229853A (en) * 2003-01-30 2004-08-19 Hitachi Ltd Superconducting magnet

Also Published As

Publication number Publication date
JP2007189082A (en) 2007-07-26

Similar Documents

Publication Publication Date Title
JP4705528B2 (en) Superconducting magnet apparatus and magnetic resonance imaging apparatus
JP5534713B2 (en) Superconducting magnet
US10060996B2 (en) Gradient magnetic field coil device and magnetic resonance imaging device
US7126448B2 (en) Superconducting magnet apparatus and magnetic resonance imaging apparatus using the same
JPH0365975B2 (en)
JP4686588B2 (en) Magnet assembly for magnetic resonance imaging system
JP4703408B2 (en) Superconducting magnet system
JP2000040615A (en) Superconductive magnet for making open structured magnetic resonance image
JP4541092B2 (en) Superconducting magnet device of magnetic resonance imaging system
JP2009172085A (en) Superconductive magnet device, magnetic resonance imaging apparatus using the same, and nuclear magnetic resonance apparatus
JP2005181046A (en) Superconducting magnet device
JP2005144132A (en) Superconductive magnet device and magnetic resonance imaging device using the same
JP2617937B2 (en) Electromagnet device
JP4762225B2 (en) Manufacturing method of superconducting magnet device
JP2006326177A (en) Superconductive magnet device for mri
JP2006261335A (en) Superconducting magnet apparatus
JP2010200794A (en) Magnetic resonance imaging apparatus
JP4661189B2 (en) Superconducting magnet device and MRI apparatus and NMR analyzer equipped with the superconducting magnet device
JP2011194136A (en) Superconducting magnet device and magnetic resonance imaging apparatus
JP4843469B2 (en) Magnetic resonance imaging system
JP4762226B2 (en) Superconducting magnet device
JP2018023407A (en) Magnetic resonance imaging device
JP2011062360A (en) Open type electromagnetic device and magnetic resonance imaging apparatus
JP3990410B2 (en) Superconducting magnet and magnetic resonance imaging apparatus
JP5298056B2 (en) Superconducting magnet apparatus and magnetic resonance imaging apparatus

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080110

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100803

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100826

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110301

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110308

R151 Written notification of patent or utility model registration

Ref document number: 4703408

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250