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1. 发明授权

US08262971B2 Method of centralizing and retaining molded end coils in magnet formers 有权
标题翻译：将成型端部线圈集中和保持在磁铁形成器中的方法
公开(公告)号：US08262971B2
公开(公告)日：2012-09-11
申请号：US11941721
申请日：2007-11-16
申请人： Simon James Calvert
发明人： Simon James Calvert
IPC分类号： B27N3/10 , B29C45/14 , H02K15/12 , B28B7/30 , B28B7/32 , H01F1/00 , H01F5/00
CPC分类号： G01R33/3815 , G01R33/3802 , H01F6/00 , H01F41/048
摘要： A method for centralising and retaining a molded end coil (20) in a magnet former (12) which includes an oversleeve (24) for retaining the end coil in position, the radially outer (A2) surface of the end coil being of lesser diameter than the radially inner surface of the oversleeve. The method comprises the steps of: (a) centralising the end coil (20) on the former (12) by passing a spigot (28) through the bore of the end coil and into the end of the bore of the former to locate the end coil within the oversleeve and to leave a gap (30) between the radially outer surface of the end coil and the oversleeve; (b) retaining the end coil in position against an axially adjacent surface of the former by applying an axial force to the end coil in the direction of the former; (c) filling the gap with a hardening material (42) along at least part of its axial length; (d) causing or allowing the hardening material to harden, thereby to securely and accurately retain the end coil onto the former; and (e) removing the spigot.
摘要翻译：一种用于将模制端部线圈（20）集中并保持在磁体成形器（12）中的方法，该磁体成形器（12）包括用于将端部线圈保持在适当位置的套筒（24），端部线圈的径向外部（A2）表面具有较小直径比内衬的径向内表面。该方法包括以下步骤：（a）通过将插口（28）穿过端部线圈的孔并进入前者的孔的端部，将端部线圈（20）集中在前者（12）上，以定位并且在端部线圈的径向外表面和过滤器之间留下间隙（30）; （b）通过沿着前者的方向向端部线圈施加轴向力，将端部线圈保持在相对于前者的轴向相邻表面的位置; （c）沿其轴向长度的至少一部分用硬化材料（42）填充间隙; （d）引起或允许硬化材料硬化，从而牢固且准确地将端部线圈保持在前者上; 和（e）移除插口。

2. 发明申请

US20120202697A1 STIFFENED GRADIENT COIL 审中-公开
标题翻译：强化梯度线圈
公开(公告)号：US20120202697A1
公开(公告)日：2012-08-09
申请号：US13368641
申请日：2012-02-08
申请人： Simon James Calvert
发明人： Simon James Calvert
IPC分类号： H01F6/06 , H01F6/04 , G01R33/3815
CPC分类号： G01R33/3858 , G01R33/3815 , G01R33/3854
摘要： In a cylindrical superconducting magnet system for magnetic resonance imaging, primary superconducting coils are positioned within an outer vacuum chamber. A thermal radiation shield surrounds the primary superconducting coils. A gradient coil assembly is axially aligned with the primary superconducting coils. A mechanical support assembly is radially positioned outside of the primary superconducting coils and is mechanically attached to the gradient coil assembly by mechanical attachments which pass through through-holes through the outer vacuum chamber and the thermal radiation shield.
摘要翻译：在用于磁共振成像的圆柱形超导磁体系统中，初级超导线圈位于外部真空室内。热辐射屏蔽围绕初级超导线圈。梯度线圈组件与初级超导线圈轴向对准。机械支撑组件径向地定位在主超导线圈的外部，并且通过穿过穿过外部真空室和热辐射屏蔽的通孔的机械附件机械附接到梯度线圈组件。

3. 发明授权

US08106736B2 Solenoidal magnets having supported outer coils 有权
标题翻译：具有支撑外圈的电磁铁磁体
公开(公告)号：US08106736B2
公开(公告)日：2012-01-31
申请号：US13115336
申请日：2011-05-25
申请人： Simon James Calvert
发明人： Simon James Calvert
IPC分类号： H01F5/00 , H01F6/00
CPC分类号： G01R33/3802 , G01R33/3815 , G01R33/421 , H01F6/06 , H01F27/306 , H01F27/327 , H01F41/048 , H01F41/127
摘要： In a solenoidal electromagnet arrangement for a magnetic resonance imaging system, annular inner coils and annular end coils are provided, all concentrically aligned about an axis, the end coils being placed at axial extremities, axially outside of the inner coils. A pair of annular outer coils are provided concentrically aligned about the axis. An arrangement is provided retaining the pair of outer coils against an axial force urging the outer coils away from one another. The arrangement comprises strap elements which extend around a radially inner surface, a radially outer surface and an axially outer surface of each outer coil in certain circumferential locations. Each strap element on one of the outer coils is linked to a corresponding strap element on the other outer coil of the pair by a tensile member.
摘要翻译：在用于磁共振成像系统的螺线管电磁铁装置中，提供环形内部线圈和环形端部线圈，所述环形内部线圈和环形端部线圈围绕轴线同心对齐，端部线圈被放置在轴向在内部线圈外侧的轴向端部处。一对环形外部线圈围绕轴线同心地设置。提供了一种布置，其保持一对外部线圈抵抗促使外部线圈彼此远离的轴向力。该装置包括在某些圆周位置处围绕每个外部线圈的径向内表面，径向外表面和轴向外表面延伸的带元件。一个外部线圈上的每个带元件通过拉伸构件连接到该对的另一个外部线圈上的对应的带元件。

4. 发明授权

US07883656B2 Wound in-situ moulded magnet end coil and method for production thereof 有权
标题翻译：绕线原位成型磁体线圈及其制造方法
公开(公告)号：US07883656B2
公开(公告)日：2011-02-08
申请号：US11950742
申请日：2007-12-05
申请人： Simon James Calvert
发明人： Simon James Calvert
IPC分类号： B32B37/00
CPC分类号： G01R33/3815 , G01R33/3802 , G01R33/3806 , H01F6/00 , H01F41/048
摘要： A method for manufacturing a solenoidal magnet having one or more coils wound onto a cylindrical former, and an annular end coil (20), mounted onto an end of the former such that no part of the former is present on the radially inner (A1) or axially outer (B2) sides of the end coil. The method comprises the steps of: (a) locating a temporary annular mold (22) on the end of the former; (b) retaining (32, 34, 36, 38) the temporary mould in position on the end of the former; (c) providing an interface release material (42) on an end surface of the former, exposed to the interior of the temporary mold; (d) winding wire to form the end coil into the cavity formed by the interior of the mold and the an interface release material (42) on the end surface of the former; (e) providing a step feature (46) over an axially inner part of a radially outer surface of the end coil; (f) providing a retaining strip (48), extending from the former over a radially outer surface of the step feature, and at least partially over an axially outer surface of the step feature, said retaining strip being held onto the former by retaining means (50), so as to retain the step feature in axial compression; (g) impregnating the end coil and the step feature with a hardening liquid impregnating material; and (h) once the impregnating material has hardened, removing the temporary annular mold.
摘要翻译：一种用于制造具有缠绕在圆柱形成形器上的一个或多个线圈的螺线管磁体的方法，以及安装在前者的端部上的环形端部线圈（20），使得前者的一部分不存在于径向内部（A1）上，或端部线圈的轴向外侧（B2）侧。该方法包括以下步骤：（a）将临时环形模具（22）定位在前者的端部上; （b）保留（32,34,36,38）在前者末端的临时模具; （c）在前者的端表面上提供暴露于临时模具内部的界面释放材料（42）; （d）缠绕线以将端部线圈形成到由模具内部形成的空腔中，以及在前者的端表面上的界面释放材料（42）; （e）在端部线圈的径向外表面的轴向内部部分上提供台阶特征（46）; （f）提供保持条（48），所述保持条（48）从所述成形器在所述台阶特征的径向外表面上延伸并且至少部分地在所述台阶特征的轴向外表面上延伸，所述保持条通过保持装置（50），以便在轴向压缩中保持台阶特征; （g）用硬化液体浸渍材料浸渍端部线圈和台阶部件; 和（h）一旦浸渍材料硬化，则移除临时环形模具。

5. 发明授权

US10036788B2 Force-compensated gradient coil 有权
公开(公告)号：US10036788B2
公开(公告)日：2018-07-31
申请号：US14352771
申请日：2012-11-19
申请人： Simon James Calvert
发明人： Simon James Calvert
IPC分类号： G01R33/3815 , G01R33/385
CPC分类号： G01R33/3815 , G01R33/3854
摘要： A cylindrical superconducting magnet system for use in magnetic resonance imaging has axially aligned primary superconducting coils that are situated within an outer vacuum chamber (OVC). A thermal radiation shield surrounds the primary superconducting coils within the OVC. A primary gradient coil assembly is axially aligned with the primary superconducting coils and is situated radially within the primary superconducting coils. The cylindrical superconducting magnetic system also includes a secondary gradient coil assembly, that is radially situated outside of the primary superconducting coils and that is mechanically attached to the primary gradient coil assembly.

6. 发明授权

US09669237B2 Combined MRI and radiation therapy equipment 有权
公开(公告)号：US09669237B2
公开(公告)日：2017-06-06
申请号：US14112741
申请日：2012-03-08
申请人： Simon James Calvert
发明人： Simon James Calvert
IPC分类号： A61B5/055 , A61N5/10 , G01R33/3815 , G01R33/48 , G01R33/38
CPC分类号： A61N5/1039 , A61B5/055 , A61B2562/17 , A61N5/1077 , A61N5/1081 , A61N5/1082 , A61N2005/1055 , A61N2005/1094 , G01R33/3804 , G01R33/3815 , G01R33/4808
摘要： In a combined MRI and radiation therapy system, a magnet structure and radiation therapy equipment are provided. The magnet structure comprises a single substantially cylindrical field coil structure comprising a number of superconducting coils joined by a support structure and extending axially of a central region. An outer vacuum chamber encloses the field coil structure in an evacuated volume. A cooling arrangement comprising cooling tubes is in thermal contact with the superconducting coils and receives a cryogen flowing through the cooling tubes. The radiation therapy equipment comprises a gamma radiation source rotatable about an axis of the field coil structure to direct a radiation beam substantially radially through the field coil structure. Parts of the field coil structure and the outer vacuum chamber are transparent to radiation emitted by the gamma radiation source whereby the radiation beam is directed through the field coil structure and the outer vacuum chamber without substantial interference.

7. 发明授权

US09536659B2 Solenoidal magnets composed of multiple axially aligned coils 有权
标题翻译：由多个轴向对齐的线圈组成的电磁体磁体
公开(公告)号：US09536659B2
公开(公告)日：2017-01-03
申请号：US13700038
申请日：2011-05-23
申请人： Simon James Calvert , Russell Peter Gore
发明人： Simon James Calvert , Russell Peter Gore
IPC分类号： G01V3/00 , H01F41/00 , G01R33/38 , G01R33/381 , H01F5/02 , H01F6/06 , H01F41/12 , H01F5/06 , H01F27/30 , H01F27/32 , H01F41/04 , G01R33/3815
CPC分类号： H01F41/005 , G01R33/3802 , G01R33/381 , G01R33/3815 , H01F5/02 , H01F5/06 , H01F6/06 , H01F27/303 , H01F27/327 , H01F41/048 , H01F41/127 , Y10T29/4902 , Y10T29/49071
摘要： A magnet assembly has a number of axially-aligned coils, the radial mid-point of each coil being axially-aligned with a portion of a radial extent of an adjacent coil in the assembly. Compression blocks are provided between adjacent coils at circumferential intervals, to retain the coils in fixed relative positions.
摘要翻译：磁体组件具有多个轴向对齐的线圈，每个线圈的径向中点与组件中相邻线圈的径向范围的一部分轴向对准。在相邻线圈之间以周向间隔设置压缩块，以将线圈保持在固定的相对位置。

8. 发明申请

US20140107468A1 COMBINED MRI AND RADIATION THERAPY EQUIPMENT 有权
标题翻译：组合MRI和放射治疗设备
公开(公告)号：US20140107468A1
公开(公告)日：2014-04-17
申请号：US14112741
申请日：2012-03-08
申请人： Simon James Calvert
发明人： Simon James Calvert
IPC分类号： G01R33/48 , A61N5/10
CPC分类号： A61N5/1039 , A61B5/055 , A61B2562/17 , A61N5/1077 , A61N5/1081 , A61N5/1082 , A61N2005/1055 , A61N2005/1094 , G01R33/3804 , G01R33/3815 , G01R33/4808
摘要： In a combined MRI and radiation therapy system, a magnet structure and radiation therapy equipment are provided. The magnet structure comprises a single substantially cylindrical field coil structure comprising a number of superconducting coils joined by a support structure and extending axially of a central region. An outer vacuum chamber encloses the field coil structure in an evacuated volume. A cooling arrangement comprising cooling tubes is in thermal contact with the superconducting coils and receives a cryogen flowing through the cooling tubes. The radiation therapy equipment comprises a gamma radiation source rotatable about an axis of the field coil structure to direct a radiation beam substantially radially through the field coil structure. Parts of the field coil structure and the outer vacuum chamber are transparent to radiation emitted by the gamma radiation source whereby the radiation beam is directed through the field coil structure and the outer vacuum chamber without substantial interference.
摘要翻译：在组合MRI和放射治疗系统中，提供磁体结构和放射治疗设备。磁体结构包括单个基本圆柱形的场线圈结构，其包括多个通过支撑结构连接并延伸到中心区域的超导线圈。外部真空室将励磁线圈结构包围在抽空的体积中。包括冷却管的冷却装置与超导线圈热接触并且接收流过冷却管的冷冻剂。辐射治疗设备包括可围绕磁场线圈结构的轴线旋转的伽马辐射源，以将辐射束基本上径向引导通过磁场线圈结构。场线圈结构和外部真空室的部分对于由γ辐射源发射的辐射是透明的，由此辐射束被引导通过场线圈结构和外部真空室而没有实质的干扰。

9. 发明申请

US20090101325A1 METHOD AND APPARATUS FOR COOLING SUPERCONDUCTIVE JOINTS 有权
标题翻译：冷却超导型接头的方法和装置
公开(公告)号：US20090101325A1
公开(公告)日：2009-04-23
申请号：US12252484
申请日：2008-10-16
申请人： Neil John Belton , Simon James Calvert , Raymond Hornsby , Marcel Jan Marie Kruip
发明人： Neil John Belton , Simon James Calvert , Raymond Hornsby , Marcel Jan Marie Kruip
IPC分类号： F28F7/00
CPC分类号： H01R9/11 , H01R4/68
摘要： In a method and apparatus for joining a number of superconductive cables to establish electrical connection therebetween, a cup-like member having a base, a sidewall, and an opening to receive electrically conductive ends of said cables is provided. The base of the cup-like member is attached to a holder device. The holder device is attached to a cryogenically cooled surface. The ends of the superconductive cables are connected together within the cup-like member.
摘要翻译：在一种用于连接多根超导电缆以在其之间建立电连接的方法和装置中，提供了具有基座，侧壁和用于接纳所述电缆的导电端部的开口的杯状构件。杯状构件的基部附接到保持器装置。支架装置连接到低温冷却表面。超导电缆的端部在杯状构件内连接在一起。

10. 发明申请

US20140274721A1 FORCE-COMPENSATED GRADIENT COIL 审中-公开
标题翻译：强制性梯级线圈
公开(公告)号：US20140274721A1
公开(公告)日：2014-09-18
申请号：US14352771
申请日：2012-11-19
申请人： Simon James Calvert
发明人： Simon James Calvert
IPC分类号： G01R33/3815
CPC分类号： G01R33/3815 , G01R33/3854
摘要： A cylindrical superconducting magnet system for use in magnetic resonance imaging has axially aligned primary superconducting coils that are situated within an outer vacuum chamber (OVC). A thermal radiation shield surrounds the primary superconducting coils within the OVC. A primary gradient coil assembly is axially aligned with the primary superconducting coils and is situated radially within the primary superconducting coils. The cylindrical superconducting magnetic system also includes a secondary gradient coil assembly, that is radially situated outside of the primary superconducting coils and that is mechanically attached to the primary gradient coil assembly.
摘要翻译：用于磁共振成像的圆柱形超导磁体系统具有位于外部真空室（OVC）内的轴向对准的初级超导线圈。一个热辐射屏蔽围绕OVC内的主要超导线圈。主梯度线圈组件与初级超导线圈轴向对准并且位于主要超导线圈的径向内。圆柱形超导磁体系统还包括次级梯度线圈组件，其径向地位于初级超导线圈的外部，并且机械地连接到主梯度线圈组件。

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