公开(公告)号：US08860539B2

公开(公告)日：2014-10-14

申请号：US13063875

申请日：2010-08-27

申请人： Dimitrios Sakellariou ,  Cédric Hugon ,  Guy Aubert

发明人： Dimitrios Sakellariou ,  Cédric Hugon ,  Guy Aubert

IPC分类号： H01F3/00 ,  H01F7/00 ,  H01F7/02 ,  G01R33/30 ,  G01R33/383

CPC分类号： G01R33/383 ,  G01R33/307 ,  H01F7/0278

摘要： A magnetized structure that induces in a central area of interest a homogeneous magnetic field of predetermined orientation relative to a longitudinal axis (z) of the structure comprises at least two magnetized rings (110, 120) disposed symmetrically relative to a plane (P) that is perpendicular to the longitudinal axis (z) and that contains the central area of interest, and at least one median annular magnetized structure disposed at least partly between the two magnetized rings (110, 120) and also disposed symmetrically relative to the plane (P) of symmetry, one of the two magnetized rings (110) being magnetized radially relative to the longitudinal axis (z) with divergent magnetization and the other of the two magnetized rings (120) being magnetized radially relative to the longitudinal axis (z) with convergent magnetization, and the median annular magnetized structure being magnetized with an orientation different from that of the magnetization of the two magnetized rings (110, 120). The median annular magnetized structure comprises at least one magnetized ring (150) having a magnetization distribution of orientation that varies as in Halbach dipoles and the first two magnetized rings (110, 120) and the median annular magnetized structure are each divided into individual components in the form of regularly distributed identical sectors.

摘要翻译： 感兴趣的中心区域的磁化结构相对于该结构的纵向轴线（z）具有预定取向的均匀磁场包括相对于平面（P）对称设置的至少两个磁化环（110,120），所述至少两个磁化环 垂直于所述纵向轴线（z）并且包含所述感兴趣的中心区域，以及至少一个中间环形磁化结构，其至少部分地设置在所述两个磁化环（110,120）之间，并且还相对于所述平面（P ）对称，两个磁化环（110）之一相对于纵向轴线（z）径向磁化，具有发散磁化，并且两个磁化环（120）中的另一个相对于纵向轴线（z）径向磁化， 收敛磁化，并且中间环形磁化结构被磁化，其方向不同于两个磁化环（110,120）的磁化强度 ）。 中间环形磁化结构包括至少一个磁化环（150），其具有如Halbach偶极子中变化的取向的磁化分布，并且前两个磁化环（110,120）和中间环形磁化结构各自被分成 定期分发相同部门的形式。

公开(公告)号：US08773230B2

公开(公告)日：2014-07-08

申请号：US13063870

申请日：2010-08-27

申请人： Dimitrios Sakellariou ,  Cédric Hugon ,  Guy Aubert

发明人： Dimitrios Sakellariou ,  Cédric Hugon ,  Guy Aubert

IPC分类号： H01F3/00 ,  H01F7/00 ,  H01F7/02

CPC分类号： H01F7/0278 ,  G01R33/383

摘要： The magnetized structure that induces in a central area of interest a homogeneous magnetic field oriented along a longitudinal axis (z) of the structure comprises first and second magnetized rings (111, 121) disposed symmetrically relative to a plane (P) that is perpendicular to said longitudinal axis (z) and that contains said central area of interest, and one median annular magnetized structure (330) disposed between the first and second magnetized rings (111, 121) and also disposed symmetrically relative to the plane (P) of symmetry. The first magnetized ring (111) is magnetized radially relative to the longitudinal axis (z) with divergent magnetization, the second magnetized ring (121) is magnetized radially relative to the longitudinal axis (z) with convergent magnetization, and the median annular magnetized structure (330) is magnetized along the longitudinal axis (z). The median annular magnetized structure (330) is divided into at least two slices (331A, 331B, 332A, 332B) along the longitudinal axis (z) and the first and second magnetized rings (111, 121) and the various slices (331A, 331B, 332A, 332B) of the median magnetized structure (130) are each divided into identical components in the form of regularly distributed sectors.

摘要翻译： 在沿着该结构的纵向轴线（z）定向的均匀磁场的感兴趣的中心区域中感应的磁化结构包括相对于垂直于（...）的平面（P）对称设置的第一和第二磁化环（111,121） 所述纵向轴线（z）并且包含所述中心区域，以及设置在所述第一和第二磁化环（111,121）之间并且相对于对称平面（P）对称设置的一个中间环形磁化结构（330） 。 第一磁化环（111）相对于具有发散磁化的纵向轴线（z）被径向磁化，第二磁化环（121）相对于纵向轴线（z）径向磁化，并且中心环形磁化结构 （330）沿纵轴（z）被磁化。 中间环形磁化结构（330）沿着纵向轴线（z）和第一和第二磁化环（111,121）和各种切片（331A，331B，332A，332B）分成至少两个切片（331A，331B，332A，332B） 中间磁化结构（130）的各个部分331B，332A，332B分别以规则分布的扇区的形式分成相同的部件。

公开(公告)号：US09128167B2

公开(公告)日：2015-09-08

申请号：US13063864

申请日：2010-08-27

申请人： Dimitrios Sakellariou ,  Guy Aubert ,  Cédric Hugon

发明人： Dimitrios Sakellariou ,  Guy Aubert ,  Cédric Hugon

IPC分类号： H01F7/02 ,  G01R33/383 ,  G01R33/38 ,  G01R33/30

CPC分类号： G01R33/383 ,  G01R33/30 ,  G01R33/307 ,  G01R33/3808 ,  H01F7/0278

摘要： The cylindrical permanent magnet device includes at least one basic structure (10) having a longitudinal axis (z) and a set (20) of coaxial magnetized structures (21, 22, 23, 24) that are in the form of non-contiguous rings of axis that is the longitudinal axis (z) and that are disposed on the same side of the basic structure (10), defining an exterior surface perpendicular to the longitudinal axis (z) to produce a magnetic field (B0) outside the magnet device in an exterior area of interest (3) situated at a predetermined distance from the exterior surface along the longitudinal axis (z). At least one of the coaxial magnetized structures (21, 22, 23, 24) in the form of rings is divided into components in the form of non-contiguous identical sectors. The basic structure (10) and the set (20) of coaxial magnetized structures (21, 22, 23, 24) in the form of rings are magnetized in the same direction (M) to create in the exterior area of interest (3) an induced magnetic field (B0) that is homogeneous or that has a constant gradient and that is oriented at a predetermined angle (θ2) relative to the longitudinal axis (z).

摘要翻译： 圆柱形永久磁铁装置包括至少一个基本结构（10），其具有纵向轴线（z）和一组（20）的同轴磁化结构（21,22,23,24），其为不连续环形 作为纵向轴线（z）并且被设置在基础结构（10）的同一侧上，限定垂直于纵向轴线（z）的外表面，以在磁体装置外部产生磁场（B0） 在距离外表面沿着纵向轴线（z）预定距离的感兴趣的外部区域（3）中。 环形形式的至少一个同轴磁化结构（21,22,23,24）被分成不连续相同扇区形式的部件。 以环形形式的同轴磁化结构（21,22,23,24）的基本结构（10）和组（20）在相同的方向（M）上磁化以在感兴趣的外部区域（3）中产生， 感应磁场（B0），其是均匀的或具有恒定的梯度并且相对于纵向轴线（z）以预定角度（θ; 2）定向。

公开(公告)号：US20120098630A1

公开(公告)日：2012-04-26

申请号：US13063861

申请日：2010-08-27

申请人： Dimitrios Sakellariou ,  Cédric Hugon ,  Guy Aubert

发明人： Dimitrios Sakellariou ,  Cédric Hugon ,  Guy Aubert

IPC分类号： H01F7/02 ,  H01F41/02

CPC分类号： G01R33/383 ,  G01R33/30 ,  G01R33/307 ,  G01R33/3802 ,  H01F7/0278 ,  Y10T29/49075

摘要： A cylindrical permanent magnet device that induces in a central area of interest a homogeneous magnetic field of predetermined orientation relative to a longitudinal axis (z) of the device comprises first and second annular magnetized structures (111, 121) disposed symmetrically relative to a plane (P) that is perpendicular to the longitudinal axis (z) and contains the central area of interest, and a third annular magnetized structure (112, 122) disposed between the first and second structures (111, 121) and also disposed symmetrically relative to the plane (P) of symmetry. The first, second, and third annular magnetized structures (111, 121, 112, 122) are divided into components in the form of sectors. The third annular magnetized structure (112, 122) is divided into at least two slices (112A, 112B, 122A, 122B) along the longitudinal axis (z) and in that all the components of the first, second and third annular magnetized structures (111, 121, 112, 122) are magnetized in the same direction to create in the central area of interest a homogeneous induced magnetic field at a predetermined angle to the longitudinal axis (z). The parts of the device may be assembled before the assembly is magnetized.

摘要翻译： 感兴趣的中心区域中的圆柱形永久磁铁装置相对于装置的纵向轴线（z）在预定取向上形成均匀的磁场包括相对于平面对称设置的第一和第二环形磁化结构（111,121） P），其垂直于所述纵向轴线（z）并且包含所述感兴趣的中心区域，以及设置在所述第一和第二结构（111,121）之间并且相对于所述第一和第二结构（111,121）对称设置的第三环形磁化结构（112,122） 平面（P）对称。 第一，第二和第三环形磁化结构（111,121,112,122）被划分为扇形形式的部件。 第三环形磁化结构（112,122）沿着纵向轴线（z）分成至少两个切片（112A，112B，122A，122B），并且所述第一，第二和第三环形磁化结构的所有部件 111,121,112,122）在相同方向上磁化，以在感兴趣的中心区域中产生与纵向轴线（z）成预定角度的均匀感应磁场。 在组件被磁化之前，装置的部件可以被组装。

公开(公告)号：US20120098539A1

公开(公告)日：2012-04-26

申请号：US13063864

申请日：2010-08-27

申请人： Dimitrios Sakellariou ,  Guy Aubert ,  Cédric Hugon

发明人： Dimitrios Sakellariou ,  Guy Aubert ,  Cédric Hugon

IPC分类号： G01R33/32

CPC分类号： G01R33/383 ,  G01R33/30 ,  G01R33/307 ,  G01R33/3808 ,  H01F7/0278

摘要： The cylindrical permanent magnet device includes at least one basic structure (10) having a longitudinal axis (z) and a set (20) of coaxial magnetized structures (21, 22, 23, 24) that are in the form of non-contiguous rings of axis that is the longitudinal axis (z) and that are disposed on the same side of the basic structure (10), defining an exterior surface perpendicular to the longitudinal axis (z) to produce a magnetic field (B0) outside the magnet device in an exterior area of interest (3) situated at a predetermined distance from the exterior surface along the longitudinal axis (z). At least one of the coaxial magnetized structures (21, 22, 23, 24) in the form of rings is divided into components in the form of non-contiguous identical sectors. The basic structure (10) and the set (20) of coaxial magnetized structures (21, 22, 23, 24) in the form of rings are magnetized in the same direction (M) to create in the exterior area of interest (3) an induced magnetic field (B0) that is homogeneous or that has a constant gradient and that is oriented at a predetermined angle (θ2) relative to the longitudinal axis (z).

摘要翻译： 圆柱形永磁体装置包括至少一个基本结构（10），其具有纵向轴线（z）和一组（20）的同轴磁化结构（21,22,23,24），它们是非连续环形 作为纵向轴线（z）并且被设置在基础结构（10）的同一侧上，限定垂直于纵向轴线（z）的外表面，以在磁体装置外部产生磁场（B0） 位于距离外表面沿着纵向轴线（z）预定距离的感兴趣的外部区域（3）中。 环形形式的至少一个同轴磁化结构（21,22,23,24）被分成不连续相同扇区形式的部件。 以环形形式的同轴磁化结构（21,22,23,24）的基本结构（10）和组（20）在相同的方向（M）上磁化以在感兴趣的外部区域（3）中产生， 感应磁场（B0），其是均匀的或具有恒定的梯度并相对于纵向轴线（z）以预定角度（θ; 2）定向。

公开(公告)号：US20120013338A1

公开(公告)日：2012-01-19

申请号：US13063875

申请日：2010-08-27

申请人： Dimitrios Sakellariou ,  Cédric Hugon ,  Guy Aubert

发明人： Dimitrios Sakellariou ,  Cédric Hugon ,  Guy Aubert

IPC分类号： G01R33/44

CPC分类号： G01R33/383 ,  G01R33/307 ,  H01F7/0278

摘要： A magnetized structure that induces in a central area of interest a homogeneous magnetic field of predetermined orientation relative to a longitudinal axis (z) of the structure comprises at least two magnetized rings (110, 120) disposed symmetrically relative to a plane (P) that is perpendicular to the longitudinal axis (z) and that contains the central area of interest, and at least one median annular magnetized structure disposed at least partly between the two magnetized rings (110, 120) and also disposed symmetrically relative to the plane (P) of symmetry, one of the two magnetized rings (110) being magnetized radially relative to the longitudinal axis (z) with divergent magnetization and the other of the two magnetized rings (120) being magnetized radially relative to the longitudinal axis (z) with convergent magnetization, and the median annular magnetized structure being magnetized with an orientation different from that of the magnetization of the two magnetized rings (110, 120). The median annular magnetized structure comprises at least one magnetized ring (150) having a magnetization distribution of orientation that varies as in Halbach dipoles and the first two magnetized rings (110, 120) and the median annular magnetized structure are each divided into individual components in the form of regularly distributed identical sectors.

摘要翻译： 感兴趣的中心区域的磁化结构相对于该结构的纵向轴线（z）具有预定取向的均匀磁场包括相对于平面（P）对称设置的至少两个磁化环（110,120），所述至少两个磁化环 垂直于所述纵向轴线（z）并且包含所述感兴趣的中心区域，以及至少一个中间环形磁化结构，其至少部分地设置在所述两个磁化环（110,120）之间，并且还相对于所述平面（P ）对称，两个磁化环（110）之一相对于纵向轴线（z）径向磁化，具有发散磁化，并且两个磁化环（120）中的另一个相对于纵向轴线（z）径向磁化， 收敛磁化，并且中间环形磁化结构被磁化，其方向不同于两个磁化环（110,120）的磁化强度 ）。 中间环形磁化结构包括至少一个磁化环（150），其具有如Halbach偶极子中变化的取向的磁化分布，并且前两个磁化环（110,120）和中间环形磁化结构各自被分成 定期分发相同部门的形式。

公开(公告)号：US20110291781A1

公开(公告)日：2011-12-01

申请号：US13063870

申请日：2010-08-27

申请人： Dimitrios Sakellariou ,  Cédric Hugon ,  Guy Aubert

发明人： Dimitrios Sakellariou ,  Cédric Hugon ,  Guy Aubert

IPC分类号： H01F1/00

CPC分类号： H01F7/0278 ,  G01R33/383

摘要： The magnetized structure that induces in a central area of interest a homogeneous magnetic field oriented along a longitudinal axis (z) of the structure comprises first and second magnetized rings (111, 121) disposed symmetrically relative to a plane (P) that is perpendicular to said longitudinal axis (z) and that contains said central area of interest, and one median annular magnetized structure (330) disposed between the first and second magnetized rings (111, 121) and also disposed symmetrically relative to the plane (P) of symmetry. The first magnetized ring (111) is magnetized radially relative to the longitudinal axis (z) with divergent magnetization, the second magnetized ring (121) is magnetized radially relative to the longitudinal axis (z) with convergent magnetization, and the median annular magnetized structure (330) is magnetized along the longitudinal axis (z). The median annular magnetized structure (330) is divided into at least two slices (331A, 331B, 332A, 332B) along the longitudinal axis (z) and the first and second magnetized rings (111, 121) and the various slices (331A, 331B, 332A, 332B) of the median magnetized structure (130) are each divided into identical components in the form of regularly distributed sectors.

摘要翻译： 在沿着该结构的纵向轴线（z）定向的均匀磁场的感兴趣的中心区域中感应的磁化结构包括相对于垂直于（...）的平面（P）对称设置的第一和第二磁化环（111,121） 所述纵向轴线（z）并且包含所述中心区域，以及设置在所述第一和第二磁化环（111,121）之间并且相对于对称平面（P）对称设置的一个中间环形磁化结构（330） 。 第一磁化环（111）相对于具有发散磁化的纵向轴线（z）被径向磁化，第二磁化环（121）相对于纵向轴线（z）径向磁化，并且中心环形磁化结构 （330）沿纵轴（z）被磁化。 中间环形磁化结构（330）沿着纵向轴线（z）和第一和第二磁化环（111,121）和各种切片（331A，331B，332A，332B）分成至少两个切片（331A，331B，332A，332B） 中间磁化结构（130）的各个部分331B，332A，332B分别以规则分布的扇区的形式分成相同的部件。

公开(公告)号：US20090045894A1

公开(公告)日：2009-02-19

申请号：US12159282

申请日：2006-12-29

申请人： Guy Aubert

发明人： Guy Aubert

IPC分类号： H01F6/00 ,  H01F6/06

CPC分类号： G01R33/3815 ,  Y10T29/49071

摘要： The device for creating a uniform magnetic field in a zone of interest, in particular for nuclear magnetic resonance and magnetic resonance imaging, comprises an arrangement of superconductor coils disposed around a longitudinal axis (z) of the zone of interest. This arrangement of coils comprises at least one stack of a set of modular elements (8) distributed along the longitudinal axis (z), each modular element (8) comprising a rectangular-section conductor of superconductor material that is wound in continuous manner to form of a double pancake coil. The double pancake coil comprises a first single plane pancake coil (10) in the form of a spiral, a second single plane pancake coil (20) in the form of a spiral juxtaposed with and parallel to the first single pancake coil (10), and a transition segment (30) without any internal junction between the first and second single pancake coils (10, 20). Each single pancake coil (10, 20) has a connection end (11, 21) situated at the outer peripheral portion of the pancake coil, and the transition segment (30) enables an offset to be provided along the longitudinal axis (z) that is not less than the transverse dimension of the conductor along said axis.

摘要翻译： 用于在感兴趣区域，特别是用于核磁共振和磁共振成像中产生均匀磁场的装置包括围绕感兴趣区域的纵向轴线（z）设置的超导线圈的布置。 这种线圈布置包括沿着纵向轴线（z）分布的一组模块化元件（8）的至少一个堆叠，每个模块化元件（8）包括以连续方式缠绕形成的超导体材料的矩形截面导体 的双煎饼卷。 双煎饼线圈包括螺旋形式的第一单平面薄饼线圈（10），与第一单个扁平线圈（10）并置并平行的螺旋形式的第二单平面煎饼线圈（20） 和在第一和第二单个扁平线圈（10,20）之间没有任何内部连接处的过渡段（30）。 每个单个扁平线圈（10,20）具有位于煎饼线圈的外周部分处的连接端（11,21），并且过渡段（30）能够沿着纵向轴线（z）设置偏移， 不小于沿着所述轴线的导体的横向尺寸。

公开(公告)号：US07952454B2

公开(公告)日：2011-05-31

申请号：US12159282

申请日：2006-12-29

申请人： Guy Aubert

发明人： Guy Aubert

IPC分类号： H01F1/00

CPC分类号： G01R33/3815 ,  Y10T29/49071

摘要： The device for creating a uniform magnetic field in a zone of interest, in particular for nuclear magnetic resonance and magnetic resonance imaging, comprises an arrangement of superconductor coils disposed around a longitudinal axis (z) of the zone of interest. This arrangement of coils comprises at least one stack of a set of modular elements (8) distributed along the longitudinal axis (z), each modular element (8) comprising a rectangular-section conductor of superconductor material that is wound in continuous manner to form of a double pancake coil. The double pancake coil comprises a first single plane pancake coil (10) in the form of a spiral, a second single plane pancake coil (20) in the form of a spiral juxtaposed with and parallel to the first single pancake coil (10), and a transition segment (30) without any internal junction between the first and second single pancake coils (10, 20). Each single pancake coil (10, 20) has a connection end (11, 21) situated at the outer peripheral portion of the pancake coil, and the transition segment (30) enables an offset to be provided along the longitudinal axis (z) that is not less than the transverse dimension of the conductor along said axis.

摘要翻译： 用于在感兴趣区域，特别是用于核磁共振和磁共振成像中产生均匀磁场的装置包括围绕感兴趣区域的纵向轴线（z）设置的超导线圈的布置。 这种线圈布置包括沿着纵向轴线（z）分布的一组模块化元件（8）的至少一个堆叠，每个模块化元件（8）包括以连续方式缠绕形成的超导体材料的矩形截面导体 的双煎饼卷。 双煎饼线圈包括螺旋形式的第一单平面薄饼线圈（10），与第一单个扁平线圈（10）并置并平行的螺旋形式的第二单平面煎饼线圈（20） 和在第一和第二单个扁平线圈（10,20）之间没有任何内部连接处的过渡段（30）。 每个单个扁平线圈（10,20）具有位于煎饼线圈的外周部分处的连接端（11,21），并且过渡段（30）能够沿着纵向轴线（z）设置偏移， 不小于沿着所述轴线的导体的横向尺寸。

公开(公告)号：US20090096451A1

公开(公告)日：2009-04-16

申请号：US12084082

申请日：2006-10-26

申请人： Guy Aubert

发明人： Guy Aubert

IPC分类号： G01R33/48 ,  G01R33/54

CPC分类号： G01R33/385 ,  G01R33/3856 ,  G01R33/4215

摘要： The nuclear magnetic resonance machine comprises a device (101) for creating an intense main magnetic field B0 in a usable interior space (109) in the form of a tunnel with axis Z, a radio-frequency excitation device that also processes radio-frequency signals emitted in response by a body (150) placed in the usable interior space (109), and a set (110) of solenoidal gradient coils for superimposing on the intense magnetic field B0 components of a additional magnetic field, the gradient coils (111-122) being incorporated into tubes disposed in an annular cylindrical space (130). Between an exterior cryogenic enclosure (102) and the annular cylindrical space (130) a cylindrical screen (104) is disposed along the axis Z comprising a conductive material of low resistance and low magnetoresistance such that negligible induced currents are generated in the exterior cryogenic enclosure (102) while the eddy currents induced in the cylindrical screen (104) contribute to reinforcing the gradients produced by the solenoidal gradient coils (111-122).

摘要翻译： 核磁共振机包括用于在具有轴线Z的隧道形式的可用内部空间（109）中产生强烈的主磁场B0的装置（101），还处理射频信号的射频激励装置 放置在可用内部空间（109）中的主体（150）响应地发射，以及用于叠加在附加磁场的强磁场B0分量上的螺线管梯度线圈组（110），梯度线圈（111- 122）被并入设置在环形圆柱形空间（130）中的管中。 在外部低温外壳（102）和环形圆柱形空间（130）之间，沿着包括低电阻和低磁阻的导电材料的轴线Z设置圆柱形屏（104），使得在外部低温外壳中产生可忽略的感应电流 （102），而在圆筒形筛（104）中感应的涡流有助于加强由螺线管梯度线圈（111-122）产生的梯度。