公开(公告)号：US06735851B2

公开(公告)日：2004-05-18

申请号：US10043622

申请日：2002-01-08

申请人： Marco A. Romo ,  Wai Ha Wong

发明人： Marco A. Romo ,  Wai Ha Wong

IPC分类号： H01F706

CPC分类号： G01R33/34076 ,  G01R33/34007 ,  G01R33/34023 ,  G01R33/34046 ,  G01R33/34092 ,  G01R33/3453 ,  Y10T29/43 ,  Y10T29/435 ,  Y10T29/49012 ,  Y10T29/49071 ,  Y10T29/49073

摘要： Superconducting birdcage coil with low-pass and high-pass coil configurations are formed by using strips each with an elongated sapphire substrate with a layer of a high temperature superconductor (HTS) material grown in a wavy pattern over its entire length on one of its main surfaces. A low-pass coil is formed with a pair of ring elements made of an electrically conductive metal and a plurality of such strips arranged parallel to one another and interconnecting these ring elements at junctions which are spaced peripherally along each of the rings. At each of the junctions, the ring element and the HTS layer form a capacitance. A high-pass coil is formed by a plurality of such strips each with electrodes of the HTS material also grown at two end positions separated from each other on the other main surface of its sapphire substrates. These strips are arranged parallel to each other and sequentially around a central axis, each lying in a plane which includes the center axis. The electrodes and the HTS layers on mutually adjacent pairs of strips are closely in face-to-face relationship so as to serve as the ring part of a birdcage configuration containing capacitors.

摘要翻译： 通过使用带有细长蓝宝石衬底的条带形成具有低通和高通线圈构造的超导鸟笼线圈，该蓝宝石衬底具有在其主体之一上以波长图案长度生长的高温超导体（HTS）材料层 表面。 低通线圈形成有由导电金属制成的一对环形元件和彼此平行布置的多个这样的条，并且在沿着每个环周向间隔开的连接处互连这些环形元件。 在每个结点处，环形元件和HTS层形成电容。 高通线圈由多个这样的带形成，每个带有HTS材料的电极也在其蓝宝石衬底的另一个主表面上彼此分离的两个端部位置处生长。 这些条彼此平行地布置并且依次围绕中心轴线布置，每个中心轴线位于包括中心轴线的平面中。 相互邻近的条带上的电极和HTS层紧密地面对面地关系，以便作为包含电容器的鸟笼配置的环部分。

公开(公告)号：US06377047B1

公开(公告)日：2002-04-23

申请号：US09589847

申请日：2000-06-08

申请人： Wai Ha Wong ,  Marco A. Romo

发明人： Wai Ha Wong ,  Marco A. Romo

IPC分类号： G01V300

CPC分类号： G01R33/34076 ,  G01R33/34007 ,  G01R33/34023 ,  G01R33/34046 ,  G01R33/34092 ,  G01R33/3453 ,  Y10T29/43 ,  Y10T29/435 ,  Y10T29/49012 ,  Y10T29/49071 ,  Y10T29/49073

摘要： Superconducting birdcage coil with low-pass and high-pass coil configurations are formed by using strips each with an elongated sapphire substrate with a layer of a high temperature superconductor (HTS) material grown in a wavy pattern over its entire length on one of its main surfaces. A low-pass coil is formed with a pair of ring elements made of an electrically conductive metal and a plurality of such strips arranged parallel to one another and interconnecting these ring elements at junctions which are spaced peripherally along each of the rings. At each of the junctions, the ring element and the HTS layer form a capacitance. A highpass coil is formed by a plurality of such strips each with electrodes of the HTS material also grown at two end positions separated from each other on the other main surface of its sapphire substrates. These strips are arranged parallel to each other and sequentially around a central axis, each lying in a plane which includes the center axis. The electrodes and the HTS layers on mutually adjacent pairs of strips are closely in face-to-face relationship so as to serve as the ring part of a birdcage configuration containing capacitors.

摘要翻译： 通过使用带有细长蓝宝石衬底的条带形成具有低通和高通线圈构造的超导鸟笼线圈，该蓝宝石衬底具有在其主体之一上以波长图案长度生长的高温超导体（HTS）材料层 表面。 低通线圈形成有由导电金属制成的一对环形元件和彼此平行布置的多个这样的条，并且在沿着每个环周向间隔开的连接处互连这些环形元件。 在每个结点处，环形元件和HTS层形成电容。 高通线圈由多个这样的条形成，每个带有HTS材料的电极也在其蓝宝石衬底的另一个主表面上彼此分离的两个端部位置处生长。 这些条彼此平行地布置并且依次围绕中心轴线布置，每个中心轴线位于包括中心轴线的平面中。 相互邻近的条带上的电极和HTS层紧密地面对面地关系，以便作为包含电容器的鸟笼配置的环部分。

公开(公告)号：US06593743B2

公开(公告)日：2003-07-15

申请号：US10035299

申请日：2001-10-26

申请人： Thomas de Swiet ,  Marco A. Romo ,  Nancy Winward

发明人： Thomas de Swiet ,  Marco A. Romo ,  Nancy Winward

IPC分类号： G01V300

CPC分类号： G01R33/34046 ,  G01R33/34092

摘要： A radio-frequency (RF) coil for a nuclear magnetic resonance (NMR) probe includes rounded longitudinal conductors connecting end rings formed by sheets. The rounded conductors can be formed by curled sheets or wires. The rounded conductors allow reduced RF losses at the coil window edges, and thus allow increased coil sensitivities. The rounded conductors also allow increased coil sensitivities for an orthogonal coil, by allowing increased transparency to the magnetic field generated by the orthogonal coil. A curled-sheet RF coil can be generated from a single etched sheet by curling longitudinal sections of the sheet into tubular longitudinal conductors. To make such a coil, each longitudinal section is inserted into a longitudinal slot of a sheet-curling member, and the member is rotated about its longitudinal axis. As the curling member is rotated, the longitudinal sheet section wraps around the curling member and becomes curled. The curling member can be provided as part of a sheet-curling tool including two transverse plates for securing the coil into place between the plates, and a set of guides allowing the longitudinal motion of one plate relative to the other.