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    Nuclear magnetic resonance apparatus
    1.
    发明授权
    Nuclear magnetic resonance apparatus 失效
    核磁共振装置

    公开(公告)号：US06489769B2

    公开(公告)日：2002-12-03

    申请号：US09888526

    申请日：2001-06-26

    申请人： Takashi Nakamura ,  Jun Uzawa ,  Tetsuo Oka ,  Yoshitaka Ito ,  Yousuke Yanagi ,  Masaaki Yoshikawa ,  Ryohei Yabuno ,  Uichiro Mizutani

    发明人： Takashi Nakamura ,  Jun Uzawa ,  Tetsuo Oka ,  Yoshitaka Ito ,  Yousuke Yanagi ,  Masaaki Yoshikawa ,  Ryohei Yabuno ,  Uichiro Mizutani

    IPC分类号： G01V300

    CPC分类号： G01R33/3815

    摘要： A nuclear magnetic resonance apparatus including: a cup-shaped high-temperature superconductor 20 having a hollow cylindrical shape or portion cooled to not more than a superconducting transition temperature in a vacuum insulating container 22; and a detection coil 12 for detecting an NMR signal of a material 11 to be measured inserted into the hollow cylindrical portion 20a of the high-temperature superconductor. The high-temperature superconductor is magnetized in an axial direction, a static magnetic field is thereby generated in the hollow cylindrical portion in a cylinder axial direction, and the NMR signal of a material is detected by the detection coil and the existing spectrometer. A strong static magnetic field comparable to a conventional superconducting magnet is formed without using a refrigerant (liquid helium) essential for operating the conventional superconducting magnet, and a strength distribution of the static magnetic field is homogeneous.

    摘要翻译： 一种核磁共振装置，包括：在真空绝热容器22中具有中空圆筒形状或冷却至不超过超导转变温度的部分的杯状高温超导体20; 以及检测线圈12，用于检测被插入到高温超导体的中空圆筒部20a中的待测材料11的NMR信号。 高温超导体在轴向上被磁化，因此在中空圆柱形部分中在气缸轴向方向上产生静态磁场，并且通过检测线圈和现有的光谱仪检测材料的NMR信号。 形成与传统超导磁体相当的强静态磁场，而不使用用于操作常规超导磁体所必需的制冷剂（液氦），并且静磁场的强度分布是均匀的。

    Controlling method of superconductor magnetic field application apparatus, and nuclear magnetic resonance apparatus and superconducting magnet apparatus using the method
    2.
    发明授权
    Controlling method of superconductor magnetic field application apparatus, and nuclear magnetic resonance apparatus and superconducting magnet apparatus using the method 失效
    超导磁场施加装置的控制方法以及使用该方法的核磁共振装置和超导磁体装置

    公开(公告)号：US06545474B2

    公开(公告)日：2003-04-08

    申请号：US09888538

    申请日：2001-06-26

    申请人： Takashi Nakamura ,  Jun Uzawa ,  Tetsuo Oka ,  Yoshitaka Ito ,  Yousuke Yanagi ,  Masaaki Yoshikawa ,  Ryohei Yabuno

    发明人： Takashi Nakamura ,  Jun Uzawa ,  Tetsuo Oka ,  Yoshitaka Ito ,  Yousuke Yanagi ,  Masaaki Yoshikawa ,  Ryohei Yabuno

    IPC分类号： G01V300

    CPC分类号： G01R33/3815

    摘要： A controlling method for a nuclear magnetic resonance apparatus. The method includes: (A) cooling the high-temperature superconductor at a magnetization low temperature sufficiently lower than a superconductor transition temperature, and magnetizing the high-temperature superconductor with a magnetic field; (B) raising the temperature of the high-temperature superconductor at a magnetic flux setting temperature higher than the magnetization low temperature and lower than the superconductor transition temperature and setting a predetermined magnetic flux density; and (C) controlling the high-temperature superconductor in an operation temperature range lower than the magnetic flux setting temperature. Therefore, a strong static magnetic field comparable to a conventional superconducting magnet is formed without using a refrigerant (liquid helium) essential for operating the conventional superconducting magnet, and a magnetic flux density of the static magnetic field is held constant.

    摘要翻译： 一种用于核磁共振装置的控制方法。 该方法包括：（A）以足够低于超导体转变温度的磁化低温冷却高温超导体，并用磁场磁化高温超导体; （B）在比磁化低温高且低于超导体转变温度的磁通量设定温度下升高高温超导体的温度，设定规定的磁通密度; 和（C）在低于磁通量设定温度的操作温度范围内控制高温超导体。 因此，与传统的超导磁体相当的强静态磁场形成，而不使用用于操作常规超导磁体所必需的制冷剂（液氦），并且静磁场的磁通密度保持恒定。