Atomic magnetic gradiometer for room temperature high sensitivity magnetic field detection
    43.
    发明授权
    Atomic magnetic gradiometer for room temperature high sensitivity magnetic field detection 有权
    原子磁梯度仪,用于室温高灵敏度磁场检测

    公开(公告)号:US07573264B2

    公开(公告)日:2009-08-11

    申请号:US11563537

    申请日:2006-11-27

    IPC分类号: G01V3/00

    CPC分类号: G01R33/26

    摘要: A laser-based atomic magnetometer (LBAM) apparatus measures magnetic fields, comprising: a plurality of polarization detector cells to detect magnetic fields; a laser source optically coupled to the polarization detector cells; and a signal detector that measures the laser source after being coupled to the polarization detector cells, which may be alkali cells. A single polarization cell may be used for nuclear magnetic resonance (NMR) by prepolarizing the nuclear spins of an analyte, encoding spectroscopic and/or spatial information, and detecting NMR signals from the analyte with a laser-based atomic magnetometer to form NMR spectra and/or magnetic resonance images (MRI). There is no need of a magnetic field or cryogenics in the detection step, as it is detected through the LBAM.

    摘要翻译: 基于激光的原子磁强计(LBAM)装置测量磁场,包括:多个检测磁场的偏振检测器单元; 光学耦合到所述偏振检测器单元的激光源; 以及信号检测器,其在耦合到可以是碱电池的偏振检测器单元之后测量激光源。 通过对分析物的核自旋进行预极化,编码光谱和/或空间信息,并用基于激光的原子磁强计检测来自分析物的NMR信号,可以将单个极化单元用于核磁共振(NMR),以形成NMR光谱, /或磁共振图像(MRI)。 在检测步骤中不需要磁场或低温,因为它通过LBAM检测。

    Method and apparatus for measuring the NMR spectrum of an
orientationally disordered sample
    45.
    发明授权
    Method and apparatus for measuring the NMR spectrum of an orientationally disordered sample 失效
    用于测量取向无序样品的NMR光谱的方法和装置

    公开(公告)号:US4968939A

    公开(公告)日:1990-11-06

    申请号:US371977

    申请日:1989-06-27

    IPC分类号: G01R33/30

    CPC分类号: G01R33/307

    摘要: An improved NMR probe and method are described which substantially improve the resolution of NMR measurements made on powdered or amorphous or otherwise oreintationally disordered samples. The apparatus mechanically varies the orientation of the sample such that the time average of two or more sets of spherical harmonic functions is zero.

    摘要翻译: 描述了改进的NMR探针和方法,其基本上改善了在粉末状或无定形或其他矿物无序样品上进行NMR测量的分辨率。 该装置机械地改变样品的取向,使得两组或更多组球谐函数的时间平均为零。

    Probe for high resolution NMR with sample reorientation
    46.
    发明授权
    Probe for high resolution NMR with sample reorientation 失效
    探针用于采用样品重新取向的高分辨率NMR

    公开(公告)号:US4899111A

    公开(公告)日:1990-02-06

    申请号:US227729

    申请日:1988-08-03

    IPC分类号: G01R33/30

    CPC分类号: G01R33/307

    摘要: An improved NMR probe and method are described which substantially improve the resolution of NMR measurements made on powdered or amorphous or otherwise orientationally disordered samples. The apparatus mechanically varies the orientation of the sample such that the time average of two or more sets of spherical harmonic functions are zero.

    摘要翻译: 描述了改进的NMR探针和方法,其显着改善在粉末状或无定形或其它方向上无序样品上进行的NMR测量的分辨率。 该装置机械地改变样品的取向,使得两组或更多组球谐函数的时间平均为零。