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    • 6. 发明专利
    • Magnetic resonance imaging device
    • 磁共振成像装置
    • JP2007014794A
    • 2007-01-25
    • JP2006232846
    • 2006-08-29
    • Topspin Medical (Israel) Ltdトップスピン メディカル (イスラエル) リミテッド
    • BLANK AHARONALEXANDROWICZ GILGOLAN EREZ
    • A61B5/055G01R33/28A61M25/00G01R33/34G01R33/38
    • G01R33/3808
    • PROBLEM TO BE SOLVED: To provide an imaging probe, an imaging method, and an MRI system which use the same principle for imaging an area in interest of a medium. SOLUTION: The probe comprises the first and second magnetic field sources (11a and 11b) and a receiver (12) for an NMR signal, wherein the first magnetic field source produces a static magnetic field 22 within a highly gradient magnetic area in the area in interest outside the probe, and the second source produces a time-dependent magnetic field, which is then given in the highly gradient static magnetic area to excite the atomic nuclei having their different resonance frequencies within at least one sub area in the static magnetic area, thereby to produce the NMR signal. The probe may have further ψ-gradient coils (110a and 110b). COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种成像探针,成像方法和MRI系统,其使用相同的原理来对介质感兴趣的区域进行成像。 解决方案:探头包括第一和第二磁场源(11a和11b)和用于NMR信号的接收器(12),其中第一磁场源在高梯度磁场内产生静态磁场22 探针外部感兴趣的区域和第二源产生时间依赖磁场,然后在高梯度静磁场中给出,以在静态中至少一个子区域内激发具有不同谐振频率的原子核 从而产生NMR信号。 探头可以具有更多的ψ梯度线圈(110a和110b)。 版权所有(C)2007,JPO&INPIT
    • 10. 发明申请
    • OPTICALLY PUMPED SOLID STATE MASER
    • 光电泵浦固态
    • WO0178201A3
    • 2002-04-18
    • PCT/IL0100316
    • 2001-04-05
    • YISSUM RES DEV COLEVANON HAIM YBLANK AHARON
    • LEVANON HAIM YBLANK AHARON
    • H01S1/02
    • H01S1/02
    • Optically pumped maser are described. The devices are useful for microwave amplification, microwave phase shifting and microwave limiting function. The devices are based on electron spin polarization of a stable free radical species induced by an intermolecular energy transfer process acting via a photo induced radical triplet pair mechanism. A radical triplet precursor chromophore in a matrix with the stable free radical species is irradiated, preferably using a pulsed laser to initiate the process with concomitant increase in matrix magnetic susceptibility. Microwave radiation incident on the photo activated matrix is reflected as amplified, phase shifted or limited microwave fields dependent on relevant device parameters and on the power of the incident microwave radiation.
    • 描述了光学泵送的激光器。 该器件适用于微波放大,微波相移和微波限制功能。 这些器件基于通过经由光诱导的自由基三重态对机理作用的分子间能量转移过程诱导的稳定的自由基物质的电子自旋极化。 照射具有稳定自由基物质的基质中的自由基三联体前体发色团,优选使用脉冲激光来引发该方法,同时增加基质磁化率。 入射到光激活矩阵上的微波辐射被反射为放大,相移或有限的微波场,取决于相关器件参数和入射微波辐射的功率。