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    • 2. 发明授权
    • Scanning transmission electron microscope and scanning transmission electron microscopy
    • 扫描透射电子显微镜和扫描透射电子显微镜
    • US07227144B2
    • 2007-06-05
    • US11328173
    • 2006-01-10
    • Ruriko TsunetaMasanari KoguchiTakahito HashimotoKuniyasu Nakamura
    • Ruriko TsunetaMasanari KoguchiTakahito HashimotoKuniyasu Nakamura
    • G21K7/00
    • H01J37/1474H01J37/2955H01J2237/1501H01J2237/221H01J2237/2802
    • A scanning transmission electron microscope which enhances correction accuracy of a de-scanning coil for canceling a transmitted-electron-beam position change on an electron detector. Here, this transmitted-electron-beam position change appears in accompaniment with a primary-electron-beam position change on a specimen caused by a scanning coil. First, control over the scanning coil is digitized. Moreover, while being synchronized with a digital control signal resulting from this digitization, values in a de-scanning table registered in a FM(2) are outputted to the de-scanning coil. Here, the de-scanning table is created as follows: Diffraction images before and after activating the scanning coil and the de-scanning coil are photographed using a camera. Then, based on a result acquired by analyzing a resultant displacement quantity of the diffraction images by the image processing, the de-scanning table is created.
    • 扫描透射电子显微镜,其增强用于消除电子检测器上的透射电子束位置变化的去扫描线圈的校正精度。 这里,这种透射电子束位置变化伴随着由扫描线圈引起的样品上的一次电子束位置变化。 首先,对扫描线圈的控制被数字化。 此外,在与由该数字化产生的数字控制信号同步的同时,在FM(2)中登记的去扫描表中的值被输出到去扫描线圈。 这里,如下创建去扫描台:使用相机拍摄激活扫描线圈和去扫描线圈之前和之后的衍射图像。 然后,基于通过图像处理分析衍射图像的合成位移量获得的结果,生成去扫描表。