| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an image acquisition method that enables acquisition of information on a wide frequency band.SOLUTION: An image acquisition method relating to the present invention, which is used for a transmission electron microscope, includes the steps of: suppressing attenuation of a contrast transfer function based on an envelope function, by setting at least one of a spherical aberration coefficient and a chromatic aberration coefficient of an imaging system of the transmission electron microscope; and acquiring an image by the imaging system under a defocus condition.</p> |
