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Method of investigating and correcting aberrations in a charged-particle lens system
Method of investigating and correcting aberrations in a charged-particle lens system
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机译:研究和校正带电粒子透镜系统中像差的方法
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摘要
A system of investigating aberrations in a charged particle lens system, wherein a charged particle beam is directed from a multitude of directions through a pivot point on a sample stage. An image figure is recorded for each of multiple focus settings at each beam direction setting, creating a set of registered images. This set of images is compared to reference images to derive aberrations present in the lens system without the use of an amorphous sample present.
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