作者: R.M. Tromp
DOI: 10.1016/J.ULTRAMIC.2010.11.029
关键词: Cathode 、 Physics 、 Microscopy 、 Apochromat 、 Optics 、 Low-energy electron microscopy 、 Lens (optics) 、 Chromatic scale 、 Chromatic aberration 、 Contrast transfer function
摘要: … order that the objective lens entrance has … objective lens distance, L. Such a uniform field forms a virtual image of the sample, located at a distance −2L from the front of the objective lens…