Proceedings of the ... International Conference on Electron Microscopy1950 - Electron microscopes |
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acid Airy disc angle aperture Associated Electrical Industries astigmatism atoms avons axis bacteria cell cellulose collagen collodion coronene Cosslett cross section crystal Delft diameter diffraction digérés Discussion electron beam electron micro electron micrographs electron microscope electrostatic epicuticle examined faible fibres fibrils field filaments film flagella flagellum focal formvar grains grid haemoglobin influenza Institute instrument investigation l'objet Laboratoire Laboratory lattice layer lenses light microscope magnification material membrane ment metal method microscope électronique microtome Mijnbouwplein 11 molecules mucilage nique normal objective lens observed obtained optical outer segments particles pattern peut phase contrast phase plate plane possible précipités preparation Prof psittacosis rays replica Research resolution resolving power rod outer segments samples scattering screen shadow skin sonde specimen spherical aberration strains struc structure surface technique thickness thin tion tissue ture unit discs virus viruses visible voltage W. G. Burgers Wyckoff X-ray