Comptes Rendus1953 - Electron microscopes |
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Page 58
... first approximation these again will describe a circle , but an eccentric one . The mean potential on this orbit is the potential on the con- centric circle " m " . The curious fact is , that this potential is lower than that on the ...
... first approximation these again will describe a circle , but an eccentric one . The mean potential on this orbit is the potential on the con- centric circle " m " . The curious fact is , that this potential is lower than that on the ...
Page 215
... first pointed out by HILLIER ( 1946 ) that a second lens could be so arranged with respect to the first as to eliminate distortion completely . In the case discussed by him ( the projector lens of an electron microscope ) the incident ...
... first pointed out by HILLIER ( 1946 ) that a second lens could be so arranged with respect to the first as to eliminate distortion completely . In the case discussed by him ( the projector lens of an electron microscope ) the incident ...
Page 216
here considered , the specimen is close to the first lens . In figure 2 are shown the paths of two particular rays incident in the first lens at different heights , parallel to each other but making an angle a with the axis . For ...
here considered , the specimen is close to the first lens . In figure 2 are shown the paths of two particular rays incident in the first lens at different heights , parallel to each other but making an angle a with the axis . For ...
Contents
Allocution douverture du Congrès par L de BROGLIE | 7 |
A short general survey of the study or surfaces films and par | 13 |
Quelques résultats concernant linfluence | 14 |
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accelerating aluminium angle aperture appears astigmatism astigmatisme atoms avons axis bacteria calcul cellules chromatic coherence contrast courbe crystal density diagramme diamètre diaphragme different diffraction diffraction pattern distance focale effect electron diffraction electron micrographs electron microscope électrostatique ferrite fibrilles field first focal length focus forme formed formvar found franges fringe give given grains grossissement high voltage image kaolinite kieselguhr l'aberration sphérique l'acide l'axe layer lens lenses lentille lentille électrostatique leucocytes made membrane metal method micron microscope électronique normal number object observations obtained optical optique optique électronique order oxide film particules phages phase photographies Phys plan de mise potentiel pouvoir de résolution pouvoir séparateur R₁ rayons rayons X replica resolution résultats results same seen servomoteur shown in figure shows single sliding small sonde specimen spherical aberration steel structure surface system technique temperature tension thickness times tion trichocystes used value virus wave work