Zobrazeno 1 - 10 of 22 pro vyhledávání: '"E. G. Ramberg"'
2
Aberration Correction with Electron Mirrors
Autor: E. G. Ramberg
Publikováno v: Journal of Applied Physics. 20:183-186
Both the spherical and the chromatic aberration of electron microscope objectives may, in principle, be corrected with the aid of a uniform retarding field acting as a mirror. Such an arrangement has the drawback of requiring a conducting film in the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fda22e8a23bfeb9384e396f74a9a474b
https://doi.org/10.1063/1.1698330
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6
The Magnetic Electron Microscope Objective: Contour Phenomena and the Attainment of High Resolving Power
Autor: James Hillier, E. G. Ramberg
Publikováno v: Journal of Applied Physics. 18:48-71
A theoretical and experimental investigation of contour phenomena observed in electron microscope images near focus has been carried out. An explanation for the apparent reversal of the Fresnel fringes at exact focus is given and a method is describe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a7bd43acbbe75cf37f1fd56f97d08038
https://doi.org/10.1063/1.1697554
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7
Phase Contrast in Electron Microscope Images
Autor: E. G. Ramberg
Publikováno v: Journal of Applied Physics. 20:441-444
Image contrast in electron microscope images may arise from absorption, scattering, or phase changes impressed on the illuminating electron wave. In the present paper the intensity distribution in the in‐focus and out‐of‐focus image of an edge
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f23176557da14d7f2f6f7844bca84c19
https://doi.org/10.1063/1.1698403
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9
A Theoretical Analysis of the Operation of Flying Spot and Camera Tube Microscopes in the Ultraviolet
Autor: E. G. Ramberg
Publikováno v: IRE Transactions on Medical Electronics. :58-64
The minimum specimen exposure at television scanning rates required to yield pictures with acceptable signal-to-noise ratio and the best resolution optically attainable is computed for flying-spot, image-orthicon, and vidicon television microscopes f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3fbd444f1e6564ef64624609d7e08ff1
https://doi.org/10.1109/iret-me.1958.5008504
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10
The Photographic Action of Electrons in the Range Between 40 and 212 Kilovolts
Autor: R. F. Baker, James Hillier, E. G. Ramberg
Publikováno v: Journal of Applied Physics. 13:450-456
The Hurter and Driffield curves and the absolute sensitivities of Eastman medium lantern slide plates are determined for electrons accelerated through differences of potential from 40 to 212 kilovolts. Within experimental error the H and D curves are
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ef4b853b93b21ba06418138177695b3
https://doi.org/10.1063/1.1714893
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