Quantum Theory of the Generalized Nonlocal Linear Response

Quantum Theory of Near-Field Electrodynamics ◽

10.1007/978-3-642-17410-0_12 ◽

2011 ◽

pp. 217-237

Author(s):

Ole Keller

Keyword(s):

Quantum Theory ◽

Linear Response

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Photographic Equidensitometry of High Voltage Electron Images of Thick Noncrystalline Materials

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100096229 ◽

1972 ◽

Vol 30 ◽

pp. 594-595

Author(s):

Keinosuke Kobayashi

Keyword(s):

High Voltage ◽

Linear Response ◽

Thickness Distribution ◽

Contour Map ◽

Mass Thickness ◽

Voltage Electron ◽

High Voltage Electron ◽

Homogeneous Particle ◽

Photographic Emulsions ◽

Logarithmic Relation

Equidensitometry as developed by E. Lau and W. Krug has been little used in the analysis of ordinary electron photomicrographs, yet its application to the high voltage electron images proves merits of this procedure. Proper sets (families) of equidensities as shown in the next page are able to reveal the contour map of mass thickness distribution in thick noncrystalline specimens. The change in density of the electron micrograph is directly related to the mass thickness of corresponding area in the specimen, because of the linear response of photographic emulsions to electrons and the logarithmic relation between electron opacity and mass thickness of amorphous object.This linearity is verified by equidensitometry of a spherical solid object as shown in Fig. 1a. The object is a large (1 μ) homogeneous particle of polystyrene. Fig. 1b is a composite print of three equidensities of the 1st order prepared from Fig. 1a.

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