X-RAY MICROANALYSIS IN PHYTOPATHOLOGY

X-Ray microanalysis of stratified specimens

This paper presents a description of the state of the art methodology and software for the application of x-ray microanalysis to thin surface layers and more generally to the characterization of stratified specimens. The sensitivity of the technique to near-surface segregation is demonstrated. Some emphasis is given on the eS(pz) function (the distribution in depth of the primary generated x-ra...

X-ray microanalysis attachment for electron microscope.

Fundamental Constants for Quantitative X-ray Microanalysis.

Quantitative X-ray microanalysis requires the use of many fundamental constants related to the interaction of the electron beam with the sample. The current state of our knowledge of such constants in the particular areas of electron stopping power, X-ray ionization cross-sections, X-ray fluorescence yield, and the electron backscattering yield, is examined. It is found that, in every case, the...

Implications of Polishing Techniques in Quantitative X-Ray Microanalysis

Specimen preparation using abrasives results in surface and subsurface mechanical (stresses, strains), geometrical (roughness), chemical (contaminants, reaction products) and physical modifications (structure, texture, lattice defects). The mechanisms involved in polishing with abrasives are presented to illustrate the effects of surface topography, surface and subsurface composition and induce...

X-ray microanalysis of airway surface liquid in the mouse.

The ionic composition of airway surface liquid (ASL) has been debated, and, in particular for the mouse, a wide range of values has been published. Two techniques were developed to measure the elemental composition of the ASL. X-ray microanalysis of ASL was carried out at low temperature on trachea removed from isoflurane-anesthetized animals and shock-frozen. In the second technique, dextran b...