Development of Spectrum Imaging Strategies for Quantitative X-Ray Microanalysis

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...

Ideal standards for quantitative x-ray microanalysis of biological specimens.

The use of ion exchange beads is proposed as standards for the estimation of various elements in biological tissues. Elements to be detected or quantitated in biological tissues occur in three forms: as free ions or salts, in a crystalline phase, and bound to a matrix. For the latter category a standard system using ChelexlOO -jon exchange beads is proposed. Cations can be attached in a control...

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...

Development of Soft X-ray Microanalysis using Windowless SDD Technology

New instrumentation which is sensitive to the detection of ultra low energy (<100eV) X-rays [1,2], promises new analysis capability for the SEM; so called ‘Soft X-ray Microanalysis’. Only those soft X-rays that are generated close to the surface of the sample escape and therefore they offer potential for surface and higher spatial resolution analysis. The detectability of very low energy K, L a...

X-ray microanalysis attachment for electron microscope.