Patent · US Expired

Analysis with electron microscope of multielement samples using pure element standards

US4697080A · kind A · utility

17Cited by
9References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 6, 1986
Grant dateSep 29, 1987
Priority date
Expiry dateJan 6, 2006

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N23/2251
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A method and modified analytical electron microscope for determining the concentration of elements in a multielement sample by exposing samples with differing thicknesses for each element to a beam of electrons, simultaneously measuring the electron dosage and x-ray intensities for each sample of element to determine a "K.sub.AB " value to be used in the equation ##EQU1## where I is intensity and C is concentration for elements A and B, and exposing the multielement sample to determine the concentrations of the elements in the sample.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.