Basics of Electron Microprobe Analysis

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AN ELECTRON BEAM IS FOCUSSED ON THE SAMPLE TO BE ANALYSED.  THE ENERGY OF THE ELECTRON BEAM CAUSES VARIOUS RADIATIONS & PARTICLES TO BE EMITTED FROM THE SAMPLE.

SOME OF THE EMISSIONS ARE CHARACTERISTIC OF THE ELEMENTS PRESENT IN THE SAMPLE.

CHARACTERISTIC X-RAYS FROM ELEMENTS IN THE SAMPLE ARE OF PARTICULAR INTEREST
AS THEY ARE MORE EASILY MEASURED.

BOTH ENERGY AND WAVELENGTH ANALYSIS OF THESE X-RAYS WILL INDICATE WHAT ELEMENTS ARE PRESENT AND THE NUMBER OF X-RAYS COUNTED INDICATES HOW MUCH OF THE ELEMENT IS PRESENT

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