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– ZAF correction CBEMS 164 – XRD, SEM & Microanalysis: Lecture 13
! 17 Spectrum Details! Excitation volume as increase kV from 10 to 15
for CuK$ CBEMS 164 – XRD, SEM & Microanalysis: Lecture 13
! 18 An Energy Dispersive X-ray Spectrum! This is a plot of the number of x-ray
photons collected within an energy
window of (typically) 10 eV as a function
Number of counts depends on material,
beam energy, probe current, and time CBEMS 164 – XRD, SEM & Microanalysis: Lecture 13
! 19 The Process in Practice! • Next we show what is done to obtain a
quantitative analysis of a spot of material
under a beam
• Position is identified by looking at SEM image
and then stopping the beam at a point of
– The stationary spot strikes the sample and x-rays
are produced CBEMS 164 – XRD, SEM & Microanalysis: Lecture 13
! 20 An EDS Spectrum!
• Peaks for different
– Some elements hav...
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This note was uploaded on 01/16/2014 for the course CBEMS 164 taught by Professor Porter,j during the Fall '08 term at UC Irvine.
- Fall '08