Lect23_notes

Cbems 164 xrd sem microanalysis lecture 23 21

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Unformatted text preview: ng Centers! CBEMS 164 – XRD, SEM & Microanalysis: Lecture 23 ! 20 Constructive Interference of Scattered Waves! CBEMS 164 – XRD, SEM & Microanalysis: Lecture 23 ! 21 Diffraction and the Determination of Structure! CBEMS 164 – XRD, SEM & Microanalysis: Lecture 23 ! 22 Diffraction Cones! CBEMS 164 – XRD, SEM & Microanalysis: Lecture 23 ! 23 CBEMS 164 – XRD, SEM & Microanalysis: Lecture 23 ! 24 X-Ray Diffraction! Constructive Interference! ! Bragg s Law – Needed For Peaks! Criterion for constructive interference! ! CBEMS 164 – XRD, SEM & Microanalysis: Lecture 23 ! 25 Diffraction and the Direction of Diffracted Beams! Two rays traveling along the same trajectory are completely in phase when the path lengths traveled differ either by zero, or by a whole number of wavelengths.! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! CBEMS 164 – XRD, SEM & Microanalysis: Lecture 23 ! 26 Using X-Rays to Determine Crystal Structure! !• Incoming X-rays diffract from crystal planes. ! ! !...
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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.

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