Lecture12-LaueBackscatteringII

Lecture12-LaueBackscatteringII - EMSE 312 – Diffraction...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: EMSE 312 – Diffraction Principles Lecture 12 Laue Backscattering Techniques and Stereographic Projections (cont.) EMSE 312 DIFFRACTION PRINCIPLES EMSE 312 – Diffraction Principles Laue Backscattering Technique • Each plane will diffract for • Know the point of the diffracted beam • Want to know the point for the plane normal ( ) B hkl 2d sin n θ λ = ⋅ Single Crystal n Diffracted Beam Plane Normal Plane d hkl Incident Beam Photographic Plate B θ B θ γ γ O B 2 2 1 8 θ γ π + = = EMSE 312 – Diffraction Principles Bragg’s Law • Real Space vs. Reciprocal Space Considerations ( ) B hkl 2d sin n θ λ = ⋅ Real Space Reciprocal Space Wave Vector - k k k’ hkl d λ 1 1’ 2 2’ B θ B θ B θ B θ ( ) B hkl d s i n θ ( ) B hkl d s i n θ n g B θ B θ k g k ' + = G G G EMSE 312 – Diffraction Principles b* c* • Allow an x-ray beam interact with a single crystal Laue Backscattering Technique 000 010 001 Probability of Interaction MAX MIN 1 k λ = G MAX MIN 1 k λ = G MIN MAX 1 k λ = G MIN k G MAX k G ( ) 045 θ θ MIN λ ( ) 045 λ MAX λ EMSE 312 – Diffraction Principles Laue Backscattering Technique • E x a m p l e SWL 0.0355nm λ = Accelerating Voltage LWL 0.2nm λ = Absorption in Air ( ) 110 ( ) 410 ( ) 130 Explore EMSE 312 – Diffraction Principles...
View Full Document

This note was uploaded on 12/01/2011 for the course EMSE 312 taught by Professor Lagerlof,p during the Spring '08 term at Case Western.

Page1 / 26

Lecture12-LaueBackscatteringII - EMSE 312 – Diffraction...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online