Diffuse Scattering - Spallation Neutron Source - Oak Ridge National ...

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Krivoglaz classified defects by effect on Bragg Peak • Defects of 1st kind – Atomic displacements remain finite – Bragg width unchanged – Bragg intensity decreased – <strong>Diffuse</strong> redistributed in reciprocal space • Defects of 2nd kind – No longer distinct Bragg peaks – Displacements continue to grow with crystal size Intensity No defects Defects of 1st kind Defects of 2nd kind
Who the heck was Krivoglaz? • Brilliant Ukrainian scientist • Dissertation –predated Mossbauer’s work • Pioneered a general way of categorizing and studying defects using x-rays/neutrons
Page 1 and 2: Diffuse Scattering • Anticipatory
Page 3 and 4: Presentation concentrates year grad
Page 5 and 6: What you already know- arrangement
Page 7 and 8: If crystal lattice of atoms leads t
Page 9: You already know length scales are
Page 13 and 14: Single crystals and surfaces -trunc
Page 15 and 16: A little math helps for party conve
Page 17 and 18: X-rays scattering measurements infe
Page 19 and 20: Extra diffuse scattering often obse
Page 21 and 22: Complete transformation induced by
Page 23 and 24: Neutrons uniquely sensitive to low
Page 25 and 26: Alloys can have another type 1 defe
Page 27 and 28: Neutron/ X-rays Complimentary For S
Page 29 and 30: X-ray anomalous scattering can chan
Page 31 and 32: Measurement and theory of atomic si
Page 33 and 34: High-energy x-ray measurements revo
Page 35 and 36: Dislocations -Krivoglaz defect of t
Page 37 and 38: Intense microbeams/area detectors p
Page 39 and 40: Diffuse microdiffraction holds prom
Page 41 and 42: Numerical calculations determine qu
Page 43 and 44: X-ray Diffuse Scattering Huang theo
Page 45 and 46: Corelli SNS beamline specialized fo
Page 47 and 48: New directions in diffuse scatterin
Page 49 and 50: A. Gunier Diffuse scattering done b

Diffuse Scattering - Spallation Neutron Source - Oak Ridge National ...

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