Why Diffraction?

Jan 06, 2020

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Why Diffraction?. Exercise. Superposition of Waves. Questions. Geometry of Diffraction: Braggs Law. Geometry of Diffraction: Braggs Law. Remarks on the Braggs Law. Remarks on the Braggs Law.

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diffraction
braggs law
atomic arrangements
diffracted beams
ray methods
cubic structure diffraction equation

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Why Diffraction?

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Why Diffraction?
Exercise
Superposition of Waves
Questions
Geometry of Diffraction: Braggs Law
Geometry of Diffraction: Braggs Law
Remarks on the Braggs Law
Remarks on the Braggs Law
There are particular atomic arrangements which reduce the intensities of some diffracted beams to zero. There is no diffraction from the prediction. The selection rule for cubic structure:Diffraction Equation:r d=l d=a/(h2+k2+l2)1/2r1d1= r2d2= r3d3= …….r12:r22:r32:…..= 1/d1: 1/d2:1/d3 =(h12+k12+1l2):(h22+k22+122):(h32+k32+132)….
Intensity of Diffraction
X-ray Methods

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