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Derive Bragg Law. Explain why X rays and not Y rays are used for structure analysis.What data about the crystal structure can be obtained from the X ray diffraction pattern of crystal
written 9.4 years ago by gravatar for teamques10 teamques10 ★ 70k •   modified 9.4 years ago

Mumbai university > FE > SEM 1 > Applied Physics 1

Marks: 7M

Year: May 2013
engineering physics
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written 9.4 years ago by gravatar for teamques10 teamques10 ★ 70k

Consider a regular arrangement of atoms with inter-planar distance "d". An X-ray beam is incident upon the surface at glancing angle "θ"

Let us assume that the path difference between the scattered rays BC and EF as ∆=nλ thus producing constructive interference.

Now,

∆ = PE + EQ

∴ ∆ …

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