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Bragg Diffraction Experiment

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Bragg diffraction experiment, which allows for greater understanding of this type of diffraction.

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5 Pages Complete Study Notes > 2 Years old
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Bragg Diffraction Experiment
Topics this document covers:
Diffraction Physics Electromagnetic radiation Optics Bragg's law Powder diffraction X-ray crystallography Wavelength Angle of incidence W.H. Bragg
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Topics this document covers:
Diffraction Physics Electromagnetic radiation Optics Bragg's law Powder diffraction X-ray crystallography Wavelength Angle of incidence W.H. Bragg
Sample Text:
H. Bragg and his son Sir W.L. Bragg to explain why crystals appear to reflect X-ray beams at certain angles of incidence. Bragg's Law: nλ = 2d sinθ Where d is the distance between atomic layers in a crystal, λ is the wavelength in metres of the incident beam, θ is the angle of incidence; and n is an integer representing the number of wavelengths required for constructive interference to occur. At the smallest angle of incidence (θ) for a maxima n = 1, at the next smallest angle n = 2, etc. Bragg’s Law is an example of X-ray wave interference or X-ray diffraction (XRD), and is used to determine the atomic structure of crystals. The Braggs were awarded the Nobel Prize in physics in 1915 for their work in determining crystal structures (NaCl, ZnS and diamond). θ θ θ Extra distance travelled by photon that enters the second dsi...
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