X-Ray Diffraction. Dr. T. Ramlochan March 2010. Public service announcement…. Radiation warning symbol. New IAEA Radiation warning symbol. Radiation is dangerous, so run away!. Crystals.
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Dr. T. Ramlochan
Radiation warning symbol
New IAEA Radiation warning symbol
Radiation is dangerous, so run away!
X-ray diffraction image of DNA by Rosalind Franklin (1952)
nλ = 2d sin θ
→ when an electron moves from an outer shell to an inner one it is ‘excited’ and releases excess energy directly as X-rays with eV/wavelength characteristic of the atom released from
Kα1 1.540598 Å
Kα2 1.544426 Å