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.
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