Obviously the figure of merit described does not include analysis of the relative peak heights in the pattern; so, for complete analysis, some manual interpretation must be utilized. [ eqn. 2 ] 2
Questions to be answered for Background/Introduction Often what are actually diffracted beams are referred to as “reflected beams.” Diffraction of x-rays by crystals and the reflection of light by mirrors are sometimes confused because both phenomena result in theangle of “reflection” being equal to the angle of incidence. Name one way in which diffraction and reflection differ. Diffracted beams from a crystal are composed of rays scattered, bent, and spread around and by the atoms in the crystal in the path of the incident beam, while reflection is the bouncing of the beam off a smooth surface. Diffraction isn’t just at the surface like reflection of mirrors. Each atom interacts in the crystal when it comes to diffraction to alter or influence the beam path even though both have the angle or reflection being equal to the angle of incidence. Because interatomic distances for most crystalline solids are on the order of ___Angstroms Å___, x-ray wavelength beams can be used to measure lattice spacing. Knowing this, could visible light be used for crystal diffraction? Please circle one of the following: NO
You've reached the end of your free preview.
Want to read all 11 pages?