What it is
http://www.npr.org/sections/goatsandsoda/2017/04/14/523312856/is-yellow-fever-knocking-at-our-door
X-ray
crystallography is an analytical technique used to determine the arrangement
of atoms in a crystal. This technique relies on the principles
of Bragg's Law and x-ray diffraction.
X-ray crystallography
involves directing a beam of x-rays through a crystalline
structure; the result is a diffraction pattern on a piece of
film or a detector that displays how the rays diffracted through
the molecular structure. Each diffraction pattern is unique to
the crystal, allowing for the determination and differentiation
of individual structures.
Once the
diffraction pattern is created, an electron density map is
developed. The density map can then be interpreted into an
atomic model displaying the structure of the atom or molecule.
