The Powder method is used to determine the magnitude of the unit vectors, and assumes a sample of smaller, randomly-oriented targets. Since the work of Perutz and Kendrew in 1958, it has become the most productive means of analyzing protein structure. This was first applied to myoglobin. The back-reflection and transmission Laue methods are two forms of this kind of analysis, relying on white light and a stationary target. It is useful because small-wavelength radiation must be used to successfully analyze molecules but such high-frequency light cannot be lensed; inste
The Powder method is used to determine the magnitude of the unit vectors, and assumes a sample of smaller, randomly-oriented targets. Since the work of Perutz and Kendrew in 1958, it has become the most productive means of analyzing protein structure. This was first applied to myoglobin. The back-reflection and transmission Laue methods are two forms of this kind of analysis, relying on white light and a stationary target. It is useful because small-wavelength radiation must be used to successfully analyze molecules but such high-frequency light cannot be lensed; instead, this process analyzes a large number of similar repeating structures.  FTP, identify this technique used to study the structure of crystal lattices, which fell out of the discovery of Bragg's law.
The Powder method is used to determine the magnitude of the unit vectors, and assumes a sample of smaller, randomly-oriented targets.
X-ray diffraction or X-ray crystallography