CRITERION OF PRIMITIVE SOLUTIONS IN THE AUTOMATIC INDEXING OF ELECTRON DIFFRACTION PATTERNS
电子衍射图自动标定中初基解的判据

Electron diffraction patterns can be automatically indexed by comparing two nearest diffraction spots with two calculated reciprocal vectors r1* and r2*2, r1*×r2*= Au. However, non-primitive solutions corresponding to non-primitive reciprocal plane cells, sometimes result. For simple Bravais lattices, obviously A=1 is the criterion of primitive solutions. For primitive solutions in centred Bravais lattices, it has been shown that A has also specified values for various combinations of u, v, w indices.