Bragg angle
From Online Dictionary of Crystallography
Angle de Bragg (Fr). Angolo di Bragg (Fr). ブラッグ角度 (Ja).
Definition
In Bragg's law describing the condition for a plane wave to be diffracted from a family of lattice planes, the angle θ between the wavevector of the incident plane wave, ko, and the lattice planes (Fig. 1).