Diatomic line. Consider a line of atoms ABAB... AB, with an A-B bond length of a. The form factors are f₁, f for atoms A

[answerhappygod]

Diatomic Line Consider A Line Of Atoms Abab Ab With An A B Bond Length Of A The Form Factors Are F F For Atoms A 1 (121.81 KiB) Viewed 32 times

Diatomic line. Consider a line of atoms ABAB... AB, with an A-B bond length of a. The form factors are f₁, f for atoms A, B, respectively. The incident beam of x-rays is perpendicular to the line of atoms. (a) Show that the interference condition is nλ = a cos 0, where is the angle between the diffracted beam and the line of atoms. (b) Show that the intensity of the diffracted beam is proportional to ƒ₁ - fB|² for n odd, and to [ƒ₁ +ƒB|² for n even. (c) Explain what happens if f₁ = ƒB.