Question

Advantage of theta-theta and theta- two theta geometry

Answer 1

Answer:

Bragg’s law is always having the angle calculation with respect to incident x-ray beam; therefore, the measurement needs always to be taken with respect to incident x-ray beam rather than the sample. For that it says the sample will make Ө angle with incident x-ray beam, where diffracted x-ray will make 2Ө angle with incident x-ray beam.