how to find hkl values from xrd?
['A. ... ', 'Recognize the hkl values for the first few peaks: 100, 110, 111, 200, 210, 211, 220, etc.', 'Calculate the interplanar spacing, d, for each peak:', '1/d2 = (h2 + k2 + l2)/a2. ... ', "Use Bragg's Law to determine the 2θ value: λ = 2d."]