Powder diffraction of a two-phase mixture01000020000300004000050000(111)(220)(311)(400)(331)(422)countsLinear intensity: phase fractions come from peak areas2030405060708090050100150200(110)(211)(310)2 theta (degrees, Cu K-alpha)sqrt(counts)Square-root intensity: noise width is uniform, so weak peaks readminority phase reflectionsPowder diffraction of a two-phase mixture