Reciprocal Space Direct space is composed of unit cells and its contents whereas reciprocal space is a lattice whose lattice points are Bragg reflections. Direct and reciprocal space are ghtly coupled 分 苏五长 有一太苏 玉 长 • Reciprocal Space Direct space is composed of unit cells and its contents, whereas reciprocal space is a lattice whose lattice points are Bragg reflections. Direct and reciprocal space are tightly coupled