röntgenkiirguse hajumisest katsekehalt tuleneva informatsioonil põhinev kristallilise struktuuri uurimismeetod (vt radiograafia, difrakstsioon), an analytic technique in which measurements are made of the angles at which X-rays are preferentially scattered from sample in order to deduce information on the crystalline nature of the sample (see: radiography, diffraction)