FIELD: physics.
SUBSTANCE: method involves exposing crystals to electromagnetic radiation in the infrared range, recording values of optical density of the crystals in the infrared range, calculating absorption coefficients of absorption systems or determining concentration of defects of the crystalline structure. After recording optical density values in an arbitrary direction, the position of the maximum of the absorption band is determined in the 1350-1390 cm-1 range. The obtained data are then statistically processed and compared with standard values of concentration of defects of the crystalline structure, absorption coefficients and the position of the maximum of the absorption band in the said range.
EFFECT: high reliability of identifying a diamond source.
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