METHOD TO SORT DIAMONDS BY ELECTROPHYSICAL PROPERTIES

摘要

FIELD: measurement equipment.;SUBSTANCE: method to sort diamonds by electrophysical properties includes preliminary polarisation of diamonds, subsequent heating with permanent speed and registration of currents of thermally stimulated depolarisation, preliminary polarisation of the diamond is carried out by radiation with X-ray at temperature of 70-90°C in the electric field, after radiation the diamond is cooled in the electric field to room temperature, afterwards they start heating and measurement of currents of thermally stimulated depolarisation, those diamonds are recognised good, in which values of current peaks in maxima at 130-170°C and 190-230°C is below the threshold value.;EFFECT: increased yield of good instruments.;3 cl