FIELD: physics.
SUBSTANCE: method involves recording optical density spectra of diamond crystals in the infrared range using a spectrometer. Absorption bands are determined after recording optical density spectra. Natural or artificial origin of colour is determined from the set and relative intensity of absorption bands in the 1360-7000 cm-1 range.
EFFECT: determining signs of artificial radiation exposure, as well as signs of artificial radiation exposure and subsequent annealing of diamond crystals.
Title | Year | Author | Number |
---|---|---|---|
METHOD OF ANALYSING CUT PRECIOUS STONES | 2010 |
|
RU2435158C1 |
METHOD OF IDENTIFYING SOURCE OF COLLECTION OF DIAMOND CRYSTALS | 2009 |
|
RU2413931C1 |
PROCEDURE FOR PRODUCTION OF DIAMONDS OF FANTASY YELLOW AND BLACK COLOUR | 2010 |
|
RU2434977C1 |
METHOD FOR IDENTIFICATION OF DIAMONDS AND DEVICE FOR ITS IMPLEMENTATION | 2020 |
|
RU2739143C1 |
METHOD OF DIAMOND CRYSTAL IDENTIFICATION | 2007 |
|
RU2329489C1 |
METHOD OF MANUFACTURING DIAMONDS IN FANTASY RED COLOR | 2003 |
|
RU2237113C1 |
COLOURED DIAMONDS | 2003 |
|
RU2328563C2 |
METHOD OF PRODUCTION OF COLOR DIAMONDS IN CONDITIONS OF HIGH PRESSURE AND TEMPERATURES | 2000 |
|
RU2252066C2 |
OPTICALLY PERMEABLE MARK FOR PRECIOUS STONES MARKING | 2019 |
|
RU2719611C1 |
METHOD OF IMPROVING QUALITY OF PRECIOUS STONES | 1994 |
|
RU2083149C1 |
Authors
Dates
2012-10-10—Published
2011-04-08—Filed