STUDY ON GEMMOLOGY OF DIAMOND WITH NEUTRON ACTIVATION ANALYSIS

The general method of studying diamond by means of neutron activation analysis has been briefly introduced, This method can determine qualitatively or quantitatively 49 impurity elements in diamond, and may analyse whether the colour of diamond is enhanced by neutron irradiation. It is a useful method for studying of gemmology of diamond. Key words diamond, gemmology, neutron activation analysis, gamma spectrum, irradiation