Download or read book The Determination by 14 MeV Neutron activation Analysis of Small Amounts of Oxygen and Silicon in Diamond written by DM. Bibby and published by . This book was released on 1974 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques for the measurement of low levels of oxygen and silicon by fast-neutron-activation analysis have been developed and applied to high-quality diamonds. For oxygen, limits of detection of approximately 5 ug have been established. Sources of error have been studied and eliminated, the ubiquitous occurrence of oxygen being the major problem. Within the accuracy of this work, the results obtained show no significant differences between the oxygen contents of diamonds of different types, or of diamonds from different sources. An oxygen content of 35 +/-4 ppm has been established for high-quality, colourless diamonds. For silicon, a limit of detection of 25 ug was established, and the average silicon content of high-purity diamonds was found to be less than 3 ppm. It is concluded that the oxygen in high-purity diamonds is present as CO2 or H2O and not in silicate inclusions.

Download or read book The Determination by 14 MeV Neutron activation Analysis of Small Amounts of Oxygen and Silicon in Diamond written by DM. Bibby and published by . This book was released on 1974 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques for the measurement of low levels of oxygen and silicon by fast-neutron-activation analysis have been developed and applied to high-quality diamonds. For oxygen, limits of detection of approximately 5 ug have been established. Sources of error have been studied and eliminated, the ubiquitous occurrence of oxygen being the major problem. Within the accuracy of this work, the results obtained show no significant differences between the oxygen contents of diamonds of different types, or of diamonds from different sources. An oxygen content of 35 +/-4 ppm has been established for high-quality, colourless diamonds. For silicon, a limit of detection of 25 ug was established, and the average silicon content of high-purity diamonds was found to be less than 3 ppm. It is concluded that the oxygen in high-purity diamonds is present as CO2 or H2O and not in silicate inclusions.

Download or read book The Determination of Oxygen and Silicon in Diamond by 14 MeV Neutron Activation Analysis written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques for the measurement of low levels of oxygen and silicon, using fast neutron activation analysis, have been developed and applied to high-quality diamonds. For oxygen, a limit of detection of approximately 5 ug has been established. Sources of error have been studied and eliminated, the ubiquitous occurrence of oxygen being the major problem. Within the accuracy of this work, the results obtained show no significant differences in the oxygen contents of diamonds of different types, or of diamonds from different sources. An oxygen content of 35 +/- 4 ppm has been established for high-quality colourless diamonds. For silicon, a limit of detection of 25 ug was established and the average silicon content of these diamonds was found to be less than 3 ppm. It is concluded that the oxygen in high-purity diamonds is present as CO2 or H2O and not in silicate inclusions.

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Download or read book Non destructive Determination of Nitrogen in Diamond by Photoactivation written by G. G. Rocco and published by . This book was released on 1966 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: A photnuclear radioactivation technique is described for the non-destructive determination of total nitrogen in diamonds.

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