Method of detection of natural diamonds that have been processed at high pressure and high temperatures
    9.
    发明授权
    Method of detection of natural diamonds that have been processed at high pressure and high temperatures 有权
    在高压高温下处理的天然金刚石的检测方法

    公开(公告)号:US06377340B1

    公开(公告)日:2002-04-23

    申请号:US09430477

    申请日:1999-10-29

    CPC classification number: G01N21/64 G01N21/87 G01N2021/6417

    Abstract: A method for detecting whether a natural diamond has been processed at high pressure and high temperature (HPHT) conditions comprises steps of disposing the diamond in a cyrostat that is provided at temperatures equal to or less than liquid nitrogen; illuminating the diamond with a laser beam; recording an optical spectrum of the diamond with a photoluminescence spectrometer; and examining the optical spectrum of the diamond to detect an absence of selected photoluminescent spectral lines. The invention also sets forth a method for predicting whether a natural diamond has been treated under HPHT conditions

    Abstract translation: 一种用于检测天然金刚石是否已经在高压和高温(HPHT)条件下被处理的方法包括将金刚石设置在等于或小于液氮的温度下的冷冻机中的步骤; 用激光束照射金刚石; 用光致发光光谱仪记录金刚石的光谱; 并检查金刚石的光谱以检测不存在所选择的光致发光光谱线。 本发明还提出了一种用于预测天然金刚石是否已经在HPHT条件下进行处理的方法

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