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何谓荧光?何谓磷光?

问答题
2022-01-01 13:55
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正确答案
1.荧光:指宝石在高能射线辐照下发射可见光的现象。宝石鉴定中常用的辐射线由可见光、紫外线及X一射线提供。宝石的荧光色与其在白光下的正常颜色可以相同,也可以不同,且在不同的光源下也可有很大变化。
2.磷光:指被辐射的宝石在外部辐射源关闭后,具有荧光的宝石仍能继续发光的现象,即余光现象。磷光一般持续时间较短,不超过几分钟。

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