Some Basic Studies on Non-Destructive Elemental Analysis of Bulky Samples by PGAA
Some Basic Studies on Non-Destructive Elemental Analysis of Bulky Samples by PGAA
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PGAA对大体积样品无损元素分析的一些基础研究
DOI：
10.1023/a:1006752129650
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发表时间：
2000
影响因子：
1.6
通讯作者：
Yoichi M. Ito
中科院分区：
文献类型：
--
作者：
H. Nakahara;Y. Oura;K. Sueki;M. Ebihara;W. Sato;Shaikh Abdul Latif;T. Tomizawa;S. Enomoto;C. Yonezawa;Yoichi M. Ito
提出了一种内部单标PGAA方法，该方法使用从反应器中引导出来的中子束对大体积样品中的元素进行完全无损分析。除了修正了样品中中子的吸收和散射以及γ射线的吸收所引起的相对γ射线计数效率的变化外，该方法基本上与k0法相同。举例说明了它在陶器、铜镜和大量陨石样品上的应用，并说明了它在动物体内某种元素的分布和代谢的原位研究中的未来应用。
An internal monostandard method for PGAA is proposed for completely non-destructive analysis of elements in bulky samples by the use of a neutron beam guided out from the reactor. The method is essentially the same as the k0 method except that it corrects for the change of relative γ-ray counting efficiencies caused by the absorption and scattering of neutrons and absorption of γ-rays within the sample. Some examples of applications to archaeological samples of earthen wares, bronze mirrors, and to voluminous meteorite samples are demonstrated, and its future application to the in-situ studies of distribution and metabolism of a certain elements in animals is also explained.