A portable semi-micro-X-ray fluorescence spectrometer for archaeometrical studies ☆
A portable semi-micro-X-ray fluorescence spectrometer for archaeometrical studies ☆
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用于考古研究的便携式半微量X射线荧光光谱仪☆
DOI：
10.1016/j.sab.2004.05.029
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
A. Karydas
中科院分区：
文献类型：
--
作者：
C. Zarkadas;A. Karydas
研制了一种便携式半微x射线荧光（μ-XRF）光谱仪。它采用了一种新型的端窗，电池供电，低功率x射线管（40 kV, 40 μA），以Au为阳极材料，peltier冷却Si-PIN x射线探测器和相关电子设备。探针状x射线管阳极的独特设计允许任何光学元件与管阳极以及样品位置非常紧密地耦合。采用240 μm针孔准直器形成半微光束。为了确定最佳的几何参数和操作参数，进行了蒙特卡罗计算和几组测量。介绍了我们的光谱仪性能的初步结果，并与文献中报道的使用各种光学元件（针孔，多毛细透镜）聚焦x射线的其他微型xrf仪器进行了比较。讨论了该半微型xrf光谱仪在考古研究中的应用前景。
A portable semi-micro-X-ray fluorescence (μ-XRF) spectrometer was developed in the Laboratory for Material Analysis of the N.C.S.R “Demokritos”. It utilizes a novel end-window, battery-operated, low-power X-ray tube (40 kV, 40 μA) with Au as anode material, a peltier cooled Si-PIN X-ray detector and associated electronics. The unique design of the probe-like X-ray tube anode allows very close coupling of any optical component to the tube anode, as well as to the sample position. A 240 μm pin-hole collimator was used to form the semi-microbeam. Monte Carlo calculations, as well as several sets of measurements, were performed, in order to determine the optimum geometrical and operational parameters. Preliminary results about the performance of our spectrometer are presented and compared to those reported in the literature for other micro-XRF instruments utilizing various optical elements (pin-holes, poly-capillary lenses) for focusing X-rays. The potential of this semi-micro-XRF spectrometer in the archaeometrical research is also discussed.