| 石英单晶无衍射样品板的研制 |
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| 引用本文： | 罗谷风.石英单晶无衍射样品板的研制[J].岩石矿物学杂志,1991,10(1):91-93. |
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| 作者姓名： | 罗谷风 |
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| 作者单位： | 南京大学地球科学系 |
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| 摘 要： | 本文介绍了由作者首创、以石英单晶片制成的一种用于粉晶X射线衍射仪上薄膜样品的底托——单晶无衍射样品板。与常规的玻璃板或者多孔素瓷板及银滤膜等样品底托相比,后二者因系结晶物质,会产生自身的衍射峰;玻璃板则在2?15—37°(Cu靶)间有一个宽大的衍射晕,这些都影响样品衍射花样的准确测定。以平行于石英(11.21)面网切割制成的单晶片,在所测定的2?3一135°范围内不存在任何衍射峰,背景值分布十分平稳,且明显低于玻璃样品板。使用这种新型的单晶无衍射样品板,将有助于提高粉晶X射线衍射仪测定的精确度。
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| 关 键 词： | 单晶 无衍射样品板 石英 X射线 |
Development of the Non-diffraction Holder Made of Quartz Crystal |
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| Luo Gufeng.Development of the Non-diffraction Holder Made of Quartz Crystal[J].Acta Petrologica Et Mineralogica,1991,10(1):91-93. |
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| Authors: | Luo Gufeng |
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| Abstract: | A new type of X-ray powder diffractometric specimen holder made of quartz crystal plate parallel to (11.21) is recommended in this paper. A comparison of this new specimen holder with the holders available indicates that for this holder, instead of having a wide diffraction halo which is shown in the diffractometric curve of glass slide or diffraction peaks produced by specimen holder themselves which are present for unglazed ceramic tile or silver membranaceous filter, there is only an extremely low and smooth background in its diffractometric curve. It is andoubted that this new single-crystal non-diffracted specimen holder invented by the author would be helpful to the improvement of accuracy on determining diffraction patterns in the X-ray diffractometric powder technique. |
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| Keywords: | Single-crystal non-diffracted specimen holder X-ray diffractometrie powder technique |
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