| Positive deviation from debye‘s theory in small—angle x—ray scattering |
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| 引用本文： | 李志宏,巩雁军,吴东,孙予罕,赵辉,董宝中,吴忠华.Positive deviation from debye‘s theory in small—angle x—ray scattering[J].中国物理 B,2003,12(2):208-210. |
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| 作者姓名： | 李志宏 巩雁军 吴东 孙予罕 赵辉 董宝中 吴忠华 |
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| 作者单位： | (1)Beijing Synchrotron Radiation Laboratory, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China; (2)State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 29973035), by the National Key Basic Research Special Foundation of China (Grant No G200000480) and by the National Natural Science Priority Project Research Special Foundation of China (Grant No 20133040). |
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| 摘 要： | The small-angle x-ray scattering (SAXS) resulting from a non-ideal two-phase system having sharply defined phase boundaries but with micro-fluctuations of electron density within any phase shows a positive deviation from Debye's theory. We have found a simple method suitable for fitting the slit-smeared SAXS data and correcting the positive deviation. The validity of this procedure is tested on porous ZrO_2 xerogel prepared using the sol-gel process.
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| 关 键 词： | 小角度X－射线散射 Debye理论 ZrO2介质 |
| 收稿时间： | 6/3/2002 12:00:00 AM |
Positive deviation from Debye's theory in small-angle x-ray scattering |
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| Li Zhi-Hong,Gong Yan-Jun,Wu Dong,Sun Yu-Han,Zhao Hui,Dong Bao-Zhong and Wu Zhong-Hua.Positive deviation from Debye's theory in small-angle x-ray scattering[J].Chinese Physics B,2003,12(2):208-210. |
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| Authors: | Li Zhi-Hong Gong Yan-Jun Wu Dong Sun Yu-Han Zhao Hui Dong Bao-Zhong and Wu Zhong-Hua |
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| Institution: | State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China; Beijing Synchrotron Radiation Laboratory, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | The small-angle x-ray scattering (SAXS) resulting from a non-ideal two-phase system having sharply defined phase boundaries but with micro-fluctuations of electron density within any phase shows a positive deviation from Debye's theory. We have found a simple method suitable for fitting the slit-smeared SAXS data and correcting the positive deviation. The validity of this procedure is tested on porous ZrO_2 xerogel prepared using the sol-gel process. |
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| Keywords: | small-angle x-ray scattering positive deviation from Debye's theory porous ZrO_2 xerogel |
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