| X射线线形的解卷分析与Bragg角的精确计算 |
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| 引用本文： | 刘刚,卢柯,梁志德. X射线线形的解卷分析与Bragg角的精确计算[J]. 物理学报, 2000, 49(8): 1520-1523 |
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| 作者姓名： | 刘刚 卢柯 梁志德 |
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| 作者单位： | (1)东北大学材料科学与工程系，沈阳 110006; (2)中国科学院金属研究所快速凝固非平衡合金国家重点实验室，沈阳 110015 |
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| 基金项目： | 国家自然科学基金(批准号：59625101和59771019)和中国博士后科学基金资助的课题. |
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| 摘 要： | 采用解析函数模拟X射线线形, 在排除实验测试误差影响的条件下, 研究仪器宽化修正过程中各种因素如Kα双线、线形宽度和原点选取等对傅里叶系数和真实线形的影响;分析了从傅里叶系数或真实线形分离晶粒尺寸和微观应变的可靠性; 提出了无任何假设的前提下, 由实测线形的解卷计算求得精确Bragg角的方法.关键词：X射线线形傅里叶变换真实线形Bragg角
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| 关 键 词： | X射线线形 傅里叶变换 真实线形 Bragg角 |
| 收稿时间： | 1999-12-17 |
ANALYSIS OF THE DECONVOLUTION OF X-RAY DIFFRACTION PROFILE AND SIMULTANEOUS CALCULATION OF BRAGG ANGLE |
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| LIU GANG,LU KE,LIANG ZHI-DE. ANALYSIS OF THE DECONVOLUTION OF X-RAY DIFFRACTION PROFILE AND SIMULTANEOUS CALCULATION OF BRAGG ANGLE[J]. Acta Physica Sinica, 2000, 49(8): 1520-1523 |
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| Authors: | LIU GANG LU KE LIANG ZHI-DE |
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| Abstract: | To eliminate the influence of experimental error, analytical function is adopted to model the experimental profiles. Much attention has been paid to the analysis of the effects of such factors as Kα doublet, broadening and alignment of profiles etc. on the Fourier coefficients and deconvoluted profile obtained from the Stokes correction.The reliability of the separation of size-and strain-broadening from Fourier coefficients or deconvoluted profile is estimated. A method is proposed for the simultaneous refinement of accurate Bragg angle from the deconvolution procedure. |
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| Keywords: | X-ray diffraction profile Fourier transforms physical profile Bragg angle |
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