| DNA纤维的X射线衍射分析与双螺旋结构的发现 |
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| 引用本文： | 向义和. DNA纤维的X射线衍射分析与双螺旋结构的发现[J]. 大学物理, 2005, 24(1): 50-58 |
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| 作者姓名： | 向义和 |
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| 作者单位： | 清华大学,物理系,北京,100084 |
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| 摘 要： | 概述了DNA化学结构式确立的过程，介绍了x射线衍射分析的概念、原理和方法，阐述了物理学家威尔金斯和物理化学家富兰克林在用实验事实证明DNA双螺旋结构方面所作出的巨大贡献。
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| 关 键 词： | DNA化学结构 X射线衍射 晶体 布拉格方程 倒易格点 贝塞尔函数 帕特森函数 DNA双螺旋结构 |
| 文章编号： | 1000-0712(2005)01-0050-09 |
| 修稿时间： | 2004-02-23 |
X-ray diffraction analysis of DNA fibre and the discovery of DNA double helies structure |
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| XIANG Yi-he. X-ray diffraction analysis of DNA fibre and the discovery of DNA double helies structure[J]. College Physics, 2005, 24(1): 50-58 |
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| Authors: | XIANG Yi-he |
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| Abstract: | A brief survey of the establishment of DNA chemistry structure is given.The concept,principle and method of X-ray diffraction analysis:crystal, Bragg equation, reciprocal lattice, the method of swing,the transformation of helices are introduced. The remarkable contribution of physicist Wilkins and physicochemicist Franklin to give evidence of the experiment of DNA double helicies structure are discussed. |
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| Keywords: | DNA chemistry structure X-ray diffraction crystal Bragg equation reciprocal lattice Bessel function Ptterson function DNA double helices structure |
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