bragg reflection

简明释义

布雷格反射

英英释义

例句

1.In materials science, bragg reflection is crucial for determining the spacing between atomic planes.

在材料科学中，布拉格反射对于确定原子平面之间的间距至关重要。

2.The experiment was designed to maximize bragg reflection to enhance the quality of the data collected.

实验旨在最大化布拉格反射以提高收集数据的质量。

3.The bragg reflection technique is often used in the field of crystallography to analyze the arrangement of atoms.

布拉格反射技术通常用于晶体学领域，以分析原子的排列。

4.The scientist observed a clear bragg reflection in the X-ray diffraction pattern, indicating the presence of a crystalline structure.

科学家在X射线衍射图谱中观察到清晰的布拉格反射，这表明存在晶体结构。

5.Using laser light, the researchers were able to observe bragg reflection from the surface of the crystal.

研究人员使用激光光束观察到了晶体表面的布拉格反射。

作文

The study of materials and their properties has always been a fascinating field of science. Among the various techniques used to analyze materials, one that stands out is the phenomenon known as bragg reflection. This method, named after the physicists William Lawrence Bragg and his father William Henry Bragg, is crucial for understanding the atomic structure of crystals. In essence, bragg reflection refers to the way X-rays or other forms of electromagnetic radiation are scattered by the regular arrangement of atoms in a crystal lattice. When these rays hit the crystal at specific angles, they are reflected in such a way that constructive interference occurs, leading to distinct patterns that can be measured and analyzed.To grasp the significance of bragg reflection, one must first understand the concept of diffraction. Diffraction is the bending of waves around obstacles and openings, which is a fundamental property of all wave phenomena. When X-rays encounter a crystal, the regular spacing of the atoms causes the waves to diffract. The angles at which the waves are constructively interfered with are determined by Bragg's law, which states that nλ = 2d sin(θ), where n is an integer, λ is the wavelength of the incident wave, d is the distance between the crystal planes, and θ is the angle of incidence. This relationship allows scientists to deduce the spacing between the planes of atoms in the crystal.In practical applications, bragg reflection is invaluable in fields such as materials science, chemistry, and solid-state physics. By analyzing the diffraction patterns obtained from bragg reflection, researchers can identify the crystalline structure of a material, determine its purity, and even assess its mechanical properties. For instance, in semiconductor manufacturing, understanding the crystal structure is essential for ensuring the performance of electronic devices. Any defects in the crystal lattice can lead to failures in electronic components, making the analysis of bragg reflection critical for quality control.Moreover, bragg reflection is not limited to X-ray diffraction. Other techniques, such as neutron diffraction and electron diffraction, also utilize the principles of bragg reflection to investigate different types of materials. Each method has its unique advantages, allowing scientists to explore a wide range of substances, from metals to organic compounds.In conclusion, the concept of bragg reflection is a cornerstone of modern crystallography and materials science. Its ability to reveal the atomic structure of materials has profound implications for various scientific and industrial applications. As research continues to advance, the techniques associated with bragg reflection will undoubtedly evolve, leading to new discoveries and innovations that enhance our understanding of the material world. The legacy of Bragg and his contributions to science will continue to influence generations of researchers and engineers, underscoring the importance of this remarkable phenomenon in the quest for knowledge about the universe around us.

材料及其性质的研究一直是一个引人入胜的科学领域。在用于分析材料的各种技术中，有一种现象尤为突出，那就是被称为布拉格反射的方法。这个方法以物理学家威廉·劳伦斯·布拉格和他的父亲威廉·亨利·布拉格的名字命名，对于理解晶体的原子结构至关重要。简单来说，布拉格反射是指X射线或其他形式的电磁辐射被晶体晶格中原子的规则排列散射的方式。当这些射线以特定角度撞击晶体时，它们以一种方式反射，使得发生了建设性干涉，导致可以被测量和分析的独特模式。要理解布拉格反射的重要性，首先必须了解衍射的概念。衍射是波在障碍物和开口周围弯曲的现象，是所有波动现象的基本属性。当X射线遇到晶体时，原子的规则间距使得波发生衍射。波发生建设性干涉的角度由布拉格定律决定，该定律表明nλ = 2d sin(θ)，其中n是整数，λ是入射波的波长，d是晶面之间的距离，θ是入射角。这一关系使科学家能够推导出晶体中原子平面的间距。在实际应用中，布拉格反射在材料科学、化学和固态物理等领域是无价的。通过分析从布拉格反射获得的衍射模式，研究人员可以识别材料的晶体结构，确定其纯度，甚至评估其机械性能。例如，在半导体制造中，理解晶体结构对确保电子设备的性能至关重要。晶格中的任何缺陷都可能导致电子元件的故障，因此分析布拉格反射对于质量控制至关重要。此外，布拉格反射不仅限于X射线衍射。其他技术，如中子衍射和电子衍射，也利用布拉格反射的原理来研究不同类型的材料。每种方法都有其独特的优势，使科学家能够探索广泛的物质，从金属到有机化合物。总之，布拉格反射的概念是现代晶体学和材料科学的基石。它揭示材料原子结构的能力对各种科学和工业应用具有深远的影响。随着研究的不断进展，与布拉格反射相关的技术无疑将不断发展，带来新的发现和创新，增强我们对物质世界的理解。布拉格的遗产及其对科学的贡献将继续影响一代又一代的研究人员和工程师，强调这一卓越现象在探索我们周围宇宙知识的追求中的重要性。