electron beam

简明释义

1. 电子束; 2. 电子注; 3. 阴极射线;

英英释义

例句

1.The electron beam is used in electron microscopy to create high-resolution images of specimens.

在电子显微镜中，电子束用于创建高分辨率的样本图像。

2.An electron beam can be used to treat cancer by targeting tumor cells with high precision.

可以使用电子束通过高精度靶向肿瘤细胞来治疗癌症。

3.The research team utilized an electron beam to study the properties of new materials at the atomic level.

研究团队利用电子束在原子层面研究新材料的特性。

4.In semiconductor manufacturing, an electron beam lithography system is essential for patterning integrated circuits.

在半导体制造中，电子束光刻系统对于集成电路的图案化至关重要。

5.The electron beam welding process allows for strong and precise joints in metal fabrication.

电子束焊接过程允许在金属制造中形成强大而精确的接头。

作文

In the realm of modern technology, the term electron beam (电子束) has become increasingly significant. An electron beam is a stream of electrons that are emitted from a source and directed towards a target. This phenomenon is fundamental in various applications, ranging from television screens to advanced scientific research. Understanding the nature and applications of electron beams can provide insights into their crucial role in today's technological landscape.The generation of an electron beam typically involves the use of an electron gun, which is a device designed to produce a focused flow of electrons. The electrons are accelerated through a vacuum tube, allowing them to reach high speeds. This acceleration is achieved by applying a high voltage across the electrodes within the gun. The resulting electron beam is then directed towards a specific target, where it can interact with various materials.One of the most common applications of electron beams is in cathode-ray tubes (CRTs), which were widely used in older television sets and computer monitors. In CRTs, the electron beam is manipulated by magnetic fields to create images on a phosphorescent screen. When the high-speed electrons strike the screen, they excite the phosphor coating, causing it to emit light. This process allows for the display of images, making electron beams essential for visual technology in the past century.Beyond entertainment technology, electron beams play a critical role in industrial applications. For instance, in the field of materials science, electron beam welding is a technique that uses a focused electron beam to join metals together. The high energy of the electron beam melts the materials at the joint, creating a strong bond once cooled. This method is particularly advantageous for welding thin materials or components that require precision and minimal distortion.Moreover, electron beams are employed in the semiconductor industry for lithography processes. In electron beam lithography, a focused electron beam is used to write custom patterns onto a substrate covered with a resist material. This technique enables the fabrication of intricate microchips and nanostructures, which are pivotal in advancing electronic devices. The precision offered by electron beams allows for the production of smaller and more powerful components, driving innovation in various technological fields.In addition to practical applications, electron beams are also utilized in scientific research. Particle accelerators, which are large facilities designed to accelerate charged particles, often use electron beams to study fundamental physics. By colliding electron beams with other particles, researchers can explore the properties of matter and the fundamental forces of nature. These experiments contribute to our understanding of the universe and have led to significant discoveries in particle physics.In conclusion, the significance of electron beams (电子束) in contemporary technology cannot be overstated. From their role in traditional display technologies to their applications in advanced manufacturing and scientific research, electron beams have proven to be indispensable. As technology continues to evolve, the understanding and utilization of electron beams will likely expand, leading to new innovations and discoveries that could further transform our world.

在现代科技领域，术语电子束（电子束）变得越来越重要。电子束是从源头发射并指向目标的电子流。这一现象在各种应用中都是基础，从电视屏幕到先进的科学研究。理解电子束的性质和应用可以提供对其在当今技术背景下关键角色的洞察。生成电子束通常涉及使用电子枪，这是一种旨在产生集中电子流的设备。电子通过真空管加速，使其达到高速。这种加速是通过在枪内的电极之间施加高电压来实现的。由此产生的电子束随后被指向特定目标，在那里它可以与各种材料相互作用。电子束最常见的应用之一是在阴极射线管（CRT）中，后者曾广泛用于旧式电视机和计算机显示器。在CRT中，电子束通过磁场操控，以在荧光屏上创建图像。当高速电子撞击屏幕时，它们激发磷光涂层，导致其发光。这一过程允许图像的显示，使得电子束在过去一个世纪的视觉技术中至关重要。除了娱乐技术外，电子束在工业应用中也发挥着关键作用。例如，在材料科学领域，电子束焊接是一种使用集中电子束将金属连接在一起的技术。电子束的高能量使得接头处的材料熔化，冷却后形成强大的结合。这种方法特别适合焊接薄材料或需要精密和最小变形的组件。此外，电子束还用于半导体工业中的光刻工艺。在电子束光刻中，集中电子束用于在覆盖有抗蚀剂材料的基板上写入自定义图案。这项技术使得复杂的微芯片和纳米结构的制造成为可能，这在推进电子设备方面至关重要。电子束所提供的精度使得生产更小、更强大的组件成为可能，推动了各个技术领域的创新。除了实际应用外，电子束还用于科学研究。粒子加速器是大型设施，旨在加速带电粒子，通常使用电子束来研究基本物理学。通过将电子束与其他粒子碰撞，研究人员可以探索物质的性质和自然的基本力。这些实验有助于我们理解宇宙，并导致粒子物理学中的重大发现。总之，电子束（电子束）在当代技术中的重要性不容小觑。从它们在传统显示技术中的作用到它们在先进制造和科学研究中的应用，电子束已被证明是不可或缺的。随着技术的不断发展，对电子束的理解和利用可能会扩展，从而导致新的创新和发现，这可能进一步改变我们的世界。