cathode ray luminescence

简明释义

阴极射线发光

英英释义

例句

1.Scientists use cathode ray luminescence to study materials under electron beams in laboratories.

科学家们在实验室中使用阴极射线发光研究电子束下的材料。

2.In physics class, we learned that cathode ray luminescence is crucial for understanding how traditional CRT monitors work.

在物理课上，我们了解到阴极射线发光对于理解传统CRT显示器的工作原理至关重要。

3.The vibrant colors produced by cathode ray luminescence are a result of different phosphor materials used in screens.

阴极射线发光产生的鲜艳色彩是由于屏幕中使用了不同的磷光材料。

4.The discovery of cathode ray luminescence paved the way for advancements in display technology.

阴极射线发光的发现为显示技术的进步铺平了道路。

5.The old television set displayed images using cathode ray luminescence, which is a process where electrons strike a phosphorescent surface.

旧电视机通过使用阴极射线发光显示图像，这是一种电子撞击磷光表面的过程。

作文

The phenomenon of cathode ray luminescence has fascinated scientists and researchers for over a century. This intriguing process occurs when cathode rays, which are streams of electrons emitted from a cathode in a vacuum tube, strike a phosphorescent material, causing it to emit light. The study of cathode ray luminescence has not only advanced our understanding of electron behavior but has also laid the groundwork for numerous technological innovations, including television screens and computer monitors.To understand cathode ray luminescence, we must first delve into the nature of cathode rays. These rays were discovered in the late 19th century by J.J. Thomson, who identified them as streams of negatively charged particles—electrons. When these electrons are accelerated through a high voltage in a vacuum tube, they gain significant energy. Upon colliding with a phosphorescent material, such as zinc sulfide or strontium aluminate, the energy from the electrons excites the atoms in the material. As these excited atoms return to their ground state, they release energy in the form of visible light, resulting in what we observe as luminescence.Historically, cathode ray luminescence was pivotal in the development of early display technologies. The first cathode ray tube (CRT) televisions utilized this principle to create images on the screen. By manipulating the direction of the cathode rays, engineers could illuminate specific areas of the phosphorescent screen, thereby forming pictures. This technology dominated the television and computer monitor markets for decades until the advent of flat-screen technologies, such as liquid crystal displays (LCDs) and light-emitting diodes (LEDs).Moreover, cathode ray luminescence has applications beyond traditional displays. In scientific research, it is used in cathode ray fluorescence microscopy, a powerful technique that allows researchers to visualize the distribution of elements within a sample. By analyzing the light emitted from a sample when subjected to cathode rays, scientists can gain insights into its composition and structure, leading to advancements in fields such as materials science and biology.The implications of cathode ray luminescence extend into the realm of entertainment and art as well. Artists have experimented with cathode ray tubes to create mesmerizing light displays and interactive installations. The unique properties of luminescence can be harnessed to produce dynamic visuals that captivate audiences, merging science with creative expression.In conclusion, cathode ray luminescence is not merely a scientific curiosity; it is a fundamental principle that has influenced various aspects of modern technology and culture. From its role in the evolution of display devices to its applications in scientific research and artistic endeavors, understanding this phenomenon enriches our appreciation of both the natural world and human ingenuity. The continued exploration of cathode ray luminescence promises to unveil new possibilities, reminding us that the intersection of science and creativity leads to remarkable innovations and discoveries.

“阴极射线发光”现象吸引了科学家和研究人员超过一个世纪。这一有趣的过程发生在阴极射线（即从真空管中的阴极发出的电子流）撞击磷光材料时，导致其发出光。对“阴极射线发光”的研究不仅提高了我们对电子行为的理解，还为包括电视屏幕和计算机显示器在内的众多技术创新奠定了基础。要理解“阴极射线发光”，我们必须首先深入了解阴极射线的性质。这些射线是由J.J.汤姆森在19世纪末发现的，他将其识别为负电荷粒子的流动——电子。当这些电子在真空管中通过高电压加速时，它们会获得显著的能量。在与磷光材料（如硫化锌或铝酸钡）碰撞时，电子的能量激发了材料中的原子。当这些激发的原子返回到基态时，它们以可见光的形式释放能量，从而导致我们观察到的发光现象。历史上，“阴极射线发光”在早期显示技术的发展中发挥了关键作用。第一台阴极射线管（CRT）电视利用这一原理在屏幕上创建图像。通过操控阴极射线的方向，工程师可以照亮磷光屏幕的特定区域，从而形成图像。这项技术在电视和计算机显示器市场上主导了数十年，直到平面显示技术（如液晶显示器（LCD）和发光二极管（LED））的出现。此外，“阴极射线发光”在传统显示之外也有应用。在科学研究中，它用于阴极射线荧光显微镜，这是一种强大的技术，可以让研究人员可视化样品中元素的分布。通过分析样品在阴极射线照射下发出的光，科学家可以深入了解其成分和结构，从而推动材料科学和生物学等领域的进步。“阴极射线发光”的影响还扩展到娱乐和艺术领域。艺术家们已开始利用阴极射线管创造迷人的灯光展示和互动装置。发光的独特特性可以被用来产生动态视觉效果，吸引观众，融合科学与创意表达。总之，“阴极射线发光”不仅仅是科学的好奇心；它是一项基本原理，影响着现代技术和文化的各个方面。从它在显示设备演变中的作用，到在科学研究和艺术创作中的应用，理解这一现象丰富了我们对自然世界和人类智慧的欣赏。对“阴极射线发光”的持续探索有望揭示新的可能性，提醒我们科学与创造力的交汇带来了显著的创新和发现。