cathode ray

简明释义

阴极射线

英英释义

A cathode ray is a stream of electrons emitted from the negative electrode (cathode) of a vacuum tube, which can be manipulated by electric and magnetic fields.

阴极射线是从真空管的负电极(阴极)发出的电子流,可以通过电场和磁场进行调节。

例句

1.The invention of the television was made possible by the discovery of the cathode ray (阴极射线) technology.

电视的发明得益于对阴极射线技术的发现。

2.The cathode ray (阴极射线) experiment helped in understanding atomic structure.

这项阴极射线实验有助于理解原子结构。

3.In early computers, cathode ray (阴极射线) displays were common before LCDs became popular.

在早期计算机中,阴极射线显示器在液晶显示器普及之前是很常见的。

4.Scientists used a cathode ray (阴极射线) tube to demonstrate the properties of electrons.

科学家们使用阴极射线管来演示电子的特性。

5.The cathode ray (阴极射线) tube is a crucial component in older oscilloscopes.

阴极射线管是旧款示波器中的一个关键组件。

作文

The discovery of the cathode ray (阴极射线) has been one of the most significant milestones in the field of physics and technology. In the late 19th century, scientists began experimenting with vacuum tubes, which led to the observation of these mysterious rays emanating from the cathode. The cathode ray (阴极射线) is a stream of electrons that are emitted when a high voltage is applied across the electrodes in a vacuum environment. This phenomenon not only sparked curiosity among physicists but also paved the way for numerous technological advancements.One of the key figures in the study of cathode rays (阴极射线) was J.J. Thomson, who conducted experiments that ultimately led to the identification of the electron as a fundamental particle. His work demonstrated that cathode rays (阴极射线) were negatively charged particles, which challenged the existing theories of atomic structure at the time. This groundbreaking discovery shifted the paradigm in physics and opened up new avenues for research into atomic theory.The implications of cathode rays (阴极射线) extended beyond theoretical physics. They played a crucial role in the development of early television technology. The first televisions used cathode ray tubes (CRTs) to display images. In a CRT, a beam of cathode rays (阴极射线) is directed towards a phosphorescent screen, creating images by illuminating specific areas of the screen. This technology dominated the television industry for decades until the advent of flat-screen displays, which have since replaced CRTs.Moreover, cathode rays (阴极射线) are also utilized in various medical applications, particularly in radiation therapy for cancer treatment. The ability to focus cathode rays (阴极射线) allows for targeted treatment of tumors, minimizing damage to surrounding healthy tissue. The precision of this technology illustrates the ongoing relevance of cathode rays (阴极射线) in contemporary science and medicine.Despite their many applications, cathode rays (阴极射线) also pose certain risks. Prolonged exposure to cathode rays (阴极射线) can lead to harmful effects, including skin burns and increased cancer risk. This has necessitated the development of safety protocols and shielding measures in environments where cathode rays (阴极射线) are used. Understanding the properties and behaviors of cathode rays (阴极射线) is essential for ensuring safe practices in laboratories and medical facilities.In conclusion, the study of cathode rays (阴极射线) has profoundly influenced both theoretical and applied physics. From the early experiments that led to the discovery of the electron to their application in modern technology and medicine, cathode rays (阴极射线) continue to be an area of active research and development. As technology advances, it is likely that new uses for cathode rays (阴极射线) will emerge, reaffirming their significance in the scientific community.

阴极射线的发现是物理学和技术领域中最重要的里程碑之一。在19世纪末,科学家们开始对真空管进行实验,这导致观察到这些神秘的射线从阴极发出。阴极射线是一种电子流,当在真空环境中对电极施加高电压时会释放出来。这一现象不仅引起了物理学家的好奇心,也为众多技术进步铺平了道路。在阴极射线的研究中,J.J.汤姆森是关键人物之一,他的实验最终导致电子作为基本粒子的识别。他的工作表明,阴极射线是带负电的粒子,这挑战了当时原子结构的现有理论。这一突破性发现改变了物理学的范式,并开启了原子理论研究的新途径。阴极射线的影响超越了理论物理。它们在早期电视技术的发展中发挥了至关重要的作用。第一台电视使用阴极射线管(CRT)来显示图像。在CRT中,一束阴极射线被指向荧光屏,通过照亮屏幕的特定区域来创建图像。这项技术在电视行业占据了数十年的主导地位,直到平面显示器的出现,后者已经取代了CRT。此外,阴极射线还在各种医学应用中得到利用,特别是在癌症治疗的放射治疗中。聚焦阴极射线的能力使得肿瘤的靶向治疗成为可能,最小化对周围健康组织的损害。这项技术的精确性说明了阴极射线在当代科学和医学中的持续相关性。尽管阴极射线有许多应用,但它们也存在一定的风险。长时间接触阴极射线可能导致有害影响,包括皮肤烧伤和癌症风险增加。这就需要在使用阴极射线的环境中制定安全协议和屏蔽措施。理解阴极射线的性质和行为对于确保实验室和医疗设施中的安全实践至关重要。总之,阴极射线的研究深刻影响了理论和应用物理。从早期实验导致电子的发现,到它们在现代技术和医学中的应用,阴极射线仍然是活跃的研究和发展的领域。随着技术的进步,预计将会出现阴极射线的新用途,重申它们在科学界的重要性。

相关单词

cathode

cathode详解:怎么读、什么意思、用法