townsend coefficient

简明释义

特度德系数

英英释义

例句

1.Researchers often compare the townsend coefficient 汤斯伦系数 of different gases to assess their ionization efficiency.

研究人员经常比较不同气体的汤斯伦系数 townsend coefficient 以评估它们的电离效率。

2.To calculate the electric field strength, one must consider the townsend coefficient 汤斯伦系数 of the gas involved.

要计算电场强度，必须考虑所涉及气体的汤斯伦系数 townsend coefficient。

3.The townsend coefficient 汤斯伦系数 can vary significantly with pressure and temperature.

在压力和温度变化下，汤斯伦系数 townsend coefficient 可能会有显著变化。

4.In plasma physics, the townsend coefficient 汤斯伦系数 helps to predict discharge behavior in gases.

在等离子体物理中，汤斯伦系数 townsend coefficient 有助于预测气体中的放电行为。

5.The measurement of the townsend coefficient 汤斯伦系数 is crucial in understanding gas ionization processes.

测量汤斯伦系数 townsend coefficient 对理解气体电离过程至关重要。

作文

The concept of the townsend coefficient is pivotal in the field of gas discharge physics and plasma technology. This coefficient quantifies the relationship between the electric field and the ionization processes occurring within a gas under the influence of that field. Understanding the townsend coefficient allows scientists and engineers to predict how gases will behave when subjected to high voltages, which is crucial for the design of various electrical devices, including gas lasers, neon lights, and even certain types of particle accelerators.To delve deeper into the significance of the townsend coefficient, it is essential to understand its historical context. Named after the physicist John Sealy Townsend, this coefficient emerged from his extensive research on the ionization of gases in the early 20th century. Townsend discovered that when an electric field is applied to a gas, it can lead to the formation of positive ions and electrons through a process known as ionization. The townsend coefficient essentially measures how effectively these ions can create further ionizations, leading to an avalanche effect that can result in a complete discharge.The mathematical representation of the townsend coefficient involves several variables, including the electric field strength and the mean free path of electrons in the gas. The coefficient itself is often denoted by the symbol α (alpha) and is defined as the rate of ionization per unit length of the gas. A higher townsend coefficient indicates a greater propensity for ionization, which can lead to more significant current flow in a gas discharge tube.In practical applications, the townsend coefficient plays a critical role in designing devices that rely on controlled gas ionization. For instance, in gas discharge lamps, understanding the townsend coefficient helps engineers optimize the conditions under which the lamp operates, ensuring efficient light production while minimizing energy consumption. Similarly, in the field of plasma physics, the townsend coefficient is vital for creating and maintaining plasmas used in semiconductor manufacturing and other advanced technologies.Moreover, the townsend coefficient is not only limited to theoretical calculations but also has empirical significance. Experimental measurements of the townsend coefficient can provide insights into the properties of different gases, such as their ionization energies and collision cross-sections. By comparing the townsend coefficient of various gases, researchers can determine which gases are best suited for specific applications, whether it be in lighting technology or atmospheric studies.In conclusion, the townsend coefficient is a fundamental parameter that bridges the gap between theory and application in the realm of gas ionization and discharge phenomena. Its implications extend across numerous fields, making it a crucial element in the development of electrical devices and technologies. As we continue to explore the complexities of gas behavior under electric fields, the townsend coefficient will undoubtedly remain a central focus of research and innovation, driving advancements in both scientific understanding and practical applications in our daily lives.

“townsend coefficient”的概念在气体放电物理和等离子体技术领域中至关重要。这个系数量化了电场与气体在该电场影响下发生的电离过程之间的关系。理解townsend coefficient使科学家和工程师能够预测在高电压下气体的行为，这对于设计各种电气设备至关重要，包括气体激光器、霓虹灯，甚至某些类型的粒子加速器。深入探讨townsend coefficient的重要性，有必要了解其历史背景。这个系数以物理学家约翰·西利·汤森德的名字命名，源于他在20世纪初对气体电离的广泛研究。汤森德发现，当电场施加到气体上时，它可以通过一种称为电离的过程导致正离子和电子的形成。townsend coefficient本质上衡量这些离子产生进一步电离的有效性，从而导致可能导致完全放电的雪崩效应。townsend coefficient的数学表示涉及多个变量，包括电场强度和气体中电子的平均自由程。该系数通常用符号α（阿尔法）表示，定义为单位长度气体的电离速率。较高的townsend coefficient表明电离的倾向更大，这可能导致气体放电管中更显著的电流流动。在实际应用中，townsend coefficient在设计依赖于受控气体电离的设备中发挥着关键作用。例如，在气体放电灯中，理解townsend coefficient有助于工程师优化灯具操作的条件，确保高效的光生产，同时最小化能耗。同样，在等离子体物理领域，townsend coefficient对创建和维持用于半导体制造和其他先进技术的等离子体至关重要。此外，townsend coefficient不仅限于理论计算，还具有经验意义。对townsend coefficient的实验测量可以提供关于不同气体特性的见解，例如它们的电离能和碰撞截面。通过比较各种气体的townsend coefficient，研究人员可以确定哪些气体最适合特定应用，无论是在照明技术还是大气研究中。总之，townsend coefficient是一个基本参数，连接了气体电离和放电现象理论与应用之间的桥梁。它的影响扩展到多个领域，使其成为电气设备和技术发展的关键元素。随着我们继续探索气体在电场下行为的复杂性，townsend coefficient无疑将继续成为研究和创新的中心焦点，推动科学理解和我们日常生活中实际应用的进步。