mean free path for capture

简明释义

俘获平均自由程

英英释义

例句

1.Understanding the mean free path for capture 捕获的平均自由程 can improve the design of fusion reactors.

理解捕获的平均自由程 mean free path for capture 可以改善聚变反应堆的设计。

2.The mean free path for capture 捕获的平均自由程 helps in determining the effectiveness of radiation shielding materials.

计算捕获的平均自由程 mean free path for capture 有助于确定辐射屏蔽材料的有效性。

3.Researchers are studying the mean free path for capture 捕获的平均自由程 of electrons in various gases.

研究人员正在研究不同气体中电子的捕获的平均自由程 mean free path for capture。

4.In nuclear physics, the calculation of the mean free path for capture 捕获的平均自由程 is crucial for understanding neutron interactions.

在核物理学中，计算捕获的平均自由程 mean free path for capture 对于理解中子相互作用至关重要。

5.The mean free path for capture 捕获的平均自由程 is influenced by temperature and pressure conditions.

温度和压力条件会影响捕获的平均自由程 mean free path for capture。

作文

The concept of the mean free path for capture is fundamental in understanding various physical processes, particularly in fields like physics and engineering. To grasp this idea, we first need to break down what 'mean free path' means. In general, the mean free path refers to the average distance a particle travels before it collides with another particle. This concept is crucial in the study of gases, where particles are in constant motion and frequently collide with one another. The mean free path can be influenced by several factors, including temperature, pressure, and the nature of the gas itself.When we specifically talk about the mean free path for capture in the context of particle interactions, we are referring to the average distance a particle must travel before it is captured by another particle, such as in nuclear reactions or chemical processes. This concept is particularly important in areas such as astrophysics, where particles in space interact under extreme conditions, or in nuclear reactors, where neutrons must be captured by fuel nuclei to sustain a chain reaction.To illustrate the significance of the mean free path for capture, let’s consider a practical example in nuclear physics. In a nuclear reactor, neutrons are produced through fission reactions. These neutrons must collide with fissile material, such as uranium-235, to induce further fission reactions. The probability of a neutron being captured by a uranium nucleus depends on its energy and the mean free path for capture. If the mean free path is short, it indicates that neutrons are more likely to be captured quickly, leading to a more efficient reaction. Conversely, if the mean free path is long, the neutrons may escape without interacting, which can diminish the reactor's efficiency.Moreover, the mean free path for capture is not only relevant in nuclear physics but also in atmospheric sciences. For instance, when considering how pollutants disperse in the atmosphere, understanding the mean free path can help scientists predict how long it will take for these particles to interact with other components in the air, such as water vapor or other gases. This interaction can lead to various chemical reactions that impact air quality and climate.In conclusion, the mean free path for capture is a critical concept that plays a vital role in many scientific disciplines. By understanding the average distance a particle travels before being captured, researchers can make informed predictions about the behavior of particles in different environments. Whether in a nuclear reactor or the atmosphere, the implications of this concept are far-reaching, affecting everything from energy production to environmental science. As we continue to explore the complexities of the universe, the mean free path for capture will undoubtedly remain an essential element of our understanding of physical interactions.

“捕获的平均自由程”这一概念在理解各种物理过程时至关重要，特别是在物理和工程等领域。要掌握这个概念，我们首先需要拆解“平均自由程”的含义。一般来说，平均自由程是指粒子在与另一粒子碰撞之前所能行进的平均距离。这个概念在气体研究中至关重要，因为气体中的粒子处于不断运动中，并且经常相互碰撞。平均自由程会受到多种因素的影响，包括温度、压力以及气体本身的性质。当我们特别讨论“捕获的平均自由程”时，我们指的是粒子在被另一个粒子捕获之前必须行进的平均距离，例如在核反应或化学过程中。这个概念在天体物理学等领域尤为重要，在这些领域中，太空中的粒子在极端条件下相互作用，或者在核反应堆中，中子必须被燃料核捕获以维持链式反应。为了说明“捕获的平均自由程”的重要性，让我们考虑一个核物理学中的实际例子。在核反应堆中，中子通过裂变反应产生。这些中子必须与裂变材料（如铀-235）碰撞，以诱导进一步的裂变反应。中子被铀核捕获的概率取决于其能量和“捕获的平均自由程”。如果平均自由程较短，则表明中子更可能快速被捕获，从而导致反应效率更高。相反，如果平均自由程较长，中子可能在不与之相互作用的情况下逃逸，这会降低反应堆的效率。此外，“捕获的平均自由程”不仅在核物理中相关，在大气科学中也同样重要。例如，在考虑污染物如何在大气中扩散时，理解平均自由程可以帮助科学家预测这些粒子与空气中其他成分（如水蒸气或其他气体）相互作用所需的时间。这种相互作用可能导致各种化学反应，从而影响空气质量和气候。总之，“捕获的平均自由程”是一个关键概念，在许多科学学科中发挥着重要作用。通过理解粒子在被捕获之前必须行进的平均距离，研究人员可以对不同环境中粒子的行为做出明智的预测。无论是在核反应堆中还是在大气中，这一概念的影响都十分深远，影响从能源生产到环境科学的方方面面。随着我们继续探索宇宙的复杂性，“捕获的平均自由程”无疑将仍然是我们理解物理相互作用的重要元素。