collision cross section

简明释义

碰撞横截面

英英释义

例句

1.A larger collision cross section 碰撞截面 indicates a higher probability of interaction between particles.

较大的碰撞截面表示粒子之间相互作用的概率更高。

2.In nuclear physics, the collision cross section 碰撞截面 is crucial for understanding reactions.

在核物理中，碰撞截面对于理解反应至关重要。

3.Calculating the collision cross section 碰撞截面 helps predict the outcomes of particle collisions.

计算碰撞截面有助于预测粒子碰撞的结果。

4.The physicists measured the collision cross section 碰撞截面 of the particles during the experiment.

物理学家在实验中测量了粒子的碰撞截面。

5.The team focused on the collision cross section 碰撞截面 of neutrinos to improve detection methods.

团队专注于中微子的碰撞截面以改善探测方法。

作文

The concept of collision cross section is fundamental in the field of physics, particularly in the study of particle interactions. It refers to a measure of the probability that a particular interaction will occur between particles when they collide. In simpler terms, it can be thought of as an effective area that quantifies how likely two particles are to collide with each other. The larger the collision cross section, the greater the likelihood of interaction. This concept is crucial for understanding various phenomena in nuclear and particle physics, as well as in fields like astrophysics and chemistry.When we talk about particle collisions, such as those occurring in particle accelerators, the collision cross section plays a vital role in determining the outcome of experiments. For instance, in high-energy physics experiments at facilities like CERN, scientists collide protons at incredibly high speeds to investigate fundamental particles and forces. The collision cross section helps researchers predict how often certain types of collisions will happen, which in turn informs them about the potential results of these experiments.Moreover, the collision cross section is not a constant value; it can vary depending on several factors including the energy of the colliding particles and the nature of the interaction. For example, in quantum mechanics, the collision cross section can exhibit different behaviors based on whether the particles are fermions or bosons. This variability is essential for theoretical predictions and for interpreting experimental data accurately.In addition to its applications in particle physics, the collision cross section is also significant in other areas such as atmospheric science and radiation shielding. For instance, when studying how cosmic rays interact with the Earth's atmosphere, scientists use the concept of collision cross section to estimate how often these high-energy particles will collide with atmospheric molecules. This information is critical for understanding the effects of cosmic rays on climate and atmospheric chemistry.Furthermore, in the realm of nuclear engineering, the collision cross section is used to calculate how neutrons interact with nuclear fuel. In nuclear reactors, understanding the collision cross section of neutrons with various materials allows engineers to optimize the design and efficiency of reactors, ensuring safe and effective energy production.In conclusion, the collision cross section is a pivotal concept in understanding particle interactions across various scientific disciplines. Its ability to quantify the likelihood of collisions makes it indispensable for both theoretical studies and practical applications in research and technology. As our understanding of the universe deepens, the importance of the collision cross section will undoubtedly continue to grow, guiding scientists in their quest to unravel the mysteries of matter and energy.

“碰撞截面”这一概念在物理学领域，尤其是在粒子相互作用的研究中是至关重要的。它指的是当粒子发生碰撞时，特定相互作用发生的概率的度量。简单来说，可以将其视为一个有效面积，用于量化两个粒子相互碰撞的可能性。“碰撞截面”越大，相互作用的可能性就越大。这个概念对于理解核物理、粒子物理以及天体物理和化学等领域的各种现象至关重要。当我们谈论粒子碰撞时，例如在粒子加速器中发生的碰撞，“碰撞截面”在确定实验结果方面发挥着重要作用。例如，在CERN等高能物理实验室，科学家以极高的速度碰撞质子，以探讨基本粒子和力。“碰撞截面”帮助研究人员预测某些类型的碰撞发生的频率，这反过来又告知他们关于这些实验潜在结果的信息。此外，“碰撞截面”并不是一个常数值；它会根据多种因素变化，包括碰撞粒子的能量和相互作用的性质。例如，在量子力学中，“碰撞截面”可能会根据粒子是费米子还是玻色子而表现出不同的行为。这种变化性对于理论预测和准确解释实验数据至关重要。除了在粒子物理学中的应用外，“碰撞截面”在大气科学和辐射屏蔽等其他领域也具有重要意义。例如，在研究宇宙射线如何与地球大气相互作用时，科学家使用“碰撞截面”的概念来估算这些高能粒子与大气分子碰撞的频率。这些信息对于理解宇宙射线对气候和大气化学的影响至关重要。此外，在核工程领域，“碰撞截面”用于计算中子与核燃料的相互作用。在核反应堆中，了解中子与各种材料的“碰撞截面”使工程师能够优化反应堆的设计和效率，确保安全有效的能源生产。总之，“碰撞截面”是理解各科学学科中粒子相互作用的关键概念。它能够量化碰撞的可能性，使其在理论研究和实际应用中不可或缺。随着我们对宇宙理解的加深，“碰撞截面”的重要性无疑会继续增长，引导科学家们揭开物质和能量的奥秘。