total absorption cross section

简明释义

总吸收截面

英英释义

例句

1.The total absorption cross section can provide insights into the fundamental properties of the target material.

总吸收截面可以提供关于目标材料基本特性的见解。

2.In nuclear physics, the total absorption cross section is crucial for understanding how particles interact with matter.

在核物理中，总吸收截面对于理解粒子如何与物质相互作用至关重要。

3.Calculating the total absorption cross section is essential for designing effective detectors.

计算总吸收截面对于设计有效探测器至关重要。

4.The experiment measured the total absorption cross section of the material to determine its effectiveness in shielding against radiation.

实验测量了材料的总吸收截面以确定其在辐射屏蔽方面的有效性。

5.Researchers found that the total absorption cross section of the isotope increased at higher energies.

研究人员发现，该同位素的总吸收截面在较高能量下增加。

作文

The concept of total absorption cross section is fundamental in the field of nuclear physics and particle interactions. It refers to the effective area that quantifies the likelihood of a particle being absorbed by a target nucleus or material. The total absorption cross section is measured in units of area, typically barns, where one barn equals 10^-28 square meters. This measurement allows physicists to predict how particles, such as neutrons or photons, will interact with various materials. Understanding this concept is crucial for applications ranging from nuclear reactors to medical imaging technologies.In practical terms, when a beam of particles passes through a material, the total absorption cross section helps scientists determine how many particles are likely to be absorbed versus those that will pass through without interaction. A higher total absorption cross section indicates a greater probability of absorption. For example, materials with high atomic numbers tend to have larger total absorption cross sections, making them more effective at absorbing certain types of radiation. This characteristic is particularly important in the design of shielding materials used in radiation protection.Moreover, the total absorption cross section is not a static value; it can vary depending on several factors, including the energy of the incoming particles and the type of material they are interacting with. As particles gain energy, their interaction probabilities change, which in turn affects the total absorption cross section. This variability is essential for researchers who are developing new materials for specific applications, as they must consider how different energies will affect absorption rates.In the realm of astrophysics, the total absorption cross section plays a significant role in understanding stellar processes. For instance, when studying the interactions of neutrinos produced in the core of stars, scientists utilize the total absorption cross section to model how these elusive particles interact with matter. This knowledge helps in deciphering the mechanisms of nuclear fusion and energy production in stars, providing insights into the life cycles of celestial bodies.Furthermore, the total absorption cross section is vital in the development of radiation detectors. These devices rely on the principles of particle absorption to measure radiation levels accurately. By knowing the total absorption cross section of the materials involved, engineers can design detectors that are sensitive to specific types of radiation, enhancing safety protocols in various environments, including hospitals and nuclear power plants.In conclusion, the total absorption cross section is a key parameter in understanding particle interactions across multiple disciplines. Its implications stretch from theoretical physics to practical applications in technology and medicine. By grasping the significance of the total absorption cross section, researchers and professionals can better predict and manipulate the behavior of particles in various environments, ultimately advancing our knowledge and capabilities in science and engineering. The ongoing study of this concept continues to reveal new insights, driving innovation and improving safety standards in areas where radiation is a concern.

“总吸收截面”这一概念在核物理和粒子相互作用领域中具有基础性的重要性。它指的是一个有效面积，量化了粒子被目标核或材料吸收的可能性。“总吸收截面”的单位为面积，通常以巴恩（barn）为单位，其中1巴恩等于10^-28平方米。这一测量使物理学家能够预测粒子（如中子或光子）如何与各种材料相互作用。理解这一概念对于从核反应堆到医学成像技术的应用至关重要。在实际应用中，当一束粒子穿过某种材料时，“总吸收截面”帮助科学家确定有多少粒子可能被吸收，以及有多少粒子会不受影响地通过。较高的“总吸收截面”意味着更大的吸收概率。例如，具有高原子序数的材料往往具有较大的“总吸收截面”，使其在吸收某些类型辐射方面更为有效。这一特性在辐射防护用屏蔽材料的设计中尤为重要。此外，“总吸收截面”并不是一个静态值；它可能会根据多个因素而变化，包括入射粒子的能量和它们与之相互作用的材料类型。当粒子获得能量时，它们的相互作用概率发生变化，从而影响“总吸收截面”。这种可变性对于开发特定应用的新材料的研究人员至关重要，因为他们必须考虑不同能量对吸收率的影响。在天体物理学领域，“总吸收截面”在理解恒星过程方面发挥着重要作用。例如，在研究恒星核心产生的中微子相互作用时，科学家利用“总吸收截面”来模拟这些难以捉摸的粒子与物质的相互作用。这一知识有助于揭示核聚变和恒星能量产生的机制，为我们提供了关于天体生命周期的深入见解。此外，“总吸收截面”在辐射探测器的开发中也至关重要。这些设备依赖于粒子吸收的原理来准确测量辐射水平。通过了解所涉及材料的“总吸收截面”，工程师可以设计出对特定类型辐射敏感的探测器，从而增强医院和核电站等各种环境中的安全协议。总之，“总吸收截面”是理解多学科粒子相互作用的关键参数。它的影响从理论物理扩展到技术和医学中的实际应用。通过掌握“总吸收截面”的重要性，研究人员和专业人士能够更好地预测和操控粒子在各种环境中的行为，最终推动科学和工程领域的知识和能力的进步。对这一概念的持续研究不断揭示新的见解，推动创新，提高辐射相关领域的安全标准。