total macroscopic cross section

简明释义

总宏观截面

英英释义

例句

1.To ensure safety, engineers must calculate the total macroscopic cross section 总宏观截面 for all materials used in the reactor.

为了确保安全，工程师必须计算反应堆中所有材料的总宏观截面总宏观截面。

2.The calculation of the total macroscopic cross section 总宏观截面 is essential in nuclear reactor design.

在核反应堆设计中，计算总宏观截面总宏观截面是至关重要的。

3.In particle physics, the total macroscopic cross section 总宏观截面 helps in understanding collision probabilities.

在粒子物理学中，总宏观截面总宏观截面有助于理解碰撞概率。

4.Researchers often use the total macroscopic cross section 总宏观截面 to determine how materials interact with radiation.

研究人员通常使用总宏观截面总宏观截面来确定材料如何与辐射相互作用。

5.The total macroscopic cross section 总宏观截面 can vary significantly depending on the energy of incoming particles.

根据入射粒子的能量，总宏观截面总宏观截面可能会显著变化。

作文

In the field of nuclear physics and radiation transport, understanding the concept of total macroscopic cross section is crucial. The total macroscopic cross section refers to a measure that quantifies the probability of interactions between particles, such as neutrons or photons, and a target material. This parameter is essential for predicting how radiation behaves when it encounters various substances, which has significant implications in areas such as nuclear engineering, medical physics, and radiation safety.To grasp the importance of the total macroscopic cross section, one must first consider its components. The term 'cross section' itself originates from the idea of visualizing a target area where interactions can occur. In simpler terms, it represents an effective area that characterizes the likelihood of a particle interacting with a nucleus or atom within a given material. The 'macroscopic' aspect indicates that this measurement accounts for the density of the material, allowing for a more comprehensive understanding of the interaction on a larger scale.The total macroscopic cross section is typically expressed in units of area per unit volume, such as barns per cubic centimeter. This unit conveys the likelihood of interaction per unit path length traveled by the incident particle. For instance, if a neutron beam passes through a substance with a high total macroscopic cross section, it is more likely to be absorbed or scattered than if it were to pass through a material with a low cross section. This characteristic makes the total macroscopic cross section a vital parameter in designing shielding materials for radiation protection.Moreover, the total macroscopic cross section can vary significantly depending on the energy of the incoming particles and the type of material they are interacting with. For example, certain materials may have a high total macroscopic cross section for thermal neutrons but a much lower value for fast neutrons. This variability is critical when selecting materials for specific applications, such as in nuclear reactors or radiation therapy equipment, where different energy levels of neutrons or photons are involved.In practical applications, engineers and scientists often use the total macroscopic cross section to simulate and model the behavior of radiation in various environments. For instance, in the design of a nuclear reactor, accurate calculations of the total macroscopic cross section for different materials help ensure optimal neutron economy and safety. Similarly, in medical settings, understanding the total macroscopic cross section of tissues can guide the effective delivery of radiation therapy, maximizing tumor destruction while minimizing damage to surrounding healthy tissue.In conclusion, the total macroscopic cross section is a fundamental concept in nuclear physics that plays a pivotal role in understanding particle interactions with matter. Its applications span across multiple fields, including nuclear engineering and medical physics, where precise knowledge of radiation behavior is essential. By comprehensively studying the total macroscopic cross section, researchers and professionals can enhance their ability to design safer and more effective systems for managing radiation, ultimately contributing to advancements in technology and health care.

在核物理和辐射传输领域，理解总宏观截面的概念至关重要。总宏观截面是指量化粒子（如中子或光子）与靶材之间相互作用概率的测量值。这个参数对于预测辐射在遇到各种物质时的行为至关重要，这在核工程、医学物理和辐射安全等领域具有重要意义。要理解总宏观截面的重要性，首先必须考虑其组成部分。“截面”一词本身源于可视化相互作用目标区域的想法。简单来说，它代表了一个有效区域，表征粒子与给定材料内的原子核或原子相互作用的可能性。“宏观”方面表示该测量考虑了材料的密度，从而使我们能够更全面地理解大尺度上的相互作用。总宏观截面通常以每单位体积的面积单位表示，如每立方厘米的巴恩。这一单位传达了每单位路径长度上粒子相互作用的可能性。例如，如果中子束穿过一个具有高总宏观截面的物质，它比穿过一个低截面的材料更有可能被吸收或散射。这一特性使得总宏观截面成为设计辐射防护屏蔽材料的关键参数。此外，总宏观截面会根据入射粒子的能量和它们所相互作用的材料类型显著变化。例如，某些材料对热中子可能具有高总宏观截面，但对快中子则值较低。这种变异性在选择特定应用的材料时至关重要，例如在核反应堆或放射治疗设备中，不同能量水平的中子或光子参与其中。在实际应用中，工程师和科学家常常利用总宏观截面来模拟和建模辐射在各种环境中的行为。例如，在核反应堆的设计中，对不同材料的总宏观截面进行准确计算有助于确保最佳的中子经济性和安全性。同样，在医疗环境中，了解组织的总宏观截面可以指导有效的放射治疗，最大限度地破坏肿瘤，同时减少对周围健康组织的损害。总之，总宏观截面是核物理中的一个基本概念，在理解粒子与物质相互作用方面发挥着关键作用。它的应用跨越多个领域，包括核工程和医学物理，在这些领域中，精确了解辐射行为至关重要。通过全面研究总宏观截面，研究人员和专业人士可以增强他们设计更安全、更有效的辐射管理系统的能力，最终促进技术和医疗保健的进步。