neutron capture reaction

简明释义

中子俘获反应

英英释义

例句

1.The neutron capture reaction (中子俘获反应) is a key process in the production of isotopes used in medical imaging.

在医学成像中，neutron capture reaction (中子俘获反应)是生产同位素的关键过程。

2.Research on neutron capture reactions (中子俘获反应) is crucial for understanding nucleosynthesis in astrophysics.

对neutron capture reactions (中子俘获反应)的研究对于理解天体物理中的核合成至关重要。

3.Scientists are studying how to control neutron capture reactions (中子俘获反应) to improve safety in nuclear waste management.

科学家们正在研究如何控制neutron capture reactions (中子俘获反应)以提高核废料管理的安全性。

4.The process of a star forming heavier elements involves a series of neutron capture reactions (中子俘获反应).

恒星形成更重元素的过程涉及一系列neutron capture reactions (中子俘获反应)。

5.In nuclear reactors, the efficiency of fuel can be increased by optimizing neutron capture reactions (中子俘获反应).

在核反应堆中，通过优化neutron capture reactions (中子俘获反应)可以提高燃料的效率。

作文

The universe is a complex and fascinating place, filled with various phenomena that govern the behavior of matter and energy. One such phenomenon is the neutron capture reaction, a process that plays a crucial role in the formation of elements within stars. Understanding this reaction not only enhances our knowledge of nuclear physics but also sheds light on the origins of the elements that make up our world. In simple terms, a neutron capture reaction occurs when an atomic nucleus absorbs a neutron, leading to the formation of a heavier isotope or a different element altogether. This process is fundamental in stellar nucleosynthesis, where stars produce new elements through nuclear fusion and other reactions. As stars evolve, they undergo various stages of fusion, and during these stages, they can capture neutrons released from other reactions. For instance, in massive stars, the rapid capture of neutrons can lead to the creation of heavy elements like gold and uranium. This process is known as the r-process, or rapid neutron capture process, which is responsible for creating many of the heavy elements found in the universe. On the other hand, there is also the s-process, or slow neutron capture process, which occurs in asymptotic giant branch stars, where neutrons are captured at a slower rate, resulting in the gradual formation of heavier isotopes. The study of neutron capture reactions is not limited to astrophysics; it also has significant implications in nuclear technology and medicine. For example, in nuclear reactors, controlled neutron capture reactions are used to generate energy. When a neutron collides with a fissile material, such as uranium-235, it can initiate a chain reaction that releases a substantial amount of energy. Additionally, neutron capture reactions are utilized in radiation therapy for cancer treatment. Certain isotopes can be targeted with neutrons to induce a reaction that destroys cancer cells while minimizing damage to surrounding healthy tissue. Furthermore, understanding neutron capture reactions helps scientists in the field of nuclear waste management. By knowing how different isotopes behave during these reactions, researchers can develop strategies to safely handle and dispose of nuclear waste. In conclusion, the neutron capture reaction is a fundamental process that not only contributes to our understanding of the universe but also has practical applications in technology and medicine. As we continue to explore the intricacies of nuclear reactions, we uncover the secrets of the cosmos and improve our ability to harness the power of the atom for the benefit of humanity.

宇宙是一个复杂而迷人的地方，充满了各种现象，这些现象支配着物质和能量的行为。其中一个现象是中子捕获反应，这一过程在恒星内部元素的形成中发挥着至关重要的作用。理解这一反应不仅增强了我们对核物理的认识，还揭示了构成我们世界的元素的起源。简单来说，中子捕获反应发生在一个原子核吸收一个中子时，导致形成一个更重的同位素或完全不同的元素。这一过程在恒星核合成中是基础性的，恒星通过核聚变和其他反应产生新元素。在恒星演化过程中，它们经历不同阶段的聚变，并且在这些阶段中，它们可以捕获来自其他反应释放的中子。例如，在大质量恒星中，中子的快速捕获可以导致重元素如金和铀的形成。这个过程被称为r过程，或快速中子捕获过程，负责创造宇宙中许多重元素。另一方面，还有s过程，或慢中子捕获过程，这发生在渐近巨星分支恒星中，在那里中子以较慢的速度被捕获，从而导致更重同位素的逐渐形成。中子捕获反应的研究不仅限于天体物理学；它在核技术和医学中也具有重要意义。例如，在核反应堆中，受控的中子捕获反应用于产生能量。当中子与可裂变材料（如铀-235）碰撞时，它可以引发释放大量能量的链式反应。此外，中子捕获反应还用于癌症治疗中的放射治疗。某些同位素可以通过中子靶向诱导反应，以摧毁癌细胞，同时最小化对周围健康组织的损害。此外，理解中子捕获反应有助于科学家在核废料管理领域的研究。通过了解不同同位素在这些反应中的行为，研究人员可以制定安全处理和处置核废料的策略。总之，中子捕获反应是一个基本过程，不仅有助于我们理解宇宙，还在技术和医学中具有实际应用。随着我们继续探索核反应的复杂性，我们揭示了宇宙的秘密，并提高了利用原子力量造福人类的能力。