radiative capture

简明释义

辐射俘获

英英释义

例句

1.The efficiency of radiative capture can significantly affect the outcomes of nuclear reactions.

在核反应中，辐射捕获的效率可以显著影响结果。

2.In nuclear physics, the process of radiative capture refers to the absorption of a neutron by a nucleus accompanied by the emission of gamma rays.

在核物理中，辐射捕获的过程是指一个原子核吸收一个中子并伴随着伽马射线的发射。

3.In astrophysics, radiative capture plays a key role in the formation of heavier elements in stars.

在天体物理学中，辐射捕获在恒星中重元素的形成中起着关键作用。

4.Researchers are studying radiative capture to improve the design of nuclear reactors.

研究人员正在研究辐射捕获以改进核反应堆的设计。

5.The phenomenon of radiative capture is crucial for understanding stellar nucleosynthesis.

理解恒星核合成的过程中，辐射捕获现象至关重要。

作文

Radiative capture is a fundamental concept in nuclear physics that plays a crucial role in understanding how atomic nuclei interact with one another. This process involves the absorption of a photon by a nucleus, leading to an increase in the energy state of that nucleus. Essentially, when a nucleus captures a photon, it can transition to a higher energy level, which may result in various nuclear reactions or transformations. The significance of radiative capture (辐射捕获) extends beyond theoretical physics; it has practical implications in fields such as astrophysics, nuclear engineering, and medical imaging.In astrophysics, radiative capture (辐射捕获) is instrumental in the formation of heavier elements in stars. During stellar nucleosynthesis, lighter elements undergo fusion processes, and the capture of photons can facilitate the transformation of these elements into heavier ones. For instance, during certain stages of a star's life cycle, the energy from emitted photons can be absorbed by surrounding nuclei, leading to the synthesis of elements like carbon, oxygen, and iron. This process not only contributes to the abundance of elements in the universe but also influences the lifecycle of stars and the dynamics of galaxies.Moreover, radiative capture (辐射捕获) is significant in nuclear reactors, where controlled nuclear reactions are essential for energy production. In a reactor, neutrons are often captured by uranium or plutonium nuclei, resulting in fission reactions that release vast amounts of energy. While this process primarily involves neutron capture, the principles of radiative capture (辐射捕获) can also apply when considering the interactions of gamma rays produced during fission. Understanding these interactions helps engineers design safer and more efficient reactors, enhancing our ability to harness nuclear energy sustainably.In the realm of medical imaging, radiative capture (辐射捕获) is utilized in techniques such as positron emission tomography (PET). In PET scans, radioactive tracers emit positrons that interact with electrons in the body, resulting in the release of gamma photons. The principles of radiative capture (辐射捕获) come into play as the emitted photons are detected and used to create detailed images of metabolic processes within the body. This non-invasive imaging technique has transformed diagnostics, allowing for early detection of diseases like cancer and monitoring of treatment efficacy.Furthermore, research into radiative capture (辐射捕获) continues to evolve, with scientists exploring its applications in advanced materials and quantum technologies. By manipulating the conditions under which radiative capture (辐射捕获) occurs, researchers aim to develop new materials with unique properties, such as enhanced superconductivity or improved energy storage capabilities. This ongoing exploration highlights the interconnectedness of various scientific disciplines and the importance of radiative capture (辐射捕获) in driving innovation.In conclusion, radiative capture (辐射捕获) is a pivotal process in nuclear physics with far-reaching implications across multiple fields. Its role in stellar nucleosynthesis, nuclear energy production, medical imaging, and emerging technologies underscores its significance in both theoretical and applied sciences. As our understanding of this phenomenon deepens, we can expect to uncover new insights and applications that will continue to shape our world.

辐射捕获是核物理学中的一个基本概念，对于理解原子核之间的相互作用至关重要。这个过程涉及到一个光子被核吸收，导致该核的能量状态增加。本质上，当一个核捕获一个光子时，它可以转变到更高的能量水平，这可能导致各种核反应或转变。辐射捕获（radiative capture）的重要性不仅限于理论物理；它在天体物理学、核工程和医学成像等领域具有实际应用。在天体物理学中，辐射捕获（radiative capture）在恒星中重元素的形成中发挥着重要作用。在恒星核合成过程中，轻元素经历融合过程，而光子的捕获可以促进这些元素转变为更重的元素。例如，在恒星生命周期的某些阶段，释放的光子能量可以被周围的核吸收，从而合成碳、氧和铁等元素。这个过程不仅有助于宇宙中元素的丰度，还影响恒星的生命周期和星系的动态。此外，辐射捕获（radiative capture）在核反应堆中也很重要，在那里，受控的核反应对能源生产至关重要。在反应堆中，中子通常被铀或钚核捕获，导致裂变反应释放出大量能量。虽然这个过程主要涉及中子捕获，但在考虑裂变过程中产生的伽马射线的相互作用时，辐射捕获（radiative capture）的原理也可以适用。理解这些相互作用有助于工程师设计更安全、更高效的反应堆，从而增强我们可持续利用核能的能力。在医学成像领域，辐射捕获（radiative capture）被用于正电子发射断层扫描（PET）等技术。在PET扫描中，放射性示踪剂发出正电子，与体内电子相互作用，导致伽马光子的释放。辐射捕获（radiative capture）的原理在这里发挥作用，因为发射的光子被检测并用于创建体内代谢过程的详细图像。这种非侵入性成像技术已经改变了诊断方法，使得早期发现癌症等疾病以及监测治疗效果成为可能。此外，关于辐射捕获（radiative capture）的研究仍在不断发展，科学家们正在探索其在先进材料和量子技术中的应用。通过操控辐射捕获（radiative capture）发生的条件，研究人员希望开发出具有独特特性的材料，例如增强超导性或改善能量存储能力。这一持续探索突显了各个科学学科之间的相互联系，以及辐射捕获（radiative capture）在推动创新中的重要性。总之，辐射捕获（radiative capture）是核物理学中的一个关键过程，具有广泛的多领域影响。它在恒星核合成、核能生产、医学成像和新兴技术中的作用强调了它在理论和应用科学中的重要性。随着我们对这一现象的理解加深，我们可以期待揭示新的见解和应用，这将继续塑造我们的世界。