prompt neutron

简明释义

即发中子

英英释义

例句

1.The prompt neutron 瞬发中子 emission rate can indicate the efficiency of the nuclear reaction.

瞬发中子 瞬发中子的发射率可以指示核反应的效率。

2.The detection of a prompt neutron 瞬发中子 signal is crucial for monitoring reactor safety.

检测到瞬发中子 瞬发中子信号对于监测反应堆安全至关重要。

3.During the experiment, scientists measured the energy of the emitted prompt neutron 瞬发中子 to understand the fission process better.

在实验过程中，科学家测量了释放的瞬发中子 瞬发中子的能量，以更好地理解裂变过程。

4.In radiation therapy, prompt neutrons 瞬发中子 can be used to target cancer cells more effectively.

在放射治疗中，瞬发中子 瞬发中子可以更有效地靶向癌细胞。

5.In nuclear reactors, the release of a prompt neutron 瞬发中子 can initiate a rapid chain reaction.

在核反应堆中，释放的瞬发中子 瞬发中子可以引发快速的链式反应。

作文

In the field of nuclear physics, one term that often arises is prompt neutron. Understanding this concept is crucial for comprehending various nuclear reactions and their applications. A prompt neutron refers to a neutron that is emitted immediately during a nuclear fission event, as opposed to delayed neutrons which are emitted after a certain period of time. This distinction is vital because the immediate release of neutrons can significantly influence the chain reaction in a nuclear reactor. When a heavy nucleus, such as uranium-235 or plutonium-239, absorbs a neutron, it becomes unstable and undergoes fission. During this process, it splits into smaller nuclei and releases energy, along with several prompt neutrons that can initiate further fission events. The role of prompt neutrons in sustaining a nuclear chain reaction cannot be overstated. In a controlled environment, such as a nuclear reactor, these neutrons are essential for maintaining the balance between fission and absorption. The reactor's design must ensure that enough prompt neutrons are produced to keep the reaction going while preventing it from becoming uncontrollable. For instance, in a typical pressurized water reactor, the presence of moderators like water slows down the prompt neutrons, making them more likely to cause further fission reactions. Moreover, the timing of prompt neutrons is critical when considering the safety mechanisms in nuclear power plants. Engineers must account for the rapid emission of these neutrons when designing control systems. If too many prompt neutrons are produced too quickly, it can lead to a supercritical state, resulting in an uncontrolled release of energy. Therefore, understanding the behavior of prompt neutrons is fundamental not only for the operation of reactors but also for ensuring their safety and efficiency. In addition to their importance in power generation, prompt neutrons also play a significant role in nuclear weapons. The rapid release of these neutrons is one of the key factors that contribute to the explosive power of a nuclear bomb. When a critical mass of fissile material is achieved, the resulting prompt neutrons can create a fast and uncontrollable chain reaction, leading to a massive release of energy in the form of an explosion. This aspect highlights the dual-use nature of nuclear technology, where the same principles can be applied for both peaceful energy production and destructive weaponry. In summary, the concept of prompt neutron is integral to the understanding of nuclear fission processes. These neutrons are emitted immediately during fission events and play a pivotal role in sustaining chain reactions in nuclear reactors and weapons alike. As we continue to explore nuclear technology, the significance of prompt neutrons will remain a central focus in both scientific research and practical applications. By grasping the importance of these particles, we can better appreciate the complexities and responsibilities associated with harnessing nuclear energy. In conclusion, the study of prompt neutrons not only enhances our understanding of nuclear physics but also underscores the importance of safety and control in nuclear technology. As we move forward, it is essential to continue researching and developing methods to manage these powerful forces responsibly, ensuring that they are used for the benefit of humanity rather than its detriment.

在核物理领域，一个经常出现的术语是prompt neutron。理解这个概念对于理解各种核反应及其应用至关重要。prompt neutron指的是在核裂变事件中立即释放的中子，而不是延迟中子，后者是在一定时间后释放的。这一区别至关重要，因为中子的即时释放可以显著影响核反应堆中的链式反应。当重核，如铀-235或钚-239，吸收一个中子时，它变得不稳定并发生裂变。在此过程中，它分裂成较小的原子核，并释放能量，同时释放出几个prompt neutrons，这些中子可以引发进一步的裂变事件。 prompt neutrons在维持核链反应中的作用不可低估。在受控环境中，例如核反应堆，这些中子对于保持裂变和吸收之间的平衡至关重要。反应堆的设计必须确保产生足够的prompt neutrons以保持反应进行，同时防止其失控。例如，在典型的加压水反应堆中，水等慢化剂的存在会减缓prompt neutrons的速度，使它们更有可能导致进一步的裂变反应。此外，在考虑核电站的安全机制时，prompt neutrons的时机至关重要。工程师在设计控制系统时必须考虑到这些中子迅速释放的情况。如果产生的prompt neutrons过多且过快，可能导致超临界状态，从而导致能量的失控释放。因此，理解prompt neutrons的行为对于反应堆的操作以及确保其安全性和效率至关重要。除了在发电中的重要性外，prompt neutrons在核武器中也起着重要作用。这些中子的快速释放是导致核炸弹爆炸威力的关键因素之一。当达到裂变材料的临界质量时，随之产生的prompt neutrons可以产生快速且无法控制的链式反应，导致以爆炸形式释放大量能量。这一方面突显了核技术的双重用途，即同样的原理可以用于和平的能源生产和破坏性的武器。总之，prompt neutron的概念对于理解核裂变过程至关重要。这些中子在裂变事件中立即释放，并在核反应堆和武器中维持链式反应中发挥着关键作用。随着我们继续探索核技术，prompt neutrons的重要性将始终是科学研究和实际应用的中心焦点。通过掌握这些粒子的意义，我们可以更好地理解与利用核能相关的复杂性和责任。最后，研究prompt neutrons不仅增强了我们对核物理的理解，还强调了在核技术中安全和控制的重要性。随着我们向前发展，继续研究和开发管理这些强大力量的方法至关重要，确保它们被用于造福人类，而非危害人类。