coulomb barrier

简明释义

库仑势垒

英英释义

例句

1.Researchers are investigating ways to lower the 库仑势垒 for more efficient energy production.

研究人员正在探索降低库仑势垒以提高能源生产效率的方法。

2.The energy required to breach the 库仑势垒 is a critical factor in determining the feasibility of fusion reactors.

突破库仑势垒所需的能量是决定聚变反应堆可行性的关键因素。

3.Understanding the 库仑势垒 helps physicists design better particle accelerators.

理解库仑势垒有助于物理学家设计更好的粒子加速器。

4.In nuclear fusion experiments, scientists must overcome the 库仑势垒 to allow atomic nuclei to collide and fuse.

在核聚变实验中，科学家必须克服库仑势垒，以使原子核发生碰撞并融合。

5.The 库仑势垒 plays a significant role in stellar nucleosynthesis.

在恒星核合成中，库仑势垒起着重要作用。

作文

The concept of the coulomb barrier is a fundamental principle in nuclear physics that describes the energy barrier due to electrostatic repulsion between charged particles. When two positively charged nuclei approach each other, they experience a force of repulsion due to their like charges. This repulsion creates a barrier that must be overcome for nuclear fusion to occur. The coulomb barrier is significant because it determines the conditions under which fusion can take place, especially in stars where hydrogen nuclei combine to form helium and release vast amounts of energy.In astrophysics, understanding the coulomb barrier is crucial for explaining how stars generate energy. In the core of a star, temperatures reach millions of degrees Celsius, providing enough kinetic energy for protons to overcome the coulomb barrier. As they collide with sufficient energy, they can get close enough for the strong nuclear force to take over, allowing them to fuse together. This process not only powers the stars but also contributes to the synthesis of heavier elements in the universe.Moreover, the coulomb barrier has practical implications in nuclear fusion research on Earth. Scientists aim to replicate the conditions found in stars to create a sustainable fusion reaction. However, achieving the necessary temperatures and pressures to overcome the coulomb barrier is a significant challenge. Current experimental reactors, such as tokamaks, attempt to confine plasma at extremely high temperatures to facilitate fusion reactions, but the coulomb barrier remains a formidable obstacle.In addition to its role in fusion, the coulomb barrier also plays a part in nuclear decay processes. For instance, alpha particles are emitted from heavy nuclei, and the coulomb barrier influences the likelihood of this emission occurring. The energy required for an alpha particle to escape the nucleus is affected by the height of the coulomb barrier, which varies with the charge of the nucleus.In summary, the coulomb barrier is a critical concept in nuclear physics that explains the challenges involved in nuclear fusion and decay. It represents the energy threshold that charged particles must overcome due to electrostatic repulsion. Understanding this barrier not only enhances our knowledge of stellar processes but also informs ongoing research in nuclear fusion technology. As scientists continue to explore ways to harness fusion energy, overcoming the coulomb barrier will be key to unlocking a new era of clean and abundant energy.

“库仑势垒”是核物理学中的一个基本概念，描述了由于带电粒子之间的静电排斥而形成的能量障碍。当两个正电荷的原子核相互靠近时，由于同种电荷的作用，它们会经历排斥力。这种排斥力形成了一个障碍，必须克服才能发生核聚变。“库仑势垒”之所以重要，是因为它决定了聚变发生的条件，特别是在恒星内部，氢原子核结合成氦并释放出巨量能量。在天体物理学中，理解“库仑势垒”对于解释恒星如何产生能量至关重要。在恒星的核心，温度达到数百万摄氏度，提供足够的动能，使质子能够克服“库仑势垒”。当它们以足够的能量碰撞时，可以接近到强核力占主导地位，从而使它们融合在一起。这个过程不仅为恒星提供能量，还促进了宇宙中重元素的合成。此外，“库仑势垒”在地球上的核聚变研究中也具有实际意义。科学家们试图复制恒星中的条件，以创造可持续的聚变反应。然而，达到克服“库仑势垒”所需的温度和压力是一个重大挑战。目前的实验反应堆，如托卡马克，试图在极高的温度下限制等离子体，以促进聚变反应，但“库仑势垒”依然是一道难以逾越的障碍。除了在聚变中的作用外，“库仑势垒”还在核衰变过程中发挥作用。例如，α粒子是从重核中发射出来的，而“库仑势垒”影响着这种发射发生的可能性。α粒子逃离原子核所需的能量受“库仑势垒”高度的影响，而“库仑势垒”的高度因核的电荷而异。总之，“库仑势垒”是核物理学中的一个关键概念，解释了核聚变和衰变过程中的挑战。它代表了带电粒子必须克服的能量阈值，源于静电排斥。理解这一障碍不仅增强了我们对恒星过程的认识，也为正在进行的核聚变技术研究提供了信息。随着科学家们继续探索利用聚变能的方法，克服“库仑势垒”将是开启清洁和丰富能源新时代的关键。