primary neutron source

简明释义

初始中子源

英英释义

例句

1.The team is investigating alternative materials for the primary neutron source to improve efficiency.

该团队正在研究替代材料作为主要中子源以提高效率。

2.The design of the reactor includes a primary neutron source to enhance the fission process.

该反应堆的设计包括一个主要中子源以增强裂变过程。

3.In the context of neutron radiography, the primary neutron source is critical for obtaining high-quality images.

在中子成像的背景下，主要中子源对于获得高质量图像至关重要。

4.For safety assessments, it is important to identify the primary neutron source in the facility.

为了安全评估，识别设施中的主要中子源是很重要的。

5.The research facility utilizes a primary neutron source to conduct experiments on nuclear reactions.

该研究设施利用一个主要中子源进行核反应实验。

作文

In the field of nuclear physics and engineering, understanding the concept of a primary neutron source is crucial for various applications, including nuclear reactors, medical therapies, and scientific research. A primary neutron source refers to a device or material that generates neutrons primarily through nuclear reactions, such as fission or fusion. These neutrons play a fundamental role in initiating further reactions and are essential for sustaining a chain reaction in nuclear reactors.The generation of neutrons can occur in several ways. For instance, in a fission reactor, heavy nuclei like uranium-235 or plutonium-239 undergo fission when bombarded by neutrons. This process not only releases a significant amount of energy but also produces additional neutrons, which can then propagate the reaction. Consequently, the primary neutron source in this case is the fissionable material itself, which is crucial for maintaining the reactor's operation.On the other hand, in fusion reactions, lighter nuclei, such as isotopes of hydrogen, combine under extreme conditions to form helium and release energy along with neutrons. In experimental fusion reactors, understanding how to create an effective primary neutron source is vital for achieving the conditions necessary for sustained fusion reactions. The neutrons produced can be used for various purposes, including breeding fuel and generating tritium, which is a key component in fusion processes.Beyond energy production, primary neutron sources have significant applications in medical fields, particularly in cancer treatment. Neutron therapy, a type of radiation therapy, utilizes high-energy neutrons to target and destroy cancer cells. In this context, the primary neutron source may be a particle accelerator or a nuclear reactor designed to produce neutrons specifically for therapeutic use. The effectiveness of neutron therapy relies heavily on the characteristics of the primary neutron source, including neutron energy and flux.Moreover, in scientific research, neutron sources are indispensable tools for material analysis and characterization. Neutron scattering techniques, which depend on neutrons produced by a primary neutron source, allow scientists to investigate the structure and dynamics of materials at the atomic level. These techniques provide insights into the properties of various substances, ranging from metals to biological samples, making them invaluable in materials science and biology.As technology advances, the development of new and improved primary neutron sources continues to be a focus of research. Innovations such as compact neutron sources and portable neutron generators are being explored to enhance accessibility and efficiency. These advancements not only improve the performance of existing applications but also open up new possibilities for using neutrons in diverse fields.In conclusion, the term primary neutron source encompasses a variety of devices and materials that generate neutrons through nuclear reactions. Its significance spans across multiple domains, including energy production, medical therapies, and scientific research. A thorough understanding of primary neutron sources is essential for harnessing the power of neutrons effectively and safely, paving the way for advancements in technology and medicine. As we continue to explore the potential of neutrons, the role of primary neutron sources will undoubtedly remain central to our efforts in these critical areas.

在核物理和工程领域，理解“primary neutron source”这一概念对于各种应用至关重要，包括核反应堆、医疗治疗和科学研究。“primary neutron source”指的是通过核反应（如裂变或聚变）主要生成中子的装置或材料。这些中子在启动进一步反应中起着基础性作用，并且对于维持核反应堆中的链式反应至关重要。中子的产生可以通过多种方式进行。例如，在裂变反应堆中，重核（如铀-235或钚-239）在中子的轰击下发生裂变。这个过程不仅释放出大量能量，还会产生额外的中子，这些中子可以传播反应。因此，在这种情况下，“primary neutron source”就是可裂变材料本身，对于维持反应堆的运行至关重要。另一方面，在聚变反应中，轻核（如氢的同位素）在极端条件下结合形成氦并释放能量以及中子。在实验聚变反应堆中，理解如何创造有效的“primary neutron source”对于实现持续聚变反应所需的条件至关重要。生成的中子可以用于多种目的，包括培育燃料和产生氚，氚是聚变过程中的关键成分。除了能源生产外，“primary neutron source”在医疗领域也具有重要应用，特别是在癌症治疗方面。中子治疗作为一种放射治疗，利用高能中子来靶向和摧毁癌细胞。在这种情况下，“primary neutron source”可能是专门设计用于产生中子的粒子加速器或核反应堆。中子治疗的有效性在很大程度上依赖于“primary neutron source”的特性，包括中子的能量和通量。此外，在科学研究中，中子源是材料分析和表征的重要工具。中子散射技术依赖于由“primary neutron source”产生的中子，使科学家能够在原子水平上研究材料的结构和动态。这些技术为各种物质的性质提供了深入的见解，从金属到生物样品，使其在材料科学和生物学中不可或缺。随着技术的进步，新型和改进的“primary neutron sources”的开发仍然是研究的重点。诸如紧凑型中子源和便携式中子发生器等创新正在被探索，以提高可及性和效率。这些进展不仅改善了现有应用的性能，还为在各个领域使用中子开辟了新的可能性。总之，“primary neutron source”这一术语涵盖了通过核反应生成中子的各种设备和材料。它的重要性跨越多个领域，包括能源生产、医疗治疗和科学研究。全面理解“primary neutron sources”对于有效和安全地利用中子的力量至关重要，为技术和医学的进步铺平了道路。随着我们继续探索中子的潜力，“primary neutron sources”的角色无疑将在这些关键领域中保持核心地位。