mass coefficient of reactivity

简明释义

质量反应性系数

英英释义

例句

1.In nuclear physics, the mass coefficient of reactivity 反应性质量系数 is crucial for understanding how changes in fuel composition affect reactor behavior.

在核物理中，反应性质量系数 mass coefficient of reactivity对于理解燃料成分变化如何影响反应堆行为至关重要。

2.The mass coefficient of reactivity 反应性质量系数 can significantly influence the neutron flux within a reactor core.

在反应堆核心内，反应性质量系数 mass coefficient of reactivity可以显著影响中子通量。

3.Researchers are studying the mass coefficient of reactivity 反应性质量系数 to improve the efficiency of nuclear reactors.

研究人员正在研究反应性质量系数 mass coefficient of reactivity以提高核反应堆的效率。

4.The engineer calculated the mass coefficient of reactivity 反应性质量系数 to determine the safety margins of the reactor.

工程师计算了反应性质量系数 mass coefficient of reactivity以确定反应堆的安全裕度。

5.To ensure safe operation, the mass coefficient of reactivity 反应性质量系数 must be monitored continuously.

为了确保安全运行，反应性质量系数 mass coefficient of reactivity必须持续监测。

作文

In the field of nuclear physics and engineering, understanding the concepts that govern the behavior of nuclear reactors is crucial. One such important concept is the mass coefficient of reactivity, which plays a significant role in determining the reactivity of a nuclear system. The mass coefficient of reactivity (质量反应系数) is defined as the change in reactivity per unit change in mass of a fissile material within the reactor core. This parameter helps engineers and scientists evaluate how variations in the amount of fuel can affect the overall reaction rates and stability of a nuclear reactor.To comprehend the importance of the mass coefficient of reactivity, one must first understand the basic principles of nuclear fission. In a nuclear reactor, fissile materials such as uranium-235 or plutonium-239 undergo fission when they absorb a neutron. This process releases a significant amount of energy, along with additional neutrons that can initiate further fission reactions. The ability to control this chain reaction is essential for the safe and efficient operation of the reactor.The mass coefficient of reactivity quantifies how the reactivity of the reactor changes with respect to the mass of the fissile material present. A positive mass coefficient of reactivity indicates that adding more fissile material will increase the reactivity, potentially leading to a runaway reaction if not properly managed. Conversely, a negative mass coefficient of reactivity suggests that increasing the mass of fissile material will decrease the reactivity, promoting stability and safety in reactor operations.Moreover, the mass coefficient of reactivity is influenced by various factors, including temperature, neutron flux, and the presence of neutron absorbers. For instance, as the temperature of the reactor increases, the thermal motion of the particles can affect the likelihood of fission events occurring. This interplay between temperature and reactivity is vital for maintaining optimal reactor conditions.In practical applications, engineers utilize the mass coefficient of reactivity to design control systems that manage the reactor's power output. By carefully monitoring the mass of the fuel and its corresponding reactivity, operators can make informed decisions about when to insert control rods or adjust coolant flow to maintain a stable reaction rate. This is essential not only for maximizing energy production but also for ensuring the safety of the reactor and its surroundings.In conclusion, the mass coefficient of reactivity is a fundamental concept in nuclear reactor physics that describes how changes in the mass of fissile material affect the reactivity of the system. Understanding this parameter is critical for the safe and efficient operation of nuclear reactors. As the world continues to explore sustainable energy sources, the role of nuclear power remains significant, making it imperative for professionals in the field to master concepts like the mass coefficient of reactivity to ensure both safety and efficiency in energy production.

在核物理和工程领域，理解支配核反应堆行为的概念至关重要。其中一个重要概念是质量反应系数，它在确定核系统的反应性方面发挥着重要作用。质量反应系数（质量反应系数）被定义为反应堆核心中裂变材料质量变化所引起的反应性变化。这一参数帮助工程师和科学家评估燃料量的变化如何影响核反应堆的整体反应速率和稳定性。要理解质量反应系数的重要性，首先必须了解核裂变的基本原理。在核反应堆中，铀-235或钚-239等裂变材料在吸收中子时发生裂变。这个过程释放出大量能量，并伴随释放出可以引发进一步裂变反应的额外中子。控制这一链式反应的能力对于反应堆的安全和高效运行至关重要。质量反应系数量化了反应堆的反应性如何随着裂变材料质量的变化而变化。正的质量反应系数表示增加更多的裂变材料将增加反应性，若未得到妥善管理，可能导致失控反应。相反，负的质量反应系数则表明增加裂变材料的质量将降低反应性，促进反应堆的稳定性和安全性。此外，质量反应系数还受到温度、中子通量和中子吸收剂存在等多种因素的影响。例如，随着反应堆温度的升高，粒子的热运动可能影响裂变事件发生的可能性。这种温度与反应性之间的相互作用对于维持最佳反应堆条件至关重要。在实际应用中，工程师利用质量反应系数设计控制系统，以管理反应堆的功率输出。通过仔细监测燃料的质量及其对应的反应性，操作员可以做出明智的决定，关于何时插入控制棒或调整冷却剂流量，以保持稳定的反应速率。这不仅对最大化能量生产至关重要，而且对确保反应堆及其周围环境的安全也是如此。总之，质量反应系数是核反应堆物理学中的一个基本概念，描述了裂变材料质量变化如何影响系统的反应性。理解这一参数对于核反应堆的安全和高效运行至关重要。随着世界继续探索可持续能源来源，核能的角色仍然显著，这使得该领域的专业人士掌握如质量反应系数这样的概念，以确保能源生产的安全性和效率变得尤为重要。