linear attenuation coefficient

简明释义

线性衰减系数

英英释义

例句

1.The linear attenuation coefficient 线性衰减系数 can vary based on the energy level of the incoming photons.

根据入射光子的能量水平，线性衰减系数 linear attenuation coefficient 可能会有所不同。

2.In medical imaging, the linear attenuation coefficient 线性衰减系数 helps in differentiating between various tissues.

在医学成像中，线性衰减系数 linear attenuation coefficient 有助于区分不同的组织。

3.Understanding the linear attenuation coefficient 线性衰减系数 is essential for radiation protection.

理解线性衰减系数 linear attenuation coefficient 对于辐射防护至关重要。

4.The linear attenuation coefficient 线性衰减系数 is crucial in determining how much radiation can penetrate a material.

在确定辐射能够穿透材料的程度时，线性衰减系数 linear attenuation coefficient 是至关重要的。

5.The linear attenuation coefficient 线性衰减系数 of lead is significantly higher than that of plastic.

铅的线性衰减系数 linear attenuation coefficient 明显高于塑料。

作文

The concept of the linear attenuation coefficient is fundamental in the fields of physics and engineering, particularly in radiology and radiation protection. This coefficient quantifies how much a certain material can attenuate or weaken a beam of radiation as it passes through. Understanding the linear attenuation coefficient is crucial for professionals who work with radiation, as it helps them to determine the appropriate materials and thicknesses needed to shield against harmful radiation exposure. In essence, the linear attenuation coefficient is defined as the fraction of incident radiation that is absorbed or scattered per unit thickness of the material. It is represented by the Greek letter 'μ' (mu) and is measured in units of inverse length, typically in centimeters⁻¹. The higher the value of the linear attenuation coefficient, the more effective the material is at attenuating the radiation. For example, lead has a high linear attenuation coefficient, making it an excellent choice for shielding against X-rays and gamma rays.To illustrate the importance of understanding the linear attenuation coefficient, consider a medical scenario where a patient is undergoing an X-ray examination. Radiologists must ensure that they use the appropriate protective gear to minimize radiation exposure to both the patient and themselves. By knowing the linear attenuation coefficient of various materials, they can select the right lead aprons or barriers that will effectively reduce the intensity of the X-rays reaching sensitive body parts.Moreover, the linear attenuation coefficient is not a constant value; it varies depending on several factors, including the energy of the radiation and the type of material. For instance, low-energy photons are more likely to be absorbed by materials compared to high-energy photons, which may pass through more easily. Therefore, when calculating the linear attenuation coefficient, it is essential to consider these variables to achieve accurate results.In addition to its applications in medical imaging, the linear attenuation coefficient plays a significant role in nuclear power plants, radiation therapy, and even in the design of space vehicles that must withstand cosmic radiation. Engineers and scientists must account for the linear attenuation coefficient when designing structures that will protect both humans and sensitive equipment from radiation damage.In conclusion, the linear attenuation coefficient is a critical parameter in the study of radiation and its interaction with matter. Its understanding is vital for ensuring safety in environments where radiation is present. As technology advances and new materials are developed, ongoing research into the linear attenuation coefficient will continue to enhance our ability to protect ourselves from harmful radiation while utilizing its beneficial applications in medicine and industry. By grasping the significance of the linear attenuation coefficient, we can better appreciate the delicate balance between harnessing radiation for good and safeguarding against its potential dangers.

“线性衰减系数”是物理学和工程学领域的一个基本概念，特别是在放射学和辐射防护中。该系数量化了某种材料在辐射束通过时能够衰减或削弱辐射的程度。理解“线性衰减系数”对于从事辐射相关工作的专业人员至关重要，因为它帮助他们确定所需的适当材料和厚度，以屏蔽有害的辐射暴露。本质上，“线性衰减系数”定义为单位厚度材料吸收或散射的入射辐射的分数。它用希腊字母“μ”（穆）表示，单位通常为反长度，通常以厘米⁻¹为单位。“线性衰减系数”的值越高，材料对辐射的衰减效果就越好。例如，铅的“线性衰减系数”很高，使其成为屏蔽X射线和伽马射线的优良选择。为了说明理解“线性衰减系数”的重要性，考虑一个医学场景，患者正在接受X射线检查。放射科医生必须确保使用适当的保护装备，以最小化对患者和他们自己的辐射暴露。通过了解各种材料的“线性衰减系数”，他们可以选择合适的铅围裙或屏障，有效减少到达敏感身体部位的X射线强度。此外，“线性衰减系数”并不是一个恒定值；它会因多个因素而异，包括辐射的能量和材料的类型。例如，低能光子比高能光子更可能被材料吸收，因此在计算“线性衰减系数”时，考虑这些变量以获得准确结果至关重要。除了在医学成像中的应用外，“线性衰减系数”在核电站、放射治疗甚至在设计必须承受宇宙辐射的航天器中也发挥着重要作用。工程师和科学家在设计保护人类和敏感设备免受辐射损害的结构时，必须考虑“线性衰减系数”。总之，“线性衰减系数”是研究辐射及其与物质相互作用的关键参数。理解这一点对于确保在存在辐射的环境中的安全至关重要。随着技术的进步和新材料的发展，对“线性衰减系数”的持续研究将继续增强我们保护自己免受有害辐射，同时利用其在医学和工业中的有益应用的能力。通过掌握“线性衰减系数”的意义，我们可以更好地欣赏利用辐射带来好处与保护自己免受潜在危险之间的微妙平衡。