backscattered radiation

简明释义

背面散射辐射

英英释义

例句

1.The imaging technique relies on detecting backscattered radiation (反向散射辐射) to create detailed images of the internal structures.

这种成像技术依赖于检测反向散射辐射来创建内部结构的详细图像。

2.Researchers found that backscattered radiation (反向散射辐射) can provide valuable information about material composition.

研究人员发现，反向散射辐射可以提供有关材料成分的宝贵信息。

3.The analysis of backscattered radiation (反向散射辐射) helped identify the presence of contaminants in the soil.

对反向散射辐射的分析有助于识别土壤中污染物的存在。

4.In nuclear medicine, backscattered radiation (反向散射辐射) is used to assess the distribution of radioactive tracers in the body.

在核医学中，反向散射辐射用于评估放射性示踪剂在体内的分布。

5.The sensor was calibrated to measure the intensity of backscattered radiation (反向散射辐射) from the surface of the sample.

传感器经过校准，以测量样本表面发出的反向散射辐射的强度。

作文

In the field of physics and engineering, understanding various types of radiation is crucial for numerous applications, including medical imaging, material analysis, and environmental monitoring. One significant type of radiation that often comes up in these discussions is backscattered radiation. This term refers to the radiation that is scattered back towards its source after interacting with a material or object. The study of backscattered radiation has profound implications in several scientific disciplines, especially in non-destructive testing and remote sensing technologies.When particles or photons collide with a surface, they can be absorbed, transmitted, or scattered. Among these interactions, backscattered radiation plays a pivotal role. For instance, in X-ray diffraction techniques, when X-rays hit a sample, some of them are scattered back towards the detector. The intensity and angle of this backscattered radiation can provide valuable information about the material's structure and composition. This principle is widely applied in materials science, where researchers analyze the properties of metals, polymers, and other substances.Moreover, backscattered radiation is also essential in the field of medical imaging. Techniques such as ultrasound and certain types of CT scans rely on the analysis of backscattered signals to create detailed images of internal body structures. In these scenarios, understanding how different tissues scatter sound waves or X-rays allows healthcare professionals to diagnose conditions more accurately. The ability to interpret backscattered radiation significantly enhances the effectiveness of these imaging techniques.In environmental science, backscattered radiation is utilized to monitor pollutants and assess the health of ecosystems. Remote sensing satellites, for example, use sensors to detect the backscattered radiation from the Earth’s surface. By analyzing these signals, scientists can gather data about land use, vegetation cover, and even changes in climate. This information is vital for managing natural resources and addressing environmental issues.The importance of understanding backscattered radiation extends to security applications as well. In airport security screening, for instance, backscatter X-ray machines are used to detect concealed objects on individuals. These machines work by emitting X-rays that penetrate clothing and then measuring the backscattered radiation to identify any hidden items. While this technology has raised privacy concerns, it demonstrates the practical applications of backscattered radiation in enhancing safety measures.Despite its numerous applications, the study of backscattered radiation is not without challenges. Factors such as the angle of incidence, the type of material, and the energy of the incoming radiation can all affect the amount and quality of the backscattered signals. Researchers continuously strive to improve the accuracy and reliability of measurements involving backscattered radiation to ensure that the data obtained is both precise and useful.In conclusion, backscattered radiation is an essential concept in various scientific fields, providing insights that lead to advancements in technology and improvements in safety and health. As our understanding of this phenomenon grows, so too does its potential for innovative applications that can benefit society. Whether in medical diagnostics, environmental monitoring, or security, the implications of backscattered radiation are far-reaching and significant, making it a vital area of study for researchers and professionals alike.

在物理和工程领域，理解各种类型的辐射对许多应用至关重要，包括医学成像、材料分析和环境监测。其中一个经常出现的重要辐射类型是反向散射辐射。这个术语指的是辐射在与材料或物体相互作用后，向其源头散射回来的辐射。研究反向散射辐射在几个科学学科中具有深远的意义，尤其是在无损检测和遥感技术中。当粒子或光子与表面碰撞时，它们可能会被吸收、透射或散射。在这些相互作用中，反向散射辐射起着关键作用。例如，在X射线衍射技术中，当X射线击中样品时，其中一些会向探测器散射回来。这种反向散射辐射的强度和角度可以提供有关材料结构和成分的宝贵信息。这一原理广泛应用于材料科学，研究人员分析金属、聚合物和其他物质的性质。此外，反向散射辐射在医学成像领域也至关重要。超声波和某些类型的CT扫描等技术依赖于对反向散射信号的分析，以创建内部身体结构的详细图像。在这些情况下，理解不同组织如何散射声波或X射线，使医疗专业人员能够更准确地诊断疾病。解释反向散射辐射的能力显著增强了这些成像技术的有效性。在环境科学中，反向散射辐射用于监测污染物和评估生态系统的健康。例如，遥感卫星利用传感器检测地球表面的反向散射辐射。通过分析这些信号，科学家可以收集有关土地利用、植被覆盖甚至气候变化的数据。这些信息对于管理自然资源和应对环境问题至关重要。理解反向散射辐射的重要性还扩展到安全应用领域。例如，在机场安检中，反向散射X射线机用于检测个人身上的隐蔽物体。这些机器通过发射X射线穿透衣物，然后测量反向散射辐射来识别任何隐藏的物品。尽管这一技术引发了隐私方面的担忧，但它展示了反向散射辐射在增强安全措施中的实际应用。尽管有众多应用，研究反向散射辐射并非没有挑战。入射角、材料类型和入射辐射的能量等因素都可能影响反向散射信号的数量和质量。研究人员不断努力提高涉及反向散射辐射的测量的准确性和可靠性，以确保获得的数据既精确又有用。总之，反向散射辐射是多个科学领域中的一个基本概念，提供了推动技术进步和改善安全与健康的见解。随着我们对这一现象理解的加深，其创新应用的潜力也在不断增长，能够造福社会。无论是在医学诊断、环境监测还是安全领域，反向散射辐射的影响深远而重要，使其成为研究人员和专业人士都需要研究的重要领域。