radioactive assay

简明释义

放射性检定

英英释义

例句

1.The environmental agency required a radioactive assay to assess the safety of the water supply.

环保局要求进行放射性检测以评估水供应的安全性。

2.The radioactive assay results indicated a higher level of isotopes than previously recorded.

该放射性检测结果显示同位素的水平高于之前记录的水平。

3.The laboratory conducted a radioactive assay to determine the levels of contamination in the soil.

实验室进行了放射性检测以确定土壤中的污染水平。

4.Using a radioactive assay, researchers were able to measure the radioactivity of the samples accurately.

通过使用放射性检测，研究人员能够准确测量样本的放射性。

5.In medical research, a radioactive assay is often used to track the distribution of drugs in the body.

在医学研究中，放射性检测通常用于追踪药物在体内的分布。

作文

The term radioactive assay refers to a scientific method used to measure the quantity of radioactive substances in a sample. This technique is crucial in various fields such as environmental science, medicine, and nuclear physics. Understanding radioactive assay is essential for professionals who work with radioactive materials, as it helps in assessing safety levels, monitoring environmental contamination, and conducting research on nuclear reactions.In environmental science, radioactive assay plays a vital role in analyzing soil, water, and air samples for radioactive contamination. For instance, after a nuclear accident, scientists use this method to evaluate the extent of radioactive pollution in the surrounding environment. By accurately measuring the levels of radioactive isotopes, researchers can determine the necessary steps for cleanup and remediation. This not only protects public health but also restores ecosystems affected by radiation.In the medical field, radioactive assay is employed in various diagnostic and therapeutic procedures. Radioactive isotopes are often used in imaging techniques, such as positron emission tomography (PET) scans, which help doctors visualize and diagnose conditions like cancer. By utilizing radioactive assay, healthcare professionals can quantify the amount of radioactive material administered to patients, ensuring that doses are safe and effective. Furthermore, this technique is essential in the development of new radiopharmaceuticals, allowing researchers to assess the stability and efficacy of these compounds before they are used in clinical settings.Nuclear physics also heavily relies on radioactive assay. Researchers studying the properties of different isotopes and their decay processes use this method to gather data. For example, understanding the half-life of a radioactive isotope is crucial for applications in dating archaeological finds or determining the age of geological formations. By performing a radioactive assay, scientists can calculate the concentration of isotopes present in a sample, leading to more accurate conclusions about its history and formation.Despite its importance, the process of radioactive assay requires strict adherence to safety protocols. Handling radioactive materials poses significant risks, and proper training is essential to avoid exposure. Laboratories conducting these assays must be equipped with specialized instruments, such as gamma spectrometers and scintillation counters, to accurately detect and measure radiation levels. Moreover, regulatory bodies oversee the use of radioactive substances to ensure compliance with safety standards and protect public health.In conclusion, the concept of radioactive assay encompasses a range of applications across various scientific disciplines. Its significance in environmental monitoring, medical diagnostics, and nuclear research cannot be overstated. As technology advances, the methods and instruments used in radioactive assay continue to improve, leading to more precise measurements and safer handling of radioactive materials. Understanding this technique is crucial for anyone involved in fields related to radioactivity, as it not only enhances scientific knowledge but also contributes to the safety and well-being of society at large.

术语放射性测定是指一种科学方法，用于测量样本中放射性物质的数量。这种技术在环境科学、医学和核物理等多个领域至关重要。理解放射性测定对从事放射性材料工作的专业人士来说至关重要，因为它有助于评估安全水平、监测环境污染以及进行核反应研究。在环境科学中，放射性测定在分析土壤、水和空气样本中的放射性污染方面发挥着重要作用。例如，在核事故发生后，科学家使用该方法评估周围环境中放射性污染的程度。通过准确测量放射性同位素的水平，研究人员可以确定清理和修复所需的步骤。这不仅保护公众健康，还恢复受辐射影响的生态系统。在医学领域，放射性测定用于各种诊断和治疗程序中。放射性同位素通常用于成像技术，如正电子发射断层扫描（PET）扫描，帮助医生可视化和诊断癌症等疾病。通过利用放射性测定，医疗专业人士可以量化给患者施用的放射性物质的数量，确保剂量安全有效。此外，这项技术在新放射性药物的开发中至关重要，使研究人员能够在临床环境中使用这些化合物之前评估其稳定性和有效性。核物理也在很大程度上依赖于放射性测定。研究不同同位素及其衰变过程的研究人员使用该方法收集数据。例如，了解放射性同位素的半衰期对于考古发现的年代测定或地质形成年龄的确定至关重要。通过进行放射性测定，科学家可以计算样本中存在的同位素浓度，从而得出更准确的关于其历史和形成的结论。尽管其重要性，放射性测定的过程需要严格遵守安全规程。处理放射性材料存在重大风险，适当的培训对于避免暴露至关重要。进行这些测定的实验室必须配备专门的仪器，如伽马光谱仪和闪烁计数器，以准确检测和测量辐射水平。此外，监管机构监督放射性物质的使用，以确保遵守安全标准并保护公众健康。总之，放射性测定的概念涵盖了多个科学学科的广泛应用。它在环境监测、医学诊断和核研究中的重要性不容小觑。随着技术的进步，放射性测定中使用的方法和仪器不断改进，导致更精确的测量和更安全的放射性材料处理。理解这一技术对于任何涉及放射性的领域的人来说都是至关重要的，因为它不仅增强了科学知识，还有助于社会整体的安全和福祉。