radiation dose

简明释义

辐射剂量

英英释义

例句

1.Patients undergoing radiation therapy need to monitor their radiation dose 辐射剂量 carefully to avoid excessive exposure.

接受放射治疗的患者需要仔细监测他们的辐射剂量 辐射剂量以避免过度暴露。

2.It's important to limit the radiation dose 辐射剂量 during diagnostic imaging to reduce risks.

在诊断成像过程中限制辐射剂量 辐射剂量以降低风险是很重要的。

3.The technician calibrated the machine to ensure the radiation dose 辐射剂量 was accurate for the procedure.

技术员校准了机器，以确保程序的辐射剂量 辐射剂量是准确的。

4.Research shows that a lower radiation dose 辐射剂量 can still provide adequate imaging quality.

研究表明，较低的辐射剂量 辐射剂量仍然可以提供足够的成像质量。

5.The doctor explained that the radiation dose 辐射剂量 for the CT scan would be higher than for a standard X-ray.

医生解释说，CT扫描的辐射剂量 辐射剂量会比标准X光高。

作文

Understanding the concept of radiation dose is crucial in various fields, including medicine, environmental science, and nuclear safety. A radiation dose refers to the amount of radiation energy absorbed by an object or person. This measurement is essential for assessing the potential risks associated with exposure to ionizing radiation, which can have significant health effects. In medical contexts, radiation dose is often discussed in relation to diagnostic imaging techniques such as X-rays, CT scans, and radiation therapies used in cancer treatment.In the field of radiology, minimizing the radiation dose to patients while obtaining high-quality images is a primary concern. Medical professionals strive to use the lowest possible radiation dose that still provides adequate diagnostic information. This principle, known as ALARA (As Low As Reasonably Achievable), helps to reduce the risk of radiation-related side effects, especially for vulnerable populations such as children and pregnant women.Moreover, understanding radiation dose is not limited to medical applications. Environmental scientists study background radiation levels and how they affect ecosystems and human health. For instance, areas near nuclear power plants or sites of nuclear accidents may expose residents to higher radiation doses, necessitating monitoring and regulation to ensure public safety. The cumulative effect of radiation dose over time can lead to increased risks of cancer and other health issues, making it a vital area of research.In nuclear safety, professionals assess the radiation dose that workers and the public may receive from various sources, including occupational exposure and accidental releases. Regulatory bodies set limits on acceptable radiation doses to protect individuals from harmful effects. For example, the International Commission on Radiological Protection (ICRP) provides guidelines on recommended radiation doses for different scenarios, emphasizing the importance of safeguarding health while allowing for beneficial uses of radiation.The measurement of radiation dose can be expressed in several units, the most common being sieverts (Sv) and grays (Gy). While gray measures the amount of radiation energy absorbed by a material, sievert accounts for the biological effects of that radiation on human tissue. Understanding these units helps professionals communicate effectively about the risks and safety measures associated with radiation dose exposure.In conclusion, the term radiation dose encompasses a wide range of applications and implications across various sectors. Whether in healthcare, environmental studies, or nuclear safety, comprehending the significance of radiation dose is essential for ensuring safety and promoting informed decision-making. As technology advances and our reliance on radiation-based techniques increases, ongoing education and awareness about radiation dose will remain critical in protecting public health and the environment.

理解辐射剂量的概念在医学、环境科学和核安全等多个领域至关重要。辐射剂量是指被物体或人吸收的辐射能量的数量。这一测量对于评估接触电离辐射的潜在风险至关重要，因为这种辐射可能对健康产生重大影响。在医学背景下，辐射剂量通常与诊断影像技术（如X光、CT扫描）以及用于癌症治疗的放射治疗相关。在放射学领域，尽量减少患者的辐射剂量同时获取高质量图像是主要关注点。医疗专业人员努力使用最低可能的辐射剂量，以提供足够的诊断信息。这一原则被称为ALARA（尽可能低），有助于降低辐射相关副作用的风险，尤其是对于儿童和孕妇等脆弱人群。此外，理解辐射剂量并不仅限于医学应用。环境科学家研究背景辐射水平及其对生态系统和人类健康的影响。例如，靠近核电站或核事故现场的地区可能使居民暴露于较高的辐射剂量，因此需要进行监测和监管以确保公众安全。随着时间的推移，辐射剂量的累积效应可能导致癌症和其他健康问题的风险增加，这使得这一领域的研究至关重要。在核安全中，专业人员评估工人和公众可能从各种来源（包括职业暴露和意外释放）接收到的辐射剂量。监管机构设定可接受的辐射剂量限制，以保护个人免受有害影响。例如，国际放射防护委员会（ICRP）提供了不同情境下推荐的辐射剂量指导方针，强调在允许辐射的有益用途的同时保障健康的重要性。辐射剂量的测量可以用几种单位表示，最常见的是西弗（Sv）和戈瑞（Gy）。虽然戈瑞测量材料吸收的辐射能量，但西弗则考虑到该辐射对人类组织的生物效应。理解这些单位有助于专业人员有效地沟通与辐射剂量暴露相关的风险和安全措施。总之，术语辐射剂量涵盖了各个领域的广泛应用和影响。无论是在医疗、环境研究还是核安全方面，理解辐射剂量的重要性对于确保安全和促进明智的决策至关重要。随着技术的进步和我们对基于辐射的技术的依赖增加，关于辐射剂量的持续教育和意识将继续在保护公众健康和环境中发挥关键作用。