committed dose equivalent

简明释义

约定剂量当量

英英释义

例句

1.In occupational health, monitoring the committed dose equivalent (承诺剂量当量) helps ensure worker safety.

在职业健康中，监测committed dose equivalent（承诺剂量当量）有助于确保工人安全。

2.Understanding the committed dose equivalent (承诺剂量当量) is crucial for emergency responders in a radiological incident.

理解committed dose equivalent（承诺剂量当量）对辐射事件中的应急响应者至关重要。

3.The radiologist explained that the committed dose equivalent (承诺剂量当量) is used to assess long-term radiation exposure effects.

放射科医生解释说，committed dose equivalent（承诺剂量当量）用于评估长期辐射暴露的影响。

4.After the accident, the nuclear facility provided data on the committed dose equivalent (承诺剂量当量) for affected individuals.

事故发生后，核设施提供了受影响个体的committed dose equivalent（承诺剂量当量）数据。

5.The health physicist calculated the committed dose equivalent (承诺剂量当量) to evaluate potential cancer risks.

健康物理学家计算了committed dose equivalent（承诺剂量当量）以评估潜在的癌症风险。

作文

The concept of committed dose equivalent is crucial in the field of radiation protection and health physics. It refers to the amount of radiation dose that an individual is expected to accumulate over time, specifically from radioactive materials that have been ingested or inhaled. This measure is particularly significant because it helps assess the long-term health risks associated with exposure to radioactive substances. Understanding this term requires a grasp of several key concepts in radiation exposure and its effects on human health.Firstly, it is important to differentiate between immediate and committed doses. The immediate dose is the radiation dose received at the moment of exposure, while the committed dose equivalent (中文释义: “承诺剂量当量”) considers the cumulative effects over a period, often years or decades. This cumulative aspect is vital because many radioactive isotopes have long half-lives, meaning they remain in the body and continue to emit radiation long after the initial exposure has occurred.One of the primary reasons for calculating the committed dose equivalent is to evaluate the potential for developing health issues such as cancer. For instance, when a person inhales radon gas, the radioactive particles can lodge in lung tissue and continue to emit radiation, leading to a gradual increase in the dose received over time. By assessing the committed dose equivalent, health physicists can provide more accurate risk assessments and guide public health policies aimed at minimizing exposure.Another critical aspect of the committed dose equivalent is its role in regulatory frameworks. Organizations like the International Commission on Radiological Protection (ICRP) utilize this measurement to establish safety standards and guidelines. By understanding the potential long-term effects of radiation exposure, these organizations can recommend limits on occupational exposure for workers in nuclear facilities, medical settings, and other environments where radiation is present.Moreover, the calculation of the committed dose equivalent involves complex modeling and assumptions about biological uptake and retention of radioactive materials. Factors such as age, sex, and individual metabolism can influence how much radiation is absorbed and retained in the body, making personalized assessments important. This complexity illustrates the need for ongoing research and monitoring in the field of radiation safety.In conclusion, the term committed dose equivalent encapsulates a vital aspect of understanding radiation exposure and its long-term implications for human health. As we continue to encounter various sources of radiation in our environment, from medical imaging to nuclear power, recognizing the significance of this measure will be essential in protecting public health. By focusing on both immediate and committed doses, we can better understand the risks and implement effective strategies to safeguard ourselves and future generations from the potential dangers of radiation exposure.

“承诺剂量当量”的概念在辐射防护和健康物理学领域至关重要。它指的是一个人预计在一段时间内（特别是从摄入或吸入的放射性物质中）积累的辐射剂量。这一测量尤其重要，因为它有助于评估与暴露于放射性物质相关的长期健康风险。理解这个术语需要掌握辐射暴露及其对人类健康影响的几个关键概念。首先，重要的是要区分即时剂量和承诺剂量。即时剂量是指在暴露时接收到的辐射剂量，而承诺剂量当量（中文释义: “承诺剂量当量”）则考虑了在一段时间内（通常是几年或几十年）累积效应。这种累积特性至关重要，因为许多放射性同位素具有较长的半衰期，这意味着它们在体内保持存在，并在初次暴露后继续发出辐射。计算承诺剂量当量的主要原因之一是评估发展健康问题（如癌症）的潜在风险。例如，当一个人吸入氡气时，放射性颗粒可能会滞留在肺组织中并继续发出辐射，导致随时间推移而逐渐增加的剂量。通过评估承诺剂量当量，健康物理学家可以提供更准确的风险评估，并指导旨在最小化暴露的公共卫生政策。此外，承诺剂量当量在监管框架中的作用也至关重要。国际放射保护委员会（ICRP）等组织利用这一测量来建立安全标准和指导方针。通过了解辐射暴露的潜在长期影响，这些组织可以建议核设施、医疗环境以及其他存在辐射的环境中工人的职业暴露限值。此外，承诺剂量当量的计算涉及复杂的建模和关于生物摄取和放射性物质保留的假设。年龄、性别和个体新陈代谢等因素会影响体内吸收和保留的辐射量，从而使个性化评估变得重要。这种复杂性突显了在辐射安全领域进行持续研究和监测的必要性。总之，术语承诺剂量当量概括了理解辐射暴露及其对人类健康长期影响的重要方面。随着我们继续遇到来自环境中各种辐射源（从医学成像到核能），认识到这一测量的重要性将对保护公众健康至关重要。通过关注即时剂量和承诺剂量，我们可以更好地理解风险并实施有效策略，以保护自己和未来几代人免受辐射暴露的潜在危险。