megarad

简明释义

英[ˈmɛɡəˌræd]美[ˈmɛɡəˌræd]

n. 兆拉德（吸收剂量的标准单位）

英英释义

单词用法

同义词

反义词

例句

1.CALIBRE MEGARAD 2081-6lr has been evaluated with respect to ISO 10993 (Biological Evaluation of medical Devices) and is suitable for use in approved medical applications.

口径MEGARAD 2081-6lr进行了评估标准方面10993(医疗器械生物学评价)，并在批准的医疗应用使用。

2.CALIBRE MEGARAD 2081-6lr has been evaluated with respect to ISO 10993 (Biological Evaluation of medical Devices) and is suitable for use in approved medical applications.

口径MEGARAD 2081-6lr进行了评估标准方面10993(医疗器械生物学评价)，并在批准的医疗应用使用。

3.Research on radiation therapy has shown that doses exceeding 5 megarad can be detrimental.

关于放射治疗的研究表明，超过5megarad的剂量可能有害。

4.The reactor was designed to withstand radiation levels up to 10 megarad.

该反应堆设计能够承受高达10megarad的辐射水平。

5.After the accident, workers were monitored for radiation exposure above 2 megarad.

事故发生后，工人们被监测辐射暴露是否超过2megarad。

6.The radiation dose was measured in megarad, indicating a very high level of exposure.

辐射剂量以megarad为单位测量，表明暴露水平非常高。

7.In the nuclear industry, safety protocols often limit exposure to less than 1 megarad per year.

在核工业中，安全协议通常将每年的暴露限制在少于1megarad。

作文

In the field of radiation measurement, the term megarad refers to a unit of absorbed radiation dose. It is equal to one million rads, where a rad is defined as the amount of radiation that deposits 0.01 joules of energy in one kilogram of matter. This measurement is particularly significant in areas such as radiology, nuclear medicine, and radiation therapy, where understanding the dosage of radiation is crucial for patient safety and treatment efficacy. The megarad is often used when dealing with high doses of radiation, such as those encountered in radiation therapy for cancer treatment. For example, a typical radiation therapy treatment might involve doses measured in grays (Gy), where 1 Gy is equivalent to 100 rads. Therefore, when converting these measurements, we find that 1 megarad is equal to 10,000 Gy, showcasing the vast scale of radiation exposure that megarad represents.Understanding megarad is essential not only for medical professionals but also for researchers working in fields related to radiation. In experimental physics, researchers may encounter situations where they need to measure or calculate radiation exposure in megarad to ensure that their experiments are conducted within safe limits. For instance, during the testing of new materials designed to withstand high levels of radiation, scientists may expose these materials to doses of several megarad to evaluate their durability and performance.Moreover, the concept of megarad extends beyond just medical and scientific applications. In the context of nuclear safety and environmental protection, understanding radiation levels in megarad can help assess the impact of nuclear accidents or waste disposal. After events like the Fukushima disaster, experts analyzed the radiation levels released, sometimes quantifying these in terms of megarad, to communicate the severity of the situation to the public and policymakers.Education about radiation and its measurements, including megarad, is vital for both professionals and the general public. With advancements in technology and increasing concerns about radiation exposure from various sources, such as medical imaging and nuclear power, it is crucial to foster a better understanding of units like megarad. This knowledge can empower individuals to make informed decisions regarding their health and safety, especially when undergoing medical treatments that involve radiation.In conclusion, the term megarad is an important unit in the realm of radiation measurement, representing a substantial amount of absorbed radiation dose. Its relevance spans multiple fields, including medicine, research, and environmental safety. By comprehending the implications of megarad, we can better navigate the complexities of radiation exposure and its effects on human health and the environment.

在辐射测量领域，术语megarad指的是吸收辐射剂量的单位。它等于一百万个rad，其中rad被定义为将0.01焦耳能量沉积到一千克物质中的辐射量。这个测量在放射学、核医学和放射治疗等领域尤为重要，因为了解辐射剂量对患者安全和治疗有效性至关重要。megarad通常用于处理高剂量辐射的情况，例如在癌症治疗的放射治疗中遇到的剂量。例如，典型的放射治疗可能涉及以戈瑞（Gy）为单位的剂量，其中1 Gy等于100 rad。因此，在转换这些测量时，我们发现1megarad等于10,000 Gy，展示了megarad所代表的辐射暴露的巨大规模。理解megarad不仅对医疗专业人士至关重要，而且对从事与辐射相关领域的研究人员也同样重要。在实验物理学中，研究人员可能会遇到需要测量或计算辐射暴露的情况，以确保他们的实验在安全范围内进行。例如，在测试新材料以承受高水平辐射时，科学家可能会将这些材料暴露于几megarad的剂量，以评估其耐久性和性能。此外，megarad的概念不仅限于医学和科学应用。在核安全和环境保护的背景下，理解megarad中的辐射水平可以帮助评估核事故或废物处理的影响。在福岛灾难等事件发生后，专家分析了释放的辐射水平，有时以megarad为单位量化，以向公众和政策制定者传达情况的严重性。关于辐射及其测量的教育，包括megarad，对专业人士和普通公众至关重要。随着技术的进步和人们对来自各种来源的辐射暴露的关注日益增加，例如医学成像和核能，培养对megarad等单位的更好理解至关重要。这种知识可以使个人在接受涉及辐射的医疗治疗时做出明智的决定，尤其是在健康和安全方面。总之，术语megarad是辐射测量领域的重要单位，代表着相当大的吸收辐射剂量。它的相关性跨越多个领域，包括医学、研究和环境安全。通过理解megarad的含义，我们可以更好地应对辐射暴露及其对人类健康和环境的影响的复杂性。