americium

简明释义

英[ˌæməˈrɪsiəm;ˌæməˈrɪʃiəm]美[ˌæməˈrɪsiəmˌˌæməˈrɪʃiəm]

n. [化学]镅（95号元素，符号 Am）

英英释义

单词用法

同义词

反义词

例句

1.That essentially means that it uses a radioactive element called americium-241 to spot smoke or harmful gasses.

从字面上可以了解到，它采用放射性元素镅241来探测烟雾或者有害气体。

2.Dmytro Melnychuk, rector of the national university, said: "Strontium-90, plutonium, and americium-241 are all extremely susceptible to upward atmospheric migration and dispersal via heat from fires."

国立大学校长DmytroMelnychuk说：“锶- 90、钚还有镅- 241都是极易通过大火的高温向大气层上迁移和散播的。”

3.Dmytro Melnychuk, rector of the national university, said: "Strontium-90, plutonium, and americium-241 are all extremely susceptible to upward atmospheric migration and dispersal via heat from fires."

国立大学校长DmytroMelnychuk说：“锶- 90、钚还有镅- 241都是极易通过大火的高温向大气层上迁移和散播的。”

4.Abstract The extraction of americium, plutonium and uranium by dicyclohexano 18 crown 6(DCH18C6)/1 octanol from HNO 3 solution and simulated HLLW are studied.

摘要研究了二环己基18冠6（DCH18C6）-正辛醇从硝酸溶液和模拟高放废液中镅、钚、铀的萃取。

5.In laboratories, americium is often used as a source of alpha particles.

在实验室中，铕常用作α粒子的源。

6.Scientists are studying the properties of americium to improve nuclear batteries.

科学家们正在研究铕的性质，以改善核电池。

7.The use of americium in industrial radiography helps to inspect welds and structures.

在工业射线照相中使用铕有助于检查焊缝和结构。

8.The radioactive element americium is commonly used in smoke detectors.

放射性元素铕通常用于烟雾探测器中。

9.Due to its radioactive properties, americium must be handled with care.

由于其放射性特性，必须小心处理铕。

作文

Americium is a synthetic element that belongs to the actinide series of the periodic table. It was first produced in 1944 by a team of scientists at the University of California, Berkeley, who were working on nuclear reactions involving plutonium. The discovery of americium (铕) marked a significant milestone in the field of nuclear chemistry and has since opened up numerous avenues for research and practical applications.One of the most notable characteristics of americium (铕) is that it is radioactive, which means it emits radiation as it decays. This property makes americium (铕) a valuable material in various fields, particularly in smoke detectors and certain types of nuclear batteries. In smoke detectors, americium (铕) is used in the form of americium-241, which emits alpha particles that ionize the air in the detection chamber. When smoke enters the chamber, it disrupts this ionization process, triggering the alarm. This application highlights how americium (铕) plays a crucial role in enhancing safety in homes and buildings.In addition to its use in smoke detectors, americium (铕) has been utilized in various scientific applications, including neutron sources and radiography. Neutron sources that contain americium (铕) are employed in industrial settings for non-destructive testing of materials. These sources enable technicians to examine the integrity of structures without causing any damage, which is essential in fields such as construction and manufacturing.Moreover, americium (铕) has potential applications in space exploration. Researchers have proposed using americium (铕) as a power source for deep-space missions due to its ability to provide a steady output of energy over an extended period. This could be particularly advantageous for missions that require long-duration power supplies, such as those exploring distant planets or celestial bodies.Despite its useful applications, the handling of americium (铕) requires strict safety precautions due to its radioactive nature. Exposure to high levels of radiation can pose health risks, including cancer. Therefore, scientists and engineers working with americium (铕) must adhere to rigorous safety protocols to protect themselves and the environment.In conclusion, americium (铕) is a fascinating element that has made significant contributions to various fields, from enhancing public safety through smoke detectors to advancing scientific research and exploration. As we continue to explore the potential of synthetic elements like americium (铕), it is crucial to balance their benefits with the necessary precautions to ensure safe and responsible use. The ongoing study of americium (铕) and its properties will undoubtedly lead to further innovations and discoveries in the future.

铕是一个合成元素，属于周期表的锕系系列。它于1944年首次由加利福尼亚大学伯克利分校的一组科学家生产，他们正在进行涉及钚的核反应研究。americium（铕）的发现标志着核化学领域的重要里程碑，并且自此开启了众多研究和实际应用的途径。americium（铕）最显著的特征之一是它是放射性的，这意味着它在衰变时会发出辐射。这一特性使得americium（铕）在多个领域中成为一种有价值的材料，特别是在烟雾探测器和某些类型的核电池中。在烟雾探测器中，americium（铕）以氡-241的形式使用，氡-241释放的阿尔法粒子能够电离探测室中的空气。当烟雾进入探测室时，它会干扰这一电离过程，从而触发警报。这一应用突显了americium（铕）在提高家庭和建筑物安全方面的重要作用。除了在烟雾探测器中的应用外，americium（铕）还被用于各种科学应用中，包括中子源和射线摄影。含有americium（铕）的中子源被用于工业环境中的无损检测。这些源使技术人员能够检查结构的完整性而不造成任何损坏，这在建筑和制造等领域至关重要。此外，americium（铕）在太空探索中也具有潜在的应用。研究人员提议将americium（铕）作为深空任务的动力源，因为它能够在较长时间内提供稳定的能量输出。这对于需要长期电源供应的任务，尤其是那些探索遥远行星或天体的任务，将是非常有利的。尽管有其有用的应用，处理americium（铕）仍需严格的安全预防措施，因为它具有放射性特性。高水平的辐射暴露可能会带来健康风险，包括癌症。因此，处理americium（铕）的科学家和工程师必须遵循严格的安全协议，以保护自己和环境。总之，americium（铕）是一个引人入胜的元素，在多个领域做出了重要贡献，从通过烟雾探测器提高公共安全，到推动科学研究和探索。随着我们继续探索像americium（铕）这样的合成元素的潜力，平衡其益处与确保安全和负责任使用所需的预防措施是至关重要的。对americium（铕）及其特性的持续研究无疑将导致未来更多的创新和发现。