alpha emitter

简明释义

辐射体

英英释义

例句

1.An alpha emitter α粒子发射体 can be dangerous if ingested or inhaled.

如果摄入或吸入，α粒子发射体可能是危险的。

2.Researchers are studying the effects of alpha emitters α粒子发射体 on cancer treatment.

研究人员正在研究α粒子发射体对癌症治疗的影响。

3.The safety protocols for handling alpha emitters α粒子发射体 are strictly enforced in laboratories.

实验室中严格执行处理α粒子发射体的安全协议。

4.Some medical devices utilize alpha emitters α粒子发射体 for targeted radiation therapy.

一些医疗设备利用α粒子发射体进行靶向放射治疗。

5.The use of an alpha emitter α粒子发射体 in smoke detectors has proven to be effective.

在烟雾探测器中使用α粒子发射体是有效的。

作文

In the field of nuclear physics and radiation, the term alpha emitter refers to a type of radioactive substance that emits alpha particles during its decay process. Alpha particles are composed of two protons and two neutrons, which makes them relatively heavy compared to other forms of radiation, such as beta particles or gamma rays. Understanding alpha emitters is crucial for various applications, including medical treatments, industrial uses, and safety measures in handling radioactive materials.One of the most well-known examples of an alpha emitter is uranium-238, which is prevalent in nature and plays a significant role in the nuclear industry. When uranium-238 undergoes radioactive decay, it releases alpha particles, which can be harmful if ingested or inhaled. This characteristic necessitates strict safety protocols when working with materials that contain alpha emitters. In medicine, alpha emitters have been utilized in targeted alpha therapy (TAT), a novel approach to treating cancer. In this treatment, radioactive isotopes that emit alpha particles are attached to molecules that specifically target cancer cells. When these alpha particles are emitted, they cause significant damage to the DNA of the cancer cells, leading to their destruction while minimizing harm to surrounding healthy tissue. This targeted approach represents a promising avenue in oncology, showcasing the potential benefits of harnessing alpha emitters in therapeutic applications.However, the use of alpha emitters is not without its challenges. Due to the high energy of the emitted alpha particles, they have a very short range and cannot penetrate human skin. While this property can be advantageous in certain medical applications, it also means that precautions must be taken to ensure that alpha radiation does not enter the body through inhalation or ingestion. Therefore, understanding the properties and behaviors of alpha emitters is vital for both their safe application and effective utilization in various fields.Moreover, the environmental impact of alpha emitters cannot be ignored. These substances can pose risks to ecosystems if they are released into the environment through accidents or improper disposal. For instance, mining activities for uranium can lead to the contamination of water sources with radioactive materials, affecting both wildlife and human populations. As such, regulatory measures are in place to monitor and manage the use of alpha emitters to mitigate potential hazards.In conclusion, alpha emitters are a significant aspect of nuclear science with diverse applications ranging from medical therapies to industrial uses. Their ability to emit alpha particles presents both opportunities and challenges that require careful consideration and management. As research continues to advance our understanding of these materials, the potential for innovative applications will likely expand, highlighting the importance of responsible stewardship of radioactive substances. By enhancing our knowledge of alpha emitters, we can better harness their capabilities while ensuring safety and environmental protection.

在核物理和辐射领域，术语alpha emitter指的是一种在衰变过程中释放α粒子的放射性物质。α粒子由两个质子和两个中子组成，相较于其他形式的辐射，如β粒子或γ射线，它们相对较重。理解alpha emitters对于医学治疗、工业应用以及处理放射性材料时的安全措施至关重要。最著名的alpha emitter之一是铀-238，它在自然界中普遍存在，并在核工业中发挥着重要作用。当铀-238经历放射性衰变时，它释放出α粒子，如果摄入或吸入这些粒子，会造成伤害。这一特性要求在处理含有alpha emitters的材料时必须遵循严格的安全协议。在医学上，alpha emitters已被用于靶向α疗法（TAT），这是一种治疗癌症的新方法。在这种治疗中，释放α粒子的放射性同位素与专门针对癌细胞的分子结合。当这些α粒子释放时，它们会对癌细胞的DNA造成重大损伤，从而导致其破坏，同时尽量减少对周围健康组织的伤害。这种靶向方法代表了肿瘤学中的一种有前景的途径，展示了利用alpha emitters进行治疗应用的潜在好处。然而，使用alpha emitters并非没有挑战。由于释放的α粒子能量很高，因此它们的穿透力非常短，无法穿透人类皮肤。虽然这一特性在某些医学应用中可能是有利的，但这也意味着必须采取预防措施，以确保α辐射不会通过吸入或摄入进入体内。因此，理解alpha emitters的性质和行为对于安全应用和有效利用各个领域中的这些材料至关重要。此外，alpha emitters对环境的影响也不可忽视。如果通过事故或不当处置将这些物质释放到环境中，它们可能对生态系统构成风险。例如，铀的采矿活动可能导致水源被放射性物质污染，从而影响野生动物和人类。为此，监管措施已到位，以监测和管理alpha emitters的使用，以减轻潜在危害。总之，alpha emitters是核科学的重要组成部分，具有从医学疗法到工业应用的多种用途。它们发射α粒子的能力带来了机遇和挑战，需要谨慎考虑和管理。随着研究不断推进我们对这些材料的理解，创新应用的潜力可能会扩大，突显出对放射性物质负责任管理的重要性。通过增强我们对alpha emitters的知识，我们可以更好地利用它们的能力，同时确保安全和环境保护。