alpha rays

简明释义

α射线

英英释义

例句

1.In the lab, we used a detector to measure the intensity of alpha rays from a polonium source.

在实验室中，我们使用探测器测量来自钋源的阿尔法射线的强度。

2.The safety guidelines recommend using protective gear when working with materials that emit alpha rays.

安全指南建议在处理发出阿尔法射线的材料时使用防护装备。

3.Unlike alpha rays, beta and gamma rays can penetrate deeper into materials.

与阿尔法射线不同，β射线和γ射线可以更深入地穿透材料。

4.Exposure to alpha rays can pose health risks if ingested or inhaled.

如果摄入或吸入，暴露于阿尔法射线可能会带来健康风险。

5.The scientist explained that alpha rays are a type of radiation emitted by certain radioactive materials.

科学家解释说，阿尔法射线是某些放射性材料发出的辐射类型。

作文

Alpha rays, also known as alpha particles, are a type of ionizing radiation that is emitted during the radioactive decay of certain heavy elements such as uranium and radium. These particles consist of two protons and two neutrons, which makes them relatively heavy compared to other forms of radiation like beta particles and gamma rays. The discovery of alpha rays (α射线) dates back to the early 20th century when scientists were exploring the properties of radioactivity. Understanding alpha rays (α射线) is crucial not only for nuclear physics but also for various applications in medicine and industry.The significance of alpha rays (α射线) lies in their ability to ionize atoms and molecules. When alpha rays (α射线) pass through matter, they can knock electrons off atoms, resulting in the formation of ions. This ionization process is what makes alpha rays (α射线) particularly useful in certain medical treatments, such as targeted alpha therapy (TAT) for cancer. In TAT, alpha rays (α射线) are directed at cancer cells, where their high energy can destroy the cells while minimizing damage to surrounding healthy tissue.However, despite their beneficial applications, alpha rays (α射线) pose significant health risks if ingested or inhaled. Due to their relatively large mass and charge, alpha rays (α射线) have low penetration power and cannot penetrate the outer layer of human skin. This means that external exposure to alpha rays (α射线) is generally considered safe. Nonetheless, if materials emitting alpha rays (α射线) are ingested or enter the body through wounds, they can cause severe cellular damage and increase the risk of cancer.In the field of nuclear energy, understanding alpha rays (α射线) is essential for managing radioactive waste. Many radioactive isotopes emit alpha rays (α射线) as they decay, and proper containment and disposal methods must be employed to prevent environmental contamination. The study of alpha rays (α射线) also contributes to our understanding of nuclear reactions and the stability of atomic nuclei.In conclusion, alpha rays (α射线) are a fascinating aspect of nuclear physics with both beneficial and hazardous implications. Their unique properties make them valuable in medical applications, particularly in cancer treatment. However, safety precautions are necessary to mitigate the risks associated with their potential harm. As research continues, our knowledge of alpha rays (α射线) will undoubtedly expand, leading to new discoveries and innovations in various fields.

α射线，也称为α粒子，是一种在某些重元素（如铀和镭）的放射性衰变过程中释放的电离辐射。这些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粒子和γ射线），它们相对较重。α射线的发现可以追溯到20世纪初，当时科学家们正在探索放射性的性质。理解α射线不仅对核物理学至关重要，而且在医学和工业的各种应用中也很重要。α射线的重要性在于其能够电离原子和分子。当α射线穿过物质时，它们可以将电子从原子中击出，从而形成离子。这一电离过程使得α射线在某些医疗治疗中特别有用，例如用于癌症的靶向α疗法（TAT）。在TAT中，α射线被定向投射到癌细胞上，其高能量可以摧毁细胞，同时最小化对周围健康组织的损害。然而，尽管α射线具有有益的应用，但如果摄入或吸入，它们也会对健康构成重大风险。由于其相对较大的质量和电荷，α射线的穿透力较低，无法穿透人类皮肤的外层。这意味着外部暴露于α射线通常被认为是安全的。然而，如果释放α射线的材料被摄入或通过伤口进入体内，它们可能会造成严重的细胞损伤，并增加癌症的风险。在核能领域，理解α射线对于管理放射性废物至关重要。许多放射性同位素在衰变时会释放α射线，因此必须采用适当的封存和处置方法，以防止环境污染。对α射线的研究也有助于我们理解核反应和原子核的稳定性。总之，α射线是核物理学的一个迷人方面，具有有益和危险的影响。它们独特的性质使其在医疗应用中，特别是在癌症治疗中具有价值。然而，需要采取安全预防措施，以减轻与其潜在危害相关的风险。随着研究的持续，我们对α射线的认识无疑会扩大，从而在各个领域带来新的发现和创新。