alpha radioactive

简明释义

α放射性的;

英英释义

例句

1.Handling alpha radioactive 阿尔法放射性的 substances requires special safety precautions.

处理阿尔法放射性的物质需要特别的安全措施。

2.In nuclear physics, alpha radioactive 阿尔法放射性的 materials are often used in smoke detectors.

在核物理中，阿尔法放射性的材料常用于烟雾探测器。

3.The scientist explained that the sample was alpha radioactive 阿尔法放射性的, emitting particles that could be harmful.

科学家解释说，样本是阿尔法放射性的，释放的粒子可能是有害的。

4.The alpha radioactive 阿尔法放射性的 decay of uranium is a key concept in radiochemistry.

铀的阿尔法放射性的衰变是放射化学中的一个关键概念。

5.Researchers discovered a new alpha radioactive 阿尔法放射性的 isotope that could be used in medical applications.

研究人员发现了一种新的阿尔法放射性的同位素，可以用于医学应用。

作文

Understanding the concept of alpha radioactive materials is crucial in the fields of nuclear physics and radiation safety. Radioactive decay occurs when unstable atomic nuclei lose energy by emitting radiation, which can be in the form of alpha particles, beta particles, or gamma rays. Among these, alpha radioactive substances are those that emit alpha particles during their decay process. Alpha particles consist of two protons and two neutrons, making them relatively heavy compared to other forms of radiation. This heaviness contributes to their low penetration ability; for instance, they can be stopped by just a sheet of paper or even human skin.The significance of alpha radioactive materials extends beyond their physical properties. They are commonly found in nature, with elements like uranium and radium being prime examples. These elements undergo decay and release alpha radioactive particles, which can pose health risks if ingested or inhaled. For this reason, understanding the behavior and potential hazards of alpha radioactive materials is essential for ensuring safety in various environments, including mining operations and medical applications.In medical science, alpha radioactive isotopes have been utilized in targeted alpha therapy (TAT), a novel cancer treatment approach. This method involves using alpha radioactive particles to selectively destroy cancer cells while minimizing damage to surrounding healthy tissue. The high energy of alpha radioactive emissions allows for effective treatment of localized tumors, showcasing the beneficial applications of these materials in therapeutic settings.However, the use of alpha radioactive materials comes with strict regulatory guidelines. Organizations such as the Environmental Protection Agency (EPA) and the Nuclear Regulatory Commission (NRC) enforce regulations to manage the use, storage, and disposal of alpha radioactive substances. These regulations are designed to protect public health and the environment from the potential dangers associated with radiation exposure.Additionally, the study of alpha radioactive decay has implications in fields such as geology and archaeology. Radiometric dating techniques often rely on the decay rates of alpha radioactive isotopes to determine the age of rocks and fossils. By measuring the amount of parent and daughter isotopes present in a sample, scientists can estimate the time elapsed since the rock or organism was formed, providing valuable insights into Earth's history and the evolution of life.In conclusion, the term alpha radioactive encapsulates a significant aspect of nuclear science, encompassing both its risks and benefits. Whether in the context of health care, environmental safety, or scientific research, understanding alpha radioactive materials is vital for harnessing their potential while mitigating their dangers. As research continues to evolve, the applications and implications of alpha radioactive substances will undoubtedly expand, necessitating ongoing education and awareness in this critical area of study.

理解alpha radioactive材料的概念在核物理和辐射安全领域至关重要。放射性衰变发生在不稳定的原子核通过发射辐射失去能量时，这种辐射可以是阿尔法粒子、贝塔粒子或伽马射线。在这些辐射中，alpha radioactive物质是指在其衰变过程中发射阿尔法粒子的物质。阿尔法粒子由两个质子和两个中子组成，相比其他形式的辐射，它们相对较重。这种重量使它们的穿透能力较低；例如，它们可以被一张纸甚至人类皮肤阻挡。alpha radioactive材料的重要性超出了其物理特性。它们通常存在于自然界中，铀和镭等元素是主要的例子。这些元素经历衰变并释放alpha radioactive粒子，如果摄入或吸入，可能会对健康构成风险。因此，了解alpha radioactive材料的行为和潜在危害对于确保矿业和医疗应用等各种环境中的安全至关重要。在医学科学中，alpha radioactive同位素已被用于靶向阿尔法疗法（TAT），这是一种新型癌症治疗方法。该方法涉及使用alpha radioactive粒子选择性地摧毁癌细胞，同时尽量减少对周围健康组织的损伤。alpha radioactive辐射的高能量使得有效治疗局部肿瘤成为可能，展示了这些材料在治疗环境中的有益应用。然而，使用alpha radioactive材料需要遵循严格的监管指南。环保署（EPA）和核管理委员会（NRC）等组织实施法规，以管理alpha radioactive物质的使用、存储和处置。这些法规旨在保护公众健康和环境免受辐射暴露的潜在危险。此外，alpha radioactive衰变的研究在地质学和考古学等领域也有重要意义。放射性测年技术通常依赖于alpha radioactive同位素的衰变速率来确定岩石和化石的年龄。通过测量样品中父同位素和子同位素的量，科学家可以估计自岩石或生物形成以来经过的时间，为了解地球历史和生命演化提供宝贵的见解。总之，术语alpha radioactive涵盖了核科学的一个重要方面，包括其风险和收益。无论是在医疗、环境安全还是科学研究的背景下，理解alpha radioactive材料对于利用其潜力同时减轻其危险至关重要。随着研究的不断发展，alpha radioactive物质的应用和影响无疑将扩展，因此在这一关键领域的持续教育和意识将是必要的。