artificial radioactivity

简明释义

人工放射性

英英释义

例句

1.The discovery of artificial radioactivity 人工放射性 opened new avenues for medical research.

人工放射性的发现为医学研究开辟了新的途径。

2.The production of artificial radioactivity 人工放射性 involves bombarding stable nuclei with neutrons.

人工放射性的产生涉及用中子轰击稳定核。

3.The concept of artificial radioactivity 人工放射性 was first introduced in the early 20th century.

人工放射性的概念最早是在20世纪初提出的。

4.Researchers are studying the effects of artificial radioactivity 人工放射性 on human cells.

研究人员正在研究人工放射性对人类细胞的影响。

5.Scientists use artificial radioactivity 人工放射性 to create isotopes for cancer treatment.

科学家利用人工放射性来制造用于癌症治疗的同位素。

作文

Artificial radioactivity, or 人工放射性, is a fascinating phenomenon that has significant implications in various fields, including medicine, industry, and scientific research. Unlike natural radioactivity, which occurs spontaneously in certain elements, 人工放射性 is induced by human intervention, typically through nuclear reactions. This process allows scientists to create isotopes that do not occur naturally, expanding the range of materials available for study and application.One of the most notable examples of 人工放射性 was discovered in the early 20th century by the physicists Irène Joliot-Curie and Frédéric Joliot-Curie. They found that when they bombarded beryllium with alpha particles, they produced a new radioactive isotope of carbon. This groundbreaking discovery opened the door to the creation of numerous other artificial isotopes, which have since been used in various applications.In medicine, 人工放射性 plays a crucial role in diagnostic imaging and treatment. For instance, isotopes such as technetium-99m are widely used in medical imaging to diagnose conditions such as cancer and heart disease. These isotopes are injected into the patient’s body, where they emit gamma rays that can be detected by imaging equipment, allowing doctors to visualize internal organs and identify abnormalities.Moreover, 人工放射性 is also pivotal in the field of radiation therapy. Cancer treatments often employ isotopes that emit radiation to target and destroy malignant cells. By using specific isotopes that can be directed towards tumors, physicians can minimize damage to surrounding healthy tissue, making treatment more effective and less harmful.In addition to its medical applications, 人工放射性 has a significant impact on various industries. For example, in the field of agriculture, radioactive isotopes are used to enhance food production. Techniques such as mutation breeding involve exposing seeds to radiation to induce genetic changes that can lead to improved crop varieties. This method has contributed to increased food security and agricultural efficiency.Furthermore, 人工放射性 is utilized in industrial radiography, which involves using radioactive isotopes to inspect materials for structural integrity. This technique is vital in ensuring the safety and reliability of critical infrastructure, such as bridges and pipelines. By detecting flaws or weaknesses in materials, engineers can prevent failures and accidents, ultimately saving lives and resources.Despite its many benefits, 人工放射性 also poses challenges and risks. The handling and disposal of radioactive materials require stringent safety protocols to protect workers and the environment from potential hazards. Additionally, public perception of radioactivity can lead to fear and misunderstanding, which may hinder the acceptance of beneficial technologies that rely on 人工放射性.In conclusion, 人工放射性 is a remarkable advancement that has transformed various sectors, particularly medicine and industry. Its ability to produce new isotopes has enabled significant progress in diagnostics, treatment, agriculture, and material inspection. As we continue to explore the potential of 人工放射性, it is essential to balance innovation with safety and public education to maximize its benefits while minimizing risks.

人工放射性是一个迷人的现象，在医学、工业和科学研究等多个领域具有重要意义。与自然放射性不同，自然放射性是某些元素自发发生的，而人工放射性是通过人类干预诱导的，通常通过核反应实现。这一过程使科学家能够创造出自然界中不存在的同位素，扩展了可供研究和应用的材料范围。人工放射性的一个显著例子是在20世纪初由物理学家伊伦·居里和弗雷德里克·居里发现的。他们发现，当用α粒子轰击铍时，会产生一种新的放射性碳同位素。这一突破性发现为众多其他人工同位素的创造打开了大门，这些同位素后来被广泛应用于各个领域。在医学上，人工放射性在诊断成像和治疗中发挥着关键作用。例如，锝-99m同位素被广泛用于医学成像，以诊断癌症和心脏病等疾病。这些同位素被注入患者体内，发出伽马射线，可以被成像设备检测到，从而使医生能够可视化内部器官并识别异常情况。此外，人工放射性在放射治疗领域也至关重要。癌症治疗通常采用发射辐射的同位素来靶向并摧毁恶性细胞。通过使用特定的同位素，可以将其引导到肿瘤上，从而最大限度地减少对周围健康组织的损害，使治疗更有效且危害更小。除了医学应用，人工放射性在各个行业中也有显著影响。例如，在农业领域，放射性同位素被用于提高食品生产。突变育种等技术涉及将种子暴露于辐射下，以诱导遗传变化，从而导致改良作物品种。这种方法有助于提高粮食安全和农业效率。此外，人工放射性还用于工业射线照相，这涉及使用放射性同位素检查材料的结构完整性。这项技术对于确保关键基础设施（如桥梁和管道）的安全和可靠性至关重要。通过检测材料中的缺陷或弱点，工程师可以防止故障和事故，从而最终节省生命和资源。尽管有许多好处，人工放射性也带来了挑战和风险。处理和处置放射性材料需要严格的安全协议，以保护工人和环境免受潜在危害。此外，公众对放射性的看法可能导致恐惧和误解，这可能阻碍依赖人工放射性的有益技术的接受。总之，人工放射性是一项了不起的进步，改变了医学和工业等多个部门。它产生新同位素的能力使得在诊断、治疗、农业和材料检查方面取得了重大进展。随着我们继续探索人工放射性的潜力，平衡创新、安全和公众教育至关重要，以最大化其好处，同时最小化风险。