key term - Plutonium

Definition

Plutonium is a radioactive transuranic metal that is a key component in the production of nuclear weapons and nuclear reactor fuel. It is a highly toxic and fissile material that has significant implications in the context of transmutation and nuclear energy.

5 Must Know Facts For Your Next Test

1. Plutonium is produced in nuclear reactors through the neutron bombardment of uranium-238, which leads to the formation of plutonium-239.
2. Plutonium-239 is the most commonly used isotope of plutonium for nuclear weapons and nuclear reactor fuel due to its high fissility.
3. Plutonium is a highly toxic substance that can cause severe health issues if ingested or inhaled, making it a significant environmental and safety concern.
4. The process of transmuting plutonium, or converting it into less radioactive or stable elements, is a key focus in nuclear energy research and development.
5. Plutonium is a critical component in the development of advanced nuclear reactor designs, such as fast breeder reactors, which can produce more plutonium than they consume.

Review Questions

• Explain the process of how plutonium is produced in nuclear reactors.
  • Plutonium is produced in nuclear reactors through the neutron bombardment of uranium-238. When uranium-238 absorbs a neutron, it undergoes a series of nuclear reactions that ultimately lead to the formation of plutonium-239, the most commonly used isotope of plutonium. This process of neutron capture and subsequent nuclear transformations is a key aspect of the nuclear fuel cycle and the production of plutonium for use in nuclear weapons and nuclear reactor fuel.
• Discuss the role of plutonium in the development of advanced nuclear reactor designs, such as fast breeder reactors.
  • Plutonium is a critical component in the development of advanced nuclear reactor designs, such as fast breeder reactors. These reactors are designed to produce more plutonium than they consume, a process known as breeding. Fast breeder reactors utilize the fissile properties of plutonium-239 to generate heat and electricity, while also creating new fissile material through the neutron bombardment of non-fissile isotopes. This ability to produce more nuclear fuel than they consume makes fast breeder reactors an attractive option for enhancing the efficiency and sustainability of nuclear energy.
• Evaluate the environmental and safety concerns associated with the use and handling of plutonium, and how these issues are addressed in the context of transmutation and nuclear energy.
  • Plutonium is a highly toxic and radioactive substance that poses significant environmental and safety concerns. Due to its potential to cause severe health issues if ingested or inhaled, the handling and storage of plutonium requires extensive safety measures and precautions. The process of transmuting plutonium, or converting it into less radioactive or stable elements, is a key focus in nuclear energy research and development. By transmuting plutonium, the goal is to reduce its radioactivity and environmental impact, making it a safer and more sustainable component of the nuclear fuel cycle. Additionally, advanced nuclear reactor designs, such as fast breeder reactors, aim to utilize plutonium more efficiently, reducing the overall amount of plutonium waste and enhancing the sustainability of nuclear energy.

Related terms

Transuranic Elements: Transuranic elements are elements with atomic numbers greater than 92 (the atomic number of uranium), such as plutonium, neptunium, and americium.

Nuclear Fission:

Nuclear fission is the process of splitting heavy atomic nuclei, such as plutonium, to release energy in the form of heat and radiation.

Nuclear Reactor: A nuclear reactor is a device that controls the release of nuclear energy by initiating and maintaining a self-sustaining nuclear chain reaction, often using plutonium as fuel.