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  1. What is Nuclear Energy? The Science of Nuclear Power

    Nov 11, 2025 · What is nuclear fission? Nuclear fission is a reaction where the nucleus of an atom splits into two or more smaller nuclei, while releasing energy. For instance, when hit by a …

  2. Nuclear power reactors, reactor types and technologies | IAEA

    Nov 7, 2025 · Nuclear power reactors produce energy by initiating and controlling a sustained nuclear chain reaction. Currently, over 400 such reactors in 32 countries provide about 10 per …

  3. What are Small Modular Reactors (SMRs)? | IAEA

    Sep 13, 2023 · Small modular reactors (SMRs) are advanced nuclear reactors that produce up to 300 MW (e) of low-carbon electricity, which is about one-third of the generating capacity of …

  4. What are Molten Salt Reactors (MSRs)? | IAEA

    Mar 11, 2025 · Molten Salt Reactors (MSRs) are nuclear fission reactors in which either the fuel and/or the coolant is a molten salt. Molten salt is salt which liquifies at elevated temperatures …

  5. Water cooled reactors | IAEA

    Dec 22, 2021 · Water cooled reactors have played a significant role in the commercial nuclear industry since its beginnings and currently account for more than 95 per cent of all operating …

  6. Thorium’s Long-Term Potential in Nuclear Energy: New IAEA Analysis

    Mar 13, 2023 · In August 2021, China announced the completion of its first experimental thorium-based nuclear reactor. Built in the middle of the Gobi Desert in the country’s north, the reactor …

  7. Small Modular Reactors: Advances in SMR Developments 2024

    Jul 7, 2024 · It also examines the unique global role the IAEA plays in supporting the establishment of sustainable nuclear power programmes and in catalysing technology …

  8. Nuclear Reactor Simulators for Education and Training

    These simulators provide efficient hands-on learning of the physics and engineering designs of various reactor types. The simulators operate on personal computers and are provided for a …

  9. Small modular reactors (SMR) | IAEA

    Jul 7, 2024 · Small and medium-sized or modular reactors are an option to fulfil the need for flexible power generation for a wider range of users and applications. Small modular reactors, …

  10. Design of nuclear power plants | IAEA

    Mar 2, 2025 · The design of a nuclear power plant needs to consider specific site characteristics, operational aspects and future decommissioning plans so as to achieve the highest levels of …