The 1986 Chornobyl nuclear power plant accident | IAEA
Jun 13, 2013 · IAEA, Vienna, 2008 (ISSN 0074–1884; STI/PUB/1312; ISBN 978–92–0–110807–4) On 26 April 1986, the Number Four reactor at the Chornobyl Nuclear Power Plant in what then was the Soviet Union during improper testing at low-power, resulted in loss of control that led to an explosion and fire that demolished the …
What is Nuclear Energy? The Science of Nuclear Power | IAEA
Nov 15, 2022 · The Science of Nuclear Power. Nuclear energy is a form of energy released from the nucleus, the core of atoms, made up of protons and neutrons. This source of energy can be produced in two ways: fission – when nuclei of atoms split into several parts – or fusion – when nuclei fuse together. The nuclear energy harnessed around the world ...
International Atomic Energy Agency | Atoms for Peace and …
24 October 2024 Update 256 – IAEA Director General Statement on Situation in Ukraine. Ukraine’s Zaporizhzhya Nuclear Power Plant (ZNPP) lost the connection to its only remaining 330 kilovolt (kV) back-up power line for a second time this month, once again leaving the facility dependent on one single source of the external electricity it needs for …
What is Uranium? | IAEA - International Atomic Energy Agency
Aug 16, 2023 · There are three natural isotopes of uranium — uranium-234 (U-234), uranium-235 (U-235) and uranium-238 (U-238). U-238 is the most common one, accounting for around 99 per cent of natural uranium found on earth. Most nuclear reactors use fuels containing U-235, however, natural uranium typically contains only 0.72 per cent of U-235 and, most reactors need a higher concentration of this ...
Treaty on the Non-Proliferation of Nuclear Weapons (NPT) | IAEA
May 3, 2023 · The NPT was opened for signature in 1968 and entered into force on 5 March 1970.On 11 May 1995, the Treaty was extended indefinitely. With 191 States parties, it is the most widely adhered to treaty in the field of nuclear non-proliferation, peaceful uses of nuclear energy and nuclear disarmament.
What is Nuclear Fusion? - International Atomic Energy Agency
03 Aug 2023. Matteo Barbarino, IAEA Department of Nuclear Sciences and Applications. Nuclear fusion is the process by which two light atomic nuclei combine to form a single heavier one while releasing massive amounts of energy. Fusion reactions take place in a state of matter called plasma — a hot, charged gas made of positive ions and free ...
What is Radiation? | IAEA - International Atomic Energy Agency
25 Jan 2023. Andrea Galindo, IAEA Office of Public Information and Communication. Radiation is energy that moves from one place to another in a form that can be described as waves or particles. We are exposed to radiation in our everyday life. Some of the most familiar sources of radiation include the sun, microwave ovens in our kitchens and ...
Frequently Asked Chernobyl Questions | IAEA
On April 26, 1986, the Number Four RBMK reactor at the nuclear power plant at Chernobyl, Ukraine, went out of control during a test at low-power, leading to an explosion and fire that demolished the reactor building and released large amounts of radiation into the atmosphere. Safety measures were ignored, the uranium fuel in the reactor overheated and melted through the
What are Isotopes? - IAEA
Aug 19, 2022 · This is known as isotope hydrology. (Graphic: A. Vargas/IAEA) Stable isotopes can be used to study land, humans, animals, insects and plants. For example, isotopes are used to map the migration path of butterflies and help protect the resources in their breeding environment. They can also be used in agriculture.
What are Small Modular Reactors (SMRs)? - International Atomic …
Sep 13, 2023 · Small – physically a fraction of the size of a conventional nuclear power reactor. Modular – making it possible for systems and components to be factory-assembled and transported as a unit to a location for installation. Reactors – harnessing nuclear fission to generate heat to produce energy. Learn more about nuclear fission and energy.