Uranium-235 Fission

概要

A uranium-235 nucleus absorbs a slow neutron and splits into barium-141 and krypton-92, releasing three neutrons and approximately 200 MeV of energy. This is one of many possible fission product combinations. The three released neutrons can trigger further fissions, creating a chain reaction. One kg of U-235 releases energy equivalent to 20,000 tonnes of TNT.

参加者

日常の例

Nuclear power plants use controlled U-235 fission to generate about 10% of the world's electricity without direct CO₂ emissions.

産業上の重要性

核分裂は世界440基の原子炉から年間約2,700 TWhの電力を発電し、信頼性の高いベースロード電源を提供する。