Wet electrons are produced when high-energy radiation, such as gamma rays, X-rays, or energetic particles, ionizes water molecules. This ionization results in the liberation of electrons, which, instead of remaining free, can become transiently localized due to interactions with the surrounding water molecules. This localization occurs as the electron induces a polarization in nearby water molecules, creating a potential well that temporarily stabilizes the electron in a state known as the wet electron.