9 results about "Positron emission" patented technology

Positron emission or beta plus decay (β⁺ decay) is a subtype of radioactive decay called beta decay, in which a proton inside a radionuclide nucleus is converted into a neutron while releasing a positron and an electron neutrino (νₑ). Positron emission is mediated by the weak force. The positron is a type of beta particle (β⁺), the other beta particle being the electron (β⁻) emitted from the β⁻ decay of a nucleus.