Nuclear processes

Radioactive decay processes Alpha decay Beta decay Electron capture Gamma radiation Neutron emission Positron emission Proton emission Spontaneous fission Nucleosynthesis Neutron Capture The R-process The S-process Proton capture: The P-process

Positron emission is a type of beta decay, referred to as "beta plus" (β⁺). In beta plus decay, a proton is converted to a neutron via the weak nuclear force and a beta plus particle (a positron) and a neutrino are emitted. Isotopes which emit positrons include C-11, N-13, O-15 and F-18; for example: