Positron emission

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 "beta plus"(β+ ). In beta plus decay, a proton is converted to a neutron via the weak nuclear force and a beta minus particle (a positron) and a neutrino are emitted. Example isotopes which emit positrons are C-11, N-13, O-15 and F-18. These isotopes are used in Positron emission tomography.

See also Beta decay