Copper-64

Copper-64
General
Symbol64Cu
Namescopper-64
Protons (Z)29
Neutrons (N)35
Nuclide data
Half-life (t1/2)12.700 h
Isotope mass63.929764 Da
Decay products64Ni
64Zn
Decay modes
Decay modeDecay energy (MeV)
Beta-minus0.580
Beta-plus (positron emission)0.653
Electron capture1.675
Isotopes of copper
Complete table of nuclides

Copper-64 (64Cu) is a positron and beta emitting isotope of copper (exhibiting both forms of beta decay), with applications in molecular radiotherapy and positron emission tomography. Its unusually long half-life (12.7 hours) for a positron-emitting isotope makes it increasingly useful when attached to various ligands for PET and PET-CT scanning.