Scandium-44

Scandium-44
General
Symbol44Sc
Namesscandium-44
Protons (Z)21
Neutrons (N)23
Nuclide data
Natural abundanceTrace
Half-life (t1/2)4.042 h
Isotope mass43.959403 Da
Spin2+
Parent isotopes44Ti (EC)
Decay products44Ca
Decay modes
Decay modeDecay energy (MeV)
β+3.653
Isotopes of scandium
Complete table of nuclides

Scandium-44 (44Sc) is a radioactive isotope of scandium that decays by positron emission to stable 44Ca with a half-life of 4.042 hours.

44Sc can be obtained as a daughter radionuclide of long-lived 44Ti (t1/2 59.1 a) from a 44Ti/44Sc generator or produced by the nuclear reaction 44Ca(p,n)44Sc in small cyclotrons. This isotope is of potential interest for clinical PET imaging.