Radionuclides in clinical use


Radionuclide Half Life Decay Mode Emissions
C-11 20.3 min β+ γ 0.511 (200%)
Cs-137 30 yr β- γ 0.660 (85%)
Cr-51 27.8 day EC γ 0.320 (10%)
Co-57 270 day EC γ 0.122 (86%)
γ 0.136 (11%)
Co-58 71.3 day EC and β+ γ 0.811 (99%)
γ 0.511 (31%)
Co-60 5.26 yr β- γ 1.173 (100%)
γ 1.332 (100%)
F-18 109 min EC and β+ γ 0.511 (194%)
Gd-153 240 day EC γ 0.100 (55%)
γ 0.040
γ 0.048
Ga-67 78.1 hr EC γ 0.093 (38%)
γ 0.184 (24%)
γ 0.296 (16%)
γ 0.388 (4%)
Ga-68 68.3 min EC and β+ γ 0.511 (178%)
γ 1.077 (3%)
In-111 67 hr EC γ 0.172 (90%)
γ 0.247 (94%)
I-123 13.2 hr EC γ 0.159 (83%)
I-131 80.6 day β- γ 0.284 (6%)
γ 0.364 (82%)
γ 0.637 (7%)
β- 0.192 (90%)
Kr-81m 13 sec IT γ 0.191 (66%)
Mo-99 66.7 hr β- γ 0.181 (8%)
γ 0.740 (14%)
γ 0.778 (5%)
N-13 10 min β+ γ 0.511 (200%)
O-15 124 sec β+ γ 0.511 (200%)
P-32 14.3 day β- β- 0.695 (100%)
Ra-223 11.4 day α α 5.2-5.8 (100%)
β- 0.003 (52%)
γ 0.01 (25%)
γ 0.08 (25%)
Re-186 90 hr EC γ 0.137 (9%)
β- 1.07 (93%)
Rb-82 1.3 min EC and β+ γ 0.511 (189%)
γ 0.777 (13%)
Sm-153 46.3 hr β- γ 0.103 (30%)
β- 0.640 (30%)
β- 0.710 (50%)
β- 0.810 (20%)
Sr-87m 2.8 hr IT and EC γ 0.388 (83%)
Sr-89 50.5 day β- β- 1.463 max (100%)
Tc-99m 6.03 hr IT γ 0.140 (88%)
Tl-201 73 hr EC γ 0.135 (2%)
γ 0.167 (8%)
Hg x-rays 0.069-0.081
Xe-127 36.4 day EC γ 0.145 (4%)
γ 0.172 (25%)
γ 0.203 (68%)
γ 0.375 (18%)
Xe-133 5.3 day β- γ 0.081 (36%)
Y-90 64 hr β- γ 0.93 (99%)

EC: Electron capture, IT: Isomeric transition