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Table 1 Physical characteristics of relevant Sc radioisotopes

From: Production of scandium radionuclides for theranostic applications: towards standardization of quality requirements

Radionuclide Half-life Decay mode Energy of particles or photons (keV)
43Sc 3.89 h β+ 1198
825
γ 372
44gSc 3.97 ha β+ 1475
γ 1157
44mSc 58.6 h γ 271
1002
1126
1157
46Sc 83.79 d β 357
γ 889
1121
47Sc 3.35 d β 600
439
γ 153
1120
48Sc 43.7 h β 654
485
γ 183
1037
1312
  1. aIt is worth noting that most of the sources provide the half-life of 44Sc T1/2 = 3.97 h. This value has been recently re-determined by Garcia-Tarrano et al. (Garcia-Torano et al. 2016) to be T1/2 = 4.042 h, about 2% higher than the earlier recommended value