Equilibrium dose constant, Δi | ||||
---|---|---|---|---|
Principal radiation | Ei (keV)* | ni | (rad g μCi−1 h−1) | (Gy kg Bq−1 s−1) |
β | 185.6 | 0.000115 | 4.55E−05 | 3.42E−18 |
933.7 | 0.9999 | 1.99E+00 | 1.49E−13 | |
Auger electron | 2.02 | 0.000118 | 5.08E−07 | 3.81E−20 |
Conversion electron | 1,743 | 0.000102 | 3.79E−04 | 2.84E−17 |
↵* Average β-energy.
90Y has the following properties: physical half-life, 64.1 h; decay constant, 0.0108 h−1; and decay mode, β(−).