Table 1 Decay properties of ¹⁶¹Tb and ¹⁷⁷Lu [3]

Half-life

6.9 d

6.7 d

Eβ⁻ _av (intensity)

154 keV (1.00)

134 keV (1.00)

Eγ (intensity)

25.7 keV (0.23)

112.9 keV (0.062)

45 (0.18)*

208.4 keV (0.104)

48.9 keV (0.17)

74.6 keV (0.10)

E of Auger and conversion electrons (intensity)

0–0.1 keV (0.72)

0–0.1 keV (0.27)

0.1–1 keV (7.38)

0.1–1 keV (0.55)

1–10 keV (3.03)

1–10 keV (0.30)

10–20 keV (0.42)

20–30 keV (0.18)

30–40 keV (0.39)

30–40 keV (0.72)

40–50 keV (0.23)

40–50 keV (0.05)

0–50 keV (12.4)

0–50 keV (1.11)