Table 1 Decay characteristics for 161Tb and 177Lu [17]. Photon emission with low yields (< 0.3%) have been omitted
From: Establishment of a clinical SPECT/CT protocol for imaging of 161Tb
161Tb | 177Lu | |
|---|---|---|
Half-life [days] | 6.9 | 6.7 |
Mean energy β- [keV] | 154 | 134 |
Energy γ (yield [%]) | 25.7 (23) | 112.9 (6.2) |
48.9 (17) | 208.4 (10.4) | |
57.2 (1.8) | ||
74.6 (10) | ||
87–550 (0.5) | ||
Energy X-ray (yield [%]) | 6.50 (6.8) | 7.90 (1.5) |
7.20 (1.5) | 9.02 (1.1) | |
7.37 (2.4) | 54.6 (1.6) | |
7.64 (1.4) | 55.8 (2.8) | |
45.2 (6.6) | ||
46.0 (11) | ||
51.9 (1.2) | ||
52.1 (2.3) | ||
Energy conversion and Auger electrons [keV] (yield [%]) | 0–0.1 (72) | 0–0.1 (27) |
0.1–1 (738) | 0.1–1 (55) | |
1–10 (303) | 1–10 (30) | |
10–20 (42) | 10–20 | |
20–30 (18) | 20–30 | |
30–40 (39) | 30–40 | |
0–40 (1213) | 0–40 (111) |