Table 1 Properties of commonly used radioisotopes in radiotherapy

¹¹¹Indium

(¹¹¹In)

Auger

2.5–25 keV

10 µm

(Giovacchini et al. 2012)

γ

173–247 keV

¹⁷⁷Lutetium

(¹⁷⁷Lu)

β⁻

E _max = 0.497 MeV

E _mean = 0.149 MeV

2 mm

(Giovacchini et al. 2012; Nilsson et al. 2011)

γ

113 ~ 321 keV

¹⁸⁸Rhenium

(¹⁸⁸Re)

β⁻

2.12 MeV

3.5 mm

(Lin et al. 2014; Phaeton et al. 2016)

γ

155 keV

⁹⁰Yttrium

(⁹⁰Y)

β⁻

E _max = 2.28 MeV

E _mean = 0.935 MeV

4.1–11.3 mm

(Giovacchini et al. 2012; Kennedy 2014)