EJNMMI Physics

Table 1 Decay chain of ²²³Ra and its progeny to stable ²⁰⁷Pb (from [6])

From: Radiopharmacokinetic modelling and radiation dose assessment of ²²³Ra used for treatment of metastatic castration-resistant prostate cancer

Radionuclide	Decay mode	Abundance (%)	Half-life
²²³Ra ➔ ²¹⁹Rn	α	100	11.43 d
²¹⁹Rn ➔ ²¹⁵Po	α	100	3.96 s
²¹⁵Po ➔ ²¹¹Pb	α	100	1.78 ms
²¹¹Pb ➔ ²¹¹Bi	β^-	100	36.1 min
²¹¹Bi ➔ ²¹¹Po	β^-	0.276	2.14 min
²¹¹Bi ➔ ²⁰⁷TI	α	99.72	2.14 min
²¹¹Po ➔ ²⁰⁷Pb	α	100	0.516 s
²⁰⁷TI ➔ ²⁰⁷Pb	β^-	100	4.77 min

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