Radionuclide

Daughter Nuclei

E (KeV)

Photon Disintegration %

²²⁶Ra

²¹⁴Pb

295.09

20

351.87

38

²¹⁴Bi

609.31

49

1120.27

16

1764.49

16

²³²Th

²²⁸Ac

338.32

13

911.16

30

968.97

18

²¹²Bi

727.25

08

²⁰⁸Tl

583.10 - 2614.48

33

36

⁴⁰K

⁴⁰Ar

1460.8

11