Time (min)

Ac (222Rn)

Ac (218Po)

Ac (214Pb)

Ac (214Bi)

Ac (214Po)

F

5

249.35

163.48

92.84

81.35

81.35

0.38

10

417.27

287.18

172.88

151.96

151.96

0.42

20

604.54

432.19

271.72

239.32

239.32

0.45

30

701.18

516.85

336.06

296.40

296.40

0.48

35

713.91

539.64

360.45

318.22

318.22

0.50

40

714.8

555.96

382.54

338.05

338.05

0.53