Time (min)

218Po

214Po

Thoracic region

Exthrathoracic region

Thoracic region

Exthrathoracic region

AI

bb

BB

ET1

ET2

AI

bb

BB

ET1

ET2

10

1.31 × 10−8

2.23 × 10−6

7.08 × 10−7

6.82 × 10−7

2.49 × 10−5

3.80 × 10−15

6.29 × 10−13

1.83 × 10−13

1.96 × 10−13

9.05 × 10−12

20

1.95 × 10−8

3.31 × 10−6

1.05 × 10−6

1.01 × 10−6

3.70 × 10−5

5.65 × 10−15

9.36 × 10−13

2.73 × 10−13

2.92 × 10−13

1.34 × 10−11

30

2.20 × 10−8

3.74 × 10−6

1.19 × 10−6

1.14 × 10−6

4.18 × 10−5

6.39 × 10−15

1.05 × 10−12

3.08 × 10−13

3.30 × 10−13

1.52 × 10−11

40

2.24 × 10−8

3.82 × 10−6

1.21 × 10−6

1.16 × 10−6

4.27 × 10−5

6.51 × 10−15

1.07 × 10−13

3.14 × 10−13

3.37 × 10−13

1.55 × 10−11