Sample No.

U (ug/g)

Th (ug/g)

Ka (ug/g)

Annual dose (mrad/a)

De (Gy)

Error (%)

TL (Ka)

1

2.303

13.92

24,710

4.1619

292.43

4

70.3 ± 2.8

12

2.291

12.8

23,760

3.9717

314.67

4

79.2 ± 3.2

18

2.201

12.49

28,430

4.0115

344.26

4

85.8 ± 3.4

28

2.169

12.71

23,720

3.9058

392.74

5

100.5 ± 5.0

39

2.230

12.25

25,650

3.8785

431.27

5

111.2 ± 5.6

56

2.143

12.50

26,580

4.0297

521.23

5

129.3 ± 6.4