Skip to main content

Table 1 Absolute values (counts per minute ✕ 1000) measured in a Geiger-Müller detector for the radiopharmaceutical 18F-FDG, with lead and polymer shields

From: Radioprotective efficacy of plastic polymer against the toxicogenomic effects of radiopharmaceutical 18F-FDG on human lymphocytes

18F-FDG

Distance

Unshielded

Lead

Polymer

Polymer + Lead

Lead + Polymer

A =

4.90

mCi

5 cm

sat

sat

sat

sat

sat

10 cm

sat

sat

sat

sat

sat

20 cm

225

229,9

185

226,8

171,9

60 cm

30

34,8

27,4

31,8

24,7

A =

2.60

mCi

5 cm

sat

sat

sat

sat

sat

10 cm

sat

sat

266

sat

252

20 cm

134

142

106,2

134

96,8

60 cm

26,8

28,4

21,2

27

20,8

A =

0.68

mCi

5 cm

163

176

130,2

172,4

121,3

10 cm

89

90,4

73,3

86

65,1

20 cm

34

38

25,3

35

22,6

60 cm

4

3,8

3,8

3,8

3,5

  1. A: radioactive activity of the element. Sat: saturation of the monitor, making measurement impossible