Material

μ(cm⁻¹)

CT-numbers (HU)

HU Range

CT-scanner n˚

1

2

3

4

5

Air

1.89E−04

−991.4

−996.6

−971.48

−1026.62

−1010.4

−1046: −986

Lung

2.87E−02

−823.2

−827.3

−805.61

−833.01

−838.3

−925:−810

PMP

1.36E−01

−188.8

−189.9

−181.24

−183.06

−189.8

−220:−172

LDPE

1.51E−01

−100.8

−107.2

−92.18

−93.69

−100.5

−121: −87

Polystyrène

1.59E−01

−41.6

−55.5

−35.85

−26.39

−40.2

− 65:−29

Water

1.61E−01

−1.4

−1.9

−2.43

7.19

1.7

−7:7

Acrylic

1.84E−01

119.5

122.5

111.16

126.98

118.6

92:137

Bone 20%

1.78E−01

239.1

242.7

222.63

260.24

248.2

211: 263

Delrin®

2.19E−01

321.3

325.3

339.18

363.13

356.1

344: 387

Bone 50%

2.25E−01

669.7

669.6

640.62

749.11

720.4

667:783

Teflon

3.05E−01

922.6

981.37

960.22

981.37

967.5

941:1060