Material category

Rod material

Relative electron density

Mass density [g/cm³]

Theoretical effective atomic number

LUNG

LN300

0.29

0.29

7.86

LN450

0.45

0.46

7.84

SOFT TISSUE

Adipose

0.92

0.94

6.40

Breast

0.96

0.98

7.24

Solid water

0.99

1.02

8.11

Brain

1.05

1.05

6.31

SOFT BONE

Inner bone

1.10

1.14

10.9

Bone mineral

1.11

1.15

10.9

BONE

CB2-30%

1.28

1.33

11.4

CB2-50%

1.47

1.56

13.0

Cortical bone

1.70

1.82

14.1