Dose 2016

Tissue and Phantom Material Characterization -as used in Oncentra MP-

Composition

H

H

ρ

ρ

elec

mass

DCM

ρ

ρ

elec,H O

mass,H O

2

2

A ir (ou tside patient)

0 .00121

0 .00109

-992

-128

A ir (inside pa tien t)

0 .00121

0 .00109

-976

-127

Lung (ICRU 44 )

0 .50

0 .50

-480

-96

Ad ipose (ICRU 44 )

0 .95

0 .95

-96

-72

Muscle (ICRU 44 )

1 .05

1 .04

48

-63

Ca rtilage (ICRP 23 )

1 .10

1 .08

128

-58

2 /3 Ca rtilage , 1/3 Bone

1 .35

1 .29

528

-33

1 /3 Ca rtilage , 2/3 Bone

1 .60

1 .52

976

-5

Bone (ICRP 23 )

1 .85

1 .72

1488

27

Bone (ICRP 23 )

2 .10

1 .95

1824

48

½ Bone , ½ A lum inum

2 .40

2 .15

2224

73

A lum inum

2 .70

2 .34

2640

99

A lum inum

2 .83

2 .46

2832

111

Iron

7 .87

6 .60

>2832

112

Water

1 .00

1 .00

-

“127 ”

Note: Water is not part of an anatomical scale The scale will interpret a water CT-image as a mixture of adipose and muscle Plastics are not part of the scale either