Table 1 Isotopic composition and mass densities used for water, brain, muscle, and A-150 tissue-equivalent plastic [20]

¹H

11.19

10.6968

10.1969

10.1297

C

0.0032

0.0031

0.0030

¹⁴N

-

14.5

14.3

77.5500

¹⁵N

-

2.19128

3.38652

3.4918

¹⁶O

-

0.00872

0.01348

0.0139

¹⁷O

88.81

71.175

70.9716

5.2295

¹⁹F

0.0285

0.0284

0.0021

²³Na

-

-

-

1.742

³¹P

-

0.2

0.1

-

³²S

-

0.4

0.2

-

Cl

-

0.2

0.3

-

Ar

-

0.3

0.1

-

K

-

0.3

0.4

-

Ca

-

-

-

1.8375

Mass density (g.cm⁻³)

1

1.04

1.05

1.127