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

From: A simulation study on using 252Cf for the treatment of esophagus tumor in human phantom

  Material compositions (weight fraction %)
Element Water Brain Muscle A-150
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