Fig 1.
Spectrum of the red and yellow tattoo ink used in this study.
Fig 2.
Spectrum of the blue and black tattoo ink used in this study.
Fig 3.
Element concentration for the black, red, blue, and yellow tattoo inks as a function of the atomic number, Z.
Fig 4.
Dose perturbation scatter plots for the black, red, blue, and yellow tattoo ink for 6-20 MeV electron beam energies.
Table 1.
Major element composition for the tattoo inks.
Table 2.
Type B uncertainties.