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X-ray attenuation and emission spectra. X-ray mass attenuation coefficients of adipose tissue, water, Pyrex glass, bone, and elemental iodine show how iodine has a 5- to 30-fold stronger attenuation than biological materials and glass in the range of photon energies produced by a tungsten target (W emission). Figure generated de novo from data published in Hammersberg et al., Linköping Electron Artic Mech Eng, 1998, 1, 1–13, and Hubbell and Seltzer, 1996.
