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Figure 1
The difference in absorption at the K-edge of iodine is used to enhance the contrast of iodine by logarithmic subtraction. EK is the energy at the K-edge (33.17 keV), E1 is the energy of the monochromatic X-ray beam below theK-edge, E2 is the energy above the K-edge, ΔE is the bandwidth of the two monochromatic beams, δE is the energy separation of the two monochromatic beams, ΔμI is the difference of the absorption coefficient of iodine for X-rays above and below the K-edge, ΔμB is the difference of the absorption coefficient of bone, and ΔμS is the difference of the absorption coefficient of soft tissue.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 10| Part 3| April 2003| Pages 219-227
doi:10.1107/S0909049503001973
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