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. Author manuscript; available in PMC: 2012 Jan 15.
Published in final edited form as: Phys Med Biol. 2007 Jan 10;52(3):603–616. doi: 10.1088/0031-9155/52/3/005

Table 2.

Measured beam hardening (%) at 60 kVp across all experimental Ce filter setups.

Beam attenuation value layer
Unfiltered
Glandular tissue (%)
200th VL
Glandular tissue (%)
500th VL
Glandular tissue (%)
Breast
thickness (cm)
0 50 100 0 50 100 0 50 100
  8 19.1 17.5 14.2 3.00 1.34 3.99 0.98 1.41 1.25
12 17.0 20.0 22.7 1.78 2.35 2.68 0.74 1.11 1.42
16 19.6 23.0 25.8 2.25 2.78 3.71 0.86 1.12 1.82
18 20.1 24.4 26.1 2.18 2.70 4.44 0.78 1.09 1.95