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. Author manuscript; available in PMC: 2010 Mar 21.
Published in final edited form as: Phys Med Biol. 2009 Feb 19;54(6):1533–1553. doi: 10.1088/0031-9155/54/6/009

Figure 4.

Figure 4

The measured entrance exposure as a function of distance from the x-ray source and the estimated dose using (the inverse distance (1/r) and the inverse square distance (1/r2) law.