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. Author manuscript; available in PMC: 2010 Nov 10.
Published in final edited form as: Phys Med Biol. 2010 Apr 6;55(9):2481–2493. doi: 10.1088/0031-9155/55/9/004

Figure 2.

Figure 2

Maximum deviations, ΔRmax, in WET values calculated by the analytical formulas relative to that given by the NM for (a) lead, (b) aluminum and (c) PMMA. The thicknesses of materials used were 1.5 cm lead, 2 cm aluminum and 10 cm PMMA for helium ions; 1.2 cm lead, 1.5 cm aluminum and 10 cm PMMA for carbon ions; 0.1 cm lead, 0.2 cm aluminum and 0.3 cm PMMA for iron ions.