Basic Study
Copyright ©The Author(s) 2017.
World J Radiol. Feb 28, 2017; 9(2): 63-71
Published online Feb 28, 2017. doi: 10.4329/wjr.v9.i2.63
Figure 1
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Figure 1 Schematic diagrams (not-to-scale) showing the experimental setups of the kilovoltage photon beams (left) and megavoltage electron beams (right). The thicknesses of the skin target layer (water mixed with nanoparticles) ranged from 0.5-5 mm for the photon beams and 0.5-10 mm for the electron beams. SSD: Source-to-surface distance.
Figure 2
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Figure 2 Relationship between the dose enhancement ratio and skin target thickness with variation of Au nanoparticle concentration using the 105 and 220 kVp photon beams. DER: Dose enhancement ratio.
Figure 3
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Figure 3 Relationship between the dose enhancement ratio and skin target thickness with nanoparticle concentrations of (A) 7, (B) 18 and (C) 40 mg/mL using the Au, Pt , I, Ag and Fe2O3 nanoparticles for the 105 and 220 kVp photon beams. DER: Dose enhancement ratio.
Figure 4
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Figure 4 Relationship between the dose enhancement ratio and Au nanoparticle concentration with variation of the skin target thickness using the 105 and 220 kVp photon beams. DER: Dose enhancement ratio.
Figure 5
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Figure 5 Relationship between the dose enhancement ratio and nanoparticle concentration with skin target thickness equal to (A) 0. 5, (B) 3 and (C) 5 mm using the Au, Pt, I, Ag and Fe2O3 nanoparticles for the 105 and 220 kVp photon beams. DER: Dose enhancement ratio.
Figure 6
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Figure 6 Relationship between the dose enhancement ratio and skin target thickness with different Au nanoparticle concentrations using the 4 and 6 MeV electron beams. DER: Dose enhancement ratio.
Figure 7
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Figure 7 Relationship between the dose enhancement ratio and Au nanoparticle concentration with variation of skin target thickness using the (A) 4 and (B) 6 MeV electron beams. DER: Dose enhancement ratio.
Figure 8
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Figure 8 Relationship between the dose enhancement ratio and nanoparticle concentrations of the Au, Pt, I, Ag and Fe2O3 using the (A) 4 and (B) 6 MeV electron beams. The thickness of the target layer is equal to 2 mm. DER: Dose enhancement ratio.