Figure 1 | Scientific Reports

Figure 1

From: Exploring the advantages of intensity-modulated proton therapy: experimental validation of biological effects using two different beam intensity-modulation patterns

Figure 1

Dose and LETd distributions from a single flat SOBP and a downslope SOBP. (A) The dose of a flat SOBP and its beam constituents. The higher energy beams contribute more to the total dose. (B) In a downslope target dose profile, the intensities of the lower energy beams are higher than in panel (A). (C) The LETd distribution from the flat SOBP. (D) The LETd distribution from the downslope field.

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