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. 2016 May 17;11:68. doi: 10.1186/s13014-016-0642-6

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© Giovannini et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 4 — Left: D _RBE and RBE profiles as function of depth calculated with the three biological models for the (α/β)_x = 2 Gy tissue and assuming an RBE of 1.1 are depicted. Dose and LET_D values are also shown in the upper panel. Right: lateral D_RBE and RBE profiles in the middle of the SOBP for the three biological models for the (α/β)_x = 2 Gy tissue are shown together with RBE = 1.1 assumption. LET_D values are also shown in the upper panel