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. 2012 Nov 23;54(3):485–493. doi: 10.1093/jrr/rrs110

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© The Author 2012. Published by Oxford University Press on behalf of The Japan Radiation Research Society and Japanese Society for Therapeutic Radiology and Oncology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 8. — Depth–dose distributions for 155-MeV proton beams with the SOBP widths of 2, 4, 6, 8 and 10 cm, designed to be a constant RBE-weighted absorbed dose of 2 Gy (RBE) at the center of the SOBP. The solid and dashed lines represent the absorbed dose and RBE-weighted absorbed dose, respectively.