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. 2017 Sep 19;7:223. doi: 10.3389/fonc.2017.00223

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Copyright © 2017 Cirrone, Cuttone, Raffaele, Salamone, Avitabile, Privitera, Spatola, Amico, Larosa, Leanza, Margarone, Milluzzo, Patti, Petringa, Romano, Russo, Russo, Sabini, Schillaci, Scuderi and Valastro.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Central section of the CATANA proton therapy beamline with some transport (collimators, modulators, and range shifters) and diagnostic (monitor chambers, on-line profile monitoring, and field simulator).