Ranges of protons in biological targets

Author:

Pavlovič Márius1,Hammerle Andreas2

Affiliation:

1. Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, Ilkovičova 3, 81219 Bratislava , Slovakia

2. University of Applied Sciences in Wiener Neustadt, Johannes-Gutenberg-Strasse 3, A-2700 Wiener Neustadt , Austria

Abstract

Abstract The paper introduces a simple fitting function for quick assessment of proton ranges in biological targets and human tissues. The function has been found by fitting an extensive data set of Monte Carlo proton ranges obtained with the aid of the SRIM-2013 code. The data has been collected for 28 different targets at 8 energies in the interval from 60 MeV to 220 MeV. The paper shows that at a given kinetic proton-beam energy, the Monte Carlo ranges can be satisfactorily fitted by a power function that depends solely on the target density. This is a great advantage for targets, for which the exact chemical composition is not known, or the mean ionizing potential is not reliably known. The satisfactory fit is meant as the fit that stays within the natural range straggling of the Monte Carlo ranges. In the second step, the energy-scaling yielding a universal fitting formula for proton ranges as a function of proton-beam energy and target density is introduced and discussed.

Publisher

Walter de Gruyter GmbH

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Range versus density dependence of proton-therapy beams in human tissues;Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms;2018-11

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