Title: A comparison based on the calculation of some hadron doses in addition to the secondary neutron fluence using the FLUKA Monte Carlo code

Authors: Mohammed Yjjou; Hassane Dekhissi; Jamal Eddine Derkaoui; Abdessamad Didi; Adil Aknouch

Addresses: Department of Physics, LPTPM Laboratory, Faculty of Sciences, University of Mohammed Ist, Oujda, Morocco ' Department of Physics, LPTPM Laboratory, Faculty of Sciences, University of Mohammed Ist, Oujda, Morocco ' Department of Physics, LPTPM Laboratory, Faculty of Sciences, University of Mohammed Ist, Oujda, Morocco ' Department of Physics, LPTPM Laboratory, Faculty of Sciences, University of Mohammed Ist, Oujda, Morocco ' Department of Physics, Nuclear Physics and Techniques Team, Faculty of Science, Ibn Tofail University, Kenitra, Morocco

Abstract: In this paper, we introduce a new comparison based on the calculation of some hadron doses in addition to the secondary neutron fluence using the FLUKA MC code. At first, the dose depths of the hadrons were compared, which provided the description of the difference between their distributions and those of the photons. After that, it was proposed that a tumour was at a precise depth. Then the energy used only by protons and carbons was tested because of the usefulness they possess at this depth. In a second phase, the secondary neutrons' fluence given by protons and carbon ions was compared according to their energy and solid angle of production. This study shows the importance of taking into account the distribution of secondary particles, especially neutrons, along with the dose distribution of accelerated hadrons in hadrotherapy to improve the irradiation accuracy.

Keywords: Monte Carlo codes; hadrotherapy; dose; hadrons; fluence; secondary neutrons; tumour.

DOI: 10.1504/IJNEST.2020.117700

International Journal of Nuclear Energy Science and Technology, 2020 Vol.14 No.4, pp.302 - 309

Received: 26 Dec 2020
Accepted: 28 Mar 2021

Published online: 21 Sep 2021 *

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