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Simulation of the energy loss of proton beams interacting with few layer graphene foils
Journal
Journal of Physics: Conference Series
Date Issued
2017-08-18
Author(s)
Esteve-Paredes, Juan José
Valdés, Jorge E.
Sánchez-Claros, Jaime
Abril, Isabel
Garcia-Molina, Rafael
Abstract
We have simulated the passage of proton beams, having energies E < 10 keV, through graphene targets, considering the case of few layer foils. For this purpose and for comparison, we implement Monte Carlo and deterministic semi-classical approaches to describe the interaction of protons with carbon atoms in graphene structures. Our results show that the energy loss through a single layer graphene foil is smaller than recent ab initio calculations based on time dependent density functional theory (TD-DFT). Besides, for E > 6 keV the energy loss into a graphene target composed of n layers is n times the energy loss through a single layer graphene foil.
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