Simulation study and validation of the read-out electronics design for a high-resolution Plastic Scintillating Fiber based hodoscope for beam positioning

This work presents a study of a high-resolution Plastic Scintillating Fiber (PSF) based hodoscope for beam positioning and beam calibration. The aim of this work is to provide useful information to carry out a sound comparison between the results obtained from the electronics read-out designed for the hodoscope versus the results obtained from Geant4 simulations of the PSF detector; therefore, to validate the correct functioning of the device with the proposed read-out electronics design. To carry out this task, the physical properties of the hodoscope and its geometry have been described in the simulations as close as possible to the real detection system, as well as the real test conditions. Hence, we present, on the one hand, simulations in which β particles impinge the device: these simulations will be validated by comparing them with real measurements obtained when irradiating the PSF hodoscope with a Sr-90 (33 MBq) source. On the other hand, we present simulation results of the modeled detector when a proton source with different energies is placed over the device: in this case, simulations results will prove the feasibility of the proposed detector in applications such as hadrontherapy.