OLIVEIRA, J.R.B.MORALLES, M.FLECHAS, D.CARBONE, D.CAVALLARO, M.TORRESI, D.ACOSTA, L.AGODI, C.AMADOR-VALENZUELA, P.BONANNO, D.BORELLO-LEWIN, T.BRISCHETTO, G.A.CALABRESE, S.CALVO, D.CAPIROSSI, V.CAPPUZZELLO, F.CHAVEZ-LOMELI, E.R.CIRALDO, I.DELAUNAY, F.DJAPO, H.EKE, C.FINOCCHIARO, P.FIRAT, S.FISICHELLA, M.FOTI, A.GALLO, G.GUAZZELLI, M.A.HACISALIHOGLU, A.IAZZI, F.LINARES, R.LO PRESTI, D.MA, J.MEDINA, N.H.PAKOU, A.PANDOLA, L.PETRASCU, H.PINNA, F.REITO, S.RIES, P.RUSSO, G.SGOUROS, O.SOLAKCI, S.O.SOUKERAS, V.SOULIOTIS, G.SPATAFORA, A.TUDISCO, S.WANG, J.S.YANG, Y.Y.YILDIRIM, A.ZAGATTO, V.A.B.2020-07-242020-07-242020OLIVEIRA, J.R.B.; MORALLES, M.; FLECHAS, D.; CARBONE, D.; CAVALLARO, M.; TORRESI, D.; ACOSTA, L.; AGODI, C.; AMADOR-VALENZUELA, P.; BONANNO, D.; BORELLO-LEWIN, T.; BRISCHETTO, G.A.; CALABRESE, S.; CALVO, D.; CAPIROSSI, V.; CAPPUZZELLO, F.; CHAVEZ-LOMELI, E.R.; CIRALDO, I.; DELAUNAY, F.; DJAPO, H.; EKE, C.; FINOCCHIARO, P.; FIRAT, S.; FISICHELLA, M.; FOTI, A.; GALLO, G.; GUAZZELLI, M.A.; HACISALIHOGLU, A.; IAZZI, F.; LINARES, R.; LO PRESTI, D.; MA, J.; MEDINA, N.H.; PAKOU, A.; PANDOLA, L.; PETRASCU, H.; PINNA, F.; REITO, S.; RIES, P.; RUSSO, G.; SGOUROS, O.; SOLAKCI, S.O.; SOUKERAS, V.; SOULIOTIS, G.; SPATAFORA, A.; TUDISCO, S.; WANG, J.S.; YANG, Y.Y.; YILDIRIM, A.; ZAGATTO, V.A.B. First comparison of GEANT4 hadrontherapy physics model with experimental data for a NUMEN project reaction case. <b>European Physical Journal A</b>, v. 56, n. 5, p. 1-9, 2020. DOI: <a href="https://dx.doi.org/10.1140/epja/s10050-020-00152-6">10.1140/epja/s10050-020-00152-6</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/31362.1434-6001http://repositorio.ipen.br/handle/123456789/31362Gamma-ray and neutron spectra from the 18O +76Se reaction at 15.3 MeV/u were measured with the EDEN array of liquid scintillators at the LNS. The results were compared to GEANT Hadrontherapy physics list simulations in order to assess the reliability of this model for the development of theNUMENproject.Agood agreement with the shape of the experimental gamma-ray spectra and a reasonable agreement with the total count rates were obtained. The gamma spectra originated from the nuclear reactions were selected by time coincidence with the Superconducting Cyclotron radio-frequency reference signal. The random coincidence background rate was appropriately described only when the Faraday Cup, the material and geometry of the experimental hall and its contents were included in the simulationwith sufficient detail. The information on the radiation spectra is important for the adequate development of the project of the detector arrays and electronic equipment for the advanced phase of NUMEN. Since orders of magnitude larger beam intensities are planned for this phase, the random coincidence rate is also of significant importance, particularly for the performance of the G-NUMEN gamma calorimeter array.1-9openAccessangular distributionbeam monitoringcoincidence spectrometrycomputerized simulationcounting ratesenergy spectraexternal beam radiation therapyfaraday cupsg codesgamma radiationmev range 100-1000neutron spectraoxygen 18 beamsselenium 76 targetArtigo de periódico55610.1140/epja/s10050-020-00152-6https://orcid.org/0000-0002-2664-553164.7976.00