Non-convergence of Geant4 hadronic models for 10 and 30 MeV protons in 18O and 14N

• Published in: Applied radiation and isotopes Vol. 67; no. 3; pp. 406 - 414
• Main Authors: Chin, M.P.W., Spyrou, N.M.
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01-03-2009
• Subjects: Geant4; Hadronic models; Monte Carlo; Protons; Validation; Protons; Hadronic models; Validation; Monte Carlo; Geant4
• ISSN: 0969-8043; 1872-9800
• DOI: 10.1016/j.apradiso.2008.06.029

We investigated Geant4 Monte Carlo simulation of protons interactions in
18O and
14N. With proton incident energies of 10 and 30
MeV, we compared the different Geant4 models available for proton inelastic collisions: the low-energy parameterisation, Bertini cascade and precompound models. The models produced different (1) combinations of secondary particles and (2) final states of secondary particles. The non-convergence suggests that the hadronic models, yet to be benchmarked for this energy range, are not ready for production-mode problem-solving.