Simulation of radioactive decay in GEANT Monte Carlo codes: comparison between spectra and efficiencies computed with sch2for and G4RadioactiveDecay

M Capogni; S Lo Meo; A Fazio

doi:10.1016/j.apradiso.2009.12.024

Simulation of radioactive decay in GEANT Monte Carlo codes: comparison between spectra and efficiencies computed with sch2for and G4RadioactiveDecay

Appl Radiat Isot. 2010 Jul-Aug;68(7-8):1428-32. doi: 10.1016/j.apradiso.2009.12.024. Epub 2009 Dec 21.

Authors

M Capogni¹, S Lo Meo, A Fazio

Affiliation

¹ ENEA Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti (INMRI), Centro Ricerche Casaccia, Rome, Italy. marco.capogni@enea.it

PMID: 20089412
DOI: 10.1016/j.apradiso.2009.12.024

Abstract

Two CERN Monte Carlo codes, i.e. GEANT3.21 and GEANT4, were compared. The specific routine (sch2for), implemented in GEANT3.21 to simulate a disintegration process, and the G4RadioactiveDecay class, provided by GEANT4, were used for the computation of the full-energy-peak and total efficiencies of several radionuclides. No reference to experimental data was involved. A level of agreement better than 1% for the total efficiency and a deviation lower than 3.5% for the full-energy-peak efficiencies were found.