M-TAG: A Modular Teaching-Aid for Geant4

Geant4 is a versatile Monte Carlo radiation transport simulation toolkit with steep learning curve. This work introduces user-code called M-TAG (Modular Radiation Teaching-Aid for Geant4), built on top of Geant4. designed to help gradually introduce the new users.The goal record quantities from simulated as it transported through geometries. simplifies inclusion geometric elements and detector components in by including classes. also provides basic validated examples some common development tasks. intercom modules, messenger classes, manage these To validate M-TAG, simulations were performed calculate range positrons water. One hundred million decays at center water-filled sphere radius 1 m allowed fluorine-18, carbon-11, oxygen-15 gallium-68. These results compared literature values. An inexperienced user was tasked creating model plastic scintillator-based conducting tests assess effectiveness teaching tool. The involved calculating dose detector's sensitive volume using 2x2 cm planar monoenergetic photon source spanning energies 20 100 keV. billion particles twice: once actual geometry replaced validity verified computing ratios comparing them mass-attenuation obtained NIST XCOM data sets.The mean positron travel distances within distribution Simulated energy spectra means 1.8% means. agreed values uncertainties.We have developed modular aid M-TAG. It used Geant4, who perform further validation simulations.