Anew physics model for the charged particle transport with Geant4
2011
An accurate modeling of the interactions of charged particles (protons, 2 H, 3 H, 3 He, α-particles…) with energies up to tenths of MeV is necessary for many physical problems and applications such as proton therapy or isotope production for medical imaging (e.g. 11 C and 18 F), activation calculations, accelerator shielding or material damage calculations. Most of the Monte Carlo simulation codes, and in particular the Geant4 simulation package, applied to these types of problems do rely on theoretical nuclear models rather than evaluated cross section data. It is well known that the validity of nuclear models used in Monte Carlo codes for describing the interaction of charged particles in the energy range up to tenths of MeV can be poor and lead to unacceptably large systematic uncertainties if the model parameters are not adjusted by comparison to experimental data. For this reason, we have developed the G4ParticleHP package for Geant4. The package allows simulating the interaction of charged particles interactions using evaluated nuclear data libraries for charged particles such as ENDF-B.VII or TENDL.
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