PIXE simulation in Geant4

Mantero, A.; Abdelouahed, H. Ben; Champion, C.; Bitar, Ziad El; Francis, Z.; Guèye, P.; Incerti, S.; Ivanchenko, V. N.; Maire, M.

doi:10.1002/xrs.1301

Cited by 38 publications

(31 citation statements)

References 39 publications

(63 reference statements)

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“…These phenomena can also lead to electron generation, either through atomic relaxation by fluorescence followed by a Bremstrahlung interaction or by the Auger process, or by plasmon degradation. A class is available in the Geant4-DNA extension to treat the atomic excitation modeling and the following atomic relaxation processes are now treated in a unified way in both Standard and Low-energy subpackages [48]: these already existing Geant4 classes could be used as a basis to model the atomic excitation and the following relaxation at lower energy.…”

Section: Discussionmentioning

confidence: 99%

Geant4 physics processes for microdosimetry simulation: Very low energy electromagnetic models for electrons in silicon

Valentin

Raine

Sauvestre

et al. 2012

Nuclear Instruments and Methods in Physics Research Section B:

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Section: Discussionmentioning

confidence: 99%

Geant4 physics processes for microdosimetry simulation: Very low energy electromagnetic models for electrons in silicon

Valentin

Raine

Sauvestre

et al. 2012

Nuclear Instruments and Methods in Physics Research Section B:

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“…41 This simulates both Auger electrons and fluorescence photons including full cascade relaxation processes. 42 The deexcitation likelihoods and energies for secondary particles for the 19 inner shells of a gold atom have already been added to the database.…”

Section: Ionization and Atomic De-excitationmentioning

confidence: 99%

An implementation of discrete electron transport models for gold in the Geant4 simulation toolkit

Sakata

Incerti

Bordage

et al. 2016

Journal of Applied Physics

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Gold nanoparticle (GNP) boosted radiation therapy can enhance the biological effectiveness of radiation treatments by increasing the quantity of direct and indirect radiation-induced cellular damage. As the physical effects of GNP boosted radiotherapy occur across energy scales that descend down to 10 eV, Monte Carlo simulations require discrete physics models down to these very low energies in order to avoid underestimating the absorbed dose and secondary particle generation. Discrete physics models for electron transportation down to 10 eV have been implemented within the Geant4-DNA low energy extension of Geant4. Such models allow the investigation of GNP effects at the nanoscale. At low energies, the new models have better agreement with experimental data on the backscattering coefficient, and they show similar performance for transmission coefficient data as the Livermore and Penelope models already implemented in Geant4. These new models are applicable in simulations focussed towards estimating the relative biological effectiveness of radiation in GNP boosted radiotherapy applications with photon and electron radiation sources. Gold nanoparticle (GNP) boosted radiation therapy can enhance the biological effectiveness of radiation treatments by increasing the quantity of direct and indirect radiation-induced cellular damage. As the physical effects of GNP boosted radiotherapy occur across energy scales that descend down to 10 eV, Monte Carlo simulations require discrete physics models down to these very low energies in order to avoid underestimating the absorbed dose and secondary particle generation. Discrete physics models for electron transportation down to 10 eV have been implemented within the Geant4-DNA low energy extension of Geant4. Such models allow the investigation of GNP effects at the nanoscale. At low energies, the new models have better agreement with experimental data on the backscattering coefficient, and they show similar performance for transmission coefficient data as the Livermore and Penelope models already implemented in Geant4. These new models are applicable in simulations focussed towards estimating the relative biological effectiveness of radiation in GNP boosted radiotherapy applications with photon and electron radiation sources. Published by AIP Publishing. [http://dx

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“…Specific cross sections can be defined for electrons, protons, and ions. Users can select from different sets of theoretical or empirical shell ionization cross sections [92].…”

Section: Atomic De-excitationmentioning

confidence: 99%