Simulation of Auger electron emission from nanometer-size gold targets using the Geant4 Monte Carlo simulation toolkit

A revised atomic deexcitation framework for the Geant4 general purpose Monte Carlo toolkit capable of simulating full Auger deexcitation cascades was implemented in June 2015 release (version 10.2 Beta). An overview of this refined framework and testing of its capabilities is presented for the irrad...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2016-04, Vol.372 (C), p.91-101
Main Authors: Incerti, S., Suerfu, B., Xu, J., Ivantchenko, V., Mantero, A., Brown, J.M.C., Bernal, M.A., Francis, Z., Karamitros, M., Tran, H.N.
Format: Article
Language:English
Subjects:
ATOMIC AND MOLECULAR PHYSICS
Auger electrons
Augers
Cascades
Computer simulation
Electromagnetic interactions
Geant4
Gold
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Low energy
Monte Carlo
Monte Carlo methods
Nanostructure
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Summary:A revised atomic deexcitation framework for the Geant4 general purpose Monte Carlo toolkit capable of simulating full Auger deexcitation cascades was implemented in June 2015 release (version 10.2 Beta). An overview of this refined framework and testing of its capabilities is presented for the irradiation of gold nanoparticles (NP) with keV photon and MeV proton beams. The resultant energy spectra of secondary particles created within and that escape the NP are analyzed and discussed. It is anticipated that this new functionality will improve and increase the use of Geant4 in the medical physics, radiobiology, nanomedicine research and other low energy physics fields.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2016.02.005